KR20230011178A - Method for supporting establishment and sharing of historical information of building based on distributed ledger of blockchain networks and historical information trading server using the same - Google Patents

Abstract

Disclosed are a method for trading building life cycle information based on a blockchain network, and a life cycle information transaction server using the same. The method may include the steps of: (a) updating specific life cycle information for a specific building or generating the specific life cycle information for the specific building; and (b) transmitting a decryption key for decrypting the encrypted second specific history information included in the second specific history information transaction to a second user so that the second user can acquire the second specific history information.

Description

Method for supporting establishment and sharing of building life cycle information based on distributed ledger of blockchain network and life cycle information transaction server using the same AND HISTORICAL INFORMATION TRADING SERVER USING THE SAME}

The present invention relates to a method for trading building life cycle information and a life cycle information trading server using the same, and more particularly, to a blockchain network for generating building life cycle information and preventing forgery and alteration of building life cycle information. It relates to a method for supporting construction and sharing of building life cycle information using a distributed ledger and a life cycle information transaction server using the same.

Building life cycle information is information related to the overall life cycle of a building, encompassing all information from all stages of the life cycle of a building, such as from planning/design to demolition. It includes destruction information, transaction information, space utilization information, building use approval information, etc.

In relation to such life cycle information of buildings, building use approval information under the Building Act is stored in the server of the Ministry of Land, Infrastructure and Transport called "Seumteo", and maintenance inspection information under the Building Management Act is stored under the Ministry of Land, Infrastructure and Transport called "Building Lifetime History Management System". It is stored on the server, and in order to access the information, a separate information disclosure request is required, and even if the information disclosure request is made, only a small part of the information can be accessed. There was a falling problem.

Therefore, there is a need for improvement measures to increase accessibility to life cycle information of buildings including history information on various buildings and to enable active transactions of life cycle information of buildings.

The object of the present invention is to solve all of the above problems.

Another object of the present invention is to improve accessibility to life cycle information of a building.

In addition, another object of the present invention is to induce activation of transactions of life cycle information of buildings by constructing a reasonable compensation system for life cycle information of buildings.

In addition, another object of the present invention is to prevent forgery and alteration of life cycle information of a building based on a blockchain network.

In order to achieve the object of the present invention as described above and realize the characteristic effects of the present invention described later, the characteristic configuration of the present invention is as follows.

According to one aspect of the present invention, in a method for trading building life cycle information based on a blockchain network, (a) history information on each building corresponding to the life cycle of each building is encrypted, Specific for registering first specific history information for a specific building from a first user in a state where history information transactions are registered in a distributed ledger of a blockchain network and managed as respective life cycle information for each building. History information registration request - The specific history information registration request is a specific building ID corresponding to the specific building, the first specific history information about the specific building, and the first specific history information using a first user private key When is obtained, the life cycle information transaction server, which is one of the blockchain nodes constituting the blockchain network, is included in the specific history information registration request. When the first user signature value is verified by verifying the first user signature value, the first specific history information is obtained by using the specific building ID, specific metadata corresponding to the first specific history information, and a first encryption key. A first server signature value obtained by signing at least one of the encrypted first specific history information, the first time stamp, the encrypted first specific history information, and the first time stamp with the private key of the life cycle information transaction server. , Information on a first purchase cost for purchasing the first specific history information - The information on the first purchase cost is an amount corresponding to the first purchase cost, a receiving address for receiving the first purchase cost and at least one specific transmission address for transmitting the received first purchase cost, and a settlement smart contract for settling the first purchase cost. The settlement smart contract includes a purchase cost for purchasing history information. The receiving address for receiving and the purchase received by the receiving address It includes at least one transmission address for transmitting the cost, and when the purchase cost is received to the receiving address according to a preset contract, the purchase cost is transmitted to the at least one transmission address, and sales related to the sale of history information At least one of the blockchain nodes by generating a first specific history information transaction including - a script for registering a transaction in the distributed ledger, and broadcasting the first specific history information transaction to the blockchain network. Have a mining node generate a block chain block including the first specific history information transaction, and register the block chain block including the first specific history information transaction in the distributed ledger by a distributed agreement of the block chain nodes. updating specific life cycle information for the specific building by doing so, or generating the specific life cycle information for the specific building; and (b) when a search request for the specific life cycle information corresponding to the specific building is obtained from the second user, the life cycle information transaction server uses the specific building ID corresponding to the specific building to distribute the information. Acquiring specific history information transactions corresponding to the specific building ID including the first specific history information transaction registered in the ledger to enable the second user to check the specific life cycle information for the specific building; A second purchase cost for purchasing second specific history information included in a second specific history information transaction among the specific history information transactions corresponding to the specific life cycle information for the specific building by the second user By being transmitted to the receiving address, it causes the settlement smart contract to transmit the second purchase cost to at least one sending address corresponding to the second specific history information according to the preset contract, and for the second specific history information By broadcasting a specific sales transaction to the blockchain network, the at least one mining node among the blockchain nodes generates a blockchain block including the specific sales transaction, and by a distributed agreement of the blockchain nodes When at least a part of the second purchase cost for the second specific history information is received as the address of the life cycle information transaction server by registering the blockchain block including the specific sales transaction in the distributed ledger, the second specific history information Supporting the second user to acquire the second specific history information by transmitting a decryption key for decrypting the encrypted second specific history information included in the history information transaction to the second user; including A method is disclosed.

As an example, (c) the second specific processing history information generated by reprocessing the second specific history information by the second user is stored in the distributed ledger of the blockchain network as the specific life cycle information for the specific building. Specific processing history information registration request for registration - The specific processing history information registration request includes the specific building ID corresponding to the specific building, the second specific processing history information for the specific building, and the second specific processing history information includes a second user signature value signed using the second user private key - is obtained from the second user, the life cycle information transaction server, the second user included in the specific processing history information registration request When the second user signature value is verified by verifying the user signature value, the second specific processing history information is obtained by using the specific building ID, specific processing meta data corresponding to the second specific processing history information, and a second encryption key. A second server that signs at least one of the encrypted second specific processing history information, the second time stamp, the encrypted second specific processing history information, and the second time stamp with the private key of the life cycle information transaction server. signature value, information on a third purchase cost for purchasing the second specific processing history information - the information on the third purchase cost is an amount corresponding to the third purchase cost, a second specific processing history information transaction including the receiving address for the third purchase cost and at least one sending address for transmitting the received third purchase cost, and the settlement smart contract for settling the third purchase cost; and broadcasting the second specific processing history information transaction to the blockchain network to cause the at least one mining node to generate a blockchain block including the second specific processing history information transaction, wherein the block By the distributed consensus of chain nodes Updating the specific life cycle information for the specific building by registering the block chain block including the second specific processing history information transaction in the distributed ledger.

As an example, in the step (a), the life cycle information transaction server encrypts the first specific history information through a digital rights management (DRM) server module linked to the life cycle information transaction server, 1 specific history information is generated, and in the step (b), when at least a part of the second purchase cost for the second specific history information is received as the address of the life cycle information transaction server, the life cycle information transaction server A, supporting the second user to decrypt the encrypted second specific history information through a DRM user module linked to the terminal of the second user to obtain the second specific history information. A method for doing so is disclosed.

As an example, the history information includes (i) each address information for each building, (ii) information about individual spaces in each building specified by at least one of a building, a building, a floor, and a room. (iii) weather information at a time corresponding to each of the history information, and (iv) at least some of image information for each type of work.

As an example, in step (b), the life cycle information transaction server causes the settlement smart contract to set the second purchase cost according to the preset contract according to the at least one transmission corresponding to the second specific history information. address, wherein the at least one transmission address corresponding to the second specific history information includes (i) the address of the life cycle information transaction server and (ii) at least one corresponding to the second specific history information. A method comprising the third user's address is disclosed.

As an example, the at least one transmission address corresponding to the second specific history information further includes at least one node address excluding the address of the life cycle information transaction server among the addresses of the blockchain nodes. A method for doing so is disclosed.

As an example, each of the life cycle information for each of the buildings includes at least one of architectural design drawings, construction management information, supervision information, building maintenance management information, evaluation information, space experience information, and real estate transaction information. A method characterized by doing is disclosed.

As an example, in the step (a), if the signature value of the first user is verified, the life cycle information transaction server transmits the first specific history information to the first user so that the first user can perform the first user transaction. The encrypted first specific history information is generated by encrypting the first specific history information using an encryption key of one user, and when the encrypted first specific history information is obtained from the first user, the first specific history information is generated. 1 a specific history information transaction is generated, and in step (b), if at least a part of the second purchase cost for the second specific history information is received as the address of the life cycle information transaction server, the life cycle information transaction The server transmits an encryption key of the third user for decrypting the encrypted second specific history information to the second user by allowing the third user corresponding to the second specific history information to be transmitted to the second user. A method characterized by supporting the acquisition of the second specific history information is disclosed.

According to another aspect of the present invention, a life cycle information trading server for trading building life cycle information based on a blockchain network, comprising: at least one memory for storing instructions; and at least one processor configured to execute the instructions, wherein the processor: (1) encrypts the history information about each building corresponding to the life cycle of each building into respective history information transactions; Request for registering specific history information for registering first specific history information for a specific building from the first user in a state registered in the distributed ledger of the blockchain network and managing each life cycle information for each building - The specific history information registration request is the first user who signed the specific building ID corresponding to the specific building, the first specific history information about the specific building, and the first specific history information using a first user private key. When - including a signature value is obtained, the first user signature value included in the specific history information registration request is verified, and when the first user signature value is verified, the specific building ID and the first specific history information Of the corresponding specific metadata, encrypted first specific history information obtained by encrypting the first specific history information using a first encryption key, a first time stamp, the encrypted first specific history information, and the first time stamp. A first server signature value that has signed at least one with the private key of the life cycle information transaction server, information on a first purchase cost for purchasing the first specific history information - the information on the first purchase cost, An amount corresponding to one purchase cost, a receiving address for receiving the first purchasing cost, and at least one specific sending address for transmitting the received first purchasing cost, and settlement of the first purchasing cost Settlement smart contract for - The settlement smart contract includes the receiving address for receiving the purchase cost for purchasing history information and at least one sending address for transmitting the purchase cost received to the receiving address, According to the set contract, the phrase is sent to the receiving address When every cost is received, the purchase cost is transmitted to the at least one transmission address, and a script for registering a sales transaction related to the sale of history information in the distributed ledger - generates a first specific history information transaction including; , broadcasting the first specific history information transaction to the blockchain network to cause at least one mining node of the blockchain nodes to generate a blockchain block including the first specific history information transaction, and the block By registering the blockchain block including the first specific history information transaction in the distributed ledger through a distributed agreement of chain nodes, the specific life cycle information for the specific building is updated, or the specific life cycle information for the specific building is registered. and (2) when a search request for the specific life cycle information corresponding to the specific building is obtained from the second user, the specific building ID corresponding to the specific building is registered in the distributed ledger. Acquiring specific history information transactions corresponding to the specific building ID including the first specific history information transaction to enable the second user to check the specific life cycle information for the specific building, wherein the second user A second purchase cost for purchasing second specific history information included in a second specific history information transaction among the specific history information transactions corresponding to the specific life cycle information for the specific building is transmitted to the reception address by This causes the settlement smart contract to transmit the second purchase cost to at least one transmission address corresponding to the second specific history information according to the preset contract, and to perform a specific sales transaction for the second specific history information. By broadcasting to the blockchain network, the at least one mining node among the blockchain nodes generates a blockchain block containing the specific sale transaction. and by registering the block chain block including the specific sale transaction in the distributed ledger by a distributed agreement of the block chain nodes, at least a part of the second purchase cost for the second specific history information is the life cycle information When received as the address of the transaction server, a decryption key for decrypting the encrypted second specific history information included in the second specific history information transaction is transmitted to the second user so that the second user can use the second specific history information. A life cycle information transaction server that performs a process for supporting information acquisition is disclosed.

As an example, (3) the processor takes the second specific processing history information generated by reprocessing the second specific history information by the second user as the specific life cycle information for the specific building of the blockchain network. Specific processing history information registration request for registration in the distributed ledger - The specific processing history information registration request includes the specific building ID corresponding to the specific building, the second specific processing history information for the specific building, and the second specific processing history information for the specific building. including a second user signature value for signing specific processing history information using a second user private key - if this is obtained from the second user, the second user signature value included in the specific processing history information registration request When the second user signature value is verified, the second specific processing history information is encrypted using the specific building ID, specific processing metadata corresponding to the second specific processing history information, and a second encryption key. A second server signature value obtained by signing at least one of the encrypted second specific processing history information, the second time stamp, the encrypted second specific processing history information, and the second time stamp with the private key of the life cycle information transaction server; Information on a third purchase cost for purchasing second specific processing history information - The information on the third purchase cost includes an amount corresponding to the third purchase cost, the receiving address for receiving the third purchase cost and at least one sending address for transmitting the received third purchase cost, and generating a second specific processing history information transaction including the settlement smart contract for settling the third purchase cost; Broadcasting the second specific processing history information transaction to the blockchain network causes the at least one mining node to generate a blockchain block including the second specific processing history information transaction, and distributes the blockchain nodes. By agreement, the above second specific A process of updating the specific life cycle information for the specific building by registering a blockchain block including a processing history information transaction in the distributed ledger; a life cycle information transaction server characterized in that it further performs is disclosed.

As an example, in the process (1), the processor encrypts the first specific history information through a digital rights management (DRM) server module linked to the life cycle information transaction server, and the encrypted first specific history information and, in the (2) process, when at least a part of the second purchase cost for the second specific history information is received as the address of the life cycle information transaction server, the second user is Disclosed is a life cycle information transaction server characterized in that it supports to acquire the second specific history information by supporting decryption of the encrypted second specific history information through a DRM user module linked to a terminal of the device.

As an example, the history information includes (i) each address information for each building, (ii) information about individual spaces in each building specified by at least one of a building, a building, a floor, and a room. A life cycle information trading server comprising at least a part of (iii) weather information at a time corresponding to each of the history information and (iv) image information for each type of work is disclosed. do.

As an example, the processor, in the process (2), causes the settlement smart contract to transmit the second purchase cost to the at least one transmission address corresponding to the second specific history information according to the preset contract. However, the at least one transmission address corresponding to the second specific history information includes (i) the address of the life cycle information transaction server and (ii) at least one third user corresponding to the second specific history information. A life cycle information transaction server comprising an address is disclosed.

As an example, the at least one transmission address corresponding to the second specific history information further includes at least one node address excluding the address of the life cycle information transaction server among the addresses of the blockchain nodes. A life cycle information transaction server is started.

As an example, each of the life cycle information for each of the buildings includes at least one of architectural design drawings, construction management information, supervision information, building maintenance management information, evaluation information, space experience information, and real estate transaction information. A life cycle information transaction server is disclosed.

As an example, in the (1) process, if the first user signature value is verified, the processor transmits the first specific history information to the first user so that the first user can encrypt the first user. To generate the encrypted first specific history information by encrypting the first specific history information using a key, and when the encrypted first specific history information is obtained from the first user, the first specific history information generate a transaction, and in the process (2), when at least a part of the second purchase cost for the second specific history information is received as the address of the life cycle information transaction server, corresponding to the second specific history information To enable the second user to obtain the second specific history information by causing the third user to transmit an encryption key of the third user for decrypting the encrypted second specific history information to the second user. A life cycle information transaction server characterized in that it supports is disclosed.

The present invention has an effect of improving accessibility to life cycle information of a building.

In addition, the present invention has the effect of inducing activation of transactions of life cycle information of buildings by constructing a reasonable compensation system for life cycle information of buildings.

In addition, the present invention has an effect of preventing forgery and alteration of life cycle information of a building based on a blockchain network.

The accompanying drawings for use in describing the embodiments of the present invention are only some of the embodiments of the present invention, and to those of ordinary skill in the art (hereinafter referred to as "ordinary technicians"), the invention Other drawings can be obtained based on these drawings without redundant work being done.
1 schematically illustrates a life cycle information transaction server and a block chain network for trading building life cycle information based on a block chain network according to an embodiment of the present invention;
2 schematically illustrates a method of transacting building life cycle information based on a blockchain network according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The following detailed description of the present invention refers to the accompanying drawings, which illustrate specific embodiments in which the present invention may be practiced in order to make the objects, technical solutions and advantages of the present invention clear. These embodiments are described in sufficient detail to enable a person skilled in the art to practice the present invention.

Also, throughout the description and claims of the present invention, the word "comprise" and variations thereof are not intended to exclude other technical features, additions, components or steps. Other objects, advantages and characteristics of the present invention will appear to those skilled in the art, in part from this description and in part from practice of the invention. The examples and drawings below are provided as examples and are not intended to limit the invention.

Moreover, the present invention covers all possible combinations of the embodiments shown herein. It should be understood that the various embodiments of the present invention are different from each other but are not necessarily mutually exclusive. For example, specific shapes, structures, and characteristics described herein may be implemented in one embodiment in another embodiment without departing from the spirit and scope of the invention. Additionally, it should be understood that the location or arrangement of individual components within each disclosed embodiment may be changed without departing from the spirit and scope of the invention. Accordingly, the detailed description set forth below is not to be taken in a limiting sense, and the scope of the present invention, if properly described, is limited only by the appended claims, along with all equivalents as claimed by those claims. Like reference numbers in the drawings indicate the same or similar function throughout the various aspects.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily practice the present invention.

1 schematically illustrates a life cycle information transaction server and a block chain network for trading building life cycle information based on a block chain network according to an embodiment of the present invention.

Referring to FIG. 1, the life cycle information transaction server 100 has a memory 110 for storing instructions for trading building life cycle information based on the blockchain network 200 and the instructions stored in the memory 110. Correspondingly, it may include a processor 120 that transacts building life cycle information based on the blockchain network 200. At this time, the life cycle information transaction server 100 may include a personal computer (PC), a mobile computer, a PDA/EDA, a mobile phone, a smart phone, a tablet, an IoT device, and the like.

Specifically, the lifecycle information transaction server 100 is typically a computing device (e.g., a computer processor, memory, storage, input and output devices, and other devices that may include components of existing computing devices; routers, switches). using a combination of electronic communication devices such as the like; electronic information storage systems such as network attached storage (NAS) and storage area networks (SAN)) and computer software (ie, instructions that allow a computing device to function in a particular way) to achieve the desired system performance.

In addition, the processor of the computing device may include hardware components such as a micro processing unit (MPU) or a central processing unit (CPU), a cache memory, and a data bus. In addition, the computing device may further include an operating system and a software component of an application performing a specific purpose.

However, it is not excluded that the computing device includes an integrated processor in which a medium for implementing the present invention, a processor, and a memory are integrated.

For reference, the life cycle information transaction server 100 may be a server corresponding to any one of the blockchain nodes constituting the blockchain network 200 or a server managing the corresponding blockchain node.

On the other hand, the blockchain network 200 includes at least one blockchain node (200-1, 200-2, ..., 200-n), each blockchain node (200-1, 200-2, ..., 200-n) may be a computing device including at least a memory and a processor.

At this time, the memory of the computing device may store instructions. Specifically, the instructions are computer software for causing at least one blockchain node constituting the blockchain network 200 to function in a specific way, such as a computer or other It can be stored in computer usable or computer readable memory that can be directed to programmable data processing equipment. The instructions are also capable of performing processes for executing functions shown in the figures.

In addition, the processor of the computing device may include hardware components such as a micro processing unit (MPU) or a central processing unit (CPU), a cache memory, and a data bus. In addition, the computing device may further include an operating system and a software component of an application performing a specific purpose.

However, it is not excluded that the computing device includes an integrated processor in which a medium for implementing the present invention, a processor, and a memory are integrated.

A process of transacting building life cycle information by the life cycle information transaction server 100 and the blockchain network 200 configured as described above will be described below with reference to FIG. 2 .

First, the history information on each building corresponding to the life cycle of each building is encrypted and registered as each history information transaction in the distributed ledger of the blockchain network to be managed as each life cycle information for each building. It can be.

At this time, each of the history information is information about individual spaces in each building specified by at least one of (i) each address information, (ii) building, number, floor, and room for each building. It may include at least some of spatial information, (iii) weather information at a time corresponding to each history information, and (iv) image information for each type of work.

In addition, each of the life cycle information for each building may include at least one of architectural design drawings, construction management information, supervision information, building maintenance management information, evaluation information, space experience information, and real estate transaction information. there is.

For example, supervision information is the address or GPS coordinates of the building where the inspection was performed, information on the specific space where the inspection was performed, the date and time of the inspection, a picture of the type of work at the site where the inspection was performed, the place where the inspection was performed, and the supervisor It may include at least a part of the supervision log written by the supervisor, checklist results prepared by the supervisor, and information about the supervisor.

In this way, in a state in which history information on each building is encrypted and registered as each history information transaction in the distributed ledger of the blockchain network and managed as each life cycle information for each building, a specific information from the first user A specific history information registration request for registering first specific history information on a building may be acquired (S201).

At this time, the specific history information registration request from the first user signifies the specific building ID corresponding to the specific building, the first specific history information for the specific building, and the first specific history information using the first user private key. It may include a first user signature value. Meanwhile, although the first user signature value is generated by signing the first specific history information using the first user private key, the first hash value obtained by hashing the first specific history information is converted into the first user private key. It is also possible to create a first user signature value by signing using the .

In addition, the life cycle information transaction server 100, which is one of the blockchain nodes constituting the blockchain network, can verify the first user signature value included in the specific history information registration request (S202). there is.

At this time, the life cycle information transaction server 100 decrypts the first user signature value using the first user public key corresponding to the first user private key to obtain specific history information included in the first user signature value, The first user signature value may be verified by confirming whether the specific history information obtained from the first user signature value matches the first specific history information transmitted by the first user. In addition, when the first user signature value is obtained by hashing the first specific history information, the life cycle information transaction server 100 converts the first user signature value using the first user public key. Decryption is performed to obtain a hash value included in the first user signature value, and it is determined whether the hash value obtained from the first user signature value matches a hash value obtained by hashing the first specific history information transmitted by the first user. 1 User signature value can be verified. On the other hand, the first user public key may be in a public state on the blockchain network, or may be in a state transmitted by the first user as being included in a specific history information registration request.

Then, when the first user signature value is verified, (i) specific building ID, (ii) specific metadata corresponding to the first specific history information, and (iii) first encryption key are used to encrypt the first specific history information. At least one of the encrypted first specific history information, (iv) the first time stamp, (v) the encrypted first specific history information and the first time stamp is signed with the private key of the life cycle information transaction server 100; 1 server signature value, (vi) information on a first purchase cost for purchasing the first specific history information, and (vii) a settlement smart contract for settling the first purchase cost; It can be created (S203).

In this case, the settlement smart contract may include a receiving address for receiving a purchase cost for purchasing history information and at least one sending address for transmitting a purchase cost received through the receiving address.

In addition, the settlement smart contract is a script that transmits the purchase cost to at least one sending address when the purchase cost is received to the receiving address according to a preset contract, and registers the sales transaction related to the sale of historical information in the distributed ledger. can

Meanwhile, the information on the first purchase cost may include an amount corresponding to the first purchase cost, a receiving address for receiving the first purchasing cost, and at least one specific transmission address for transmitting the received first purchasing cost (eg, a first specific transmission address).

In this case, the first specific transmission address may include (i) the address of the life cycle information transaction server 100 and (ii) the address of the first user corresponding to the first specific history information.

In addition, the first specific transmission address may further include at least one node address other than the address of the life cycle information transaction server 100 among addresses of blockchain nodes.

In addition, the life cycle information transaction server 100 broadcasts the first specific history information transaction to the blockchain network (S204), thereby causing at least one mining node among the blockchain nodes to include the first specific history information transaction. By generating a block chain block and registering the block chain block including the first specific history information transaction in the distributed ledger (S205) by a distributed agreement of block chain nodes, specific life cycle information for a specific building is updated, or specific It is possible to generate specific life cycle information for a building.

At this time, at least one mining node may check whether the first specific history information transaction is valid. That is, at least one mining node may verify whether the first specific history information transaction is written in a preset format, and in addition, verify the first server signature value. Verification of the first server signature value uses a public key corresponding to the private key of the life cycle information transaction server, and is similar to that described in the verification of the first user signature value, so a detailed description thereof will be omitted.

As described above, after the specific life cycle information is updated or the specific life cycle information is generated, when a search request for specific life cycle information corresponding to a specific building is obtained from the second user (S206), the life cycle information transaction server ( 100) searches for specific life cycle information using the specific building ID corresponding to the specific building (S207), and the specific history information transaction corresponding to the specific building ID including the first specific history information transaction registered in the distributed ledger It is possible to acquire (S208) the second user to check specific life cycle information on a specific building.

For example, the life cycle information transaction server 100 may provide meta data on a specific building to a second user so that the second user can check specific life cycle information on a specific building.

And, a second purchase cost for purchasing second specific history information included in a second specific history information transaction among specific history information transactions corresponding to specific life cycle information for a specific building by a second user is transmitted to the receiving address. Upon transmission (S209), the life cycle information transaction server 100 may cause the settlement smart contract to transmit the second purchase cost to at least one transmission address corresponding to the second specific history information according to a preset contract. .

At this time, the transmission address for transmitting the second purchase cost corresponding to the second specific history information, for example, the second specific transmission address is (i) the address of the life cycle information transaction server 100 and (ii) the second specific history An address of a third user corresponding to the information may be included.

In addition, the second specific transmission address may further include at least one node address other than the address of the life cycle information transaction server 100 among addresses of blockchain nodes.

In this way, by distributing a portion of the second purchase cost to the third user who generated the second specific history information, a plurality of users including the third user, that is, information creators, can provide various life cycle information to the blockchain network. can be updated.

In addition, by distributing a part of the second purchase cost to the remaining nodes excluding the life cycle information transaction server among the blockchain nodes, participation of the nodes in the blockchain network for registering the life cycle information can be activated.

For reference, (i) the first user requesting registration of the first specific history information and (ii) the third user requesting registration of the second specific history information purchased by the second user may be the same, but are not limited thereto, The first user and the third user may be different users.

In addition, the life cycle information transaction server 100 causes the settlement smart contract to generate (S210) a specific sales transaction for the second specific history information and broadcast it to the blockchain network (S211), thereby causing at least one of the blockchain nodes It is possible to have one mining node create a blockchain block including a specific sales transaction, and register the blockchain block including a specific sales transaction in a distributed ledger by a distributed agreement between blockchain nodes (S212).

Further, the life cycle information transaction server 100, when at least a part of the second purchase cost for the second specific history information is received as the address of the life cycle information transaction server 100, included in the second specific history information transaction A decryption key for decrypting the encrypted second specific history information is transmitted to the second user (S213) so that the second user can obtain the encrypted second specific history information using the decryption key for decrypting the second specific history information. By decoding, it is possible to support acquisition of second specific history information (S214).

Below, a specific embodiment of encrypting specific history information will be described.

For example, the life cycle information transaction server 100 may encrypt specific history information through a digital rights management (DRM) module.

That is, the life cycle information transaction server 100 may encrypt specific history information through a DRM server module linked to the life cycle information transaction server 100 to generate encrypted specific history information.

And, when at least a part of the purchase cost for the specific history information is received as the address of the life cycle information transaction server 100, the life cycle information transaction server 100 causes the second user who has purchased the specific history information to second It is possible to support acquisition of specific history information by supporting decryption of specific encrypted history information through a DRM user module linked to a user's terminal.

As another example, the life cycle information transaction server 100 may not be involved in the encryption process of specific history information, and a user who generates specific history information may be involved in the encryption process of specific history information.

Specifically, when the first user signature value included in the specific history information registration request obtained from the first user is verified, the life cycle information transaction server 100 determines the first specific history included in the specific history information registration request. information is transmitted to the first user, and the first user encrypts the first specific history information using the encryption key of the first user to generate encrypted first specific history information; and the encrypted first specific history information is generated. Once the information is obtained from the first user, a first specific history information transaction including the encrypted first specific history information may be created and broadcast to the blockchain network.

Then, when at least a part of the second purchase cost for the second specific history information is received as the address of the life cycle information transaction server 100, the life cycle information transaction server 100 generates the second specific history information. One third user transmits the third user's encryption key for decrypting the encrypted second specific history information to the second user, so that the second user can obtain the encrypted third user's encryption key using the third user's encryption key. It is possible to support acquisition of second specific history information by decoding specific 2 history information.

On the other hand, even after the sale of the specific history information through the above process, the specific history information sold to the second user is reprocessed by the second user, and the reprocessed specific history information is registered in the blockchain network, so that the specific history information Updating of specific life cycle information for a corresponding specific building may be performed.

Specifically, specific processing history information for registering the second specific processing history information generated by reprocessing the second specific history information by the second user in the distributed ledger of the blockchain network as specific life cycle information for a specific building. A registration request may be obtained from the second user.

At this time, the specific processing history information registration request is the specific building ID corresponding to the specific building, the second specific processing history information for the specific building, and the second specific processing history information signed using the second user private key. May include user signature value.

Then, the life cycle information transaction server 100 verifies the second user signature value included in the specific processing history information registration request, and when the second user signature value is verified, (i) a specific building ID, (ii) a 2 Specific processing metadata corresponding to the specific processing history information, (iii) encrypted second specific processing history information obtained by encrypting the second specific processing history information using a second encryption key, (iv) a second time stamp, ( v) A second server signature value in which at least one of the encrypted second specific processing history information and the second time stamp is signed with the private key of the life cycle information transaction server 100, (vi) Purchasing the second specific processing history information and (vii) a second specific processing history information transaction including information on the third purchase cost for the third purchase cost, and (vii) a settlement smart contract for settling the third purchase cost.

In this case, the information on the third purchase cost may include an amount corresponding to the third purchase cost, a receiving address for receiving the third purchasing cost, and at least one sending address for transmitting the received third purchasing cost (eg, the third purchasing cost). 3 specific send addresses).

In this case, the third specific transmission address may include (i) the address of the life cycle information transaction server 100 and (ii) the address of the second user corresponding to the second specific processing history information.

In addition, the third specific transmission address may further include at least one node address other than the address of the life cycle information transaction server 100 among addresses of blockchain nodes.

And, the life cycle information transaction server 100 broadcasts the second specific processing history information transaction to the blockchain network to cause at least one mining node to generate a blockchain block including the second specific processing history information transaction. And, by registering the block chain block including the second specific processing history information transaction in the distributed ledger by a distributed agreement between block chain nodes, specific life cycle information for a specific building may be updated.

In addition, the embodiments according to the present invention described above may be implemented in the form of program instructions that can be executed through various computer components and recorded in a computer readable recording medium. The computer readable recording medium may include program instructions, data files, data structures, etc. alone or in combination. Program instructions recorded on the computer-readable recording medium may be specially designed and configured for the present invention, or may be known and usable to those skilled in the art of computer software. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks and magnetic tapes, optical recording media such as CD-ROMs and DVDs, and magneto-optical media such as floptical disks. media), and hardware devices specially configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like. Examples of program instructions include high-level language codes that can be executed by a computer using an interpreter or the like as well as machine language codes such as those produced by a compiler. The hardware device may be configured to act as one or more software modules to perform processing according to the present invention and vice versa.

In the above, the present invention has been described by specific details such as specific components and limited embodiments and drawings, but these are provided to help a more general understanding of the present invention, and the present invention is not limited to the above embodiments. , Those skilled in the art to which the present invention pertains may seek various modifications and variations from these descriptions.

Therefore, the spirit of the present invention should not be limited to the above-described embodiments, and not only the claims described later, but also all modifications equivalent or equivalent to these claims belong to the scope of the spirit of the present invention. will do it

Claims (1)

In the method of trading building life cycle information based on a block chain network,
(a) The history information on each building corresponding to the life cycle of each building is encrypted and registered in the distributed ledger of the blockchain network as each history information transaction, and each life cycle information on each building In a state managed as , a specific history information registration request for registering first specific history information for a specific building from a first user - the specific history information registration request is a specific building ID corresponding to the specific building, the specific building Includes the first specific history information for and a first user signature value for signing the first specific history information using a first user private key - when is obtained, a blockchain node constituting the blockchain network If the life cycle information transaction server, which is any one of the blockchain nodes, verifies the first user signature value included in the specific history information registration request and the first user signature value is verified, the specific building ID, the Specific metadata corresponding to the first specific history information, encrypted first specific history information obtained by encrypting the first specific history information using a first encryption key, a first time stamp, the encrypted first specific history information, and A first server signature value that signs at least one of the first time stamps with the private key of the life cycle information transaction server, information on a first purchase cost for purchasing the first specific history information - the first purchase cost The information for the first purchase cost includes an amount corresponding to the first purchase cost, a receiving address for receiving the first purchasing cost, and at least one specific sending address for transmitting the received first purchasing cost - , and the Settlement smart contract for settling the first purchase cost - the settlement smart contract includes the receiving address for receiving the purchase cost for the purchase of history information and at least one transmission for sending the purchase cost received at the receiving address address, and the receiving address according to a preset contract When the purchase cost is received, the purchase cost is transmitted to the at least one transmission address, and the script registers a sales transaction related to the sale of history information in the distributed ledger. generate, and cause at least one mining node of the blockchain nodes to generate a blockchain block including the first specific history information transaction by broadcasting the first specific history information transaction to the blockchain network; By registering a blockchain block including the first specific history information transaction in the distributed ledger by a distributed agreement of the blockchain nodes, updating specific life cycle information for the specific building or the specific life cycle information for the specific building generating cycle information; and
(b) When a search request for the specific life cycle information corresponding to the specific building is obtained from the second user, the life cycle information transaction server uses the specific building ID corresponding to the specific building to store the distributed ledger obtaining specific history information transactions corresponding to the specific building ID including the first specific history information transaction registered in , so that the second user can check the specific life cycle information for the specific building; A second purchase cost for purchasing, by a second user, second specific history information included in a second specific history information transaction among the specific history information transactions corresponding to the specific life cycle information for the specific building is received by a second user. By being transmitted to the address, the settlement smart contract transmits the second purchase cost to at least one transmission address corresponding to the second specific history information according to the preset contract, and specific for the second specific history information. By broadcasting a sale transaction to the blockchain network, the at least one mining node among the blockchain nodes generates a blockchain block including the specific sale transaction, and by a distributed agreement of the blockchain nodes, the mining node When at least a part of the second purchase cost for the second specific history information is received as the address of the life cycle information transaction server by registering a blockchain block including a specific sales transaction in the distributed ledger, the second specific history information supporting the second user to acquire the second specific history information by transmitting a decryption key for decoding encrypted second specific history information included in an information transaction to the second user;
Including,
Each of the life cycle information for each building includes at least one of architectural design drawings, construction management information, supervision information, building maintenance management information, evaluation information, space experience information, and real estate transaction information. How to.

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