KR20010069723A - Digital recording medium with encrypted digital contents, method of distributing thereof and system for manufacturing therefor - Google Patents

Abstract

PURPOSE: A recoding medium, a distribution method, and a digital recoding medium manufacturing system is provided to protect a leakage of information by ciphering an information through a characteristic key, and by storing the ciphered information at a storage medium, and by distributing the storage medium through an information gotten at a system. CONSTITUTION: A digital recoding medium manufacturing system includes a web server(20), a characteristic key generating part(30), a characteristic key database(40), an information provider(70), a digital contents database(60), and a recoding medium manufacturing part(80). The web server(20) provides various services to an information demander(10). The characteristic key generating part(30) generates a characteristic key by searching a characteristic system information of a system used by the information demander(10). The characteristic key database(40) manages the characteristic key and a user information provided by the information demander(10). The information provider(70) provides information demanded by the information demander(10). The digital contents database(60) stores digital contents provided by the information provider(70). The recoding medium manufacturing part(80) receives the digital contents demanded by the information demander(10) from the digital contents database(60) and the characteristic key from the characteristic key database(40), and ciphers the digital contents with the characteristic key, and stores the ciphered digital contents at recoding medium.

Description

DIGITAL RECORDING MEDIUM WITH ENCRYPTED DIGITAL CONTENTS, METHOD OF DISTRIBUTING THEREOF AND SYSTEM FOR MANUFACTURING THEREFOR}

The present invention relates to a digital recording medium including encrypted digital content and a production system thereof. More specifically, only an authenticated user records a digital recording medium on which information including digital content is recorded using information of a user system. The present invention relates to a digital recording medium and a manufacturing system therefor for reading by an authorized information reading device.

Conventionally, the method of providing information is performed online or offline. In case of using online, it is difficult to transmit when the amount of information transmitted through communication and the problem of security of the user's authentication or distributed information is large. There was this. In the case of off-line, the information is generally recorded on the recording medium and delivered to the receiver. The recording medium has a problem in that unlimited copying is possible due to the nature of the digital information, which leads to unauthorized use and deterioration of the information. In addition, in order to prevent unauthorized duplication or the like, a method of using a specific key or inputting a digital code using a separate code collection has been used. However, even in this case, there are many problems in terms of information security.

In particular, in the process of providing and transmitting important information internally or internally by government departments, government offices, and corporations such as the NIS or the Ministry of Defense, which is making a lot of efforts to secure information, the above-mentioned problems are not significant security problems. Is causing them.

Accordingly, an object of the present invention is to solve the above problems, and to prevent the recorded information from being easily leaked by encrypting the information in consideration of the system characteristics of the user, storing the information on the recording medium, and transmitting the information to the receiver.

Another object of the present invention is to provide a digital recording medium for storing digital contents encrypted by a user system unique key generated by the unique system information of the user system.

It is still another object of the present invention to provide a digital recording medium on which digital content is encrypted using digital system contents of a user's user system to a user and reproduce the digital content using information obtained from the user system. It is to provide a method of distributing recording media.

The digital recording medium provided according to the present invention for achieving the above object is characterized by storing the digital content encrypted by the user system unique key generated by the unique system information of the user system.

In addition, a digital recording medium, which is another embodiment of the digital recording medium according to the present invention, includes an encrypted digital content, an encrypted decryption key capable of decrypting the encrypted digital content, and a system used by a user to decrypt the encrypted decryption key. And a user unique key generated from the unique system information indicating the characteristics of the digital media, and the reproduction of the digital recording medium decrypts the content decryption key encrypted by the user unique key, and the digital content encrypted by the decryption key is decrypted and reproduced. It features.

In addition, the method for distributing a digital recording medium according to the present invention provides a user with a digital recording medium on which digital content encrypted by a user unique key formed by using a unique system information of a user system of a user requesting the provision of digital content. The digital recording medium provided to the user decrypts the digital content by determining whether the information by the unique key of the user system matches the user system information.

Hereinafter, a digital recording medium including an encrypted digital content, a distribution method thereof, and a digital recording medium production system using the same will be described in detail with reference to the accompanying drawings.

1 is a schematic illustration of the configuration of an entire system in which a digital record carrier comprising encrypted digital content is produced in accordance with the present invention;

2 is a flowchart illustrating a user registration process.

3 is a block diagram showing a manufacturing process of a digital recording medium according to the present invention;

4 is a flow chart illustrating a manufacturing process of FIG. 3.

FIG. 5 is a block diagram illustrating a process of reading and reading information from a manufactured digital recording medium.

<Explanation of symbols for the main parts of the drawings>

10 ... Requestor for Information 20 ... Web Server

30 ... unique key generator 40 ... unique key database

50 ... recording medium production unit 52 ... content encryption unit

55 ... recording medium mastering unit

60 ... Digital Content Database

70 ... Information Providers 80 ... Recording Media

100 ... information reader 110 ... content decoder

120 ... Unique Key Searcher 130 ... Content Reader

1 is a diagram schematically showing the configuration of an entire system in which a digital recording medium including encrypted digital contents according to the present invention is produced.

Looking at the configuration of the entire system shown in Figure 1, the information requestor 10, or the system of the information requester, requesting the provision of a certain type of information over the Internet, various information requestors 10 on the Web using the Internet Unique key generation unit 30 for generating a unique key to search for the unique system information of the system used by the web server 20, the information requester 10 to provide a service of the form, the specific user system, Unique key database 40 for managing the unique key generated by the unique key generation unit 30 and the user information provided by the information requester 10, providing information requested by the information requester 10 The information provider 70, the digital content database 60 for storing and managing digital contents provided by the information provider 70, and the digital content request requested by the information requester 10. The unique key formed by the system information used by the information requestor 10 is received on the database 60 from the unique key database 40, and the digital content is encrypted to the recording medium 80 such as a compact disc or an optical disc. And a recording medium manufacturing unit 50 for storing.

In the operation of the system having the above configuration, as shown in FIG. 2, the information requester 10 accesses the web, generates a unique key using its own system information, and stores it in the unique key database 40. Accordingly, a process of requesting information, a process of producing a recording medium for storing digital content according to the request of the information requester 10, as shown in FIGS. 3 and 4, and an information requester 10 as shown in FIG. 5. Can be divided into the process of reproducing the recording medium provided. Each of these steps will be described in more detail with reference to the drawings.

The production of the digital record carrier provided in accordance with the present invention is basically accomplished by the information requester 10 requesting the information he wants. To do this, the following process should be performed. First, the information requester 10 accesses the web server 20 through the Internet (step S10) and performs a user registration procedure. The user registration procedure is performed by inputting their information in a general user registration form (S20).

When the information requester 10 accesses the web server 20, inputs all user information in the registration form, and registers the user through the input completion button, an application such as ActiveX is automatically downloaded, and user system information. Generate a unique key (Unique ID; UUID) from (S30 step). The process of generating a unique key will be described in more detail as follows.

The components of a computer system include a central processing unit (CPU), RAM, a hard disk (HDD), and various devices. First, in the central processing unit, each chip of Pentium III or higher has a unique ID for each chip, and there is no unique ID for the RAM. In addition, the hard disk can find the manufacturer information (IDE) by examining the physical sector of the master area. Manufacturer information includes the manufacturer name, serial number, model information. Of course, in case of serial number, the number used by manufacturer A, manufacturer B, etc. may overlap. In addition, the ID (ID) of the network card, ID (ID) of the board is possible. As such, this information is extracted from the components of the system indicating the unique characteristics of the system. A unique key is generated based on the extracted system information.

Of course, as described above, generating unique data from the information of the system is automatic and the user does not know that the system unique key is generated. The generated user unique key and the user information input for the user registration are transmitted to the web server 20 and stored in the database 40 (step S50). When the transmission of the user unique key and the user information is completed, the information requester 10 may request to provide the necessary information by searching the digital content database 60 in which the information provided by the information provider 70 is stored (step S60). . The request for the provision of information at this time is made by email or in accordance with other request forms.

As described above with reference to FIG. 3 and FIG. 4 in response to a request for the provision of information by the information requester 10, the production process of the digital recording medium according to the present invention will be described as follows. same.

The term &quot; recording medium &quot; to be mentioned through the above process refers to a medium used for recording information. As used herein, the term "recording medium" refers to a storage device (medium) capable of storing various digital information, and means a medium that can be read by a mechanical device such as a computer. The concept includes both magnetic media such as floppy disks and optical media such as CD-ROM, CD-RW, CD-I, video CD, photo CD, DVD, and the like. In the present invention, a CD-ROM will be described as an example.

3 and 4, if there is a request for information from the information requester 10 (step S100), the information of the information requester 10 is transmitted to the recording medium production unit 50 (step S110). The recording medium production unit 50 requests such information to the user unique key database 40 which stores the user unique key and the user information according to the requested information (step S120), and the corresponding data is sent to the recording medium production unit 50. It is transmitted (step S130). In addition, the corresponding data is requested to the digital content database 60, in which information on the digital content is stored and managed, and the information retrieved from the database is transmitted to the recording medium production unit 50 (step S140). The recording medium production unit 50 encrypts the digital content in the content encryption unit 52 (S150). At this time, the encryption key requests the user unique key database 40 from the transmitted user information, receives the user's unique key, and uses it as a key.

That is, the content is encrypted using a unique key generated using the system characteristic information of the user who requested the information. The encrypted content is transmitted to the recording medium mastering unit 55 (step S160). For example, in the case of using a CD as a recording medium, the CD mastering unit masters the received encrypted content to the CD. The mastered CD is delivered to the user. In this case, the recording medium mastering unit 55 performs mastering of the medium by using the encrypted digital content according to a general method (S170).

When the production of the recording medium including the encrypted digital content is completed as described above, the recording medium is delivered to the information requester, and the process of reading and reading the information from the recording medium is performed as shown in FIG.

The information requester 10 may reproduce the digital content recorded on the recording medium or read information from the received recording medium in the recording medium reading unit 100 of the user system through the following process. First, the recording medium reading unit 100 provides a dedicated viewer as a dedicated program that can use digital content on a user system. The recording medium reading unit 100 may include a content decoding unit 110 for decoding digital content provided in a large encrypted state, and a content reading unit 130 for reading or reproducing the digital content according to the format of the decrypted digital content. And a unique key search unit 120 for searching for a unique key (UUID) for system information of the user system.

For example, in order to read information from a compact disc (CD), which is a recording medium on which information is recorded, a CD is first inserted into a drive. At this time, as the computer reads the CD, the recording medium reading unit 100 may be automatically executed or may be manually executed by the user. The executed recording medium reading unit 100 finds the unique key using the system information constituting the unique key in the user's system in the unique key searching unit 120. When the unique key is found, the content decryption unit 110 decrypts the digital content encrypted with the unique key using the unique key. The decrypted digital content is reproduced in a form suitable for the format by the content reading unit 130. That is, in the case of a document file, it is simply displayed on a screen, or in the case of multimedia data such as music or a movie, it is reproduced in a predetermined form.

At this time, if the unique key that encrypts the digital content and the unique key obtained by searching from the user's system do not match, the digital content is not decrypted and an error message indicating that there is no right to use the digital content is output.

As described above, the present invention provides a recording medium on which information is safely recorded, a method of producing, transmitting, and distributing the same, and the effects and usefulness obtained by the system using the same.

First, the information is encrypted and recorded on the recording medium, and the information is secured by transferring it to the receiver. In particular, the encryption can be performed by using a unique key generated from the system unique information of the information receiver so that decryption can be performed only in the system where the unique key is generated, thereby preventing the leakage of the information stored in the recording medium.

Because of the above features, the present invention enables secure distribution of security-relevant information such as military-related information, government-related, corporate confidential information, and so that only authorized users and authorized reading devices and systems can read information. This ensures the safe distribution and access of important information.

To date, preferred embodiments of a recording medium on which information has been securely recorded, and methods and apparatuses for transmitting and viewing the same, have been disclosed and described, but for those skilled in the art, these embodiments are for illustrative purposes only. It is not limited thereto, and it will be apparent that various changes or modifications, substitutions and substitutions can be made within the scope of the technical idea of the present invention. It is also to be understood that the spirit of the present invention is not limited to the above-described embodiments, but only by the appended claims and equivalent technical principles.

Claims (12)

A digital recording medium for storing digital content encrypted by a unique key of a user system generated by unique system information of a user system. According to claim 1, wherein the unique system information is a unique ID (ID) of the central processing unit of the user system or the information of the manufacturer of the hard disk and the serial number of the hard disk, ID (ID) of the network card, the ID of the board ( ID). The method of claim 1 or 2, wherein the decryption of the digital content is performed by checking whether a unique key generated through information embedded in the user system matches the user system unique key that encrypts the digital content. Digital record carrier characterized in that. 4. The digital recording medium of claim 3, wherein the digital recording medium is a magnetic recording medium or an optical recording medium. In a digital recording medium, The digital record carrier Encrypted digital content; An encrypted decryption key capable of decrypting the encrypted digital content; And A user unique key generated from unique system information indicating a characteristic of a system used by a user to decrypt the encrypted decryption key, The reproduction of the digital recording medium is characterized in that for decrypting the encrypted content decryption key by the user unique key, the encrypted digital content is decrypted and reproduced by the decryption key. 6. The digital recording medium of claim 5, wherein the unique system information is at least one of a unique ID of a central processing unit of the user system and information of a manufacturer of a hard disk. 7. The digital recording medium of claim 5 or 6, wherein the digital recording medium is a magnetic recording medium or an optical recording medium. Providing a user with a digital recording medium on which digital content encrypted by a user unique key formed by using unique system information of a user system of a user requesting the provision of digital content is provided to the user. And decrypting the digital content by determining whether the unique key matches the user system information. The method of claim 8, wherein the unique system information of the user system is at least one of a unique ID of the central processing unit of the user system and information of a manufacturer of the hard disk. A user unique key database for storing and managing data on a user's registration information and a unique key formed by a unique system of the user system; A digital content database for storing and managing digital content provided by the information provider; In response to a request for providing information on digital content included in the digital content database of the user, the digital key is received by encrypting the digital content using the unique key as an encryption key by receiving information of the unique key for the user from the user unique key database. And a recording medium manufacturing means for recording on a medium. The system of claim 10, wherein the registration information of the user and the information on the unique key are transmitted through the Internet and stored in the user unique key database. 12. The system of claim 11, further comprising unique key generating means for generating a unique key using the transmitted unique key information.