KR101135550B1 - Terminals for Transactions in Real Estate On-line, Devices for Transactions in Real Estate on Network, System and Method, Recording Medium and Information Storing Medium - Google Patents

Abstract

The present invention relates to an on-line real estate transaction terminal device, a real estate transaction device on a network, an online real estate transaction method and system using the same, and a recording medium and an information storage medium therefor, wherein the at least one seller terminal and / or In the real estate transaction terminal, real estate selling contract information including at least one of real estate registration information, real estate selling information, seller information, buyer information, and special information is transmitted to a real estate transaction apparatus (or server) on a network and stored in a predetermined database. A real estate transaction apparatus on a network for real estate sale contract information including at least one of real estate registration information, real estate purchase information, seller information, buyer information, and special information in at least one buyer terminal and / or real estate transaction terminal used by the real estate buyer ( Or a server), and analyzes the real estate sale contract information and the real estate purchase contract information to generate predetermined real estate sales contract information and store and manage the information in the database. Thereby, at least one real estate seller and buyer automatically verifies the identity of the real estate transaction party online, while efficiently determining the content of the real estate contract, and provides confidentiality, authentication, integrity and non-repudiation of the real estate transaction. By automatically securing, there is an advantage of conveniently handling a real estate contract that can efficiently deal with the disputes arising after the real estate sale process or sale.

Description

Terminal device for online real estate transaction, real estate transaction apparatus on network, online real estate transaction method and system using same, and recording medium and information storage medium therefor {terminals for transactions in real estate on-line, devices for transactions in real estate on network] , System and Method, Recording Medium and Information Storing Medium}

1 is a view showing a preferred functional configuration of a real estate sales contract system according to an embodiment of the present invention.

2 is a view showing a preferred functional configuration of a real estate sales contract terminal according to an embodiment of the present invention.

3 is a diagram illustrating a certificate profile for an encryption procedure of a real estate transaction system according to an embodiment of the present invention.

4 is a diagram illustrating a real estate sale contract information structure according to an embodiment of the present invention.

5 is a diagram illustrating a seller information structure of real estate sale contract information according to an exemplary embodiment of the present invention.

FIG. 6 is a diagram illustrating a structure of a real estate registration information for sale of real estate sale contract information according to an exemplary embodiment of the present invention.

7 is a diagram illustrating a real estate sale information structure of real estate sale contract information according to an embodiment of the present invention.

8A, 8B, and 8C are diagrams illustrating an implementation method of digitally signing real estate sale contract information according to an implementation method of the present invention.

9A, 9B, and 9C are diagrams illustrating an implementation method of selecting a property to be sold according to an embodiment of the present invention.

10A and 10B illustrate an implementation method of transmitting real estate sale contract information to a server according to an implementation method of the present invention.

11A and 11B illustrate an implementation method of encrypting and transmitting real estate sale contract information according to an implementation method of the present invention.

12 is a diagram showing an implementation method of storing real estate sale contract information according to one embodiment of the present invention.

13 is a view showing the structure of the real estate contract information storage area of the real estate sales management D / B according to an embodiment of the present invention.

14A and 14B illustrate an implementation method of transmitting real estate contract processing information to a purchaser terminal according to an exemplary embodiment of the present invention.

15 is a diagram illustrating an implementation method of transmitting real estate contract processing information according to an embodiment of the present invention.

16A and 16B illustrate an implementation method of transmitting real estate purchase contract information to a server according to an implementation method of the present invention.

17 is a view showing a real estate purchase contract information structure according to an embodiment of the present invention.

18 is a diagram illustrating a buyer information structure of real estate purchase contract information according to an embodiment of the present invention.

19A and 19B are diagrams illustrating one embodiment of encrypting and transmitting real estate purchase contract information according to one embodiment of the present invention.

20A and 20B illustrate an implementation method of storing real estate sales contract information through real estate purchase contract information according to an exemplary embodiment of the present invention.

21 is a view showing a preferred functional configuration of a real estate sales contract system according to another embodiment of the present invention.

22 is a diagram illustrating a real estate sales contract information structure according to an embodiment of the present invention.

FIG. 23 is a diagram illustrating an intermediary information structure of real estate sales contract information according to an embodiment of the present invention.

24 is a diagram illustrating an implementation method of transmitting real estate sales contract information to a server according to one embodiment of the present invention.

FIG. 25 is a diagram illustrating one implementation method of transmitting real estate sales contract information in an electronic envelope according to one implementation method of the present invention.

26 is a diagram illustrating an implementation method of transmitting real estate sales contract information to a server according to one embodiment of the present invention.

27A and 27B illustrate an implementation method of encrypting and transmitting real estate purchase contract information according to an implementation method of the present invention.

28 is a diagram showing an implementation method of storing real estate sales contract information according to one embodiment of the present invention.

29 is a view showing the structure of the real estate contract information storage area of the real estate sales management D / B according to an embodiment of the present invention.

<Description of main parts of drawing>

100 server 105 receiver

110: identification information unit 115: transmission unit

120: Real Estate Information Department 125: Information Analysis Department

130: authentication unit 135: information management unit

145: real estate sales management D / B 150: identification server

155: real estate information server 160: real estate registration server

200a: seller terminal 200b: buyer terminal

200c: intermediary terminal 240: user interface unit

245: information input unit 250: information output unit

255: information generating unit 260: information receiving unit

265: information transmission unit 270: extraction unit

The present invention receives predetermined real estate sale contract information from at least one seller terminal and / or real estate transaction terminal used by a real estate seller in a real estate transaction apparatus (or server) on a predetermined network, and stores the predetermined real estate sales contract information in a predetermined database. Predetermined real estate sales contract information for receiving predetermined real estate purchase contract information from at least one buyer terminal and / or real estate transaction terminal used by the real estate buyer and matching the real estate sales contract information to provide a predetermined online real estate transaction service; An online real estate transaction terminal, characterized in that for generating and storing and managing in the database, the real estate transaction device on the network and the online real estate transaction method and system using the same and a recording medium and information storage medium therefor will be.

In general, real estate transactions are conducted through real estate brokerage agencies, because the real estate transactions are complicated and there is a lot of information to confirm, which makes it difficult for the public to access and process them directly.

For safe real estate transactions, make sure that the seller is the owner of the real estate by checking the registered copy of the register before the contract, and confirming whether the seller is the owner of the real estate, and studying and inspecting the land ledger, the building ledger, and the city planning confirmation (eg, unauthorized). Contract with a legitimate seller (e.g., verifying the seal for sale of real estate when doing business with an owner or agent on the register).

In addition, even if the seller is the owner on the register, the owner must be a natural person who can sell the real estate, and the transaction with a pseudo incapacitator (for example, an insolvent, a limited payer, a minor, etc.) becomes invalid. In addition, if the seller is a corporation, it must be checked whether the corporation owns the legal personality or if the legal representative is authorized to dispose of the real estate.

In addition, when the real estate is shared by at least two or more people, the disposal of the share is possible without the consent of the other sharer, but in order to dispose of the share, all of the sharer need public consent. You should check. In addition, when at least two or more of the real estates are combined, all the owners must agree to the disposal of the mixtures as well as the shares of the mixtures. In addition, if at least two or more of the real estate is to be owned, since the concept of equity does not exist in the total oil, all the total owners must be resolved to dispose of the total property.

However, in the case of the conventional real estate brokerage agency ignoring the various problems described above, only a uniform contract is prepared, and additional matters are added as a special contract every time. As a result, unless the real estate trading party reports the situation of the real estate and / or the situation of the trading party to the brokerage agency first, a dispute arises in the real estate transaction.

The present invention is derived to solve the above problems, a predetermined real estate sales contract from at least one seller terminal and / or real estate transaction terminal used by a real estate seller in a real estate transaction apparatus (or server) on a predetermined network Receives and stores information in a predetermined database, receives predetermined real estate purchase contract information from at least one or more buyer terminals and / or real estate transaction terminals used by a predetermined real estate buyer, and matches the real estate selling contract information with predetermined online real estate. An online real estate transaction terminal device, a real estate transaction device on a network, and an online real estate transaction method and time using the same, which generate predetermined real estate sales contract information for providing a transaction service, and store and manage the information in a database. An object of the system and the recording medium and an information storage medium therefor.

Online real estate transaction system in the present invention is a real estate seller terminal for transmitting a predetermined identification information to the real estate transaction means; In connection with a predetermined identification means, authenticating and / or confirming the identity of the real estate seller based on the identification information transmitted by the real estate seller terminal, and the real estate seller information and the real estate seller authentication information is determined Real estate transaction means for transmitting to the information management means; After extracting or receiving at least one or more real estate information owned by the real estate seller corresponding to the real estate seller information transmitted by the real estate transaction means, such as real estate location information, from a storage medium, at least one or more owned by the real estate seller And real estate information management means for transmitting the real estate information to the real estate transaction means, wherein the real estate transaction means includes at least one real estate information owned by the real estate seller transmitted by the real estate information management means. When the real estate seller terminal selects specific real estate information to be sold from the at least one real estate information owned by the real estate seller, the real estate seller terminal receives the sale target real estate selection information of the real estate seller terminal, Providing display information of the real estate corresponding to the previously selected information to the real estate seller terminal, outputting an electronic document and / or a web page to which the real estate display information has been previously input from the real estate seller terminal, and through the predetermined input means; Transmits the seller's information input from the seller of the property, the property sales information including the real estate sales payment method, and the predetermined real estate sales contract information including at least one special contract information in the electronic document, and / or the When provided through a web page, it is received, and then stored in a predetermined storage medium.

According to an embodiment of the present invention, the real estate transaction means is to confirm the electronic signature when providing the real estate seller electronic signature attached to the real estate seller contract information in the real estate seller terminal, and / or the real estate When the seller terminal encrypts the real estate selling contract information with a predetermined secret key, and provides the encrypted real estate selling contract information and the information encrypted by the real estate trading means public key, the real estate trading means individual. It is preferable to confirm the secret key using a key, and to verify the real estate selling contract information using the confirmed secret key, and / or to encrypt the real estate selling contract information with a predetermined encryption algorithm at the real estate selling terminal. To sell the encrypted real estate upon providing it by encryption. Preferably, the real estate selling contract information is confirmed by decrypting contract information, and / or when the real estate selling contract terminal transmits the real estate selling contract information in an electronic document, the real estate display information area of the electronic document; Each data field provided in a database for storing a predetermined real estate sales contract information by extracting at least one information inputted in the real estate seller information area, a real estate sales information area including a real estate sales payment method, and a real estate rider information area. It is preferable to store in.

According to an embodiment of the present invention, the real estate transaction means includes the provided real estate sale information, real estate seller information, and real estate sale payment method when the real estate seller terminal provides the real estate sale contract information through a web page. Preferably, at least one real estate selling information and at least one real estate specialty information are extracted and stored in each data field provided in a database for storing predetermined real estate selling contract information, and / or stored in at least one real estate buyer terminal. It is preferable to provide real estate sale contract information stored in a medium, and / or to authenticate and / or verify the identity of the real estate buyer based on the identification information transmitted by the real estate buyer terminal when the real estate buyer terminal is connected. desirable.

According to an embodiment of the present invention, the real estate transaction means is connected to the real estate buyer terminal, the real estate display information to the real estate buyer terminal, the real estate seller information and the payment method for real estate sales payments in connection with the storage medium; Provide real estate buyer contract information including at least one of real estate selling information and at least one real estate seller specialty information, and the predetermined real estate selling contract information including at least one of the at least one real estate buyer contract information. Outputting electronic documents and / or web pages previously inputted, and information on buyers inputted from the real estate buyers through predetermined input means, and request for change of real estate sales information including the real estate transaction payment method; Real estate purchase information, including payment methods Receiving the purchaser's contract information including at least one buyer's rider information (and / or seller's rider information change request information) included in the electronic document, and / or providing the same through the web page. Afterwards, it is desirable to store in a predetermined storage medium.

In addition, the real estate transaction means is a purchase request information of the real estate sale information including the real estate sales payment method in the electronic document containing the real estate purchase contract information-real estate purchase information including the real estate sales payment method-and the buyer If there is no rider information (and / or seller rider information change request information), the property sale information including the real estate display information area, the real estate seller information area, the real estate buyer information area, and the method of payment for real estate sales in the electronic document; It is preferable to extract the area and at least one or more pieces of information input in the real estate rider information area and store them in respective data fields provided in a database for storing the real estate sale contract information.

In addition, the real estate transaction means is a change request information of the real estate sale information including the real estate sale price payment method in the real estate purchase contract information provided through the web page-real estate purchase information including the real estate sale payment method- And the buyer's rider information (and / or seller's rider information change request information), real estate sale information including the real estate labeling information provided above, real estate seller information, real estate buyer information, payment method for real estate sales, and real estate. It is preferable to extract at least one special contract information and store it in each data field provided in a database for storing real estate sales contract information.

In addition, the real estate transaction means is a purchase request information of the real estate sale information including the real estate sales payment method in the electronic document containing the real estate purchase contract information-real estate purchase information including the real estate sales payment method-and the buyer Request information for change of real estate sale information including the real estate purchase price payment method in the real estate purchase contract information provided through the web page or with special information (and / or seller special information requested to change) If there is real estate purchase information including payment method and buyer special information (and / or seller special information request information), change of real estate sale information including payment method for real estate included in the real estate purchase contract information; Request information-real estate purchase information including the real estate payment method-and It is preferable to provide the buyer special information (and / or seller special information change request information) to the real estate seller terminal, the change request information of the real estate seller information including the payment method for real estate in the real estate seller terminal-the real estate When real estate purchase information, including the payment method of payment, and the transaction approval information for the buyer special information (and / or the seller special information change request information) are provided, the real estate purchase contract information provided through the real estate buyer terminal is prescribed. It is preferable to store the real estate sales contract information.

In addition, the real estate transaction means is to confirm the electronic signature when providing the real estate buyer buyer electronic signature to the real estate purchase contract information in the real estate buyer terminal, and / or sell the real estate in the real estate buyer terminal After encrypting the contract information with a predetermined secret key, and providing the encrypted real estate purchase contract information and the information encrypted with the secret key using the real estate transaction means public key, the secret using the real estate transaction means private key It is preferable to confirm a key, and to verify the real estate purchase contract information using the confirmed secret key, and / or to provide the real estate purchase contract information by a predetermined encryption algorithm in the real estate buyer terminal Decrypts the encrypted real estate purchase contract information To make a real estate purchase agreement over the information being preferred.

In addition, the real estate transaction means is the real estate seller contract information and / or the real estate sales contract electronic document containing the real estate sales contract information, and / or the web page containing the real estate sales contract information and the real estate seller terminal and / or It is preferable to provide to the real estate buyer terminal, the real estate seller contract information and / or the real estate sales contract electronic document containing the real estate sales contract information, and / or the web page containing the real estate sales contract information, the real estate seller A real estate sales contract electronic document provided to the terminal and / or the real estate buyer terminal and including the real estate sales contract information and / or the real estate sales contract information at the real estate seller terminal and / or the real estate buyer terminal, and / or The web page containing the real estate sale contract information When providing an electronic signature and / or authentication information, it is desirable to receive it and store it in a predetermined storage medium.

According to another aspect of the present invention, an online real estate transaction system includes: a real estate seller terminal for transmitting predetermined identification information and predetermined real estate location information to a real estate transaction means on a network; And verifying and / or confirming the identity of the real estate seller based on the identification information transmitted from the real estate seller terminal in association with a predetermined identification means, and the various real estate registration information-real estate sales contract included. The real estate registration information corresponding to the real estate location information is extracted or provided in association with a storage medium (or the storage medium operating means) that stores and manages real estate display information and the like, and receives the real estate registration information from the real estate seller terminal. The real estate seller terminal, the real estate seller terminal, and outputs an electronic document and / or a web page to which the real estate registration information provided by the real estate transaction means is input, the predetermined input means Seller information input from the real estate seller through the real estate payment price payment room Real estate selling information including; and predetermined real estate selling contract information including at least one special contract information in the electronic document and transmitted, and / or provided through the web page. The means may include storing the electronic document in a database for storing the real estate selling contract information and / or transmitting the real estate selling contract information in the electronic document in the real estate selling terminal. When the sale contract information is transmitted in an electronic document, the real estate registration information area-real estate display information area, etc.-of the electronic document, the real estate seller information area, the real estate sale information area including the real estate payment method, and the real estate It extracts at least one information inputted in the rider information area and predetermined When the real estate selling contract information is stored in each data field provided in the database for storing the selling property contract information or the real estate selling contract terminal provides the real estate selling contract information through a web page, the provided real estate registration information-real estate display information, etc .; And extracting at least one real estate seller information, real estate selling information including a real estate sales payment method, and real estate specialty information, and storing the data in each data field provided in a database for storing the predetermined real estate sales contract information. .

According to the embodiment of the present invention, the real estate transaction means, when providing the real estate registration information to the seller terminal, it is preferable to further provide the seller information read through the seller identity authentication and / or confirmation.

According to an embodiment of the present invention, when the real estate seller terminal further provides the seller information read through the seller identity authentication and / or confirmation when the real estate registration means provides the real estate registration information, the electronic document And / or input and output the seller information provided by the real estate transaction means on a web page.

In addition, the real estate seller terminal, when the real estate seller terminal provides the real estate selling contract information to the real estate transaction means, attaching the real estate seller electronic signature to the real estate selling contract information, the real estate transaction means, the real estate It is preferable to confirm the electronic signature attached to the selling contract information, and / or the real estate seller terminal encrypts the real estate selling contract information with a predetermined secret key when providing the selling property information to the real estate transaction means. Thereafter, the encrypted real estate selling contract information and the private key is provided with information encrypted by the real estate transaction means public key, and the real estate transaction means checks the private key using the real estate transaction means private key, The real estate sales contract using the verified secret key To make beams are preferred.

According to an embodiment of the present invention, the online real estate transaction system provides the real estate sales contract information by encrypting the real estate sales contract information by a predetermined encryption algorithm when providing the real estate sales contract information to the real estate transaction means. It is preferable to confirm the real estate sale contract information by decrypting the encrypted real estate sale contract information.

According to an embodiment of the present invention, the real estate transaction means includes at least one real estate buyer information, such as real estate registration information stored in the storage medium, such as real estate display information, the real estate seller information, and the payment method for real estate sales. It is desirable to provide real estate selling information and real estate selling contract information including at least one of the real estate seller special information, and / or based on the identification information transmitted by the real estate buyer terminal when the real estate buyer terminal access It is desirable to authenticate and / or verify the identity of the real estate buyer.

In addition, the real estate transaction means, in connection with the storage medium, the real estate registration information-real estate display information, etc., the real estate seller information and the payment method of the real estate sales payment to the real estate buyer terminal in connection with the storage medium; Real estate selling contract information including predetermined real estate selling contract information including at least one selling property and real estate seller special information; and the at least one real estate selling contract information is previously inputted from the real estate buying terminal. Outputting electronic documents and / or web pages, purchaser information input from the real estate buyer through a predetermined input means, and request for change of real estate selling information including the real estate transaction payment method; Real estate purchase information, including; And, if provided with the electronic document, and / or provided through the web page, predetermined real estate purchase contract information including at least one or more information (and / or seller special information request information). It is desirable to store in a predetermined storage medium.

The real estate transaction means may further provide the buyer information read through the buyer identification and / or confirmation when providing the real estate sale contract information to the buyer terminal, and / or the real estate transaction means. In the case of providing the real estate sale contract information, the buyer information provided by the real estate transaction means in the electronic document and / or web page if the buyer information further read through the buyer identity authentication and / or confirmation It is preferable to input and output.

In addition, the real estate transaction means is a purchase request information of the real estate sale information including the real estate sales payment method in the electronic document containing the real estate purchase contract information-real estate purchase information including the real estate sales payment method-and the buyer If there is no rider information (and / or seller rider information change request information), the electronic document is stored in a database for storing real estate contract information, and / or the real estate registration information area-real estate display information area of the electronic document. And a predetermined real estate sales contract information by extracting at least one information inputted in the real estate seller information area, real estate buyer information area, real estate seller information area including real estate payment method, and real estate contract information area. To store each data field in the storage database desirable.

In addition, the real estate transaction means is a change request information of the real estate sale information including the real estate sale price payment method in the real estate purchase contract information provided through the web page-real estate purchase information including the real estate sale payment method- And the buyer's rider information (and / or seller's rider information change request information), including the real estate registration information provided above, such as real estate indication information, real estate seller information, real estate buyer information, and real estate payment method. It is preferable to extract at least one real estate sale information and real estate rider information and store them in each data field provided in a database for storing predetermined real estate sales contract information.

In addition, the real estate transaction means is a purchase request information of the real estate sale information including the real estate sales payment method in the electronic document containing the real estate purchase contract information-real estate purchase information including the real estate sales payment method-and the buyer Request information for change of real estate sale information including the real estate purchase price payment method in the real estate purchase contract information provided through the web page or with special information (and / or seller special information requested to change) If there is real estate purchase information including payment method and buyer special information (and / or seller special information request information), change of real estate sale information including payment method for real estate included in the real estate purchase contract information; Request information-real estate purchase information including the real estate payment method-and It is preferable to provide the buyer special information (and / or seller special information change request information) to the real estate seller terminal, the change request information of the real estate seller information including the payment method for real estate in the real estate seller terminal-the real estate When real estate purchase information, including the payment method of payment, and transaction approval information for buyer special information (and / or seller special information change request information) are provided, the real estate purchase contract information provided through the real estate buyer terminal is obtained from a predetermined real estate. It is preferable to store the transaction contract information.

In addition, the real estate transaction means is to confirm the electronic signature when providing the real estate buyer buyer electronic signature to the real estate purchase contract information in the real estate buyer terminal, and / or sell the real estate in the real estate buyer terminal After encrypting the contract information with a predetermined secret key, and providing the encrypted real estate purchase contract information and the information encrypted with the secret key using the real estate transaction means public key, the secret using the real estate transaction means private key It is preferable to confirm a key, and to verify the real estate purchase contract information using the confirmed secret key, and / or to provide the real estate purchase contract information by a predetermined encryption algorithm in the real estate buyer terminal Decrypts the encrypted real estate purchase contract information To make a real estate purchase agreement over the information being preferred.

In addition, the real estate transaction means is the real estate seller contract information and / or the real estate sales contract electronic document containing the real estate sales contract information, and / or the web page containing the real estate sales contract information and the real estate seller terminal and / or It is preferable to provide to the real estate buyer terminal, and / or real estate sales contract electronic document containing the real estate sales contract information and / or real estate sales contract information, and / or web page containing the real estate sales contract information A real estate sales contract electronic document provided to the real estate seller terminal and / or the real estate buyer terminal and including the real estate sales contract information and / or the real estate sales contract information in the real estate seller terminal and / or the real estate buyer terminal; And / or on a webpage containing such real estate contract information. When providing a predetermined digital signature and / or authentication information, it is preferable to receive it and store it in a predetermined storage medium.

According to the method of the present invention, the real estate transaction means is preferably received from the real estate seller terminal information related to the real estate trust registration, and stored in a predetermined storage medium, and / or the real estate buyer terminal and / or It is preferable to receive predetermined real estate transaction relief insurance-related information from the real estate transaction-related insurance company server, and to store in a predetermined storage medium.

According to the method of the present invention, the real estate transaction means may be composed of a single server (or device), or may be composed of a plurality of servers (or devices), each of which means a single server (or device). It may be provided, or may be provided in a plurality of servers (or devices).

In another embodiment of the present invention, the online real estate transaction system includes predetermined real estate seller identification information (or the seller information), registration information of real estate for sale (e.g., real estate display information, etc.), and sale of real estate for sale through a predetermined input means. Real estate selling information including payment method, and predetermined real estate selling contract information including at least one special contract information in a predetermined electronic document to be transmitted to a real estate transaction means on a network, and / or a predetermined web page Real estate seller terminal provided to the real estate transaction means through; And verifying and / or confirming the identity of the property seller based on the identification information transmitted from the property seller terminal in association with a predetermined identification means, and converting the property sale contract information from the property seller terminal to the electronic document. The electronic document is stored in a database for storing real estate sale contract information, and / or when the real estate seller terminal includes the real estate sale contract information in an electronic document, and transmits the electronic document. The real estate registration information area-real estate display information area, etc., the real estate seller information area, the real estate sales information area including the real estate payment method, and at least one or more information inputted in the real estate rider information area are extracted. In each data field in the database for storing the sales contract information. Or store or sell the real estate selling contract information through the web page in the real estate seller terminal, the real estate selling information including the provided real estate registration information-real estate display information, real estate seller information, and real estate sales payment method. And real estate transaction means for extracting at least one information and at least one real estate special information to store in each data field provided in a predetermined database for storing the sale contract information. The dependent content is similar to the other online real estate transaction systems.

According to the method of the present invention, the real estate transaction means is preferably received from the real estate seller terminal information related to the real estate trust registration, and stored in a predetermined storage medium, and / or the real estate buyer terminal and / or It is preferable to receive predetermined real estate transaction relief insurance-related information from the real estate transaction-related insurance company server, and to store in a predetermined storage medium.

According to the method of the present invention, the real estate transaction means may be composed of a single server (or device), or may be composed of a plurality of servers (or devices), each of which means a single server (or device). It may be provided, or may be provided in a plurality of servers (or devices).

In another embodiment of the present invention, the predetermined real estate seller identification information (or the real estate seller information), the predetermined real estate buyer identification information (or the real estate buyer information), and the registration information of the property to be sold through another predetermined input means- Real estate transaction means on the network including real estate labeling information and the like, real estate transaction information including a payment method of sale of real estate to be sold, and predetermined real estate contract information including at least one special contract information in a predetermined electronic document. A real estate transaction terminal for transmitting to the real estate transaction means and / or provided to the real estate transaction means through a predetermined web page; And identify and / or confirm the identity of the real estate seller and / or real estate buyer based on the real estate seller and / or real estate buyer identity identification information transmitted from the real estate transaction terminal in association with a predetermined identification means. When the real estate transaction terminal transmits the real estate sale contract information in an electronic document, the electronic document is stored in a database for storing real estate sale contract information, and / or the real estate transaction contract information is transmitted from the real estate transaction terminal. A real estate registration information area of the electronic document, such as a real estate display information area, a real estate seller information area, a real estate buyer information area, and a real estate sales information area including a payment method for real estate payments; Extracts one or more pieces of information entered into the real estate rider information area Definition When the real estate sale contract information is stored in each data field included in the database for storing the real estate sale contract information or when the real estate transaction contract information is provided through a web page, Real estate transaction means for extracting at least one real estate seller information, including real estate seller information, payment method for real estate sales, and real estate specialty information and stores in each data field provided in a database for storing predetermined real estate sales contract information It characterized by comprising;

According to the embodiment of the present invention, the real estate transaction terminal further provides the real estate agent identification information to the real estate transaction means, the real estate transaction means, in connection with a predetermined identification means, the real estate transaction terminal is transmitted It is preferable to authenticate and / or verify the identity of the real estate agent based on the real estate agent identification information.

When the real estate transaction contract information is provided to the real estate transaction means, the real estate transaction terminal attaches the real estate seller electronic signature and / or the real estate buyer electronic signature and / or the real estate agent electronic signature to the real estate transaction contract information. Preferably, the real estate transaction means, it is preferable to confirm the real estate seller electronic signature and / or real estate buyer electronic signature attached to the real estate sales contract information.

When the real estate transaction contract information is provided to the real estate transaction means, the real estate transaction terminal encrypts the real estate transaction contract information with a predetermined secret key, and then stores the encrypted real estate transaction contract information and the secret key. Providing information encrypted by a real estate transaction means public key, wherein the real estate transaction means verifies the secret key using the real estate transaction means private key, and confirms the real estate transaction contract information using the verified secret key It is desirable to.

According to an embodiment of the present invention, the online real estate transaction system provides the real estate transaction contract information by a predetermined encryption algorithm when providing the real estate transaction contract information to the real estate transaction means. It is preferable to confirm the real estate sales contract information by decrypting the encrypted real estate sales contract information.

In addition, the real estate transaction means is the real estate transaction contract information and / or the real estate sales contract electronic document containing the real estate sales contract information, and / or the web page containing the real estate sales contract information the real estate transaction terminal and / or It is preferable to provide to the real estate seller terminal and / or the real estate buyer terminal, the real estate sales contract electronic document containing the real estate sales contract information and / or the real estate sales contract information, and / or the real estate sales contract information A web page to the real estate transaction terminal and / or the real estate seller terminal and / or the real estate buyer terminal, and the real estate transaction contract is performed at the real estate transaction terminal and / or the real estate seller terminal and / or the real estate buyer terminal. Information and / or the real estate contract information. When a predetermined electronic signature and / or authentication information is attached to a real estate sales contract electronic document and / or a web page including the real estate sales contract information, it is preferable to receive the information and store it in a predetermined storage medium.

According to an embodiment of the present invention, the real estate transaction means receives the real estate trust registration information from the real estate transaction terminal and / or the real estate seller terminal, and stores in a predetermined storage medium, and / or It is preferable to receive predetermined real estate transaction security insurance-related information from the real estate transaction terminal and / or the real estate buyer terminal and / or the real estate transaction-related insurance company server, and to store in the predetermined storage medium.

According to the method of the present invention, the real estate transaction means may be composed of a single server (or device), or may be composed of a plurality of servers (or devices), each of which means a single server (or device). It may be provided, or may be provided in a plurality of servers (or devices).

In the present invention, the online real estate transaction method comprises the steps of, when the real estate seller terminal in the predetermined information receiving means transmits the predetermined identification information and the information on the location of the real estate to be sold; And authenticating and / or confirming the identity of the property seller based on the identification information transmitted from the property seller terminal in a predetermined identification means. Corresponding to the real estate location information in association with a storage medium (or the storage medium operating means) that stores and manages predetermined real estate registration information, such as various real estate display information included in a real estate sales contract, in a predetermined real estate information checking means. Extracting or receiving real estate registration information; Providing the real estate registration information to the real estate seller terminal in a predetermined information transmitting means; Outputting an electronic document and / or a web page on which the real estate registration information provided by the information transmitting means is input in the real estate seller terminal; The seller information input from the seller of the real estate through a predetermined input means in the real estate seller terminal, real estate selling information including a real estate sales payment method, and predetermined real estate sales contract information including at least one special contract information; Including in an electronic document and transmitting to a predetermined real estate transaction means, and / or providing the predetermined real estate transaction means through the web page; And storing the electronic document in a database for storing real estate sale contract information in the real estate transaction means, and / or real estate registration information area-real estate display information area, etc. of the electronic document, real estate seller information area; Extracts the real estate selling information area including the payment method of real estate and at least one information input in the real estate contract information area and stores them in each data field provided in a database for storing the real estate selling contract information; or The real estate registration information provided through the web page, such as real estate display information, real estate seller information, real estate sales information including real estate sales payment method, and real estate specialty information, the predetermined real estate sales contract information is extracted. In each data field in the storage database. It comprises a; step comprising the.

Another online real estate transaction method in the present invention is a real estate seller terminal in a predetermined information receiving means through a predetermined input means, the predetermined seller seller identification information (or the seller information), and the registered information-real estate display information of the real estate to be sold And the like, and transmit the real estate sales information including the payment method of the real estate to be sold and the predetermined real estate sales contract information including at least one special contract information in a predetermined electronic document, and / or If provided through a web page, receiving it; Authenticating and / or confirming the identity of the property seller based on the identification information transmitted from the property seller terminal in a predetermined identification means; And storing the electronic document in a database for storing real estate sale contract information in a predetermined real estate transaction means, and / or real estate registration information area of the electronic document, such as a real estate display information area, and a real estate seller information area. Extracts and stores at least one information input in the real estate selling information area including the payment method of real estate and at least one information input in the real estate contract information area and stores the data in each data field provided in a database for storing the real estate selling contract information; or The real estate registration information provided through the web page, such as real estate display information, real estate seller information, real estate selling information including a real estate sales payment method, and real estate specialty information, the predetermined real estate sales contract information is extracted. In each data field in the storage database Characterized in that comprises a; chapter comprising:.

According to the method of the present invention, the real estate selling contract information is attached to the real estate seller electronic signature, and / or encrypted with a predetermined secret key, and / or encrypted by a predetermined encryption algorithm to the real estate transaction means. It is preferable to provide.

According to the implementation method of the present invention, the online real estate transaction method, the real estate registration information stored in the storage medium from the real estate transaction means to at least one real estate buyer terminal-real estate display information, etc., the real estate seller information and the real estate Preferably, the method further includes providing real estate selling information including a payment method and real estate selling contract information including at least one of the real estate seller special information, and / or accessing a predetermined real estate buyer terminal. And authenticating and / or verifying the identity of the real estate buyer based on the identification information transmitted by the real estate buyer terminal.

According to the implementation method of the present invention, the online real estate transaction method is connected to the storage medium, when connected to the real estate buyer terminal, real estate registration information-real estate display information, etc.-and the real estate seller information to the real estate buyer terminal; Providing, to the real estate buyer terminal, real estate selling information including the real estate selling payment method and predetermined real estate selling contract information including at least one of the real estate seller specialty information; And outputting the electronic document and / or the webpage to which the at least one real estate selling contract information is previously input at the real estate buyer terminal, the buyer information inputted from the real estate buyer through a predetermined input means, and the payment method of the real estate transaction. Request for change of real estate sale information, including real estate purchase information, including the real estate purchase payment method; and a predetermined real estate purchase including at least one buyer special information (and / or seller special information request information). Receiving contract information when the contract information is included in the electronic document and / or provided through the web page; The request information for change of real estate sale information including the real estate sales payment method in the electronic document including the real estate purchase contract information received-real estate purchase information including the real estate sales payment method-and buyer special information (and And / or seller's rider information change request information), store the electronic document in a database for storing real estate sales contract information, and / or the real estate registration information area (real estate display information area, etc.) of the electronic document; Extracts at least one information entered in the real estate seller information area, the real estate buyer information area, the real estate sales information area including the real estate payment method, and the real estate rider information area, and stores the information in a predetermined database for storing real estate sales contract information. Stored in each data field provided, and through the web page Request for change of real estate sale information including the real estate purchase payment method in the real estate purchase contract information provided-real estate purchase information including the real estate sale payment method-and buyer special information (and / or seller special information change) Request information), at least one or more of the provided real estate registration information, such as real estate display information, real estate seller information, real estate buyer information, real estate selling information including a real estate payment method, and real estate special information. Extraction request information for real estate sale information including the real estate sales payment method in an electronic document including the real estate purchase contract information, and store in each data field provided in the database for storing the real estate sale contract information; Real estate purchase information including the payment method for real estate- Purchase request information (and / or seller special information change request information), or the real estate purchase contract information provided through the web page change request information of the real estate sale information including the payment method for real estate sale-the real estate sale If there is real estate purchase information including payment method and buyer special information (and / or seller special information request information), the sale of real estate information including the real estate sale payment method included in the real estate purchase contract information; Providing the change request information-the real estate purchase information including the real estate payment payment method-and the buyer special information (and / or seller special information change request information) to the real estate seller terminal; .

According to the implementation method of the present invention, the online real estate transaction method is connected to the storage medium, when connected to the real estate buyer terminal, real estate registration information-real estate display information, etc.-and the real estate seller information to the real estate buyer terminal; Providing, to the real estate buyer terminal, real estate selling information including the real estate selling payment method and predetermined real estate selling contract information including at least one of the real estate seller specialty information; The at least one real estate buyer contract information from the real estate buyer terminal outputs an electronic document and / or a web page previously input, and the buyer information input from the real estate buyer through a predetermined input means and payment of the real estate sale price Predetermined property including at least one change request information of real estate selling information including a real estate purchase information; information on real estate purchases including the real estate payment method; and purchaser special information (and / or seller special information change request information); Receiving the purchase agreement information when the information is included in the electronic document and / or provided through the web page; The request information for change of real estate sale information including the real estate sales payment method in the electronic document including the real estate purchase contract information received-real estate purchase information including the real estate sales payment method-and buyer special information (and And / or seller's rider information change request information), store the electronic document in a database for storing real estate sales contract information, and / or the real estate registration information area (real estate display information area, etc.) of the electronic document; Extracts at least one information entered in the real estate seller information area, the real estate buyer information area, the real estate sales information area including the real estate payment method, and the real estate rider information area, and stores the information in a predetermined database for storing real estate sales contract information. Stored in each data field provided, and through the web page Request for change of real estate sale information including the real estate purchase payment method in the real estate purchase contract information provided-real estate purchase information including the real estate sale payment method-and buyer special information (and / or seller special information change) Request information), at least one or more of the provided real estate registration information, such as real estate display information, real estate seller information, real estate buyer information, real estate selling information including a real estate payment method, and real estate special information. Extraction request information of real estate sale information including the real estate sales payment method in an electronic document including the real estate purchase contract information, and stored in each data field provided in the database for storing the predetermined real estate sale contract information Real estate purchase information including the payment method for real estate- Purchase request information (and / or seller special information change request information), or the real estate purchase contract information provided through the web page change request information of the real estate sale information including the payment method for real estate sale-the real estate sale If there is real estate purchase information including payment method and buyer special information (and / or seller special information request information), the sale of real estate information including the real estate sale payment method included in the real estate purchase contract information; Providing the change request information-the real estate purchase information including the real estate payment payment method-and the buyer special information (and / or seller special information change request information) to the real estate seller terminal; .

In addition, the real estate transaction means is the change request information of the real estate sale information including the real estate sales payment method in the real estate seller terminal-real estate purchase information including the real estate sales payment method-and the buyer special information (and / or When the transaction approval information for the seller special information change request information) is provided, the real estate purchase contract information provided through the real estate buyer terminal may be further stored as predetermined real estate sales contract information. Transaction request information change information of the real estate sale information including the payment method of the real estate in the terminal-real estate purchase information including the payment method for real estate-and buyer special information (and / or seller special information change request information) If the approval information is provided, the real estate buyer terminal It is preferable to further comprise the step of storing the real estate purchase contract information provided through the predetermined real estate sales contract information.

In addition, the real estate purchase contract information is preferably attached to the real estate buyer electronic signature, and / or encrypted with a predetermined secret key, and / or encrypted by a predetermined encryption algorithm provided to the real estate transaction means. .

According to the implementation method of the present invention, the online real estate transaction method is linked to a predetermined information transmission means in the real estate transaction means, real estate sales contract electronic document containing the real estate sales contract information and / or real estate sales contract information, And / or providing a web page including the real estate sale contract information to the real estate seller terminal and / or the real estate buyer terminal.

In addition, the real estate transaction means is associated with a predetermined information transmission means in the real estate transaction means, the real estate sales contract electronic document containing the real estate sales contract information and / or the real estate sales contract information, and / or the real estate sales contract Providing a web page including information to the real estate seller terminal and / or the real estate buyer terminal; And a real estate sales contract electronic document including the real estate sales contract information and / or the real estate sales contract information in the real estate seller terminal and / or the real estate buyer terminal in association with the predetermined information receiving means in the real estate transaction means. And / or providing and attaching a predetermined electronic signature and / or authentication information to a web page including the real estate sale contract information, and storing the received electronic signature and / or authentication information in a predetermined storage medium.

According to the present invention, the recording medium provided in the online real estate transaction system is characterized by recording a program for executing the online real estate transaction method.

Another online real estate transaction method according to the present invention includes seller identification information (or the seller seller information), predetermined buyer buyer identification information (or the buyer buyer information), registration information-real estate display information of the property to be sold, etc. -And transmit the real estate transaction information including the payment method of sale of the real estate to be sold and the predetermined real estate transaction contract information including at least one special contract information in a predetermined electronic document, and / or a predetermined web. If provided through a page, receiving it; Authenticating and / or verifying the identity of the real estate seller and / or real estate buyer based on the real estate seller and / or real estate buyer identity identification information transmitted from the real estate transaction terminal in a predetermined identification means; A predetermined real estate transaction means stores the electronic document in a predetermined database for storing real estate sales contract information, and / or a real estate registration information area (real estate display information area, etc.) of the electronic document, a real estate seller information area; Each data field provided in a database for storing a predetermined real estate sales contract information by extracting the real estate buyer information area, a real estate sales information area including a real estate sales payment method, and at least one information input in the real estate rider information area The real estate registration information, such as real estate registration information, and the like, which are stored in the webpage or through the web page, real estate seller information, real estate sales information including a real estate payment method, and real estate specialty information. Real estate sales contract information in a database for storage A step of storing each data field; including characterized in that formed.

According to the present invention, the recording medium provided in the online real estate transaction system is characterized by recording a program for executing the online real estate transaction method.

In the present invention, the online real estate transaction apparatus on the network, in connection with the real estate seller terminal and / or real estate buyer terminal and / or real estate transaction terminal, the predetermined real estate seller identification information (or real estate seller information) and the predetermined real estate buyer identity verification Information (or real estate seller information), predetermined real estate registration information, such as various real estate display information included in the real estate sales contract, real estate sales information including real estate sales payment method, and at least one special contract information. Receiving unit for receiving the predetermined real estate sales contract information; And real estate information for storing the real estate sales contract information in the form of an electronic document, and / or storing each information included in the real estate sales contract information in each data field provided in a database for storing predetermined real estate sales contract information. And a management unit.

According to the exemplary embodiment of the present invention, when the at least one or more pieces of information included in the real estate sales contract information are encrypted by a predetermined encryption algorithm, the receiving unit preferably decrypts the encrypted information.

According to the present invention, in the online real estate transaction apparatus on the network, the real estate sale contract information may include the real estate buyer electronic signature, and / or the real estate buyer electronic signature, and / or the real estate buyer electronic signature. A computer readable recording medium, characterized in that it is attached.

According to the invention, the recording medium provided in the on-line real estate transaction apparatus on the network is characterized in that for recording a program for executing the function of the device configuration unit.

In the present invention, the online real estate transaction apparatus on the network includes predetermined real estate seller identification information data (or real estate seller information data), predetermined real estate buyer identity information data (or real estate seller information data), and predetermined real estate property information data. -A variety of real estate display information data, etc. included in the real estate sales contract; and real estate sales information data including a real estate sales payment method, and predetermined real estate sales contract information data including at least one special contract information data. An output unit for outputting a predetermined electronic document (or web page) having a predetermined data input area; And an input unit for inputting real estate sales contract information data corresponding to the data input area into at least one data input area included in the outputted electronic document (or web page). And a transmission unit for transmitting the electronic document (or web page) to which the at least one real estate sales contract information data is input, to a real estate transaction server (or device) on a network.

According to an embodiment of the present invention, the transmission unit preferably transmits at least one real estate sale contract information data among the at least one real estate sale contract information data by a predetermined encryption algorithm.

According to an embodiment of the present invention, the online real estate transaction terminal device transmits an electronic document (or web page) in which the at least one real estate transaction contract information data is input to a real estate transaction server (or device) on a network. It is preferable to transmit the real estate seller, and / or the real estate buyer, and / or the real estate agent electronic signature.

According to the invention, the recording medium provided in the on-line real estate transaction apparatus on the network is characterized in that for recording a program for executing the function of the device configuration unit.

Hereinafter, with reference to the accompanying drawings and description will be described in detail the operating principle of the preferred embodiment of the present invention. However, the drawings and the following description shown below are for the preferred method among various methods for effectively explaining the features of the present invention, the present invention is not limited only to the drawings and description below. In addition, in the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted. In addition, terms to be described below are terms defined in consideration of functions in the present invention, which may vary according to a user's or operator's intention or custom. Therefore, the definition should be based on the contents throughout the present title.

In addition, preferred embodiments of the present invention to be carried out below are provided in each system functional configuration to efficiently describe the technical components constituting the present invention, or system functions that are commonly provided in the technical field to which the present invention belongs. The configuration will be omitted, and described mainly on the functional configuration to be additionally provided for the present invention. If those skilled in the art to which the present invention pertains, it will be able to easily understand the function of the components that are conventionally used among the omitted functional configuration not shown below, and also the configuration omitted as described above The relationship between the elements and the components added for the present invention will also be clearly understood.

In addition, according to the preferred embodiment of the present invention carried out below, the online real estate transaction apparatus on the network is called a server or a terminal according to each function and role in order to efficiently describe the technical components of the present invention. In the storage medium that stores the real estate sales contract information and / or seller authentication information and / or buyer authentication information is referred to as real estate sales management management D / B.

As a result, the technical spirit of the present invention is determined by the claims, and the following examples are one means for efficiently explaining the technical spirit of the present invention to those skilled in the art to which the present invention pertains. It is only.

1 is a view showing a preferred functional configuration of a real estate sales contract system according to an embodiment of the present invention.

More specifically, FIG. 1 is a system for relaying and managing a real estate sale contract between at least one real estate seller and a buyer at the server 100, wherein the server 100 communicates with a predetermined network 175 and / or communication. Connected to at least one seller terminal 200a and / or the buyer terminal 200b via means 175 and associated with a predetermined identification server 150 to identify the seller and / or the buyer. A preferred embodiment of the present invention is illustrated in the case of being connected to the real estate information server 155 providing the real estate information for sale. Those skilled in the art to which the present invention pertains, the server 100, the identification server 150 and the real estate information server 155 is provided in one server system in the method of FIG. It will be clearly understood that it may be composed of a plurality of systems interworked through the network of, and the technical concept of the present invention is not limited by the implementation method of FIG.

Referring to FIG. 1 according to a preferred embodiment of the present invention, the real estate sales contract system includes a seller terminal 200a used by at least one seller who sells real estate, and at least one buyer who purchases real estate owned by the seller. A buyer terminal 200b to be used, a public key infrastructure (PKI) certification authority 165 included in an electronic signature and encryption / decryption and / or an electronic envelope for the real estate sale contract, and at least one or more; A directory server 170 that stores and manages public key information for the seller and / or the buyer, an identification server 150 that provides an identity verification function for the seller and / or the buyer, and the subject (or seller) A real estate information server 155 that provides real estate information from the standpoint of the buyer, or the buyer from the buyer's perspective; A real estate registration server 160 that provides real estate registration information (or a target of sale from a seller, or a buyer of a buyer) and a server 100 that provides a real estate sales contract service in conjunction with the above components. Characterized in that made.

The seller terminal 200a and / or the buyer terminal 200b are wired terminals capable of connecting a communication channel for a real estate sales contract with the server 100 through a predetermined network 175 and / or communication means 175. And / or a wireless terminal, wherein the seller terminal 200a and the buyer terminal 200b are made up of different terminals as shown in FIG. 1, or a single unit such as the real estate transaction terminal 200c in FIG. It is possible to consist of a terminal.

According to an embodiment of the present invention, the wired terminal corresponding to the seller terminal 200a and / or the buyer terminal 200b includes at least one of a personal computer (PC) and / or a notebook. Preferably, the wireless terminal corresponding to the seller terminal 200a and / or the buyer terminal 200b may be a personal communication system (PCS) and / or a global system for mobile communications (GSM) terminal and / or a personal. Personal Digital Cellular (PDC) and / or Personal Handyphone System (PHS) terminals and / or Personal Digital Assistants (PDAs) and / or Smartphones and / or Telematics and And / or at least one wireless data communication terminal and / or a portable internet terminal. A preferred functional configuration of the seller terminal 200a and / or the buyer terminal 200b will be described in detail with reference to FIG.

Those skilled in the art to which the present invention pertains will clearly understand the technical features of the certification authority 165 and the directory server 170 of the public key infrastructure (PKI). Is omitted.

The identification server 150 confirms the identity of at least one or more sellers and at least one or more buyers who are parties to the real estate transaction in processing the real estate sale contract by the server 100. And / or the identity of the seller and / or the buyer based on identification information for the buyer (eg, ID / PW information for the seller and / or the buyer and / or personal information including name, social security number, address). Check.

According to the method of the present invention, the identification server 150 comprises at least one financial institution (bank / card company) server, the credit information company server having identification information for the seller and / or buyer. Preferably, the identification server 150 preferably performs identity verification through a predetermined certificate issued by the certification authority 165 in the identification process.

In addition, the identification server 150 is an online complaint server, electronic seal and / or real estate for sale electronic seal and / or trust registration for issuing electronic resident registration and / or electronic resident registration copies to the seller and / or buyer Preferably, the electronic seal server for issuing an electronic seal, the online complaint server and / or a web server interoperating with the electronic seal issuing server, the identification server 150 is the authentication authority in the identification process It is preferable to perform identity verification through a predetermined certificate issued at (165).

According to the embodiment of FIG. 1, the identification server 150 interworks with the server 100, wherein the seller terminal 200a and / or the buyer terminal 200b access the server 100. In the case that the member authentication is processed through the seller certificate and / or the buyer certificate based on the certification authority 165, the server 100 is the seller to the identification server 150 based on the member authentication result And / or request and process identification of the buyer.

Further, according to another embodiment of FIG. 1, the seller and / or the buyer through a predetermined ID / PW in the process of connecting the seller terminal 200a and / or the buyer terminal 200b to the server 100. It is preferable to authenticate a member for (or even authenticate the member through the seller certificate and / or buyer certificate based on the certification authority 165).

According to an implementation method other than FIG. 1 (for example, an implementation method as in FIG. 9C), the identification server 150 may be connected to the seller terminal 200a through a predetermined network 175 and / or a communication means 175. And / or connected with the buyer terminal 200b, the seller terminal 200a and / or the buyer terminal 200b directly connect to the identification server 150 and based on the certification authority 165, the seller certificate. And / or via the buyer certificate it is possible to process the identification of the seller and / or the buyer.

For example, if the identification server 150 is an online complaint server, the identification server 150 performs the procedure for issuing an electronic resident registration copy (primary) for the seller and / or the buyer. The identification of the seller and / or the buyer is processed through the seller certificate and / or the buyer certificate based on 165.

In addition, if the identification server 150 is an electronic seal server, the identification server 150 is in the process of issuing a predetermined electronic seal for the seller and / or the buyer in the certification authority 165 Based on the seller certificate and / or buyer certificate through the identification process for the seller and / or buyer.

Or, if the identification server 150 is a financial institution (bank / card company) server and / or credit information company server, the issuer issued by a predetermined certification authority 165 to verify the identity of the seller and / or buyer It is possible to verify the seller and / or the buyer's identity by performing a verification process through the seller's certificate and / or the buyer's certificate.

According to the exemplary embodiment of the present invention, the server 100 and the identification server 150 are provided in one server, or the server 100 and the identification server 150 are provided in different servers. All is possible.

According to an embodiment of the present invention, the identification server 150 includes a function of confirming whether the seller can perform legal acts such as selling the property by using the seller identification information provided from the seller terminal 200a. And / or a function of confirming whether the buyer can perform legal acts such as buying the real estate by using the buyer identification information provided from the buyer terminal 200b.

In addition, when the sale of the real estate is made through a predetermined agent (for example, the seller (or the owner of the real estate) is a limited payer and / or a prohibited person and / or a minor set by the civil law), the identification server 150 is the seller. Confirming that the party's attorney satisfies the legal terms and conditions for the seller to act on the seller, and / or the purchase of the property is made through a given agent (e.g., the buyer is a limited payer set by civil law and / or In the case of an indeterminant and / or minor), the identity verification server 150 checks whether the buyer's agent satisfies the legal conditions that can represent the legal act for the buyer.

The server 100 and / or the real estate information server 155, when the server 100 processes the real estate sales contract, the real estate information (or the object of sale from the seller's position, or the object of purchase from the buyer's position) the real estate information of the server 100 and / Or an online complaint server for providing the seller terminal 200a and / or the selling means terminal, including at least one of an electronic land ledger, an electronic building ledger, an electronic land price checker, and an electronic map. It is preferable to include a web server interoperating with the online complaint server.

According to the implementation method of FIG. 1, the real estate information server 155 interworks with the server 100. When the identity of the seller is confirmed in the server 100, the server identifies the seller identification result information. It is preferable to receive real estate information owned by the seller by providing the real estate information server 155 and provide the real estate information to the seller terminal 200a and / or the buyer terminal 200b.

For example, if the real estate information server 155 is the online civil complaint server and the real estate is land (forest), the seller-owned real estate information is the land (forest) among the land (forest) account books stored in the database of the online civil complaint server. It is preferable that the owner name and address include land (forest) land number information matching the seller name and address of the seller identification result information.

According to an implementation method other than FIG. 1, the real estate information server 155 is connected to the seller terminal 200a through a predetermined network 175 and / or communication means 175, in which case the real estate information server 155 may directly provide the seller's owned real estate information to the seller terminal 200a.

When the server 100 processes the real estate sale contract, the real estate registration server 160 transmits the real estate registration information to the server 100 and the sale target (or the sell target from the seller's position, or the buy target from the buyer's position). It is characterized in that provided to the seller terminal (200a) and / or the selling means terminal, it is preferable to include an online registration server for the real estate, a web server interoperating with the online registration server.

According to the method of the present invention, the real estate registration information provided from the real estate registration server 160 is the name and address of the owner of the real estate included in the "armor" among the registered copies stored in the database of the online registration server, the seller identity It is desirable to include "heading", "armor" and "ulgu" for the real estate matching the seller's name and address of the verification result information. In the registered copy, the "heading part" includes land, land and land and land when the real estate is land (forest), and the land, structure, use, and area when the real estate is a building. Includes matters relating to ownership of the property, and the term "eul" includes matters relating to rights other than ownership of the property.

Referring to FIG. 1, the server 100 includes a receiver 105 for receiving predetermined information from the seller terminal 200a and / or the buyer terminal 200b, and the seller terminal 200a and / or the buyer terminal. A transmission unit 115 for transmitting predetermined information to the user 200b, an identification information unit 110 for confirming the identity of the seller and / or the buyer in association with the identification server 150, and the real estate information A real estate information unit 120 which interoperates with a server 155 and / or a real estate registration server 160 to extract real estate information and / or real estate registration information about the seller's owned real estate, and the seller terminal through the receiving unit 105. An information analysis unit 125 for analyzing real estate sale contract information received from 200a and / or real estate purchase contract information received from the buyer terminal 200b, and the real estate sale contract information and / or real estate purchase contract definition And an information management unit 135 for managing the real estate sales management D / B 145 for storing at least one information related to the real estate sale contract. Preferably, the information management unit 135 further includes a storage unit 140 temporarily storing predetermined information in the process of managing the information related to the real estate sale contract.

The receiving unit 105 receives predetermined seller identification information (for example, seller's name and social security number, or seller's certificate password) from the seller terminal 200a, or receives real estate sale contract information. Receive predetermined buyer identification information (for example, buyer name and social security number, or buyer certificate password) from the buyer terminal 200b, or receive real estate purchase contract information.

According to an embodiment of the present invention, the receiving unit 105 may include predetermined seller identification information received from the seller terminal 200a and / or predetermined buyer identification information received from the buyer terminal 200b. It is preferable to provide the confirmation information unit 110 to process the identification of the seller and / or the buyer, the receiving unit 105 is the real estate sales contract information and / or the received from the seller terminal (200a) The real estate purchase contract information received from the purchaser terminal 200b is provided to the information analysis unit 125 and / or the authentication unit 130 to analyze the real estate purchase contract information and / or real estate sale contract information, or included in the information. It is desirable to verify the validity of information relating to real estate contracts.

According to the exemplary embodiment of the present invention, the receiving unit 105 receives the real estate sale contract information and / or real estate purchase contract information from the seller terminal 200a and / or the buyer terminal 200b. The information and / or real estate purchase contract information is preferably received by a predetermined encryption / decryption method, or received in an electronic envelope.

The transmission unit 115 transmits the identification result information confirmed by the identification information unit 110 to the seller terminal 200a and / or the buyer terminal 200b, and / or the real estate information unit 120 The seller-owned real estate information and / or real estate registration information extracted by the characterized in that for transmitting to the seller terminal (200a).

In addition, after the identification unit 110 confirms the identity of the buyer by the identification information unit 110, the transmission unit 115 is stored in the real estate contract information storage area of the real estate transaction management D / B 145 by the seller terminal 200a. Characterized in that the predetermined real estate contract processing information, including the real estate registration information and / or real estate sales information and / or seller information and / or special information from the stored real estate sales contract information is extracted and transmitted to the buyer terminal (200b) do. If according to another embodiment of the present invention, predetermined seller selling contract information is received from the seller terminal 200a from the predetermined seller terminal 200a and stored in the real estate contract information storage area of the real estate trading management D / B 145. When the predetermined real estate purchase contract information is first received from the buyer terminal 200b to the server 100 before being stored (for example, when the buyer terminal 200b manually inputs and transmits the predetermined real estate purchase contract information). ), The process of transmitting the real estate contract processing information from the transmission unit 115 to the buyer terminal 200b may be omitted.

According to an embodiment of the present invention, the seller 115 transmits the seller owned real estate information and / or real estate registration information to the seller terminal 200a and / or the buyer terminal 200b. The information and / or real estate registration information is preferably transmitted in a predetermined encryption / decryption manner, or transmitted in an electronic envelope.

According to an embodiment of the present invention, in transmitting predetermined real estate contract processing information to the buyer terminal 200b, the transmitting unit 115 transmits the seller identification result information to the real estate transaction management D / B 145. It is preferable to store in a predetermined storage unit 140 in connection with the real estate registration information extracted from the through, the buyer information or the real estate registration information contained in the real estate purchase contract information received from the buyer terminal 200b Validation of the validity quickly and easily (eg, validity of the buyer information or the real estate registration information may be secured in conjunction with the identification server 150 or the real estate information server 155. However, the server 100 In the storage unit 140 to secure the buyer identification result information in connection with the real estate registration information and then secured through it Argo has the advantage of convenience). In addition, according to an implementation method, the transmission unit 115 stores the seller identification result information in a predetermined storage unit 140 in association with the real estate transaction information extracted from the real estate transaction management D / B 145. It is also possible to quickly and easily authenticate the validity of the real estate purchase information included in the real estate purchase contract information.

The identification information unit 110 confirms the identity of the seller by interworking with the identification server 150 based on predetermined seller identification information received from the seller terminal 200a through the receiving unit 105. Or, and / or receive identity verification result information for the seller from the identification server 150, and / or received from the buyer terminal 200b via the receiver 105. Confirm the identity of the buyer by interworking with the identification server 150 based on the identification information of the buyer, and / or receive identification information of the buyer from the identification server 150. It is done.

According to the exemplary embodiment of the present invention, the identification information unit 110 may include the seller identification information and / or the buyer identification information received from the seller terminal 200a and / or the buyer terminal 200b. 150 to request identity verification, and after performing a predetermined identity verification procedure from the identity verification server 150 receives a predetermined identity verification result information (for example, approval / rejection information for identity verification), Predetermined identification result information corresponding to the seller identification information and / or the buyer identification information from the identification server 150 (e.g., approval / denial information for identity verification, and the seller and / or when identity verification approval); Or information including at least one of a buyer's name, social security number, address, and family information.

The real estate information unit 120 interoperates with the real estate information server 155 and / or the real estate registration server 160 based on the seller identification result information of the identification information unit 110 to determine a predetermined price for the seller owned real estate. And real estate information and / or real estate registration information, wherein the real estate information and / or real estate registration information is provided to the information analysis unit 125 to undergo a predetermined information analysis process, and / or the information. It is preferably provided to the management unit 135 is stored and managed in the real estate sales management D / B (145).

According to an embodiment of the present invention, the real estate information unit 120 may provide the seller identification result information (or, if necessary, the seller identification information) provided from the identification information unit 110 to the real estate information server 155 and / Or provided to the real estate registration server 160 to request the seller-owned real estate information and / or real estate registration information, extract (or receive) the real estate information owned by the seller from the real estate information server 155, Alternatively, it is preferable to extract (or receive) real estate registration information owned by the seller from the real estate registration server 160.

According to an embodiment of the present invention, the real estate information unit 120 stores the real estate registration information extracted from the real estate registration server 160 in a predetermined storage unit 140 in association with the seller identification result information. By doing so, the validity of the seller information or the real estate registration information included in the real estate selling contract information received from the seller terminal 200a can be quickly and easily authenticated (for example, the identity of the seller information or the real estate registration information is determined as the identity). It may be secured in connection with the confirmation server 150 or the real estate registration server 160. However, the server 100 stores the seller identification result information in association with the real estate registration information in the storage unit 140. After that, it is quick and convenient to obtain it.

The information analyzing unit 125 confirms the electronic signature of the seller with respect to predetermined real estate selling contract information received from the seller terminal 200a through the receiving unit 105, and at least one or more from the real estate selling contract information. And the electronic signature of the buyer with respect to predetermined real estate purchase contract information received from the purchaser terminal 200b through the receiving unit 105, and / or read the real estate selling related information. The at least one property purchase information is read from the property purchase contract information.

According to the embodiment of the present invention, the information analyzer 125 receives the seller's real estate contract information from the seller terminal 200a through the receiver 105, and uses the seller's public key to contact the seller. By decrypting the real estate sale contract information digitally signed by the seller, securing confidentiality, authentication, integrity, and nonrepudiation of the real estate sale contract information digitally signed by the seller desirable.

According to the method of the present invention, the real estate for the real estate sales contract may be owned by at least one or more plural, in this case, the server 100 to sell a plurality of real estate from a plurality of sellers to sell the real estate It is desirable to receive the information and confirm the electronic signature. The information analysis unit 125 reads the real estate registration information and checks whether the real estate is owned by a single seller or jointly owned by a plurality of sellers. .

In addition, when a plurality of sellers share the real estate as a result of the check, the information analyzer 125 matches the real estate registration information included in the received real estate sale contract information in association with the information management unit 135. New storage for the real estate sales contract in the real estate sales management D / B 145 by searching whether the predetermined real estate sales contract information including the real estate registration information is stored in the real estate sales management D / B (145) It is preferable to determine whether to allocate an area and store the received real estate sale contract information, or to store the received real estate sale contract information in a previously allocated storage area.

For example, when the real estate for the real estate sales contract is jointly owned by three people, in the process of receiving predetermined real estate selling contract information from a predetermined seller terminal 200a, the real estate selling contract information is first responded to the real estate. If it is received, if the new storage area is allocated to the real estate sales management D / B (145) for the real estate sales contract, the real estate sale contract information is received after the second corresponding to the real estate (for example, second Or a third time), the real estate sales management D / B 145 may be allocated a predetermined storage area for the real estate sales contract.

According to the method of the present invention, the information analyzer 125 receives the predetermined real estate purchase contract information from the purchaser terminal 200b through the receiving unit 105 to the buyer by using the buyer public key. It is desirable to ensure confidentiality, authentication, integrity and non-repudiation of the real estate sale contract information digitally signed by the buyer by decrypting the real estate purchase contract information electronically signed by the buyer.

According to the implementation method of the present invention, the information analysis unit 125 works in conjunction with the information management unit 135 real estate sales contract including real estate registration information matching the real estate registration information included in the received real estate purchase contract information By searching whether the information is stored in the real estate sales management D / B (145), the real estate sales management D / B (145) to check the real estate contract information storage area to store the buyer information included in the real estate purchase contract information It is preferable.

The authentication unit 130 confirms the validity of the real estate sale contract information received from the seller terminal 200a, and / or confirms the validity of the real estate purchase contract information received from the buyer terminal 200b. Characterized in that.

According to an embodiment of the present invention, when the real estate for the real estate sale contract is owned by one seller, or the real estate is jointly owned by a plurality of sellers, but the real estate sale contract information is first received from the seller terminal 200a. The authentication unit 130 compares the seller information included in the real estate sale contract information with the seller identification result information stored in the storage unit 140, thereby authenticating the validity of the seller information. According to the implementation method, the authentication unit 130 may authenticate the validity of the seller information included in the real estate sale contract information through the identification server 150 in conjunction with the identification information information 110. Do.

In addition, when the real estate for the real estate sale contract is owned by one seller, or the real estate is jointly owned by a plurality of sellers, but the real estate sale contract information is first received from the seller terminal (200a), the authentication The unit 130 compares the real estate registration information included in the real estate sale contract information and the real estate registration information stored in the storage unit 140, thereby validating the validity of the real estate registration information to be sold. According to the implementation method, the authentication unit 130 may authenticate the validity of the real estate registration information included in the real estate sale contract information through the real estate registration server 160 in conjunction with the real estate information unit 120. Do.

According to an exemplary embodiment of the present invention, when the real estate for the real estate sale contract is jointly owned by a plurality of sellers, and the real estate sale contract information received from the seller terminal 200a is received after the second time, the authentication unit The storage area 130 stores the real estate sales contract information for the real estate from the real estate sales management D / B 145 through real estate registration information included in the real estate sales contract information in cooperation with the information management unit 135. Verifying the validity of the real estate selling information included in the real estate selling contract information and matching the real estate selling information of the real estate selling contract information, the validity of the selling target real estate selling information included in the real estate selling contract information It is desirable to authenticate.

According to the exemplary embodiment of the present invention, the real estate sales management D / B 145 receives the real estate sale contract received from at least one seller terminal 200a before the real estate purchase contract information is received from the buyer terminal 200b. And stores predetermined real estate sales contract information read from the information, and the authentication unit 130 compares the buyer information included in the real estate purchase contract information and the buyer identification result information stored in the storage unit 140, It is preferable to authenticate the validity of the buyer information, according to another embodiment, the authentication unit 130 in conjunction with the identification information unit 110 through the identification server 150 through the real estate purchase contract The validity of the seller information included in the information may be authenticated.

In addition, the authentication unit 130 by comparing the real estate registration information included in the real estate purchase contract information and the real estate registration information stored in the storage unit 140, it is preferable to authenticate the validity of the sale target real estate registration information. According to another embodiment, the authentication unit 130 authenticates the validity of the real estate registration information included in the real estate purchase contract information through the real estate registration server 160 in cooperation with the real estate information unit 120. You may.

According to the implementation method of the present invention, the authentication unit 130 is interlocked with the information management unit 135 through the real estate registration information included in the real estate purchase contract information from the real estate sales management D / B (145) Checking the storage area for storing the real estate sale contract information, and authenticating whether the real estate purchase information included in the real estate purchase contract information matches the real estate sales information of the real estate sales contract information, It is preferable to authenticate the validity of the included real estate for sale information.

The information manager 135 stores and manages at least one seller's authentication information, buyer's authentication information, and real estate sales contract information related to the real estate sales contract in a predetermined real estate sales management D / B 145.

According to the exemplary embodiment of the present invention, when the information management unit 135 receives the predetermined real estate sale contract information and / or real estate purchase contract information from the predetermined seller terminal 200a and / or the buyer terminal 200b, It is preferable to allocate a real estate contract information storage area for storing predetermined real estate sales contract information to the real estate sales management D / B 145, and / or at least one or more stores the electronic signed real estate sales contract information. It is preferable to allocate a seller authentication information storage area or at least one buyer authentication information storage area for storing the electronically signed real estate purchase contract information.

According to a preferred embodiment of the present invention, the real estate contract information storage area allocated to the real estate sale management D / B 145 is preferably allocated one storage area for one real estate sale, and / or the Preferably, the seller authentication information storage area is allocated as many as the number of sellers having ownership of the property to be sold if the property to be sold is owned by at least one or more plural buyers, and / or the buyer authentication information storage area is selected from the seller. When at least one or more plural buyers jointly purchase the target real estate, the number of buyers who purchase the target real estate is preferably allocated.

After the real estate contract information storage area is allocated to the real estate sales management D / B 145 as described above, the information manager 135 receives the first real estate selling contract information from the predetermined seller terminal 200a. It is preferable to read valid seller information and real estate registration information from the real estate sale contract information and store it in the real estate contract information storage area, and / or the first received real estate sale information is regarded as predetermined real estate sales information. Preferably, the property information is stored in the real estate contract information storage area, and / or when the buyer information is determined and included in the real estate sale contract information, the buyer information is regarded as a buyer to buy the real estate and the real estate contract information is stored. It is desirable to store in the area, and / or a predetermined stipulation in the property sale contract information If included, it is preferable to consider the special contract information to the rider information for the real estate sale to the real estate contract information stored in the storage area.

In addition, after predetermined information is pre-stored in the real estate contract information storage area of the real estate sales management management D / B 145, predetermined real estate sales contract information is received from a predetermined seller terminal 200a (for example, a plurality of real estates are received. If the seller jointly owned), and / or if the predetermined real estate purchase contract information is received from the predetermined buyer terminal (200b), the information management unit 135 from the real estate sale contract information and / or real estate purchase contract information Access to the real estate contract information storage area of the real estate sales management D / B 145 based on predetermined real estate registration information, and the real estate purchase information of the real estate sale contract information and / or the real estate purchase information of the real estate purchase contract information; The number may be compared by comparing real estate sale information of the real estate sale contract information (or further comparing special information according to an implementation method). It is preferable to manage the contract establishment of the new real estate sale contract information.

According to the exemplary embodiment of the present invention, the information manager 135 receives the predetermined selling property information, which is electronically signed by the selling seller, from the selling seller terminal 200a. Is regarded as the seller authentication information and stored in the seller authentication information storage area of the real estate sales management D / B 145, whereby a dispute about the real estate to be sold may occur until the real estate sale contract information is changed. In such a case, the ground for resolving the dispute is provided through the real estate sale contract information digitally signed by the seller.

In addition, the information manager 135 regards the electronically signed real estate purchase contract information as the buyer authentication information when the predetermined real estate purchase contract information received by the buyer is received from the predetermined buyer terminal 200b. It is preferable to store in the buyer authentication information storage area of the real estate sale management D / B (145), if there is a dispute about the real estate to be sold until the real estate purchase contract information is changed, by the buyer Establish grounds for resolving the dispute through the signed real estate sale contract information.

The real estate sales management D / B (145) comprises a real estate contract information storage area for storing the real estate sales contract information per real estate sales contract in order to manage the real estate sales contract, according to the implementation method The real estate sales management D / B 145 may further store predetermined real estate sale contract information received from the seller terminal 200a and / or real estate purchase contract information received from the buyer terminal 200b.

According to an embodiment of the present invention, the real estate sales management D / B 145 may use the real estate selling contract information as the seller authentication information when the electronically sold real estate selling contract information is received from at least one seller terminal 200a. It is preferable to include a seller authentication information storage area for storing, and when the electronically signed real estate purchase contract information is received from at least one buyer terminal 200b, the buyer authentication to store the real estate purchase contract information as the buyer authentication information It is preferable to include an information storage area.

In addition, the real estate trading management D / B 145 is a predetermined signature that is electronically signed from the real estate transaction terminal 200c as shown in Figure 21, when there is an intermediary for brokering the real estate sales according to the method of the present invention It is preferable to further comprise a broker authentication information storage area for storing the real estate sales contract information as the broker authentication information.

In addition, the real estate sales management D / B 145 and the information transmitted and received to at least one or more of the seller terminal (200a) and / or the buyer terminal (200b) and / or real estate transaction terminal (200c) for more efficient management, It is preferable to further include a log information storage area (not shown) for recording a log for the information stored and managed in the real estate sales management D / B (145).

In addition, the real estate sales management D / B (145) preferably further comprises a trust registration information storage area for storing a predetermined real estate trust registration information in order to provide a more expanded real estate sales service, Trust registration information is preferably received and stored from the seller terminal (200a) and / or real estate transaction terminal (200c).

In addition, the real estate sales management D / B (145) preferably comprises a security insurance-related information storage area for storing a predetermined real estate security insurance information in order to provide a more extended real estate sales service, the security insurance The related information is preferably received and stored from the buyer terminal 200b and / or the real estate transaction terminal 200c and / or the real estate transaction related insurance company server (not shown).

According to the exemplary embodiment of the present invention, the real estate sales management D / B 145 may further include at least one storage area for providing additional services related to real estate sales according to the intention of those skilled in the art. The storage area can be made through a separate database.

2 is a view showing a preferred functional configuration of a real estate sales contract terminal according to an embodiment of the present invention.

More specifically, FIG. 2 shows a seller terminal 200a used by at least one or more sellers, and / or a buyer terminal 200b used by at least one or more buyers, and / or a real estate transaction used by the seller and the buyer at the same time or by a given intermediary. As a preferred functional configuration for a wired terminal and / or a wireless terminal comprising a terminal (200c), those skilled in the art to which the present invention pertains, the wired terminal and / or wireless terminal with reference to Figure 2 The seller terminal 200a and / or the buyer terminal 200b and / or the real estate transaction terminal 200c including at least one or more may be implemented. However, in FIG. 2, components that may harm the gist of the present invention in each terminal will be omitted for convenience.

Referring to FIG. 2, the seller terminal 200a and / or the buyer terminal 200b and / or the real estate transaction terminal 200c are hardware including a CPU (Central Process Unit) / MPU (Micro Process Unit). And a bus including an execution memory, a bus for inputting and outputting a predetermined program routine and / or program data for providing a terminal-specific function from a predetermined memory element, and a predetermined electronic circuit provided therefor (or Integrated circuits), program routines that are loaded into the execution memory from a predetermined memory device and / or chipset by software and are computed through the processor to perform a specific function. Generic term of the program data (hence, in the present invention, a predetermined program lure recorded on the recording medium of the terminal for real estate sales contract) Is shown in the control unit 205 for convenience.) And a screen for outputting predetermined information and / or an interface screen to the terminal screen in conjunction with the control unit 205. An output unit 210, a key input unit 215 for receiving predetermined information from the terminal user, and the control unit 205 for storing predetermined information or data required for controlling the overall functions and operations of the terminal. And a communication unit 225 for connecting a communication channel between the terminal and a server on the network through a memory unit 230 and a predetermined network 175 and / or communication means 175. If the user's certificate is provided in the IC card 220-1 and / or IC chip 220-2, predetermined certificate related information from the IC card 220-1 and / or IC chip 220-2. IC reader unit 220 to read more It is made by also being preferred. In addition, the functional configuration of the terminal according to the features of the seller terminal (200a) and / or the buyer terminal (200b) and / or real estate transaction terminal (200c) and / or the intention of those skilled in the art It may be further included.

The screen output unit 210 is a device driver for screen output, and predetermined information is provided to the controller 205 (for example, a screen output device (for example, CRT (Cathode Ray Tube) / LCD (Liquid Crystal Display)). Or key data generated through the key input unit 215 by using a program routine for outputting data, various information, signals, and / or contents extracted and / or generated in the course of performing a predetermined function included in the terminal. For example, the user may output text content, image content, and / or multimedia content to a predetermined screen output device (eg, an LCD panel), and the screen output unit 210 may output a screen output device. It is preferable to perform a function of outputting predetermined information and / or an interface screen necessary in the real estate sales contract process in conjunction with the.

The key input unit 215 is provided with at least one key button including a predetermined number key and / or a character key and / or a function key. Detects information (or signal) input from a key input device including at least one of a keypad and / or a keyboard and / or a mouse, and specifies the terminal controlled by the controller 205. When predetermined information (or signal) is input from a predetermined key button provided in the keypad and / or keyboard and / or mouse in an input mode and / or an operation mode, a key event corresponding to the input information (or signal) is input. And generating the generated key event to the controller 205, wherein the key input unit 215 is linked to the key input device to provide predetermined information necessary for a real estate sales contract process. To carry out a receiving function is preferred.

The memory unit 230 registers information related to a predetermined program routine (or code) and / or program data (eg, a program routine (or code)) for controlling the overall operation of the terminal. Or a general term for a memory device for storing data; read only memory (ROM) corresponding to read-only memory, flash memory (FM), non-volatile read / write, electrically erasable and programmable read (EPPROM). Only Memory) and HDD (Hard Disk Drive).

According to an embodiment of the present invention, the memory unit 230 (or the external memory unit 230 including a compact disk (CD) / floppy disk drive (FDD)) is the real estate in the process of providing a real estate sales contract. Electronically sign the sale contract information and / or the real estate purchase contract information and / or the real estate sales contract information, and / or encrypt the real estate sales contract information and / or the real estate purchase contract information and / or the real estate sales contract information, or It is preferable to store a predetermined certificate required for the transfer to the server 100.

According to another exemplary embodiment of the present invention, the certificate is an IC card 220 issued by a predetermined IC card 220-1 / IC chip 220-2 to the seller and / or the buyer and / or the intermediary. -1) can be stored in the memory of the IC chip 220-2, and the certificate of the seller and / or buyer and / or intermediary from the IC card (220-1) / IC chip (220-2) In order to read the terminal, a predetermined IC reader 220 is preferably provided.

According to another exemplary embodiment of the present invention, the seller terminal 200a and / or the buyer terminal 200b and / or the real estate transaction terminal 200c are wired terminals, and the terminal includes an IC reader unit 220. (Or the IC reader unit 220 is provided but the certificate of the seller and / or the buyer and / or the intermediary is not provided in the IC card 220-1 / IC chip 220-2), the memory unit Although the certificate of the seller and / or the buyer and / or the intermediary is not stored in the 230, the seller is mounted on or detached from the wireless terminal of the seller and / or the buyer and / or the intermediary. And / or the IC chip 220-2 mounted or detached from the wireless terminal through a predetermined network 175 and / or communication means 175 when a certificate of a buyer and / or an intermediary is provided. A single certificate (or real estate) It can be received as a certificate) and stored in the memory unit 230 of the terminal.

In addition, the seller terminal 200a and / or the buyer terminal 200b and / or the real estate transaction terminal 200c are wired terminals, and the terminal does not include the IC reader unit 220 (or the IC reader unit 220). ) But the certificate of the seller and / or the buyer and / or the intermediary is not provided on the IC card 220-1 / IC chip 220-2), and the seller and / or the memory unit 230. The certificate of the buyer and / or the intermediary has not been stored, but the terminal of the seller and / or the buyer and / or the intermediary of the wireless terminal (for example, the IC chip 220-2 equipped with the short-range communication function and the certificate is mounted or dismounted). When a predetermined IC reader unit 225 capable of communication connection with an attached wireless terminal) is provided, the terminal is mounted on or detached from the wireless terminal through the IC reader unit 225. A single certificate (or real estate transaction) It can be received as a certificate and stored in the memory unit 230 of the terminal. Further, the terminal transmits predetermined real estate sale contract information and / or real estate purchase contract information and / or real estate sales contract information to the wireless terminal through the IC reader unit 225, and is mounted or detached from the wireless terminal. It is possible to digitally sign through the certificate provided in the IC chip 220-2, and to receive it back to the terminal through the short-range communication.

According to another embodiment of the present invention, the seller and / or the buyer and / or the intermediary, before the real estate transaction is commenced, the predetermined certificate (e.g., one-time (or real estate transaction) for the real estate transaction from a predetermined certification authority 165. Can be issued and stored in a predetermined memory device.

Referring to FIG. 2, the recording medium provided in the terminal includes an information receiver 260 for receiving predetermined information for real estate sales from a server (or device) on the network through the communication unit 225, and the communication unit ( An information transmitter 265 for transmitting predetermined information for real estate sale to a server (or device) on the network through 225, and predetermined information for real estate sale from a predetermined seller and / or buyer and / or an intermediary. The information input unit 245 for receiving the information, the information output unit 250 for outputting predetermined information for the sale of real estate to a predetermined seller and / or buyer and / or intermediary, and the input through the information input unit 245 Information for generating predetermined real estate sale contract information and / or real estate purchase contract and / or real estate sales contract information using the information and / or the information received through the information receiving unit 260. From a predetermined medium (e.g., memory unit 230, IC card 220-1 / IC chip 220-2) that stores the voice part 255 and the certificate of the seller and / or the buyer and / or the intermediary. A program including an extracting unit 270 for extracting the certificate is recorded, and the information input unit 245 and the key input unit 215 interlock with each other, and / or the information output unit 250. And a program further comprising a user interface 240 interworking with the screen output unit 210.

According to an exemplary embodiment of the present invention, the user interface unit 240 includes a browser program provided in the terminal (for example, if the terminal is a wired terminal, Microsoft Internet Explorer (Internet Explorer), or if the terminal is a wireless terminal). In the case of a WAP browser, the information receiving unit 260 and / or the information transmitting unit 265 and / or the information input unit 245 and / or the information output unit 250 and / or the information generating unit 255 are used. And / or the extractor 270 is preferably provided in the form of a program and / or an applet program and / or a script that are plugged into the browser program. The method of transmitting and receiving information between the server and the server is called a "web method."

In addition, in receiving predetermined information and / or an interface screen from the server 100 to the terminal through the web method as described above, a predetermined web document (for example, HTML (Hyper-Text Markup Language) / XML (eXtensible) Documents including Markup Language) and the like (e.g., real estate information, real estate contract processing information, etc.) that are automatically input to the web document, such that there is no security problem. The method of inputting in advance to the terminal and outputting the same through the browser program is referred to as a "server side web method" for convenience. In addition, the server 100 generates a web document according to a conventional method and transmits it to the terminal, and the automatic input item is transmitted to the terminal in an encryption / decryption and / or electronic envelope, and then the terminal As described above, a method of inserting the received information contained in the encryption / decryption and / or the electronic envelope into the automatic input item of the web document and outputting it through the browser program is referred to as a "hybrid web method" for convenience. In addition, the information output unit 250 of the terminal includes a web document library for real estate sales, and receives the automatic entry from the server 100 by encrypting / decrypting and / or in an electronic envelope, and then receiving the received The method of including the collected information in the web document library and outputting the same through the browser program is called a "client side web method" for convenience.

According to another exemplary embodiment of the present invention, the user interface 240 and / or the information receiving unit 260 and / or the information transmitting unit 265 and / or the information input unit 245 and / or the information output unit 250 And / or the information generating unit 255 and / or the extracting unit 270 may be the server 100 and / or the certification authority 165 and / or the directory server 170 and / or the identification server 150 and / Or Real estate information server 155 and / or real estate registration server 160 is provided in the form of a dedicated real estate transaction program to provide a real estate sales service by connecting a predetermined communication channel, the following terminal for convenience The method of transmitting and receiving information between the server and the server is called a "dedicated program method".

In addition, when receiving predetermined information (or data) from the server 100 through the dedicated program method, the information (or data) by the electronic document and / or those skilled in the art that conforms to the EDI (Electronic Data Interchange) standard A method of receiving in the form of an electronic document conforming to a defined predetermined electronic document standard and outputting it to the screen through the dedicated program is called "electronic document reception based dedicated program method" for convenience, and the information (or data) is prescribed. A method of receiving in the form of a data block and outputting the screen to the screen through the dedicated program is called a "data receiving based dedicated program method" for convenience.

The information receiving unit 260 may communicate with the server 100 and / or the server-side web method and / or the hybrid web method and / or the client-side web method and / or the dedicated program method through the communication unit 225. Predetermined information for real estate sale from the certification authority 165 and / or directory server 170 and / or identification server 150 and / or real estate information server 155 and / or real estate registration server 160 Characterized in that it receives.

According to the exemplary embodiment of the present invention, the information receiving unit 260 preferably receives identification results of the seller and / or the buyer from the server 100 and / or the identification server 150. And / or the seller-owned real estate information and / or real estate registration information from the server 100 and / or the real estate information server 155 and / or the real estate registration server 160, and / or the server ( It is preferable to receive predetermined real estate contract processing information from 100, and to receive a predetermined public key for encryption / decryption and / or electronic envelope from the certification authority 165 (or directory server 170). Do. As shown in FIG. 21, when the terminal performs the function of the real estate transaction terminal 200c, the information receiver 260 preferably receives the intermediary information from the server 100 and / or the intermediary information server 2100. Do.

The information output unit 250 uses the server-side web method and / or the hybrid web method and / or the client-side web method and / or the electronic document reception-based dedicated program method and / or the data reception-based dedicated through the information receiver 260. The information and / or interface screen received in at least one of the program methods is output to the screen output unit 210 through the user interface 240.

The information transmitting unit 265 uses the encryption / decryption and / or electronic envelope through the communication unit 225 to identify the server 100 and / or the identification server 150 and / or the real estate information server 155. And / or transmit identification information to the real estate registration server 160, and / or transmit real estate sale contract information and / or real estate purchase contract information and / or real estate sales contract information to the server 100. do.

The information input unit 245 is based on a predetermined interface screen output to the screen output unit 210 through the user interface unit 240, the seller information from the seller through the key input unit 215 and / Or receive certain real estate sale related information, including real estate registration information and / or real estate sale information and / or buyer information and / or special information, and / or buyer information and / or real estate property information and / or real estate from the buyer. Characterized in that the purchase information and / or seller information and / or predetermined information including the special information is received, and / or from the broker is characterized in that the predetermined broker information for real estate brokerage.

The information generator 255 is dedicated to a server-side web method and / or a hybrid web method and / or a client-side web method and / or an electronic document reception based program method and / or a data reception base via the information receiver 260. Generate predetermined real estate sale contract information based on information received in at least one of program methods and information related to selling the property input from the seller through the information input unit 245, and / or the information input unit ( Generate predetermined real estate purchase contract information based on real estate purchase related information input from the buyer through 245), and / or based on real estate brokerage related information input from the broker through the information input unit 245. Characterized in that for generating real estate sales contract information.

The extraction unit 270 is a predetermined medium (eg, the memory unit 230, the IC card 220-1 / IC chip 220-2) storing the certificate of the seller and / or the buyer and / or the intermediary. And the private key of the seller and / or the buyer and / or the intermediary are read from the information generator, and the information generator 255 electronically signs the real estate sale contract information through the read private key of the seller, And / or electronically sign the real estate purchase contract information through the read buyer's private key, and / or electronically sign the real estate sales contract information through the read private broker's private key.

3 is a diagram illustrating a certificate profile for an encryption procedure of a real estate transaction system according to an embodiment of the present invention.

In more detail, Figure 3 is based on the standard of IETF RFC 2459 in the preferred public certificate profile for encrypting (e.g., electronic signature and / or electronic envelope) the real estate for sale information according to the public key infrastructure in the real estate for sale system. It is about.

Referring to FIG. 3, the certificate profile includes a version field containing version information of the certificate, and a serial number including a unique positive integer value for the predetermined certification authority 165 for issuing the certificate to identify the certificate. Field, a signature algorithm field including an object identifier (OID) for the signature algorithm used by the certificate authority 165 to generate the certificate, and a name of the certificate authority 165 that issued the certificate. Distinguished Name), an validity field including a validity period of the certificate (e.g., certificate issuance date and certificate revocation date and time), an owner field for representing the name of the owner of the certificate as a DN, and Contains owner public key information including an algorithm identifier (OID and related parameters) for the certificate owner's public key and the owner public key value. Including the owner's public key information field which is characterized in that formed.

According to an embodiment of the present invention, the algorithm includes an encryption / decryption service, a signature / verification service including data integrity, a key exchange (key transfer) service, and a secure pseudo random number RSA (Rivest, Shamir, Adleman). Algorithms, and / or Digital Signature Standards (DSS) of the Federal Information Processing Standards (FIPS), which are established by the National Institute of Standards and Labor (NIST) under the Department of Commerce. Digital Signature Algorithm (DSA), and / or DH (Diffie, Hellman) algorithm, which is defined based on the logarithm on the finite field and is suitable for the key exchange (key agreement) protocol, and / or the equation for the elliptic curve on the finite field At least one elliptic curve DSA (ECDSA) algorithm and / or elliptic curve DH (ECDH) algorithm defined by a set of groups defined by It becomes, it is preferable that the private key is generated for the algorithm and the associated parameter and the owner based on the owner's public key value.

In addition, the certificate profile further includes an issuer unique identifier field for identifying a different issuer for a single DN, and an owner unique identifier field for identifying a different owner for a single DN. It is preferable to comprise.

In addition, the certificate profile is public key identification information (e.g., information using the public key information or using the certificate authority 165 name and certificate serial number) of the certificate of the certificate authority 165 that issued the certificate. An issuer public key identifier field comprising an owner, an owner public key identifier field including public key identification information authenticated by the certification authority 165, and a purpose of using the public key (for example, for digital signature, nonrepudiation, and key management). Key, the purpose of use of the key, the field of use of the key, and the password of the key, etc. A period field, a certificate policy field specifying the issuance policy of the certificate, and an authentication service of the other party when mutual authentication is performed between the authentication service areas. A certificate policy mapping field specifying whether the certificate policy is accepted, an owner alternative name field indicating an additional name of the owner (or a unique identification information used in an authentication service area), and an additional name of the issuer ( Or an issuer alternative name field for specifying unique identification information used in an authentication service area, an owner directory information field indicating additional information about the owner, and including a corresponding directory entry, and an illegal certification authority of the user. It is used to limit the scope of the names used in the owner field and the owner alternative name extension field, and not in the user certificate. Does not have a name limit field, and the certificate policy check request and An extension key specifying a policy restriction field for specifying information on prohibition of certificate policy mapping (including only the certificate of the certification authority 165), and a purpose for using a public key other than that indicated in the key usage extension field. A standard extension that includes a Certificate Revocation and Revocation List Distribution Points field that includes a Purpose of Use field and location information from which certificate revocation and revocation lists can be obtained when using the Certificate Revocation and Revocation Lists as a way to check the status information of the certificate. A field area, an issuer information access field used to obtain information on the certification authority 165 that issued the certificate, and information on the agent if there is an agent who is authorized by the certificate owner. An extension field including an extension field area including an agent field specified. It is possible.

According to the embodiment of the present invention, the fields are preferably digitally signed through the private key of the certification authority 165, thereby ensuring the validity of the certification authority 165 that issued the certificate.

4 is a diagram illustrating a real estate sale contract information structure according to an embodiment of the present invention.

In more detail, Fig. 4 illustrates a preferred structure of real estate sale contract information using seller information, real estate registration information, and real estate sale information as basic fields, and buyer information and seller special information as extended fields. The information may be in the form of a predetermined data block or in the form of an electronic document.

In FIG. 4, the location of each information included in the real estate sale contract information may be changed according to the intention of the person skilled in the art, and the present invention is not limited thereto. In addition, the basic field of the real estate selling contract information in this Figure 4 includes the seller information basically, the real estate registration information and / or real estate selling information may be moved to the extended field according to the intention of the skilled person, or the buyer information And / or special information may move to the basic field.

5 is a diagram illustrating a seller information structure of real estate sale contract information according to an exemplary embodiment of the present invention.

In more detail, Figure 5 shows the seller's name, the seller's resident registration number, the seller's address, the seller's contact information (telephone / mobile phone), and the ownership transfer amount transfer account information as the basic fields, and the seller sells the property to prove ownership of the property to be sold. The preferred structure of the seller's information using the agent's rights authentication information as an extended field when the title authentication information and / or the sale of the real estate is made through a predetermined agent.

According to the implementation method of the present invention, the real estate ownership authentication information preferably comprises registered copy information of the property for sale provided from the real estate registration server 160, the agent rights authentication information is the identity It is preferable to include the agent identification information provided from the verification server 150.

Those skilled in the art to which the present invention pertains may change the basic field and extended field according to the intention of those skilled in the art, or may add new information reflecting the intention of those skilled in the art. For example, the ownership transfer deposit account information in the basic field may be changed to another according to various ownership transfer payment forms (for example, when real estate ownership transfer is paid through a bond), and also moved to an extended field. It is okay. In addition, the real estate ownership authentication information of the extended field may move from the extended field to the basic field that must be included in the seller information in order to enhance the establishment, stability and reliability of the real estate selling contract.

6 is a view showing the structure of the real estate registration information for sale of real estate sale contract information according to an embodiment of the present invention.

More specifically, (a) of FIG. 6 refers to the structure of the real estate property for sale to sell land (forest), and (b) of FIG. 6 refers to the structure of the property to be sold for sale of the building. , (C) of FIG. 6 refers to the structure of the property to be sold for sale to simultaneously sell land (forest) and buildings.

(A) of FIG. 6 refers to the structure of the property to be sold for sale, wherein predetermined real estate identification information, real estate location information, and land information are used as basic fields, and the land owner identification information is an extended field. B) refers to the structure of the property to be sold for sale, wherein predetermined real estate identification information, real estate location information, and building information are used as basic fields, and the building owner identification information is used as an extended field. The real estate identification information, real estate location information, land information, and building information are used as basic fields, and the land owner identification information (e.g., registered copy information of the land) and / or building owner identification information (e.g., registered copy information of the building) is used. This is about the structure of the property information for sale to be extended.

In FIG. 6A, 6B, and 6C, real estate identification information of the property to be sold is determined by the seller terminal 200a and the server 100 according to the characteristics of the real estate. In order to intuitively identify the property to be sold, the property to be sold is classified according to whether it is a land (forest) or a building or a land (forest) and a building.

In addition, when the real estate to be sold is land (forest), it is preferable to classify the land in detail according to the land category and / or land owner and / or bonds for the land according to the intention of the person skilled in the art. In the case where the real estate is a building, it is preferable to classify the property in detail according to the structure and / or use of the building and / or the owner of the building and / or a bond for the building. Of course, when the real estate to be sold includes land (forest) and buildings, it is possible to classify in more detail according to the classification criteria.

According to the method of the present invention, the real estate identification information is preferably matched to define the real estate for sale information in FIG. For example, if the real estate to be sold is an apartment (= building), and the seller has purchased (or sold) the apartment by loan, the property sale information will include deduction information for inheriting the loan, but the seller If there is no loan for the apartment, the real estate sale information will not need to include deduction information for inheriting the loan. Also, for example, if the real estate to be sold is a house (= building), and the seller has chartered the house to a third party, the property sale information will include deduction information for inheriting the rent, but the house If the lease right is not set, the real estate sale information does not need to include deduction information for the succession of the rent.

In Figure 6 (a), Figure 6 (b) and Figure 6 (c) the real estate location information of the property to be sold is characterized by including the location and the number of the property to be sold. According to the intention of the location information of the real estate location information remains in the real estate location information, only the location information may move to the land (forest) information and / or building information.

In (a) and (c) of FIG. 6, land (forest) information includes land information and / or area information (e.g., land area expressed in square meters or "flat") and / or price information per unit area. (Eg, price per square meter, or price per square meter) and / or owner information of the land (forest).

According to the implementation method of the present invention, the land information is "before" for cultivating trees without using water, "answer" for cultivating mainly vegetation using water, cultivating fruit trees collectively and corresponding to "accessories connected thereto" "Forests" corresponding to orchards for livestock and dairy purposes and their associated farmland, and "forests" including forest and forested rock, bamboo, forest, gravel, sandy, wetland, moorland, and tidal flats. "," Mineral ground "where hot water, mineral water, oil, etc. are eluted," salt "corresponding to the land where salt is collected and the accessories connected to it, the site for the construction of the building and attached facilities, the garden and the site construction project. "Site" corresponding to "large", "factory site" corresponding to the factory facility and the accessories connected to it, "school site" corresponding to the accessories connected to schools and sports grounds and teachers in a certain area, public transport "Roads", "railways" corresponding to land with fixed tracks for transport and transportation and now connected attachments, "rivers" corresponding to lands where natural runoff is expected, water repellants, breakwaters, breakwaters , "Dikes" for scavenger, etc., "dwelling" corresponding to water / drainage man-made waterways and their associated accessories, "maintenance" where water in certain areas is accumulated or stored at all times, supplying purified water "Waterworks" for the purpose, "parks" determined / notified as public parks by the city planning, "sports lands" corresponding to sports facilities and attached accessories, "oil lands" for recreation and recreation of the general public, religious rituals "Religious land" for people, "historic sites" designated as cultural property, "cemeteries" corresponding to human tombs and their attachments, "parking stations" with independent facilities for parking of cars, petroleum / petroleum products or liquefied petroleum gas Above sales At least one or more "gas station", "warehouse" for storing or storing goods, "fish farm" for breeding or aquaculture of aquatic organisms artificially created on land, and "hybrids" not belonging to any other category; Is done.

In (b) of FIG. 6 and (c) of FIG. 6, the building information may include structural information (eg, "reinforced concrete slab roof") and / or usage information (eg, "residential") and / or area information (eg, Land area represented by square meters, or "flat") and / or price information per unit area (eg, price per square meter, or price per square meter) and / or owner owner information of the building.

Land owner identification information and / or building owner identification information included in the extended fields in (a) of FIG. 6 and (b) and (6) of FIG. 6 is registered in the land (forest) and / or building register. Includes the information in the form of a digital content attachment or a copy of the contents of the registered copy as it is.

7 is a diagram illustrating a real estate selling information structure of real estate selling contract information according to an embodiment of the present invention.

In more detail, the selling information of the real estate of FIG. 7 includes information corresponding to the contents of the sales contract for the selling property, and includes detailed information of the selling property, ownership transfer amount information, and ownership transfer information. The information on the seller's obligation confirmation information, the contract termination condition information, and the detailed contract information for each real estate are preferable to sell the real estate.

In FIG. 7, the detailed information on the target property for sale includes detailed information on the real estate that the seller actually wants to sell among the real estate corresponding to the real estate registration information. For example, when the real estate to be sold is an apartment (or multi-family house), it is preferable to include detailed information such as "several floors" and "several houses" which are not included in the real estate registration information. When the real estate to be sold is land (forest), when the land (forest) is to be registered and sold only in part, detailed information such as "300 square meters in the east direction" corresponding to the division registration is included. desirable.

According to another exemplary embodiment of the present invention, according to the intention of the person skilled in the art, the detailed information of the real estate to be sold may move to the real estate registration information of FIG.

The ownership transfer amount information is the amount of information for selling the property to be sold to at least one or more buyers, and is generally the sum of deductions, down payments, at least one intermediate payment, and the balance of the transfer of ownership information.

The transfer of ownership information may include deduction information and / or down payment information, down payment payment date information and / or at least one or more intermediate payment information and intermediate payment payment date information and / or balance information and balance payment date information and / or ownership transfer date information and ownership transfer It includes at least one information editing flag.

The deduction information of the transfer of ownership information may include a bond for the sold property and / or a share ratio of the property (for example, a seller owns a certain share of the sold property and owns a share owned by the seller). The amount deducted by the seller).

The down payment information of the ownership transfer information specifies the amount information to be paid to the seller at the time the real estate contract is concluded, and the down payment payment date information includes a date and time when the real estate contract is concluded.

It is preferable that the middle plating information and the middle plating payment date and time information of the transfer of ownership information include at least one, and each payment amount and the payment date and time to pay at least once the remaining amount excluding the deduction, the down payment and the balance among the transfer of ownership rights It is made, including.

The balance information and balance payment date and time information of the transfer of ownership information includes the remaining amount of payment and the payment date and time except for the deduction, the down payment and all the middle payments.

The ownership transfer date and time information of the ownership transfer information includes the date and time information for transferring ownership of the property to be sold (for example, ownership on a certified copy of the register) from the seller to the buyer.

The transfer ownership information edit flag of the transfer ownership information is a flag that sets whether to allow the transfer of ownership information to be edited by another seller and / or the buyer, and if the transfer ownership information edit flag is set to "editable". Other sellers and / or buyers may edit the ownership transfer information according to their intentions, and if the ownership transfer information edit flag is set to “uneditable,” the ownership transfer information may only be edited by the seller. Can be.

In this figure, the seller's duty confirmation information is the seller's obligations in respect of taxes and utility bills, and / or the seller's obligations to transfer ownership, and / or the seller's obligations in the event of a seller's breach of the contract, Seller's obligation to release a certain bond in the real estate, and the seller's obligation to include at least one of the seller's obligations in anticipated disputes in the common name of the property.

According to the implementation method of the present invention, the seller duty confirmation information is preferably included in the real estate purchase contract information, the seller obligation confirmation information and the buyer obligation confirmation information is the real estate sales contract information of the real estate sales management D / B (145) In the combined with one complete obligation identification information for the trading party. Of course, according to another implementation method, the seller obligation confirmation information may be included in the real estate sale information of the real estate sale contract information.

In FIG. 7, the contract termination condition information specifies the conditions for dissolution of the real estate sales contract, and follows the standard contract termination conditions for real estate sales, and the conditions not included in the contract information are specified in the special agreement information.

In FIG. 7, detailed contract information for each real estate indicates when special contract information occurs that is not included in the real estate sale information. This is an area that will be added in the future due to the sale of real estate in the applicable area.

8A, 8B, and 8C illustrate an implementation method of digitally signing real estate sale contract information according to an implementation method of the present invention.

In more detail, FIG. 8A illustrates a method of directly digitally signing at least one or more pieces of information included in the basic field of the real estate sale contract information through the seller private key, and FIG. 8B is a basic diagram of the real estate sale contract information. Generate a message digest including a predetermined one-way hash function (e.g., a hash code of a predetermined length regardless of the length of the real estate sale contract information) at least one or more pieces of information included in the field area; A one-way hash function that cannot identify (or infer) the original message through the hash code (or message digest.) The seller terminal 200a and the server 100 use the same hash function. And a method for generating a message digest and digitally signing the message digest. To the at least one or more information and at least one information field is included in the basic area linking the message digest produced by a predetermined one-way hash function is performed on the method of digital signature.

8A and 8B and 8C, the method of digitally signing the real estate sale contract information is included in whether an extension field is included and / or whether the message digest is generated and / or encrypted with the seller's private key. Hundreds of implementations are possible depending on the type of information and message digest. 8A, 8B, and 8C illustrate and illustrate the most representative and simple method so that those skilled in the art can easily infer various electronic signature schemes proposed through the present invention. Those skilled in the art can easily infer various implementation methods for electronically signing the real estate sale contract information with the intention of those skilled in the art with reference to the present drawings 8a and / or 8b and / or 8c. You can do it. The technical idea of the present invention includes all kinds of digital signature schemes that can be inferred with reference to FIGS. 8A and / or 8B and / or 8C.

8A illustrates a method of directly digitally signing at least one or more pieces of information included in the basic field of the real estate sale contract information through the seller's private key, and FIG. 8A illustrates basic fields of the real estate sale contract information. Seller information, real estate registration information and real estate sale information included in the concatenated and encrypted by the seller's private key to digitally sign, (b) of Figure 8a is the seller information contained in the basic field of the real estate sale contract information The digital signature is encrypted through the seller's private key, and (c) of FIG. 8a associates the seller information and the real estate registration information included in the basic field of the real estate sale contract information and encrypts the information through the seller's private key. (D) of FIG. 8A indicates that the selling is included in the basic field of the real estate selling contract information. This information is to be concatenated with the seller information and the sale information of the real estate and encrypted by the seller's private key to digitally sign.

As shown in FIG. 8A, confidentiality, authentication, and non-repudiation of at least one digitally signed information encrypted by the seller's private key among the real estate selling contract information are secured, but the integrity of the digitally signed information may be weak. Accordingly, in order to secure the integrity of the digitally signed information, the basic field of FIG. 8A may be further included in the basic field of FIG. 8A, thereby improving the integrity of the digitally signed information.

Persons of ordinary skill in the art to which the present invention pertains can easily refer to this figure 8a to facilitate various implementation methods for digitally signing at least one or more information included in the real estate sale contract information by the seller private key. Since it may be inferred, further embodiments inferred from this figure 8a will be omitted for convenience.

FIG. 8B is a method for generating a message digest through a predetermined one-way hash function and at least one or more pieces of information included in the basic field of the real estate sale contract information, and digitally signing the message digest. ) Generates respective message digests for seller information, real estate registration information, and real estate sale information included in the basic field of the real estate sale contract information, concatenates the message digests, encrypts them through the seller private key, and then digitally signs them. (B) of FIG. 8b is to generate a message digest for the seller information included in the basic field of the real estate sale contract information, and to encrypt the message digest through the seller private key to digitally sign. (C) of the information on the sale of contract information Each message digest for the seller information and the real estate registration information included in the field is generated, the message digests are concatenated, and the electronic signature is encrypted by using the seller private key. Each message digest for the seller information and the property sale information included in the basic field of the contract information is generated, the message digests are concatenated, and the digital signature is encrypted through the seller private key. This ensures confidentiality, authentication, integrity and non-repudiation of at least one or more information digitally signed by the seller's private key among the real estate sale contract information.

According to an embodiment of the present invention, as shown in FIG. 8B, at least one or more pieces of information included in the basic field area of the real estate sale contract information are generated through a predetermined one-way hash function, and a message signature is generated by digital signature. As shown in FIG. 8A, the information contained in the real estate sale contract information is advantageously processed faster than the electronic signature by directly encrypting the information with the seller private key.

Those skilled in the art to which the present invention pertains may generate a message digest for at least one or more information included in the property sale contract information with reference to FIG. 8B, and convert the at least one message digest into the seller. Since various implementation methods of digitally signing by encrypting with a private key can be easily inferred, further embodiments inferred from this figure 8b will be omitted for convenience.

FIG. 8C illustrates an embodiment of an electronic signature in which at least one or more pieces of information included in the basic field area and the message digest generated by the predetermined one-way hash function are linked to each other. Generate a message digest for the seller information in the basic field of the real estate sale contract information, and concatenate the generated message digest and the seller information, the real estate registration information and the real estate sale information included in the basic field to encrypt with the seller private key. 8C, (b) generates a message digest for the real estate registration information in the basic field of the real estate sale contract information, and the seller information and the real estate registration information included in the generated message digest and the basic field. And the sale of real estate information The digital signature is encrypted by the seller's private key, and (c) of FIG. 8C generates a message digest for the property sale information in the basic field of the real estate sale contract information, and the seller includes the generated message digest and the default field. The information, the real estate registration information and the real estate sale information are concatenated and encrypted with the seller's private key to digitally sign. This ensures confidentiality, authentication, integrity and non-repudiation of at least one or more information digitally signed by the seller's private key among the real estate sale contract information.

According to an embodiment of the present invention, as shown in FIG. 8C, the electronic signature of the at least one or more information included in the basic field region and the message digest generated through the predetermined one-way hash function may be electronically signed. As shown in FIG. 8A, the server 100 simplifies the process of authenticating the validity of the electronically signed real estate sales contract information, compared to directly encrypting the information contained in the real estate sales contract information with the seller private key. There is an advantage.

Those skilled in the art to which the present invention pertains may generate a message digest for at least one or more information included in the real estate sale contract information with reference to FIG. 8C, and include at least the information included in the real estate sale contract information. Since various implementation methods of electronically signing one or more information and the generated at least one message digest with the seller private key can be easily inferred, further embodiments inferred from this figure 8c will be omitted for convenience.

9A, 9B, and 9C are diagrams illustrating an implementation method of selecting a property to be sold according to an embodiment of the present invention.

In more detail, FIG. 9A illustrates that the seller terminal 200a accesses the server 100 to receive a predetermined identity and receives real estate information owned by the seller through the server 100, and receives the predetermined information from the real estate information. An embodiment of the present invention relates to a method for selecting a real estate to be sold, and FIG. 9B is a method for directly inputting the real estate to be sold after confirming a predetermined identity by accessing the server 100 from the seller terminal 200a. 9c indicates that the seller terminal 200a and the identification server 150 are connected through a predetermined network 175 and / or communication means 175, the identification server 150 in the seller terminal 200a. The present invention relates to a method of directly inputting the property to be sold after accessing a predetermined identity. Those skilled in the art to which the present invention pertains, it will be clearly understood that the implementation method of this figure 9a, 9b and 9c may be made through a predetermined real estate transaction terminal 200c.

Referring to FIG. 9A, the seller terminal 200a accesses the server 100, inputs predetermined seller identification information, and transmits the identification information to the server 100 (900), thereby transmitting the seller terminal 200a. Initiate a real estate sale contract through the seller, the seller identification information is preferably transmitted in an encrypted web method, or transmitted in an encrypted manner through a dedicated program.

When the seller identification information is received as described above, the server 100 confirms the identity of the seller in association with the identification server 150 based on the seller identification information (905).

According to an embodiment of the present invention, in the identification method for the seller, the server 100 provides the seller identification information to the identification server 150, the identification server 150 in the identity As the confirmation of the identity of the seller based on the confirmation information, it is preferable that the seller terminal 200a performs the identity verification process through the certification authority 165 during the identification process.

If the seller's identity is not verified (for example, if the seller fails to verify the identity) (910), the server 100 generates a predetermined seller identification error message and transmits it to the seller terminal 200a. Output 915 and terminate the real estate sale contract service for the seller.

On the other hand, if the seller's identity is confirmed (for example, if the identity of the seller is successful) (910), the server 100 provides the seller identification result information to the real estate information server 155 to own the seller In step 920, the real estate information server 155 searches the seller's real estate information using the seller identification result information as a keyword (925).

If the real estate information owned by the seller is not retrieved (930), the server 100 generates a predetermined real estate selling error message and transmits the output to the seller terminal (200a) and outputs (935) the real estate for the seller. Terminate the sale contract service.

On the other hand, at least one real estate information owned by the seller is searched (930), and the real estate information server 155 extracts and provides the seller owned real estate information corresponding to the search result to the server 100 (940). The server 100 transmits the seller owned real estate information to the seller terminal 200a, and outputs the seller owned real estate list on the seller terminal 200a screen (945). At least one or more of a server-side web method and / or a hybrid web method and / or a client-side web method and / or an electronic document reception based dedicated program method and / or a data reception based dedicated program method according to the functional configuration of 200a). It is preferred to be made through.

After the seller-owned real estate list is output as described above, the seller terminal 200a requests the seller to select a real estate to be sold from the real estate list (950), if the real estate to be sold is selected from the real estate list. In operation 955, the seller terminal 200a transmits the selected sale target real estate information to the server 100 in operation 960. The process may include a server-side web according to a functional configuration provided in the seller terminal 200a. And / or hybrid web method and / or client-side web method and / or electronic document receiving based dedicated program method and / or data receiving based dedicated program method.

Referring to FIG. 9B, after the seller terminal 200a and the server 100 and / or the identification server 150 perform the processes of 900 to 915 in association with each other, the seller identity is confirmed. (For example, if the identity verification for the seller succeeds) (910), the server 100 transmits the identification result information for the seller to the seller terminal 200a (965b), the process is the seller At least one of a server-side web method and / or a hybrid web method and / or a client-side web method and / or an electronic document reception based dedicated program method and / or a data reception based dedicated program method according to the functional configuration provided in the terminal 200a. It is preferable to make it through the above method.

The seller terminal 200a that has received the seller identification result information from the server 100 is a seller's terminal 200a screen, and the seller's real estate information (e.g., location information and / or address information of the real estate to be sold). Request input of 970, and the seller's real estate information is input from the seller (975), the seller terminal 200a transmits the input of the seller's real estate information to the server 100. 980, the process is a server-side web method and / or a hybrid web method and / or a client-side web method and / or electronic document reception based dedicated program method and / or according to the functional configuration provided in the seller terminal (200a) It is preferable to use at least one or more of the data reception-based dedicated program method.

Referring to FIG. 9c, the seller terminal 200a accesses the identification server 150, inputs predetermined seller identification information, and transmits the identification information to the identification server 150 (900c). Initiate a real estate sale contract through 200a), wherein the seller's identification information is transmitted in an encrypted web manner or in an encrypted manner through a dedicated program.

When the seller identification information is received as described above, the identification server 150 verifies the identity of the seller based on the seller identification information (905c).

According to the embodiment of the present invention, the identification method for the seller is to verify the identity of the seller on the basis of the identification information in the identification server 150, the seller terminal in the identification process It is preferable that 200a performs the identity verification process through the certification authority 165.

If the seller's identity is not verified (eg, if the seller fails to verify the identity) (910c), the identification server 150 generates a predetermined seller identification error message to the seller terminal 200a. Send and output 915c, and terminate the real estate sale contract service to the seller.

On the other hand, if the seller's identity is confirmed (for example, if the identity verification for the seller is successful) (910c), the identification server 150 transmits the identification result information for the seller to the seller terminal (200a) 965c, the process is a server-side web method and / or a hybrid web method and / or a client-side web method and / or electronic document reception based dedicated program method and / or according to the functional configuration provided in the seller terminal (200a) It is preferable to use at least one or more of the data reception-based dedicated program method.

The seller terminal 200a which has received the seller identification result information from the identification server 150 is displayed on the seller terminal 200a screen. Request information (970), and if the seller's real estate information is input from the seller (975), the seller terminal (200a) transmits the input to the server 100 to sell the real estate information. In step 980, the process is a server-side web method and / or a hybrid web method and / or a client-side web method and / or an electronic document reception based dedicated program method according to the functional configuration provided in the seller terminal 200a. Alternatively, the data reception method may be performed through at least one or more of a dedicated program method based on data reception.

10A and 10B illustrate an implementation method of transmitting real estate sale contract information to the server 100 according to an implementation method of the present invention.

In more detail, in FIG. 10A, after selecting (or entering) the real estate to be sold in the seller terminal 200a through the process of FIG. 9a, 9b, or 9c, the seller terminal 200a sells a predetermined real estate. The preferred embodiment of the present invention generates contract information and transmits it to the server 100, and FIG. 10b collectively transmits the seller identification information and real estate selling contract information to the server 100 in the seller terminal 200a. It is about a preferred method of implementation. Those skilled in the art to which the present invention pertains, it will be clearly understood that the implementation method of FIGS. 10A and 10B may be made through a predetermined real estate transaction terminal 200c.

Referring to FIG. 10A, when a predetermined sale target property is selected (or input) by performing the process of FIG. 9A, 9B, or 9C, the server 100 is connected to the real estate registration server 160. Extracting predetermined property registration information for the property to be sold (1000), and storing the identification information of the seller and the property information for sale in the predetermined storage unit 140 by linking (1005), thereby drawing In step 12, a procedure for authenticating validity of seller information and / or real estate registration information of the real estate sale contract information is easily and conveniently processed. Of course, according to the intention of the person skilled in the art, the process of storing the predetermined storage unit 140 by linking the seller identification result information and the real estate registration information to be sold may be omitted.

The server 100 may include the real estate registration information for sale in a server-side web method and / or a hybrid web method and / or a client-side web method and / or an electronic document reception based dedicated program method and / or a data reception based dedicated program method. Transmits to the seller terminal 200a through at least one method (1010), the seller terminal 200a is a predetermined seller information and / or real estate registration information and / or real estate seller information and / or buyer information and / or A predetermined real estate sale interface for inputting (or selecting) rider information is output (1015). In addition, the seller terminal 200a reads the received real estate registration information and automatically inputs predetermined automatic input information into an automatic input item (eg, real estate registration information input item) of the real estate selling interface (1020). In operation 1025, a request is made to input predetermined information into a seller input item of the real estate selling interface.

If the seller completes the input of the predetermined seller input item using the real estate seller interface (1030), the seller terminal 200a is the predetermined seller information and real estate registration information entered on the real estate seller interface screen And generating predetermined selling information including 10 selling information and / or predetermined buying information and / or specialty information, the selling selling information comprising a predetermined data block or an electronic document. It is all possible in the form.

When the real estate selling contract information is generated as described above, the seller terminal 200a encrypts the real estate selling contract information with the seller private key through at least one of the drawings 8a and / or 8b and / or 8c. The electronic signature is processed (1040), and the electronically signed property sale contract information is transmitted to the server 100 through a predetermined encryption procedure (1045).

Referring to FIG. 10B, the seller terminal 200a inputs (or selects) predetermined seller information and / or real estate registration information and / or real estate seller information and / or buyer information and / or special information. The selling interface is output (1015), and a request is made to input predetermined information to the seller input item of the selling property interface (1025).

If the seller completes the input of the predetermined seller input item using the real estate seller interface (1030), the seller terminal 200a is the predetermined seller information and real estate registration information entered on the real estate seller interface screen And generating predetermined selling information including 10 selling information and / or predetermined buying information and / or specialty information, the selling selling information comprising a predetermined data block or an electronic document. It is all possible in the form.

When the real estate selling contract information is generated as described above, the seller terminal 200a encrypts the real estate selling contract information with the seller private key through at least one of the drawings 8a and / or 8b and / or 8c. After digital signature processing (1040), and inputting the predetermined identification information in the seller terminal 200a (1050), the electronic signature of the real estate sale contract information and the inputted seller identification information is encrypted (or electronic envelope) Put in) and transmit to the server 100 (1055).

The server 100 confirms the identity of the seller in association with the identification server 150 on the basis of the seller identification information (1060), if the seller identity is not confirmed (for example, to the seller) If identity verification fails (1065), the server 100 generates a predetermined seller identification error message and transmits and outputs the seller terminal 200a (1070), and sells a real estate contract service for the seller. To exit. On the other hand, if the seller identity is confirmed (1065), the server transmits the seller identification result to the seller terminal (200a) (1075).

11A and 11B illustrate an implementation method of encrypting and transmitting real estate sale contract information according to an implementation method of the present invention.

Referring to FIG. 11A, the information transmitter 265 generates a predetermined message digest through a predetermined one-way hash function for real estate selling contract information to be transmitted through a predetermined network 175 and / or communication means 175. (1100), the digital signature is executed by encrypting the message digest through the seller private key (1105), and the seller private key is the seller IC card 220-1 / IC chip 220-2 and / Alternatively, it is preferable to extract from the public certificate provided in the memory unit 230.

In addition, the information transmitter 265 generates a random secret key for encrypting the real estate sale contract information using a secret key (symmetric key) method (1100), and sells the real estate. The contract information and the certificate digest encrypted with the seller private key and the copy of the certificate including the seller public key are linked to each other and encrypted through the generated secret key (1115), and the server also discloses the secret key used for the encryption. Encrypt using a public key (1120).

According to an embodiment of the present invention, when the server 100 receives the server public key from the certification authority 165 on the network and / or the server 100 to receive the real estate sale contract information, the seller IC card ( 220-1) / IC chip 220-2 and / or it is preferable to extract from the copy of the server public key included in the public certificate provided in the memory 230.

When the real estate selling contract information and the copy of the certificate including the message digest encrypted with the seller private key and the seller public key are linked and encrypted through the generated private key, and the secret key is encrypted through the server public key. And the information transmitting unit 265 encrypts a copy of a certificate including the message digest and the seller public key encrypted with the real estate sale contract information encrypted with the secret key and the seller private key with the server public key. In operation 1125, the server 100 transmits to the server 100 through a predetermined network 175 and / or communication means 175.

The receiving unit receives a copy of a certificate including the real estate selling contract information encrypted with the secret key, the message digest encrypted with the seller private key, and the seller public key, and the secret key encrypted with the server public key (1130). (105) decrypts the private copy encrypted with the server public key (1135) with the server private key, thereby decrypting a copy of the certificate including the message digest and the seller public key encrypted with the real estate sale contract information and the seller private key. To extract the secret key for 1140, the server private key is preferably extracted from the public certificate provided in the server (100).

When the secret key is extracted as described above, the receiving unit 105 decrypts a copy of the certificate including the message digest and the seller public key encrypted with the property sale contract information and the seller private key using the extracted secret key. By doing so (1145), a copy of the certificate including the real estate sale contract information encrypted with the secret key and the message digest encrypted with the seller private key and the seller public key is extracted.

The receiving unit 105 extracts the message digest generated and transmitted from the real estate selling contract information by the information transmitting unit 265 by decrypting the message digest encrypted with the seller private key through the seller public key (1150). In operation 1155, after generating the predetermined message digest using the same one-way hash function of the received real estate sale contract information (1160), the generated message digest and the decrypted message digest are generated. By comparing (1165), the validity of the received real estate sale contract information is confirmed.

If the generated message digest and the decrypted message digest coincide with each other (1170), the receiver 105 processes the validity of the real estate sale contract information as authenticated and completes the reception (1175). On the other hand, if the message digests do not match (1170), the receiver 105 treats the real estate sale contract information as invalid.

According to another embodiment of the present invention, an encryption / decryption scheme as shown in FIGS. 11A and 11B may be replaced by another type of secure communication method (for example, an electronic envelope communication method) by a person skilled in the art. The present invention is in no way limited.

12 is a diagram illustrating an implementation method of storing real estate sale contract information according to one embodiment of the present invention.

More specifically, FIG. 12 is a preferred method of storing the real estate sales contract information received by the server 100 through an encryption / decryption process as shown in FIG. 10A and FIG. 11A and FIG. 11B. .

Referring to FIG. 12, when the real estate selling contract information is received from the seller terminal 200a, the server 100 confirms an electronic signature for the real estate selling contract information (1200).

According to an embodiment of the present invention, when the seller terminal 200a electronically signs the real estate sale contract information in the same manner as in FIG. 8A, the server 100 is encrypted with the seller private key among the real estate sale contract information. It is preferable to verify the electronic signature for the real estate sale contract information by decrypting at least one signed information with the seller public key, and the seller sells the real estate sale contract information to further secure the integrity of the electronic signed information. When information not encrypted with the private key is included, the server 100 generates a predetermined message digest by applying a predetermined one-way hash function to the information decrypted by the seller public key, matches the decrypted information, and encrypts the information. Information by applying the one-way hash function Now, after creating a host, by comparing the message digest, to ensure the integrity of the real estate sale agreement.

According to another embodiment of the present invention, when the seller terminal 200a electronically signs the real estate sale contract information in the same manner as shown in FIG. 8B, the server 100 encrypts the seller private key among the real estate sale contract information. And decode at least one message digest with the seller public key, and generate at least one message digest by applying the same one-way hash function as the seller terminal 200a to at least one or more information corresponding to the message digest. Preferably, the electronic signature for the real estate sale contract information is confirmed by comparing the decrypted message digest with the generated message digest.

According to another embodiment of the present invention, when the seller terminal 200a electronically signs the real estate sale contract information in the same manner as in FIG. 8c, the server 100 encrypts the seller private key among the real estate sale contract information. The at least one digitally signed information and the message digest with the seller public key, and apply the same one-way hash function as the seller terminal 200a to the information corresponding to the decrypted message digest among the decrypted information. After generating the message digest, it is preferable to confirm the electronic signature for the real estate sale contract information by comparing the message digest.

If the electronic signature for the real estate sales contract information is not confirmed (1205), the server 100 generates a predetermined error message for the real estate sales contract information and transmits the output to the seller terminal 200 a ( 1210), terminate the real estate sale contract service for the seller.

On the other hand, when the electronic signature for the real estate sale contract information is confirmed (1205), the server 100 compares the seller information read from the real estate sale contract information with the seller identification result information stored in the storage unit 140 In operation 1215, the validity of the seller information is confirmed.

According to another exemplary embodiment of the present invention, when the seller identification result information is not stored in the storage unit 140, the server 100 may verify the validity of the seller information in association with the identification server 150. It is possible to confirm

If the validity of the seller information is not authenticated (1220), the server 100 generates a predetermined error message for the real estate sale contract information and transmits the output to the seller terminal 200a (1210). The sale of real estate contract service for the seller ends.

On the other hand, if the validity of the seller information is authenticated (1220), the server 100 compares the real estate registration information included in the real estate sale contract information and the real estate target information for sale stored in the storage unit 140, Validate the property being sold (1225).

If the validity of the real estate to be sold is not authenticated (1230), the server 100 generates a predetermined error message for the real estate sale contract information, transmits it to the seller terminal 200a, and outputs it (1210). End the real estate sale contract service for the seller.

According to another exemplary embodiment of the present invention, when the sale target property registration information is not stored in the storage unit 140, the server 100 is connected to the real estate registration server 160 to validate the sale target property. It is possible to check

On the other hand, if the validity of the real estate to be sold is authenticated (1230), the server 100 searches the real estate sales management D / B (145) based on the real estate registration information to retrieve the real estate registration information has been verified validity. Confirm the predetermined real estate sales contract information including.

If predetermined real estate sales contract information including the real estate registration information is not stored in the real estate sales management D / B 145 (for example, the real estate sales management D / B 145 corresponds to the real estate registration information). If the storage area for the real estate is not allocated, or if the real estate sale contract information received from the seller terminal 200a is the first received information for real estate sale corresponding to the real estate registration information (1240), the server ( At least one real estate sales management including a real estate contract information storage area and / or a seller authentication information storage area and / or a buyer authentication information storage area in the real estate transaction management D / B (145) An associated storage area is allocated (1245), and the floating information is stored in the seller information field area of the real estate contract information storage area among the storage areas. The seller information read from the sale contract information is stored (1250), the real estate registration information read from the real estate sale contract information is stored in the real estate registration information field of the real estate contract information storage area (1255), and the real estate contract information The real estate selling information read from the real estate selling contract information is stored in the real estate selling information field of the storage area (1260).

On the other hand, if the predetermined real estate sales contract information including the real estate registration information is stored in the real estate sales management D / B (145) (for example, if the storage area for the real estate corresponding to the real estate registration information has not already been allocated, Or if the real estate sale contract information received from the seller terminal 200a is received after the second for real estate sale corresponding to the real estate registration information) (1240), the server 100 manages the real estate sale management D / B. Extracting the real estate sale information from the real estate contract information storage area corresponding to the real estate registration information (145) from (145) and comparing the real estate sale information and the real estate sale information, thereby confirming the validity of the real estate sale information. (1270).

If the validity of the real estate selling information is not authenticated (for example, the real estate selling information read from the real estate selling contract information is different from the real estate selling information in the real estate contract information storage area of the real estate sales management D / B 145). The server 100 requests the seller terminal 200a to modify real estate selling information (1280), and the seller terminal 200a processes (1015 to 1045) of FIG. 10a. To correct the sale information of the real estate.

According to an embodiment of the present invention, the method for requesting the seller terminal 200a to modify the sale of real estate information from the server 100, the web method and / or the electronic document reception based dedicated program method and / or the data reception based dedicated Preferably at least one or more of programmatic and / or email and / or messenger and / or wireless messaging (eg, a short message).

On the other hand, if the validity of the real estate selling information is authenticated (1275), the server 100 is the seller of the real estate contract information storage area to sell the seller information (for example, the validity of the seller information read from the real estate selling contract information) It is added to the information field area and stored (1285).

Predetermined information is stored in the real estate contract information storage area including the real estate registration information whose validity is verified by the real estate sales management D / B 145 through the processes of (1245 ~ 1260) or (1265 ~ 1285). Is stored, the server 100 stores the electronically signed real estate sale contract information in the seller terminal 200a in the seller authentication information storage area of the real estate transaction management D / B 145 (1290), and the transaction In the event of a dispute over the subject real estate, the ground for resolving the dispute is provided through the real estate sale contract information digitally signed by the seller.

FIG. 13 is a diagram illustrating a structure of a real estate contract information storage area of a real estate transaction management D / B 145 according to an exemplary embodiment of the present invention.

In FIG. 13, the real estate contract information storage area preferably includes a storage area for storing predetermined real estate sales contract information. It is possible to further comprise a region.

Referring to FIG. 13, the real estate contract information storage area includes a real estate registration information field area, a seller information field area, a buyer field area, a real estate transaction information field area and a rider information field area.

According to an embodiment of the present invention, the real estate registration information field region includes real estate registration information of real estate sale contract information received from the seller terminal 200a and real estate registration of real estate purchase contract information received from the buyer terminal 200b. When the information and / or real estate registration information of the real estate sales contract information received from the real estate transaction terminal 200c match, it is preferable to store the real estate registration information as real estate registration information of the real estate sales contract information.

In addition, the seller information field area stores the seller information of the real estate selling contract information received from the seller terminal 200a and / or the seller information of the real estate trading contract information received from the real estate transaction terminal 200c. And / or the buyer information field area stores buyer information of the real estate purchase contract information received from the buyer terminal 200b and / or buyer information of the real estate sales contract information received from the real estate transaction terminal 200c. desirable.

Further, the real estate sale information field area is the case where the real estate selling information of the real estate selling contract information received from the seller terminal 200a and the real estate buying information of the real estate buying contract information received from the buyer terminal 200b coincide with each other. Preferably, the real estate selling information and the real estate buying information are stored as real estate sales information of the real estate sales contract information, and / or it is preferable to store the union of the real estate selling information and the real estate buying information according to an implementation method.

The special information field may include the special contract information of the real estate selling contract information received from the seller terminal 200a and the special information of the real estate buying contract information received from the buyer terminal 200b. Preferably, the information is stored as special information of the real estate sales contract information, or an intersection of the seller-side special information and the buyer-side special information.

14A and 14B illustrate an implementation method of transmitting real estate contract processing information to the purchaser terminal 200b according to one embodiment of the present invention.

In detail, FIG. 14A illustrates a real estate contract information storage area of the real estate transaction management D / B 145 after the purchaser terminal 200b accesses the server 100 and confirms a predetermined identity. The embodiment of the present invention relates to a method of retrieving real estate contract information stored therein and transmitting predetermined real estate contract processing information to the purchaser terminal 200b, and FIG. 14b inputs predetermined purchase target real estate registration information from the purchaser terminal 200b. As a method for transmitting predetermined real estate contract processing information from the server to the buyer terminal (200b), the predetermined buyer to the real estate sales management D / B (145) received from a predetermined seller terminal (200a) This is the case when the information is already stored. Those skilled in the art to which the present invention pertains, it will be clearly understood that the implementation method of FIGS. 14A and 14B may be made through a predetermined real estate transaction terminal 200c.

Those skilled in the art to which the present invention pertains refer to FIGS. 14A and 14B and refer to FIGS. 9A and / or 9B and / or 9C and / or in conjunction with a given seller terminal 200a. Another embodiment of transmitting the real estate contract processing information to the buyer terminal 200b when the buyer information is not stored in the real estate sales management D / B 145 with reference to FIG. 10a, and / or the buyer Identity verification is performed directly through the identification server 150 connected to the buyer terminal 200b through a predetermined network 175 and / or communication means 175, the server 100 in the Another implementation method of transmitting the real estate contract processing information to the buyer terminal 200b may be easily inferred.

Referring to FIG. 14, the buyer terminal 200b accesses the server 100, inputs a predetermined buyer identification information, and transmits the identification information to the server 100 (1400), through the buyer terminal 200b. Initiate a real estate purchase contract, the buyer identification information is preferably transmitted in an encrypted web method, or transmitted in an encrypted manner through a dedicated program.

When the buyer identification information is received as described above, the server 100 confirms the identity of the buyer in association with the identification server 150 based on the buyer identification information (1405).

According to an embodiment of the present invention, the identification method for the buyer, the server 100 provides the buyer identification information to the identification server 150, the identification server 150 in the identity As to confirm the identity of the buyer based on the confirmation information, it is preferable that the buyer terminal 200b performs the identity verification process through the certification authority 165 in the identification process.

If the buyer's identity is not verified (eg, if the identity verification for the buyer fails) (1410), the server 100 generates a predetermined buyer identification error message and transmits it to the buyer terminal 200b. Output 1415 and terminate the real estate purchase contract service for the buyer.

On the other hand, if the buyer's identity is confirmed (e.g., if the identity verification of the buyer is successful) (1410), the server 100 uses the buyer's identification result information of the real estate sales management D / B (145) The real estate contract information storage area is searched for at least one real estate contract information that matches the buyer information (1420).

If the real estate sales contract information is not retrieved from the real estate sales management D / B 145 (eg, if no buyer information is received from the seller terminal 200a) (1425), the process as shown in FIG. 14b is performed. On the other hand, if the real estate sales contract information is retrieved from the real estate sales management D / B (145) (1425), the server 100 extracts the purchase target real estate registration information from the searched real estate sales contract information to confirm the buyer identity In connection with the information is stored in the predetermined storage unit (140) (1430), thereby the process of authenticating the validity of the buyer information and / or real estate registration information of the real estate purchase contract information in Figure 20a is handled easily and conveniently In accordance with the intention of the skilled person, the buyer storing the predetermined storage unit 140 by linking the buyer identification result information and the purchase target real estate registration information It is but may be omitted.

The server 100 generates real estate contract processing information including at least one or more real estate registration information, real estate sales information, and / or real estate seller information, and / or special information from the real estate sales contract information (1435), The real estate contract processing information is electronically signed using the server certificate (1440), and the electronically signed real estate contract processing information is stored in an electronic bag and transmitted to the vehicle means terminal (1445).

Referring to FIG. 14B, if the real estate sales contract information is not retrieved from the real estate sales management D / B 145 (1425), the server 100 sends the buyer identification result information to the purchaser terminal 200b. In operation 1450, the buyer terminal 200b requests input of the desired purchase target real estate information to the buyer terminal 200b screen (1455), and when the predetermined purchase target real estate information is input from the buyer (1460). The buyer terminal 200b transmits the inputted purchase target real estate information to the server 100 (1465), and the process is performed by a server-side web method according to a functional configuration provided in the buyer terminal 200b. Or at least one of a hybrid web method and / or a client-side web method and / or an electronic document receiving based dedicated program method and / or a data receiving based dedicated program method. It is to be preferred.

The server 100 receiving the purchase target real estate information searches the real estate sales management D / B 145 by using the purchase target real estate information and searches for predetermined real estate sales contract information matching the real estate information. (1470).

If the real estate sales contract information is not retrieved from the real estate sales management D / B 145 based on the real estate information to be bought (1475), the server 100 generates an error message for the real estate information to be bought and the buyer Transmitting and outputting to the terminal 200b (1480), the real estate purchase contract service for the buyer is terminated.

On the contrary, if the real estate sales contract information is retrieved from the real estate sales management D / B 145 based on the purchase target real estate information (1475),

The server 100 generates (1485) real estate contract processing information including at least one or more target real estate registration information, real estate sales information, and / or real estate seller information, and / or special information from the real estate sales contract information. The real estate contract processing information is electronically signed using the server certificate (1490), and the electronically signed real estate contract processing information is put in an electronic bag and transmitted to the vehicle means terminal (1495).

15 is a diagram showing an implementation method for transmitting real estate contract processing information according to one embodiment of the present invention.

Referring to FIG. 15, the transmitting unit 115 generates a random random key for encrypting the real estate contract processing information using a secret key (symmetric key) method (1500). The real estate contract processing information is encrypted using the generated private key (1505), and the private key encrypting the real estate contract processing information is encrypted using the public key of the buyer (1510).

According to an embodiment of the present invention, the buyer public key is preferably extracted from a copy of the buyer public key received from the certification authority 165 on the network.

If the real estate contract processing information is encrypted with a predetermined secret key randomly generated as described above, and the secret key is encrypted through the buyer public key, the transmission unit 115 and the real estate contract processing information encrypted with the secret key; The private key encrypted with the buyer public key is transmitted to the seller through the predetermined network 175 and / or the communication means 175 (1515).

The information receiving unit 260 receives (1525) the real estate contract processing information encrypted with the secret key and the private key encrypted with the buyer public key through the network 175 and / or the communication means 175, and discloses the buyer. Decrypting the secret key encrypted with the key with the buyer private key (1530), extracting the secret key for decrypting the real estate contract processing information (1535), and the buyer private key is the seller IC card 220-1; It is preferable to extract from the public certificate provided in the IC chip 220-2 and / or the memory 230.

When the secret key is extracted as described above, the information receiving unit 260 decodes the real estate contract processing information using the extracted secret key (1540), and extracts the real estate contract processing information encrypted with the secret key; 1545), the extracted real estate contract processing information is transmitted from the transmitting unit 115 and is valid real estate contract processing information received by the information receiving unit 260 through the network 175 and / or the communication terminal 175. to be.

16A and 16B illustrate an implementation method of transmitting real estate purchase contract information to the server 100 according to an implementation method of the present invention.

In more detail, FIG. 16A receives the real estate contract processing information from the server 100 to the buyer terminal 200b by performing the process of FIGS. 14A and / or 14B, and uses the real estate contract processing information. The preferred embodiment of the method for generating predetermined real estate purchase contract information and transmitting the generated real estate purchase contract information to the server 100. In FIG. 16b, the buyer terminal 200b accesses the server 100 and confirms a predetermined identity. When the server 100 transmits at least one real estate sale contract information stored in the real estate transaction management D / B 145 to the buyer terminal 200b, the buyer terminal 200b. Select and edit predetermined contract target real estate selling contract information among the real estate selling contract information to generate predetermined real estate buying contract information and transmit it to the server 100. It relates to a one exemplary method.

Referring to FIG. 16A, the buyer terminal 200b may input (or select) predetermined buyer information and / or real estate registration information and / or real estate purchase information and / or buyer information and / or special information. The buying interface is output (1600). In addition, the buyer terminal 200b automatically inputs predetermined automatic input information into an automatic input item (eg, real estate registration information input item) of the real estate buying interface (1605), and enters a buyer of the real estate buying interface. A request is made to input predetermined information into an item (1610).

If the buyer completes input of a predetermined buyer input item using the real estate buying interface (1615), the buyer terminal 200b receives the predetermined buyer information and real estate registration information input on the real estate buying interface screen. And generate predetermined real estate purchase agreement information including real estate purchase information and / or predetermined buyer information and / or special information (1620), wherein the real estate purchase contract information is in the form of a predetermined data block or an electronic document. It is all possible in the form.

When the real estate purchase contract information is generated as described above, the buyer terminal 200b uses at least one of an electronic signature scheme in which the real estate sale contract information of FIGS. 8a and / or 8b and / or 8c is replaced with real estate purchase contract information. Through the above method, the real estate purchase contract information is encrypted with the buyer private key, and the electronic signature is processed (1625), and the electronic signature of the real estate purchase contract information is transmitted to the server 100 through a predetermined encryption procedure (1630). .

Referring to FIG. 16B, when the buyer terminal 200b connects to the server 100 and inputs identification information of a buyer to the server 100 (1400), the server 100 may purchase the buyer. On the basis of the identification information, the identification of the buyer is confirmed in connection with the identification server 150 (1405).

If the buyer's identity is not verified (eg, if the identity verification for the buyer fails) (1410), the server 100 generates a predetermined buyer identification error message and transmits it to the buyer terminal 200b. Output 1415, and terminate the real estate purchase contract service for the buyer.

On the other hand, if the buyer's identity is verified (e.g., if the identity verification of the buyer is successful) (1410), the server 100 is stored at least through the process of Figure 12 from the real estate sales management D / B (145) Extract one or more real estate sales contract information to obtain at least one or more of a server-side web method and / or a hybrid web method and / or a client-side web method and / or an electronic document receiving based dedicated program method and / or a data receiving based dedicated program method. Through the buyer terminal 200b through.

The buyer terminal 200b outputs the received at least one real estate selling contract information, and requests to select predetermined contract target selling contract information from the real estate selling contract information (1640).

If at least one of the real estate selling contract information is selected (1645), the buyer terminal 200b inputs (or edits) the buyer information of the selected real estate selling contract information (1650), and if the real estate selling contract information If the real estate selling information and / or special information of the need to further edit (1655), the buyer terminal 200b further edits the real estate selling information and / or special information of the selected sale contract information (1660), the selected real estate Generating prescribed real estate purchase contract information for the buyer from the sale contract information (1665),

The buyer terminal 200b receives the real estate purchase contract information through at least one of electronic signatures in which the real estate selling contract information of FIGS. 8a and / or 8b and / or 8c is replaced with real estate buying contract information. The digital signature process is performed by encrypting with the buyer private key (1625), and the electronically signed real estate purchase contract information is transmitted to the server 100 through a predetermined encryption procedure (1630).

17 is a diagram showing a real estate purchase contract information structure according to an embodiment of the present invention.

In more detail, Fig. 17 shows a preferred structure of real estate purchase contract information, with buyer information, real estate registration information, and real estate purchase information as basic fields, and buyer information and special information as extended fields. May be in the form of a predetermined data block or in the form of an electronic document.

In FIG. 17, the position of each information included in the real estate purchase contract information may be changed according to the intention of the person skilled in the art, and the present invention is not limited thereto. In addition, in FIG. 17, the basic field of the real estate purchase contract information basically includes the buyer information, and the real estate registration information and / or the real estate purchase information may be moved to an extended field according to the intention of the person skilled in the art, or the seller information. And / or special information may move to the basic field.

18 is a diagram showing a buyer information structure of real estate purchase contract information according to an embodiment of the present invention.

In more detail, Figure 18 shows the buyer's name, the buyer's social security number, the buyer's address, the buyer's contact information (telephone / mobile phone), and the ownership transfer amount withdrawal account information. It illustrates a preferred structure of the buyer transfer amount confirmation information for confirming the information and / or buyer information, the agent rights authentication information as an extended field when the real estate purchase is made through a predetermined agent.

The ownership transfer amount confirmation information is information for confirming the buyer's ability to pay the ownership transfer amount for the property to be purchased, and includes the bank balance and / or loan conditions for the buyer (eg, the maximum loan amount for the buyer; Or as information on whether or not to pay the ownership transfer amount based on the maximum loan amount, etc.) and / or credit rating information, etc. with respect to the property to be purchased at present. That is, if the buyer's current bank balance is available for payment of the transfer of ownership, if the balance is insufficient, what is the maximum loan amount as collateral for the property already owned by the buyer, or as the collateral for the property currently being bought It is preferable to include information such as how much the loan amount, or what is the maximum loan amount that can be credited based on the buyer's credit rating information.

Those skilled in the art to which the present invention pertains may change the basic field and extended field according to the intention of those skilled in the art, or may add new information reflecting the intention of those skilled in the art. For example, the ownership transfer amount withdrawal account information of the basic field may be changed to another according to various ownership transfer amount payment forms (eg, unpaid bank transfer, etc.), and may also be moved to the extension field.

19A and 19B illustrate an implementation method of encrypting and transmitting real estate purchase contract information according to an implementation method of the present invention.

Referring to FIG. 19A, the information transmitting unit 265 generates a predetermined message digest through a predetermined one-way hash function for real estate purchase contract information to be transmitted through a predetermined network 175 and / or communication means 175. (1900), the digital signature is executed by encrypting the message digest through the buyer private key (1905), and the buyer private key is the buyer IC card 220-1 / IC chip 220-2 and / Alternatively, it is preferable to extract from the public certificate provided in the memory unit 230.

In addition, the information transmission unit 265 generates a predetermined random secret key for encrypting the real estate purchase contract information in a secret key manner (1900), and the message digest encrypted with the real estate purchase contract information and the buyer private key. And encrypting (1915) the generated private key in association with a copy of the certificate including the buyer public key, and encrypting the private key used for the encryption using the server public key (1920).

According to the embodiment of the present invention, the server public key is received from the certification authority 165 on the network, and / or when the server 100 to receive the real estate purchase contract information is determined, the buyer IC card ( 220-1) / IC chip 220-2 and / or it is preferable to extract from the copy of the server public key included in the public certificate provided in the memory 230.

When the real estate purchase contract information, a copy of a certificate including the message digest encrypted with the buyer private key, and the copy of the certificate including the buyer public key are linked and encrypted through the generated private key, and the secret key is encrypted through the server public key. And the information transmitting unit 265 encrypts a copy of a certificate including the real estate purchase contract information encrypted with the private key, the message digest encrypted with the buyer private key, and the buyer public key with the server public key. It is transmitted to the server 100 via a predetermined network 175 and / or communication means 175 in connection with (1925).

The receiving unit receives a copy of a certificate including the real estate purchase contract information encrypted with the secret key, the message digest encrypted with the buyer private key, and the buyer public key, and the secret key encrypted with the server public key (1930). (105) decrypts the private copy encrypted with the server public key with the server private key (1935), thereby decrypting a copy of the certificate including the message digest and the buyer public key encrypted with the real estate purchase contract information and the buyer private key. The secret key for extracting (1940), the server private key is preferably extracted from the public certificate provided in the server (100).

When the secret key is extracted as described above, the receiving unit 105 decrypts a copy of the certificate including the message digest and the buyer public key encrypted with the real estate purchase contract information and the buyer private key using the extracted secret key. By (1945), a copy of the certificate including the real estate purchase contract information encrypted with the secret key and the message digest encrypted with the buyer private key and the buyer public key is extracted.

The receiver 105 extracts the message digest generated and transmitted from the real estate purchase contract information by the information transmitter 265 by decrypting the message digest encrypted with the buyer private key through the buyer public key (1950). (1955), after generating the predetermined message digest through the same one-way hash function with the received real estate purchase contract information (1960), the generated message digest and the decrypted message digest By comparing (1965), the validity of the received real estate purchase contract information is confirmed.

If the generated message digest coincides with the decrypted message digest (1970), the receiving unit 105 processes the validity of the real estate purchase contract information as authenticated and completes the reception (1975). On the other hand, if the message digests do not match (1970), the receiver 105 treats the real estate purchase contract information as invalid.

According to another embodiment of the present invention, an encryption / decryption scheme as shown in FIGS. 19A and 19B may be replaced by another type of secure communication method (for example, an electronic envelope communication method) by a person skilled in the art. The present invention is in no way limited.

20A and 20B illustrate an implementation method of storing real estate sales contract information through real estate purchase contract information according to an exemplary embodiment of the present invention.

More specifically, FIG. 20a is electronically signed as shown in FIGS. 16a and / or 16b, and the real estate purchase contract information is received using the real estate purchase contract information received through the encryption / decryption process as shown in FIGS. 19a and 19b. The preferred embodiment of the method for storing predetermined real estate sales contract information in the real estate sales management D / B (145), Figure 20b is a predetermined real estate sales to the real estate sales management D / B (145) in the server 100 The contract information is transmitted to the seller terminal 200a and / or the buyer terminal 200b and outputted, and predetermined seller authentication information and / or buyer authentication information are received from the seller terminal 200a and / or the buyer terminal 200b. It is about a preferred method of receiving and storing. Those skilled in the art to which the present invention pertains, it will be clearly understood that the implementation method of FIGS. 20A and 20B may be made through a predetermined real estate transaction terminal 200c.

Referring to FIG. 20A, when the real estate purchase contract information is received from the buyer terminal 200b, the server 100 checks an electronic signature for the real estate purchase contract information (2000).

According to an embodiment of the present invention, when the buyer terminal 200b electronically signs the real estate purchase contract information in the same manner as the electronic signature of the real estate sale contract information in FIG. 8a, the server 100 It is preferable to verify the electronic signature for the real estate purchase contract information by decrypting at least one or more information, which is electronically signed by the buyer private key, from the real estate purchase contract information with the buyer public key. In order to further secure the real estate purchase contract information includes information not encrypted with the buyer private key, the server 100 generates a predetermined message digest by applying a predetermined one-way hash function to the information decrypted by the buyer public key. And the unencrypted information matched with the decrypted information. The applying the one-way hash function, and then generates a predetermined message digest, by comparing the message digest, to secure the integrity of the real estate purchase agreement information.

According to another embodiment of the present invention, when the buyer terminal 200b electronically signs the real estate purchase contract information in the same manner as the electronic signature of the real estate sale contract information in FIG. 8b, the server 100 Decrypt the at least one message digest encrypted with the buyer's private key from the real estate purchase contract information with the buyer's public key, and apply the same one-way hash function to the buyer terminal 200b with at least one or more information corresponding to the message digest. By generating a predetermined message digest, and comparing the decrypted message digest and the generated message digest, it is preferable to confirm the electronic signature for the real estate purchase contract information.

According to another exemplary embodiment of the present invention, when the buyer terminal 200b electronically signs the real estate purchase contract information in the same manner as the electronic signature of the real estate sale contract information in FIG. 8c, the server 100 The at least one or more information and a message digest encrypted with the buyer private key in the real estate purchase contract information are decrypted with the buyer public key, and information corresponding to the decrypted message digest from the decrypted information is acquired by the buyer terminal 200b. It is preferable to generate a predetermined message digest by applying the same one-way hash function and then compare the message digest to confirm the electronic signature of the real estate purchase contract information.

If the electronic signature for the real estate purchase contract information is not confirmed (2005), the server 100 generates a predetermined error message for the real estate purchase contract information and transmits it to the buyer terminal (200b) for output; 2010) ends the real estate purchase contract service for the buyer.

On the other hand, if the electronic signature for the real estate purchase contract information is confirmed (2005), the server 100 compares the buyer information read out from the real estate purchase contract information and the buyer identification result information stored in the storage unit 140 The validity of the buyer information is checked (2015).

According to another embodiment of the present invention, when the buyer identification result information is not stored in the storage unit 140, the server 100 is linked with the identification server 150 to validate the buyer information. It is possible to confirm

If the validity of the buyer information is not authenticated (2020), the server 100 generates a predetermined error message for the real estate purchase contract information and transmits it to the buyer terminal 200b for output (2010). End the real estate purchase contract service for the buyer.

On the other hand, if the validity of the buyer information is authenticated (2020), the server 100 compares the real estate registration information included in the real estate purchase contract information and the purchase target real estate registration information stored in the storage unit 140, Validate the property being bought (2025).

If the validity of the purchase target real estate is not authenticated (2030), the server 100 generates a predetermined error message for the real estate purchase contract information and transmits the output to the buyer terminal 200b (2010). End the real estate purchase contract service for the buyer.

According to another exemplary embodiment of the present invention, when the sale target property registration information is not stored in the storage unit 140, the server 100 is connected to the real estate registration server 160 to validate the sale target property. It is possible to check

On the other hand, if the validity of the purchase target real estate is authenticated (2030), the server 100 searches for the real estate sales management D / B (145) based on the real estate registration information and the real estate registration information is verified Confirm the predetermined real estate sales contract information including.

If predetermined real estate sales contract information including the real estate registration information is not stored in the real estate sales management D / B 145 (for example, the real estate sales management D / B 145 corresponds to the real estate registration information). If the storage area for the real estate is not allocated, or if the real estate sale contract information received from the seller terminal 200a is the first received information for real estate sales corresponding to the real estate registration information) (2040), the server ( 100) ends the real estate purchase contract service for the buyer.

According to another exemplary embodiment of the present invention, when the predetermined real estate sales contract information including the real estate registration information is not stored in the real estate sales management D / B 145 (2040), the server 100 is The real estate sales management D / B 145 stores at least one real estate contract management related storage area including a real estate contract information storage area and / or a seller authentication information storage area and / or a buyer authentication information storage area for the buyer property. The information read from the real estate purchase contract information may be stored in the real estate transaction management related storage area.

On the other hand, if the predetermined real estate sales contract information including the real estate registration information is stored in the real estate sales management D / B (145) (for example, if the storage area for the real estate corresponding to the real estate registration information has not already been allocated, Or if the real estate purchase contract information received from the buyer terminal 200b is information received after the second for real estate sale corresponding to the real estate registration information) (2040), the server 100 manages the real estate sale management D / B. Extracting the real estate sale information from the real estate contract information storage area corresponding to the real estate registration information (145) from (145), and comparing the real estate purchase information and the real estate sales information, to confirm the validity of the real estate purchase information (2050).

If the validity of the real estate purchase information is not authenticated (for example, the real estate purchase information read out from the real estate purchase contract information is different from the real estate sales information in the real estate contract information storage area of the real estate sales management D / B 145). The server 100 requests the buyer terminal 200b to modify the real estate purchase information (2060), and the buyer terminal 200b performs the process of FIG. Correct the buy information.

On the other hand, if the validity of the real estate purchase information is authenticated (2055), the server 100 receives the buyer information (for example, the validity of the buyer information read) from the real estate purchase contract information, the buyer of the real estate contract information storage area. In addition to storing in the information field area (2065), by storing the buyer's terminal 200b electronically signed real estate purchase contract information in the buyer authentication information storage area of the real estate sales management D / B (145), When a dispute arises over the real estate to be sold, the ground for resolving the dispute is provided through the real estate purchase contract information digitally signed by the buyer.

20b shows that after performing the process of FIG. 20a as described above, the real estate sales contract information is transmitted to the seller terminal 200a and / or the buyer terminal 200b and outputted, and the seller terminal 200a and / or Alternatively, a predetermined seller authentication information and / or a buyer authentication information for efficiently managing the real estate sale contract is received from the buyer terminal 200b and stored in the seller authentication information storage area and / or the buyer authentication information storage area.

After the real estate sales contract information is stored in the real estate sales management D / B 145 through the process as shown in FIG. 20A, the server 100 may perform a server-side web method and / or a hybrid web method and / or a client-side web. Transmits the real estate sales contract information to the seller terminal 200a in at least one of a method and / or an electronic document reception based dedicated program method and / or a data reception based dedicated program method (2075a), and the seller terminal. (200a) generates a predetermined seller authentication information by electronically signing the seller information, the buyer information and the real estate registration information from the real estate sales contract information through the seller certificate (2080a), and encrypts the electronically signed seller authentication information. The server 100 to the server 100, and the server 100 transmits the seller authentication information to the real estate agent. By storing in the seller authentication information storage area of the management D / B 145 (2090a), the confidentiality, authentication, integrity and non-repudiation of the real estate sales contract information that the seller and the buyer finally negotiated through the server 100 If there is a dispute about the real estate for sale, thereby providing a basis for resolving the dispute through the real estate sales contract information digitally signed by the seller.

In addition, after the real estate sales contract information is stored in the real estate sales management D / B 145 through the process as shown in Figure 20a, the server 100 is a server-side web method and / or hybrid web method and / or client The real estate sales contract information is transmitted to the buyer terminal 200b in at least one or more ways from a side web method and / or an electronic document reception based dedicated program method and / or a data reception based dedicated program method (2075b), and The buyer terminal 200b electronically signs the buyer information, the seller information, and the real estate registration information through the buyer certificate in the real estate sales contract information to generate a predetermined buyer authentication information (2080b), and obtains the electronically signed buyer authentication information. The encryption is transmitted to the server 100 (2085b), and the server 100 transfers the buyer authentication information to the floating point. By storing in the buyer authentication information storage area of the sales management D / B 145 (2090b), confidentiality, authentication, integrity and non-repudiation of the real estate sales contract information that the buyer and the buyer finally negotiated through the server 100 In this case, if a dispute arises over the real estate subject to sale, a ground for resolving the dispute is provided through the real estate sales contract information digitally signed by the buyer.

21 is a view showing a preferred functional configuration of a real estate sales contract system according to another embodiment of the present invention.

In more detail, FIG. 21 illustrates a system for relaying and managing a real estate sales contract between at least one real estate seller and a buyer through a predetermined real estate transaction terminal 200c in the server 100, and the server 100 It is connected with the real estate transaction terminal 200c through a predetermined network 175 and / or communication means 175, and associated with a predetermined identification server 150 for identifying the seller and / or buyer, A real estate registration server connected to a predetermined intermediary information server 2100 to confirm the intermediary qualification, linked to a real estate information server 155 providing the target real estate information, and providing the target real estate registration information ( 160 is a view showing a preferred embodiment for the case connected to.

Referring to FIG. 21 according to a preferred embodiment of the present invention, the real estate sales contract system includes a real estate transaction terminal 200c used by an intermediary for brokering real estate sales, an electronic signature and encryption / decryption for the real estate sales contract, and / Or a certificate authority 165 of a public key infrastructure (PKI) included in an electronic envelope, a directory server 170 that stores and manages public key information for at least one or more intermediaries and / or sellers and / or buyers, An identification server 150 that provides an identity verification function for the seller and / or the buyer, an intermediary information server 2100 that provides a qualification verification function for the intermediary, and the selling target (or the seller being sold from the seller's point of view). Or a real estate information server 155 that provides real estate information from a buyer's point of view, and a sale target (or seller's target from a seller's point of view), It is characterized in that it comprises a real estate registration and server 160 that provides a number of targets) estate properties in the fixer position, the server 100 that provides a real estate sales contract service by interworking with the component.

The real estate transaction terminal 200c includes a wired terminal and / or a wireless terminal capable of connecting a communication channel for real estate sales contract with the server 100 through a predetermined network 175 and / or communication means 175. The real estate transaction terminal 200c may be implemented when the seller terminal 200a and the buyer terminal 200b of FIG. 1 are realized in one terminal, or a broker terminal provided in a predetermined real estate brokerage agency. In the following embodiments, the real estate transaction terminal 200c will be described as an intermediary terminal provided in a predetermined real estate agency. However, the real estate transaction terminal 200c is not limited to the intermediary terminal.

Those skilled in the art to which the present invention pertains will clearly understand the technical features of the certification authority 165 and the directory server 170 of the public key infrastructure (PKI). Is omitted. In addition, since the identification server 150, the real estate information server 155 and the real estate registration server 160 has been described with reference to FIG.

The intermediary information server 2100 is characterized in that the server 100, in processing the real estate sale contract, to prove the qualification of the intermediary for the intermediary, real estate brokerage association server, the Ministry of Construction and Transportation Server, the Industrial Human Resources Corporation server At least one or more, or preferably comprises a separate server for managing at least one or more intermediaries in cooperation with the server 100 and real estate sales service.

Referring to FIG. 21, the server 100 includes a receiver 105 for receiving predetermined information from the real estate transaction terminal 200c and a transmitter 115 for transmitting predetermined information to the real estate transaction terminal 200c. ), The identification information unit 110 for confirming the identity of the seller and / or buyer in conjunction with the identification server 150, and the real estate information server 155 and / or real estate registration server 160 Real estate information contracting unit 120 for extracting real estate information and / or real estate registration information for the seller-owned real estate in conjunction with the real estate sale contract information and / or received from the real estate transaction terminal (200c) through the receiving unit 105 Information analysis unit 125 for analyzing real estate purchase contract information and / or real estate sales contract information, and the existence of the real estate sale contract information and / or real estate purchase contract information and / or real estate sales contract information. And an information management unit 135 that manages a real estate sales management D / B 145 for storing at least one information related to a real estate sales contract, and certifying the surname. Preferably, the information manager 135 further includes a storage 140 that temporarily stores predetermined information in the process of managing information related to the real estate sale contract.

The receiving unit 105 receives predetermined seller identification information (for example, seller's name and social security number, or seller's certificate password) from the real estate transaction terminal 200c, or receives real estate sale contract information. Receive predetermined buyer identification information (for example, buyer name and social security number, or buyer certificate password) from the real estate transaction terminal 200c, or receive real estate purchase contract information, the real estate transaction terminal 200c Receive predetermined broker qualification information (for example, intermediary license number, or intermediary certificate password), or real estate sales contract information.

According to the embodiment of the present invention, the receiving unit 105 provides the seller identification information and / or the buyer identification information received from the real estate transaction terminal 200c to the identification information unit 110. And / or it is preferable to process the identification confirmation for the buyer, the predetermined intermediary qualification information received from the real estate transaction terminal (200c) is provided to the identification information information unit 110 to prove the intermediary qualification for the intermediary Preferably, the real estate sale contract information and / or real estate purchase contract information received from the real estate transaction terminal (200c) is provided to the information analysis unit 125 and / or authentication unit 130 to the real estate purchase contract Analyze the information and / or real estate sale contract information, or verify the validity of the real estate contract It is desirable to.

According to the exemplary embodiment of the present invention, the receiving unit 105 receives the real estate sale contract information and / or real estate purchase contract information from the real estate transaction terminal 200c, and the real estate sale contract information and / or real estate purchase contract The information is preferably received by a predetermined encryption / decryption method, or received in an electronic envelope.

The transmission unit 115 transmits the identification result information confirmed by the identification information unit 110 to the real estate transaction terminal 200c, and / or the owner possession extracted by the real estate information unit 120. Real estate information and / or real estate registration information is characterized in that for transmitting to the real estate transaction terminal (200c).

According to the exemplary embodiment of the present invention, the seller 115 transmits the seller owned real estate information and / or real estate registration information to the real estate transaction terminal 200c, and the seller owned real estate information and / or real estate registration information. Is preferably transmitted in a predetermined encryption / decryption method, or transmitted in an electronic envelope.

The identification information unit 110 interoperates with the identification server 150 based on predetermined seller identification information received from the real estate transaction terminal 200c through the receiving unit 105 to identify the seller. Confirm and / or receive identification result information for the seller from the identification server 150, and / or receive from the real estate transaction terminal 200c through the reception unit 105. Confirms the identity of the buyer by interworking with the identification server 150 based on the predetermined buyer identification information, and / or receives identification information of the buyer from the identification server 150. And / or predetermined broker credential request information received from the real estate transaction terminal 200c through the receiving unit 105. Half to is characterized in that in conjunction with the vehicle information server 2100 make the agent qualified for the vehicle.

The real estate information unit 120 interoperates with the real estate information server 155 and / or the real estate registration server 160 based on the seller identification result information of the identification information unit 110 to determine a predetermined price for the seller owned real estate. It is characterized in that the extraction of real estate information and / or real estate registration information, as described in Figure 1 above.

The information analyzing unit 125 confirms the electronic signature of the seller with respect to predetermined real estate selling contract information received from the real estate transaction terminal 200c through the receiving unit 105, and at least one from the real estate selling contract information. And the electronic signature of the buyer with respect to predetermined real estate purchase contract information received from the real estate transaction terminal 200c through the reception unit 105, And reading at least one real estate purchase related information from the real estate purchase contract information, confirming an electronic signature of the broker for predetermined real estate sales contract information received from the real estate transaction terminal 200c, Read at least one real estate brokerage related information from the real estate sales contract information Characterized in that.

The authentication unit 130 confirms the validity of the real estate sale contract information received from the real estate transaction terminal 200c, and / or the validity of the real estate purchase contract information received from the real estate transaction terminal 200c. Or confirm the validity of the real estate sales contract information received from the real estate transaction terminal (200c).

The information manager 135 stores and manages at least one seller's authentication information, buyer's authentication information, intermediary authentication information and real estate sales contract information related to the real estate sales contract in a predetermined real estate sales management D / B 145. It features.

The real estate sales management D / B 145 may include a real estate contract information storage area for storing real estate sales contract information per real estate sales contract in order to manage the real estate sales contract.

According to the implementation method of the present invention, the real estate sales management D / B 145 when the real estate sales contract information is electronically signed from a predetermined real estate transaction terminal (200c) receives the real estate sales contract information as the seller authentication information A seller authentication information storage area for storing and a buyer authentication information storage area for storing the real estate purchase contract information as the buyer authentication information when the electronically signed real estate purchase contract information is received from a predetermined real estate transaction terminal 200c; It is preferable that the intermediary authentication information storage area for storing the predetermined real estate sales contract information received electronically signed from the real estate transaction terminal 200c as the intermediary authentication information.

22 is a diagram showing a real estate sales contract information structure according to an embodiment of the present invention.

More specifically, FIG. 22 illustrates real estate sales contract information transmitted from the intermediary terminal to the server when the real estate transaction terminal 200c is an intermediary terminal.

Referring to FIG. 22, there is shown a preferred structure of real estate sales contract information using broker information and real estate registration information as basic fields, and seller information, buyer information, real estate sale information, and special information as extension fields. The contract information may be in the form of a predetermined data block or in the form of an electronic document.

In FIG. 22, the position of each information included in the real estate sales contract information may be changed according to the intention of the skilled person, and the present invention is not limited thereto. In addition, although the basic field of the real estate sales contract information in FIG. 22 basically includes the broker information, the seller information and / or the buyer information may be moved to the basic field according to the intention of the person skilled in the art.

23 is a diagram showing an intermediary information structure of real estate sales contract information according to an embodiment of the present invention.

In more detail, Fig. 23 shows the broker's office location information, office name information, representative name and permit number information, and intermediary contact information (telephone / mobile phone) as basic fields, and the actual broker name for brokering the business registration number and the real estate transaction. And a preferred structure of intermediary information using the actual intermediary's social security number as an extension field, other than the seller information structure of the real estate contract information, see FIG. 5, and the buyer information structure, see FIG. The real estate registration information structure is referred to Figure 6, and the real estate sale information is referred to Figure 7.

Those skilled in the art to which the present invention pertains may change the basic field and extended field according to the intention of those skilled in the art, or may add new information reflecting the intention of those skilled in the art. For example, if the representative of the office and the intermediary are the same (there is only one intermediary in the office), the representative name of the basic field may be replaced with the intermediary name.

24 is a diagram showing an implementation method of transmitting real estate sales contract information to the server 100 according to an embodiment of the present invention.

More specifically, FIG. 24 illustrates that when the real estate transaction terminal 200c is an intermediary terminal, the predetermined real estate sale contract information, real estate purchase contract information, and real estate transaction contract information are separately transmitted to the server 100. It is about the implementation method.

According to the present embodiment, as shown in FIG. 24, before the real estate brokerage contract is transmitted from the real estate transaction terminal 200c to the server 100, the real estate transaction terminal 200c is connected to FIGS. 10a and / or 10b. The same process (for example, the seller terminal 200a of FIGS. 10a and / or 10b is replaced with the real estate transaction terminal 200c to electronically sign the property sale contract information and transmit it to the server 100) and / or the drawing 16a and / or the same process as Figure 16b (for example, the buyer terminal 200b of Figures 16a and / or 16b is replaced by the real estate transaction terminal 200c to electronically sign the real estate purchase contract information transmitted to the server 100 (2400-1), and / or after transmitting the real estate brokerage contract from the real estate transaction terminal 200c to the server 100, the real estate transaction terminal 200c is shown in FIG. 10a and / or Same process as in Figure 10b and / or It is preferable to perform a process as shown in FIGS. 16A and / or 18B (2450-1), whereby the real estate transaction terminal 200c separates the real estate sale contract information, the real estate purchase contract information, and the real estate sale contract information. Are separately transmitted to the server (100).

Referring to FIG. 24, the real estate transaction terminal 200c accesses the server 100 and inputs predetermined broker credential request information to the server 100 by transmitting it to the server 100 (2400). Initiate a real estate sales contract through the), it is preferable that the intermediary credential request information is transmitted in an encrypted web method, or transmitted in an encrypted manner through a dedicated program.

When the intermediary credential request information is received as described above, the server 100 confirms the real estate brokerage qualification for the intermediary in connection with the identification server 150 based on the intermediary credential request information (2405). .

According to the implementation method of the present invention, the credential method for the intermediary, the broker information request information from the server 100 to the intermediary information server 2100, the intermediary information server 2100 in the As to confirm the identity of the intermediary based on the credentials request information, it is preferable that the real estate transaction terminal 200c performs the identity verification process through the certification authority 165 in the certification process.

If the intermediary credential is not verified (eg, if the identity verification for the intermediary fails) (2410), the server 100 generates a predetermined intermediary credential error message and transmits it to the real estate transaction terminal 200c. And outputs 2415, terminating real estate brokerage services for the broker.

On the other hand, if the intermediary credential is verified (eg, if the identity verification for the intermediary is successful) (2410), the server 100 stores the intermediary credential information in the predetermined storage unit 140 (2420), As a result, in Fig. 28, a procedure for authenticating the validity of the broker information of the real estate sales contract information is easily and conveniently processed. Of course, the process of storing the intermediary credential information in the storage 140 may be omitted according to the intention of the person skilled in the art.

The server 100 transmits the result of the intermediary credential to the real estate transaction terminal 200c (2425), and the real estate transaction terminal 200c uses a predetermined real estate brokerage interface to provide a predetermined entry to the intermediary input item. Request to input information (2430), and if inputting predetermined information from the intermediary is completed (2435), the real estate transaction terminal (200c) is the broker information and real estate registration information and / or seller information and / or buyer information And / or generate real estate sales contract information including real estate sales information and / or special information (2440), and electronically sign the generated real estate sales contract information by using the intermediary certificate (2445). In step 2450, the electronic signature real estate sales contract information is transmitted to the server 100.

25 is a diagram showing an implementation method for transmitting real estate sales contract information in an electronic bag according to one implementation method of the present invention.

Referring to FIG. 25, the information transmission unit 265 generates a predetermined random secret key for encrypting the real estate sales contract information in a secret key method (2500), and uses the generated secret key to sell the real estate. The contract information is encrypted (2505), and the secret key that encrypts the real estate sales contract information is encrypted using the server public key (2510).

According to an embodiment of the present invention, the server public key is preferably extracted from a copy of the server public key received from the certification authority 165 on the network.

If the real estate sales contract information is encrypted with a predetermined secret key randomly generated as described above, and the secret key is encrypted through the server public key, the information transmission unit 265 encrypts the real estate sales contract information encrypted with the secret key. And a secret key encrypted with the server public key are transmitted to the server 100 through a predetermined network 175 and / or communication means 175 (2515).

The receiving unit 105 receives (2525) the real estate sales contract information encrypted with the secret key and the secret key encrypted with the server public key through the network 175 and / or the communication means 175, and with the server public key. By decrypting an encrypted secret key with the server private key (2530), extracting the secret key for decrypting the real estate transaction contract information (2535), and the server private key mounted on the server IC card and / or the wireless terminal. Alternatively, it is preferable to extract from the public certificate provided in the detachable IC chip.

When the secret key is extracted as described above, the receiving unit 105 decrypts the real estate sales contract information using the extracted secret key (2540), and extracts the real estate sales contract information encrypted with the secret key (2545). ), The extracted real estate sales contract information is valid real estate sales contract information transmitted from the information transmitter 265 and received by the receiver 105 through the network 175 and / or the communication means 175.

According to another exemplary embodiment of the present invention, the electronic envelope method as shown in FIG. 15 may be replaced by another type of secure communication method (for example, an encryption / decryption communication method) by a person skilled in the art. It is by no means limited.

FIG. 26 is a diagram illustrating an implementation method of transmitting real estate sales contract information to the server 100 according to an exemplary embodiment of the present invention.

In more detail, FIG. 26 illustrates that the real estate transaction terminal 200c generates a predetermined real estate sale contract information, a real estate purchase contract information, and a real estate sales contract information, electronically signs, connects them, and transmits them to the server 100. It's about how.

Referring to FIG. 26, when the real estate transaction terminal 200c accesses the server 100 and inputs predetermined broker credentials request information to the server 100 (2600), the server 100 The real estate brokerage qualification for the broker is checked in connection with the identification server 150 based on the broker credentials request information (2605).

If the intermediary credential is not verified (for example, if the identity verification for the intermediary fails) (2610), the server 100 generates a predetermined intermediary credential error message and transmits it to the real estate transaction terminal 200c. And outputs 2615, terminating real estate brokerage services for the broker.

On the other hand, if the intermediary credential is verified (eg, if the identity verification for the intermediary is successful) (2610), the server 100 stores the intermediary credential information in a predetermined storage unit 140 (2620), The mediator credential result is transmitted to the real estate transaction terminal 200c (2625), and the real estate transaction terminal 200c requests to input predetermined information to the mediator input item using a predetermined real estate brokerage interface. 2630, if the predetermined information input from the intermediary is completed (2635), the real estate transaction terminal 200c is the broker information and real estate registration information and / or seller information and / or buyer information and / or real estate sale information And / or generate predetermined real estate sales contract information including special information (2640), and encrypt the generated real estate sales contract information using the intermediary certificate. The digital signature (2645).

In addition, the real estate transaction terminal 200c replaces the seller terminal 200a of the process of FIGS. 9a and / or 9b and / or 9c and the process (1000 to 1040) of FIG. Generates information and electronically signs it through the seller certificate (2650), and purchases a predetermined real estate by replacing the buyer's terminal 200b in the process of FIGS. The contract information is generated and digitally signed through the buyer certificate (2655).

According to another exemplary embodiment of the present invention, the order of steps 2650 and 2655 may be changed, and the steps 2650 and 2655 may be performed before the present drawing 26 is performed.

When the electronically signed real estate sales contract information, real estate sales contract information, and real estate purchase contract information are generated as described above, the real estate transaction terminal 200c is the electronically signed real estate sales contract information, real estate sales contract information, and real estate purchase contract information. Encrypted data is transmitted to the server 100 (2660).

27A and 27B illustrate an implementation method of encrypting and transmitting real estate purchase contract information according to an implementation method of the present invention.

Referring to FIG. 27A, the information transmitting unit 265 connects real estate sales contract information, real estate sale contract information, and real estate purchase contract information to be transmitted through a predetermined network 175 and / or communication means 175. A predetermined message digest is generated through a one-way hash function (2700), and the digital signature is executed by encrypting the message digest with the buyer private key (2705), and the buyer private key is the buyer IC card 220-1. It is preferable to extract from the official certificate provided to the / / IC chip 220-2 and / or the memory unit 230.

In addition, the information transmission unit 265 generates a predetermined random secret key for encrypting the concatenated real estate sales contract information, real estate sale contract information and real estate purchase contract information (2700), and the concatenated (2715) encrypting the real estate sales contract information, the real estate sales contract information, the real estate purchase contract information and the copy of the certificate including the message digest encrypted with the buyer private key and the buyer public key through the generated private key, In addition, the secret key used for encryption is encrypted using the server public key (2720).

According to an embodiment of the present invention, the server public key is preferably extracted from a copy of the server public key received from the certification authority 165 on the network.

The real estate sales contract information, the real estate sales contract information, the real estate purchase contract information, the copy of the certificate encrypted with the buyer private key and the copy of the certificate including the buyer public key is linked and encrypted through the generated secret key, the secret When the key is encrypted through the server public key, the information transmitting unit 265 encrypts the real estate sales contract information, the real estate sale contract information, the real estate purchase contract information, and the buyer private key encrypted with the secret key. A copy of the certificate including the digest and the buyer public key is transmitted to the server 100 through the predetermined network 175 and / or the communication means 175 in association with the secret key encrypted with the server public key (2725). .

A copy of a certificate including the message digest and the buyer public key encrypted with the real estate sales contract information, real estate sale contract information, real estate purchase contract information, and the buyer private key encrypted with the secret key; and the secret encrypted with the server public key. When the key is received (2730), the receiving unit 105 decrypts the secret key encrypted with the server public key with the server private key (2735), so that the real estate sales contract information, real estate sales contract information, real estate purchase contract information and the Extracting the secret key for decrypting a copy of the certificate including the message digest encrypted with the buyer private key (2740), and extracting the server private key from a public certificate provided in the server (100) It is preferable.

When the secret key is extracted as described above, the receiving unit 105 encrypts the message digest encrypted with the real estate sale contract information, real estate sale contract information, real estate purchase contract information, and the buyer private key using the extracted secret key. By decrypting a copy of the certificate containing the buyer public key (2745), the message digest and the buyer public key encrypted with the real estate sales contract information and the real estate sales contract information, the real estate purchase contract information encrypted with the private key, and the buyer private key. Extract a copy containing the certificate.

The receiving unit 105 decrypts the message digest encrypted with the buyer private key through the buyer public key (2750), so that the real estate sales contract information, real estate selling contract information, and real estate buying contract in the information transmitting unit 265. The message digest generated and transmitted from the information is extracted (2755), and the received real estate sales contract information, real estate sales contract information, and real estate purchase contract information are provided through a one-way hash function identical to the information transmission unit 265. After generating a digest (2760), the generated message digest is compared with the decrypted message digest (2765) to verify validity of the received real estate sales contract information, real estate sales contract information, and real estate purchase contract information. .

If the generated message digest and the decrypted message digest coincide with each other (2770), the receiver 105 receives and processes the validity of the real estate sales contract information, the real estate sales contract information, and the real estate purchase contract information as being authenticated. Complete (2775). On the other hand, if the message digests do not match (2770), the receiver 105 treats the real estate sales contract information, the real estate sales contract information, and the real estate purchase contract information as invalid.

According to another embodiment of the present invention, the encryption / decryption scheme as shown in FIGS. 27A and 27B may be replaced by another type of secure communication method (for example, an electronic envelope communication method) by a person skilled in the art. The present invention is in no way limited.

28 is a diagram showing an implementation method of storing real estate sales contract information according to one embodiment of the present invention.

More specifically, FIG. 28 shows the real estate sales contract information, the real estate sales contract information, and the real estate purchase contract information received from the real estate transaction terminal 200c as shown in FIG. 24 or FIG. 26. The preferred method of storing real estate sales contract information in the real estate sales contract information and real estate purchase contract information, the process of storing the real estate sale contract information, see Figure 12, the process of storing the real estate purchase contract information Reference is made to FIGS. 20a and / or 20b.

Referring to FIG. 28, when the real estate sales contract information is received from the real estate transaction terminal 200c, the server 100 checks the electronic signature for the real estate sales contract information (2800).

According to an exemplary embodiment of the present invention, when the real estate transaction contract information is electronically signed by the real estate transaction terminal 200c in the same manner as the electronic signature of the property sale contract information in FIG. 8a, the server 100 Preferably, the electronic signature for the real estate sales contract information is verified by decrypting at least one or more information that is electronically signed by the intermediary private key among the real estate sales contract information with the intermediary public key, and the integrity of the electronic signature information. In order to further secure the information, if the real estate sales contract information includes information that is not encrypted with an intermediary private key, the server 100 applies a predetermined one-way hash function to the information decrypted with the intermediary public key to apply a predetermined message digest. Generated and matched with the decrypted information and not encrypted The information applied to the one-way hash function, and then generates a predetermined message digest, by comparing the message digest, to secure the integrity of the real estate sales contract information.

According to another exemplary embodiment of the present invention, when the real estate transaction contract information is electronically signed by the real estate transaction terminal 200c in the same manner as the electronic signature of the real estate sale contract information in FIG. 8b, the server 100 Decrypting at least one message digest encrypted with an intermediary private key from the real estate sales contract information with the intermediary public key, and at least one or more information corresponding to the message digest is the same one-way hash function as the real estate transaction terminal (200c). After generating a predetermined message digest by applying a, it is preferable to check the electronic signature for the real estate sales contract information by comparing the decrypted message digest and the generated message digest.

According to another exemplary embodiment of the present invention, when the real estate transaction contract information is electronically signed by the real estate transaction terminal 200c in the same manner as the electronic signature of the property sale contract information in FIG. 8c, the server 100 Decrypts at least one or more information and a message digest encrypted with an intermediary private key of the real estate sales contract information with the intermediary public key, the information corresponding to the decrypted message digest from the decrypted information of the real estate transaction terminal After generating a predetermined message digest by applying the same one-way hash function as 200c, it is preferable to check the electronic signature on the real estate sales contract information by comparing the message digest.

If the electronic signature for the real estate sales contract information is not confirmed (2805), the server 100 generates a predetermined error message for the real estate sales contract information and transmits it to the real estate transaction terminal 200c for output. 2810, the real estate brokerage contract service for the broker ends.

On the other hand, if the electronic signature for the real estate sales contract information is confirmed (2805), the server 100 compares the broker information read from the real estate sales contract information and the broker credentials information stored in the storage unit 140, The validity of the intermediary information is verified (2815).

When the broker credential information is not stored in the storage unit 140 according to another embodiment of the present invention, the server 100 confirms the validity of the broker information in association with the broker information server 2100. It is possible to

If the validity of the intermediary information is not authenticated (2820), the server 100 generates a predetermined error message for the real estate sales contract information and transmits it to the real estate transaction terminal (200c) and outputs (2810). Terminate the real estate brokerage contract service for the broker.

On the other hand, if the validity of the intermediary information is authenticated (2820), the server 100 searches the real estate sale management D / B (145) through the real estate registration information included in the real estate sale contract information and the real estate registration information Confirm the predetermined real estate sales contract information, including (2825).

If the predetermined real estate sales contract information including the real estate registration information is not stored in the real estate sales management D / B 145 (2830), the server 100 performs the real estate sales management D / B 145. Allocating at least one real estate contract management-related storage area including a real estate contract information storage area and / or an intermediary authentication information storage area and / or a seller authentication information storage area and / or a buyer authentication information storage area for the object to be bought (2835).

On the other hand, if the predetermined real estate sales contract information including the real estate registration information is stored in the real estate sales management D / B 145 (2830), or if a storage area for storing predetermined real estate sales contract information is allocated ( 2835), the server 100 adds and stores intermediary information read from the real estate sales contract information (e.g., intermediary information whose validity is verified) in the intermediary information field area of the real estate contract information storage area (2840), When the real estate transaction contract information, which is electronically signed by the real estate transaction terminal 200c, is stored in the intermediary authentication information storage area of the real estate transaction management D / B 145 (2845), when a dispute arises about the target real estate, The basis for resolving the dispute is provided through the real estate sales contract information digitally signed by the broker.

According to the embodiment of the present invention, the real estate transaction terminal 200c is the seller information and the buyer in the seller authentication information storage area of the real estate sales management D / B 145 on behalf of the seller terminal 200a of Figure 20b It is preferable to perform the process of storing the predetermined seller authentication information electronically signed information and real estate registration information through the seller certificate, and also on behalf of the buyer terminal 200b of FIG. It is preferable to perform the process of storing the predetermined buyer authentication information by electronically signing the buyer information, the seller information, and the real estate registration information through the buyer certificate in the buyer authentication information storage area of 145.

29 is a view showing the structure of the real estate contract information storage area of the real estate sales management D / B (145) according to an embodiment of the present invention.

In FIG. 29, the real estate contract information storage area preferably includes a storage area for storing predetermined real estate sales contract information, and at least one storage according to the intention and / or expansion of a business area of a person skilled in the art of implementing the present invention. It is possible to further comprise a region.

Referring to FIG. 29, a storage area for storing real estate sales contract information of the real estate contract information storage area includes a real estate property information field area, a real estate sale information field area, at least one seller information field area, and at least one buyer A field area, an intermediary information field area and / or a rider information field area.

According to an embodiment of the present invention, the real estate registration information field region includes real estate registration information of real estate sale contract information received from the seller terminal 200a and real estate registration of real estate purchase contract information received from the buyer terminal 200b. When the information and / or real estate registration information of the real estate sales contract information received from the real estate transaction terminal 200c match, it is preferable to store the real estate registration information as real estate registration information of the real estate sales contract information.

The real estate sale information field region may include real estate sale information of real estate sale contract information received from the seller terminal 200a and real estate purchase information of real estate purchase contract information received from the buyer terminal 200b. Preferably, the real estate selling information and the real estate buying information are stored as real estate selling information of the real estate sales contract information, and the union of the real estate selling information and the real estate buying information is stored according to an implementation method, and / or the It is preferable to store the real estate sales information of the real estate sales contract information received from the real estate transaction terminal (200c).

In addition, the seller information field area stores the seller information of the real estate selling contract information received from the seller terminal 200a and / or the seller information of the real estate trading contract information received from the real estate transaction terminal 200c. And / or the buyer information field area stores buyer information of the real estate purchase contract information received from the buyer terminal 200b and / or buyer information of the real estate sales contract information received from the real estate transaction terminal 200c. Preferably, and / or the intermediary information field area stores intermediary information of real estate sales contract information received from the real estate transaction terminal 200c.

The special information field may include the special contract information of the real estate selling contract information received from the seller terminal 200a and the special information of the real estate buying contract information received from the buyer terminal 200b. It is preferable to store the information as special information of the real estate sales contract information, or to store the intersection of the seller side special information and the buyer side special information, and / or the real estate sale received from the real estate transaction terminal 200c. It is desirable to store the rider information of the contract information.

According to the present invention, at least one or more real estate sellers and buyers automatically determine the identity of the real estate transaction party online, while efficiently determining the content of the real estate contract, and the confidentiality, authentication, integrity and By automatically securing the non-repudiation, there is an advantage in the convenience of directly handling the real estate contract that can effectively deal with the disputes occurring after the sale or sale of the real estate.

According to the present invention, when at least one or more real estate sellers and buyers automatically check the relevant information necessary for the real estate transaction through a predetermined intermediary terminal when the real estate brokerage transaction through the real estate agent, there is an advantage of efficiently processing the real estate transaction .

According to the present invention, when at least one real estate seller and the buyer is a real estate brokerage transaction through a real estate agent, if the ownership of the real estate to be sold is given to a plurality of owners, some of the plurality of real estate owners are confidential through online There is an advantage in processing real estate transactions without visiting the real estate agent, while ensuring certification, integrity and non-repudiation.

Claims (97)

Real estate seller terminal for transmitting identification information; Using the identification information of the seller from the real estate seller terminal to determine whether the real estate seller can perform legal acts, and the real estate seller is at least one of the limited payers, insolvents and minors prescribed by law. An identity verification server for confirming whether the agent satisfies the legal conditions that can represent the legal act of the property seller when the property is sold; A real estate transaction server that determines whether there is an error in identification of the real estate seller in connection with the identification server based on the identification information; And At least one real estate information owned by the real estate seller that receives the real estate seller's identity information from the real estate transaction server and corresponds to the identity information of the real estate seller as the identification of the real estate seller succeeds in the real estate transaction server; Includes; real estate information server for transmitting to the real estate transaction server, The real estate transaction server, Providing at least one real estate information owned by the real estate seller received from the real estate information server to the seller terminal, When the specific real estate information to be sold is selected from the at least one real estate information owned by the real estate seller through the real estate seller terminal, the selection information of the selected specific real estate of the real estate seller terminal is received; Providing display information of the real estate corresponding to the selection information to the real estate seller terminal, The real estate seller terminal outputs at least one of electronic documents and webpages in which the display information of the real estate has been previously input, and includes seller information input through the real estate seller terminal through an input means and payment method for real estate sales. On-line real estate, characterized in that if the real estate sale contract information including at least one or more of the real estate sale information and special information is transmitted in the electronic document or provided through the web page, after receiving this information, it is stored in a storage medium Trading system. A real estate seller terminal providing identification information of the real estate seller and real estate location information for sale; Using the identification information of the seller from the real estate seller terminal to determine whether the real estate seller can perform legal acts, and the real estate seller is at least one of the limited payers, insolvents and minors prescribed by law. An identity verification server for confirming whether the agent satisfies the legal conditions that can represent the legal act of the property seller when the property is sold; And The identification information of the seller of the real estate is determined in connection with the identification server on the basis of the identification information, and when the identification of the real estate seller succeeds, the storage medium stores and manages the registration information. A real estate transaction server extracting real estate registration information corresponding to the real estate location information and providing the real estate registration information to the real estate seller terminal; The real estate seller terminal, A real estate sale contract including at least one of electronic documents and webpages in which real estate registration information provided by the real estate transaction server is input, and including seller information, real estate transaction payment method, and special information entered through an input means. Send information through at least one of electronic documents and web pages, The real estate transaction server, When the real estate seller terminal transmits the real estate selling contract information in an electronic document, the electronic document is stored in a database for storing real estate selling contract information, or When the real estate seller terminal transmits the real estate selling contract information to the electronic document, the real estate registration information area, the real estate seller information area, the real estate selling information area including the real estate sales payment method, and the real estate contract information area of the electronic document. Extract and store at least one information entered in each data field provided in a database for storing real estate sale contract information; or When the real estate seller terminal provides the real estate sale contract information through a web page, at least one real estate selling information and real estate specialty information including the provided real estate registration information, real estate seller information, real estate sales payment method, and the like Online real estate transaction system, characterized in that for storing in each data field provided in the database for sale contract information storage. Through the input means, the electronic documents and webpages provide real estate seller contract information including at least one real estate seller identification information, property information of the property to be sold, real estate sale information including special payment information, and special information. Real estate seller terminal for transmitting through any one of; Using the identification information of the seller from the real estate seller terminal to determine whether the real estate seller can perform legal acts, and the real estate seller is at least one of the limited payers, insolvents and minors prescribed by law. An identity verification server for confirming whether the agent satisfies the legal conditions that can represent the legal act of the property seller when the property is sold; And On the basis of the identification information, in connection with the identification server to determine whether the identification of the seller of the real estate error, and as the identification of the real estate seller succeeds, When the real estate seller terminal transmits the real estate selling contract information in an electronic document, the electronic document is stored in a database for storing real estate selling contract information, or When the real estate seller terminal transmits the real estate selling contract information to the electronic document, the real estate registration information area, the real estate seller information area, the real estate selling information area including the real estate sales payment method, and the real estate contract information area of the electronic document. Extract and store at least one information entered in each data field provided in a database for storing real estate sale contract information; When the real estate seller terminal transmits the real estate selling contract information through a web page, at least one real estate selling information and real estate specialty information including the provided real estate registration information, real estate seller information, real estate sales payment method, and the like On-line real estate transaction system comprising a; real estate transaction server for storing in each data field provided in the database for sale contract information storage. At least one real estate seller identification information, real estate buyer identification information, real estate buyer registration information, real estate sales information including a payment method of the real estate to be sold, and special contract information entered through the input means. A real estate transaction terminal for transmitting real estate sales contract information through at least one of an electronic document and a web page; Using the identification information of the real estate seller and the real estate buyer identification information provided from the real estate transaction terminal, the real estate seller and the real estate buyer can perform legal acts, and the real estate seller and the real estate buyer At least one of the limited limiter, the indictor, and the minor, and if the sale of the property is made through an agent, whether the agent of the property seller satisfies the legal conditions for representing the legal act of the property seller, and the agent of the property buyer. An identity verification server for confirming whether a legal condition that can represent the legal act of the real estate buyer is satisfied; And Determine whether there is an error in identification of the real estate seller and the real estate buyer on the basis of the identification information of the real estate seller and the identification information of the real estate buyer; As the identification of the property seller succeeds, When the real estate transaction terminal transmits the real estate sale contract information in an electronic document, the electronic document is stored in a database for storing real estate sale contract information, or When the real estate transaction terminal transmits the real estate sale contract information in an electronic document, the real estate transaction information area including the real estate registration information area, real estate seller information area, real estate buyer information area, and real estate sales payment method of the electronic document. Extracting at least one information input in the real estate rider information area and storing the extracted information in each data field provided in the database for storing real estate sale contract information; When the real estate transaction terminal transmits the real estate sale contract information through a web page, at least one real estate transaction information including real estate registration information, real estate seller information, real estate transaction payment method, and real estate contract information is extracted and sold. On-line real estate transaction system comprising a; real estate transaction server for storing in each data field provided in the database for storing contract information. In connection with a real estate seller terminal, a real estate buyer terminal and a real estate transaction terminal, real estate seller identification information, real estate buyer identification information, real estate registration information, including real estate selling information and special payment information including payment method for real estate payments Receiving unit for receiving real estate contract information; And And a real estate information management unit for storing the real estate sales contract information in the form of an electronic document or storing each information included in the real estate sales contract information in each data field provided in the database for storing real estate sales contract information. The real estate information management unit checks whether the real estate seller and the real estate buyer can perform legal acts using identification information of the real estate seller provided from the real estate seller terminal and identification information of the real estate buyer provided from the real estate buyer terminal. And a law in which the agent of the real estate seller can represent the legal act of the real estate seller when the real estate seller and the real estate buyer sell the real estate through at least one of the limited settler, the monetary investor and the minor set by law. Of the real estate seller and the real estate buyer in connection with an identification server for verifying that a certain condition is satisfied and whether the agent of the real estate buyer satisfies the legal conditions for the legal act of the real estate buyer. As the determination of whether the original resolution errors successful online real estate transaction devices on the network, characterized in that the save of the real estate sales agreement. delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete

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