KR20030047559A - System for production and regeneration of encrypted file regardless of a media players - Google Patents

Abstract

PURPOSE: A system for creating and reproducing an encoded file regardless of kind of a reproduction program is provided to prevent an illegal copy of media files by encoding various kinds of media files, decoding the encoded media files through a reproduction program wanted by a user, and reproducing the files. CONSTITUTION: A plurality of user computers(200) output member registration request data of a user communicated with a server computer(300) which creates and supplies an encoded file through a communication network(100) to the server computer(300), and receive data for a member registration from the server computer(300). The user computer(200) outputs member registration data being inputted by the user to the server computer(300), receives and stores a user inherent key being created in a member registration from the server computer(300). The user computer(200) outputs specific media file request data being inputted by the user who checks registered media files to the server computer(300), and receives a specific one-click encoded file. The header portion is encoded by the inherent key of the user. If the user executes the one-click encoded file, the user computer(200) automatically constructs a reproduction environment and decodes the encoded file using the inherent key of the user, and reproduces the file through a reproduction program wanted by the user.

Description

System for production and regeneration of encrypted file regardless of a media players}

The present invention relates to an encrypted file generation and playback system.

More specifically, based on DRM (Digital Rights Management) technology, it encrypts various media files such as video, music, document, etc. to support all file formats and playback programs with security, The present invention relates to an encryption file generation and playback system irrespective of the type of a playback program capable of decrypting and playing back various encrypted media files.

In general, the Internet, which has emerged with the information age, is slowly becoming a popular tool that can be handled at the level of individuals, not schools and businesses, and as expected, a lot of information is floating on the Internet. While there is an advantage that can be easily obtained, there are also disadvantages due to indiscriminate exchange of information. In other words, pornography can be mentally harmful to immature youth, and free music files can cause material damage to record labels and musicians who produce and sell music.

In addition, the importance of content is emerging among the success factors of websites that conduct business using the Internet described above. This is because a website with excellent content can do business in a more favorable position than other competing websites, and acts as an entry barrier to block entry of other competitors in advance.

However, since the content published on the web is easily stolen and illegally copied, it is very difficult to receive copyright protection. However, because the contents of their contents are exposed to a large number of consumers and the website can be developed only when they are properly evaluated, they have no choice but to disclose the contents they have.

In particular, in the case of a site that operates excellent content for a fee, many people worry about how their content can be exposed to consumers. As a result, there is a need for content security.

DRM, which means digital rights management, protects various digital contents such as electronic books, music, videos, movies, games, software, stock information, images, etc., and benefits to copyright related parties by using such protected contents. It is a product and service that manages and protects copyrights and guarantees profits.

The above-mentioned DRM encourages copyright holders to produce more high-quality content through solutions for illegal copying and transparent payment, which are the biggest obstacles to the spread of the digital content market. It presents a profit model and plays an important role in providing users with low-quality content in comparison with offline.

The DRM technologies developed to date can be classified into two categories. One is the "system-based type" that combines the entire digital contents distribution process with core information technologies such as encryption, network, and information management. The other is the "element technology-based type" that utilizes element technologies such as encryption and watermarking.

"System-based type" is characterized by preceded research on social change in accordance with the spread of the Internet before DRM technology development. As a result, the company found that the need for marketing 4P (Product, Place, Price, Promotion) support for the external sale of digital content and the effective security and management necessary for knowledge management of internal users will be very strong.

In addition, the general user side has found that not only should the content be easily available, but also require a means for easily delivering the content to friends or colleagues. DRM technology that meets these demands includes not only security and copyright protection of the content itself, but also content usage management technology offline, various license control, performance management and billing technology, multimedia technology, multiplatform technology, wireless technology, and flexible business rule definition. Technology and process technologies that support the entire cycle of content creation, distribution, use and management in a global environment.

The element technology-based type is an extension of the DRM technology by integrating related technologies mainly on element technologies such as encryption or watermarking. Although the acceptance of the entire process cycle related to digital protection differs from "system-based technology," the encryption and management functions for copyright protection itself are technologies that are sufficiently applicable according to the target field.

Such DRM technology is currently being developed by various companies in Korea, and even in foreign countries, the development is completed with high security.

However, the DRM technology as described above is not on the schedule to settle in the Internet, because each company is developing DRM based on its own technology without the generalized standard.

In addition, as the security is enhanced, the user's convenience is lowered, causing another problem to be disregarded by the user. In other words, each company that owns DRM technology uses a unique encryption algorithm to encrypt various media files in a restricted file format. Therefore, users have to use a dedicated playback program provided by the company. If you use a general playback program (for example, Windows Media Player, Winamp, various Weed Processors, etc.) without using a dedicated playback program provided by the company, there was a problem that the file cannot be decrypted and played back.

Accordingly, in recent years, the technical necessity to decrypt and reproduce the encrypted file regardless of the type of the playback program has been proposed, but the current technology development is very minimal.

In addition, in the above-described DRM technology, the original media file is illegal in the process of encrypting and decrypting various media files (e.g., save as function, copy, paste function, etc. while using a playback program). There was a problem that can be extracted and used as.

An object of the present invention is to encrypt the various media files such as music, movies, etc. to support all file formats and playback programs with security based on the DRM technology, to solve the above-mentioned problems, the user desired playback program The present invention provides a system for generating and reproducing an encrypted file irrespective of the type of a playback program that prevents illegal copying of media files by decrypting and playing various encrypted media files.

Another object of the present invention, when building an environment for executing a variety of encrypted media files on the user's computer, the playback program to automatically build and play back the environment when the user executes the encrypted file without having to set the environment yourself It is to provide an encryption file generation and playback system irrespective of the type.

It is still another object of the present invention to separate a playback program for playing an original media file and a program for decoding an original media file into an application level and a system level, thereby allowing a user to select a type of playback program. The present invention provides an encryption file generation and playback system irrespective of the type of a playback program that enables an encrypted media file to be played through a specific playback program regardless of a desired playback program.

1 is a block diagram schematically illustrating a configuration of an encryption file (SOM file) generation and playback system irrespective of the type of a playback program according to the present invention;

2 is a view for explaining the creation and database storage process of the one-click encryption file (SOM file) of the present invention;

3 is a view showing a schematic configuration of an encryption file (SOM file) used in the present invention,

4 is a diagram illustrating a detailed configuration of an [Info] part of FIG. 3;

5 is a view showing a detailed configuration of each [Rule] part of the [Rules] part of FIG. 4;

6 is a view showing the configuration of a one-click encryption file (SOM file) used in the present invention,

7 is a view showing a process of building an execution environment of an encryption file (SOM file) irrespective of the type of a playback program according to the present invention;

8 and 9 are diagrams each showing a playback process of an encrypted file (SOM file) irrespective of the type of a playback program according to the present invention;

10 is a flow chart showing in detail the operation of the encryption file generation and playback method irrespective of the type of playback program according to the present invention;

11 to 14 are flowcharts showing in detail the operation of each subroutine of FIG.

Explanation of symbols on the main parts of the drawings

100: network communication network

200: your computer

300: server computer

An encryption file generation and reproduction system irrespective of the type of a reproduction program according to the present invention for achieving the above object comprises: a network communication network which connects a plurality of unspecified communication lines to perform data communication with each other; In response to a member registration request performed by a user who creates and provides an encrypted file through a network communication network, a predetermined form data for member registration is input from the outside, and the user is provided according to the form data provided from the outside. Outputs the member registration data to be input to the outside, and receives and saves the user's unique key generated at the time of membership registration from the outside, and sends the specific media file request data input by the user who has confirmed a plurality of externally registered media files to the outside. Outputs, and receives a specific one-click encryption file (SOM file) whose header part is encrypted with the user's unique key from the outside, and automatically plays the playback environment when the user's one-click encryption file (SOM file) is executed. After construction, the corresponding encryption wave using the stored user's unique key A plurality of user computer and for reproducing by decoding a (SOM file) over the playing program the user wants; Encrypts various media files with a key generated regardless of a specific user through a password file generator, generates an encryption file (SOM file), converts it into a one-click encryption file (SOM file) that can be automatically executed, and stores it in a database. When a user who performs a communication connection through a network network enters a unique ID and password to register a member, a user's own key is generated, and the user information is stored in a database. The header portion of the specific one-click encryption file (SOM file) stored in the database is encrypted with a user's own key, and the server computer transmits the encrypted one-click encryption file (SOM file) to the corresponding user computer.

In addition, the encryption file generation and playback method irrespective of the type of the playback program according to the present invention, (1) a server server computer encrypts a plurality of original media files using a key generated irrespective of a specific user, the temporary encryption file ( Generating a SOM file, converting the temporary encryption file (SOM file) into a temporary one-click encryption file (SOM file) in an auto-executable form, and storing the SOM file in a one-click encryption file (SOM file) database; (2) Based on the member registration data for use of the encryption file (SOM file) inputted by the user who has accessed the communication through the network communication network from the server computer, the user's unique key is generated and stored in the user database, and created when registering the member. Providing the user's unique key to the user's computer to store the user's unique key; (3) Upon request of the user's specific source file, the server computer performs a license check (e.g., payment confirmation) from the user using the source file, and the temporary one-click encryption file (SOM file) stored in the database ( Encrypting the header portion of the SOM file with the corresponding user's unique key and transmitting the one-click encryption file (SOM file) to the corresponding user computer through a network communication network; (4) The user who has received the one-click encryption file (SOM file) from the server computer executes the one-click encryption file (SOM file) to perform decryption and play it on the user's computer. And a process of decrypting and reproducing an encrypted file (SOM file) in real time through a playback program.

Hereinafter, an encryption file generation and reproduction system irrespective of the type of a reproduction program of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram schematically illustrating a configuration of an encryption file generation and playback system irrespective of the type of a playback program according to the present invention.

As shown, the network communication network 100 is a communication network such as a wired / wireless internet, and connects communication lines between a plurality of user computers 200 and a server computer 300 to mutually encrypt data (SOM files). Allow communication.

The plurality of user computers 200 outputs member registration request data performed by a user who has made a communication connection with the server computer 300 that generates and provides an encryption file through the network communication network 100 to the server computer 300. The server computer 300 receives predetermined form data for member registration from the server computer 300, and receives member registration data such as ID, password, and personal information input by the user according to the form data provided from the server computer 300. At the same time, the user's unique key generated at the time of member registration is received from the server computer 300 and stored.

Then, the specific media file request data input by the user who has confirmed the plurality of media files registered in the server computer 300 is output to the server computer 300, and the user of the corresponding user from the server computer 300 according to the user's request. Receives a specific one-click encryption file (SOM file) whose header is encrypted with a unique key, and automatically creates a playback environment when the user's one-click encryption file (SOM file) is executed. Decode the file (SOM file) and play it back through the user's desired playback program.

The server computer 300 encrypts various media files such as movies and music with a key generated regardless of a specific user through an encryption file generator to generate an encryption file (SOM file), and then automatically executes a one-click encryption file. (SOM file) is converted into a database and stored in the database, and when a user who performs communication access through the network communication network 100 performs member registration by inputting a unique ID and password, a user's information is generated after generating a user's own key. In the database, encrypt the header portion of a specific one-click encryption file (SOM file) stored in the database with the user's own key, and encrypt the encrypted one-click encryption file (SOM file) according to the user's file transfer request. Send to 200.

In addition, the above-described server computer 300, the encryption file generator to drive the encryption file (SOM file) generator and one-click encryption file (SOM file) generator to generate a temporary one-click encryption file (SOM file) from the original file (SOM Maker) 310 and a plurality of provisional one-click encryption files (SOM files) generated through the password file generator 310, and stores a specific one-click encryption file (at the request of the server computer 300) SOM file) and the one-click encryption file (SOM file) database 320 to output to the server computer 300, the ID, password and various personal information entered by the user performing the membership registration and server computer 300 during membership registration A user database 330 is provided that stores key information unique to the user.

In this case, the provisional one-click encryption file (SOM file) refers to the generation of a file only up to the stage before the final one-click encryption file (SOM file) is not yet encrypted for a specific user.

FIG. 2 is a diagram for explaining a process of generating a one-click encryption file (SOM file) and storing a database as described above.

As shown, the encryption file generator 310 of the server computer 300 drives the encryption file (SOM file) generator 312 to generate the original media file as an encryption file (SOM file), and then a one-click encryption file. Runs the SOM file generator 314 to convert the encrypted file (SOM file) into a one-click encrypted file (SOM file) so that the user can decrypt and play it back, and converts the converted one-click encrypted file (SOM file). The one-click encryption file (SOM file) is stored in the database 320.

3 is a view showing a schematic configuration of an encryption file (SOM file) used in the present invention, when the encryption file (SOM file) is generated from the original file of FIG. Is a view showing in detail.

As shown, the encrypted file (SOM file) is composed of a [Header] portion containing information about the encrypted file (SOM file) and a Media portion containing the original file encrypted. Is not a single value but a collection of information)

[Header] part means the corresponding version of the encryption file (SOM file) and contains the Version part, which is pure code that is not encrypted, and the [Info] part that contains all information used in the encryption file (SOM file). It consists of.

The [Info] section contains the [Source] section containing information about the original file, the [Owner] section containing copyright and user information, and the [Rule] containing various rules for using an encryption file (SOM file). Rules] portion and a Key portion that is generated regardless of a specific user and used to encrypt the original file in the above-described encryption file generator (SOM file) generator 312 of FIG. 2 and used to decrypt the original file during playback. It is.

FIG. 4 is a diagram illustrating a detailed configuration of the [Info] part of FIG. 3 described above. In the [Source] part, a file name, a media type, and other additional information are stored. In the [Owner] section, a producer, a seller, a buyer, a current user, and a whole copier are recorded.

The [Rules] section includes a Registered [Rule] section that records information about official use of various rules using an encryption file (SOM file), an Unregistered [Rule] section that records information about using a demo version, and It is composed of Applied [Rule] part to record rule information temporarily. That is, the above [Rules] part is divided into official use and demo version use, and there is one buffer for temporarily storing rules.

FIG. 5 is a diagram illustrating a detailed configuration of each [Rule] portion of the [Rules] portion of FIG. 4 described above. FIG. 5 is a flag for deciding which of three conditions, time, execution frequency, and use range, described later, is to be used. A time in which information on a time condition is stored so that the media can be played for a specific time, a count in which information on the execution count condition is stored so that the media can be played for a specific number of times, and It consists of a range part that stores information on the use range condition so that only a specific part can be played.

In this case, the information recorded in the flag may be applied to several conditions at the same time, not just one condition.

FIG. 6 is a diagram showing the configuration of a one-click encryption file (SOM file) used in the present invention. As shown in the description of FIG. 2, the user can decrypt and reproduce the encrypted file (SOM file). It is a figure which shows the structure of the one-click encryption file (SOM file) which becomes a detail.

As shown, the one-click encryption file (SOM file) is a self-extractor file constituting it, data information (Installer), which records information about the size of each file, Encrypted File (SOM File) Filter, Encrypted File (SOM File) Replay Agent Encrypted File (SOM File) Each file is combined into one file.

Among these, the self-extractor file recognizes the separation position of each element based on the size information recorded in the data information, and installs an installer, an encryption file (SOM file) filter, and an encryption file ( SOM file) Executable file that separates each file of playback agent and encryption file (SOM file).

In the Data Info section, information on the size of each element constituting the one-click encryption file (SOM file) is recorded.

The installer installs the encryption file (SOM file) filter, the encryption file (SOM file) replay agent, and the encryption file (SOM file) to a designated location on the hard disk of the user's computer 200. A connection program (playback program) of a file) is set as an encryption file (SOM file) playback agent, and the encrypted file (SOM file) is played back.

The encryption file (SOM file) filter is located at the system level of the user's computer 200, and detects file input / output (I / O) as a file system and performs processing required for the encryption file (SOM file). The original file is played by decryption in real time. That is, the encryption file (SOM file) filter performs decryption of [Info] of the [Header] portion of the encryption file (SOM file) based on the user's unique key provided in the server computer 300 and stored in the system at the time of member registration. Encrypted file (SOM file) playback agent to check the media type to play.

In addition, the process of checking the execution condition in the above-mentioned encryption file (SOM file) filter (when the original media file is played for the first time) is performed as follows. (See FIG. 4) First, the current user of the [Owner] section. Record the user's ID in the (User) area, and if the user who plays the encrypted file (SOM file) is the purchaser, copy the Registered [Rule] section of the [Rules] section to the Applied [Rule]. In case of User, copy Unregistered [Rule] of [Rules] to Applied [Rule]. If the conditions of Applied [Rule] are met, the original media file is played and the Applied [Rule] part is changed as necessary.

Encrypted File (SOM File) The Replay Agent loads the Encrypted File (SOM File) filter into the memory of the user's computer 200 to decrypt the encrypted file (SOM file), and the [Header] portion of the encrypted file (SOM file) A playback program that plays the recorded media type is executed to decrypt the encrypted file (SOM file) to play the original media file.

The encryption file (SOM file) is located at the end of the one-click encryption file (SOM file), and the original file is encrypted with information about the encryption file (SOM file).

7 is a diagram illustrating a process of building an execution environment of an encryption file (SOM file) irrespective of the type of a playback program according to the present invention.

As shown, when a user who has received a specific one-click encryption file (SOM file) from the server computer 300 executes to play the one-click encryption file (SOM file), the one-click encryption file (SOM file) The self-extractor file recorded at the beginning is executed to separate the encryption file (SOM file) replay agent, the encryption file (SOM file) filter, and the encryption file (SOM file) into files.

Subsequently, the encryption file (SOM file) playback agent and the encryption file (SOM file) filter included in the one-click encryption file (SOM file) are installed by the installer to a specific designated location of the user's computer 200 hard disk. Installed, replay the encrypted file (SOM file) agent, loads the encrypted file (SOM file) filter installed at the system level into the memory, and decrypts it immediately using a playback program suitable for replaying the encrypted file (SOM file). do.

In this case, the above-described encryption file (SOM file) filter serves to prevent the decrypted content from being stored as it is.

On the other hand, when a user executes a one-click encryption file (SOM file) to build an environment in which the encryption file (SOM file) can be executed and then plays back the encryption file (SOM file), there are two methods of FIGS. 8 and 9. You can play the original file via.

In the first method, as shown in FIG. 8, a user directly executes an encryption file (SOM file) to play an original file.

In this case, the encryption file (SOM file) replay agent and the encryption file (SOM file) filter already exist on the user computer 200, and the connection program (specific playback program) of the encryption file (SOM file) is the encryption file (SOM file). Since it is set as a playback agent, a user can decrypt and reproduce the original file encrypted through a desired playback program.

That is, the encryption file (SOM file) playback agent executes a playback program connected to the original file, and the encryption file (SOM file) filter performs decryption of the encryption file (SOM file) and plays back the original file.

In addition, as shown in FIG. 9, a second method is to execute a specific playback program desired by a user, and then select and open an encryption file (SOM file) in the playback program.

In this case, if the encryption file (SOM file) filter is loaded in the memory, it is possible to decrypt the encryption file (SOM file) and play the original file without the help of the encryption file (SOM file) replay agent. .

Next, a method for generating and reproducing an encrypted file irrespective of the type of the reproduction program according to the present invention configured as described above will be described in more detail with reference to FIGS. 10 to 14.

10 to 14 are flowcharts showing in detail the operation of the encryption file generation and playback method irrespective of the type of the playback program according to the present invention.

First, the server computer 300 generates a temporary encryption file (SOM file) by encrypting a plurality of original media files using a key generated regardless of a specific user, and automatically executes the temporary encryption file (SOM file). After converting into a temporary one-click encryption file (SOM file) in the form and stored in the one-click encryption file (SOM file) database 320 (S100).

In detail, the server computer 300 obtains various original media files from a plurality of media file holders (S110), and encrypts the obtained plurality of original media files using a generated key regardless of a specific user. (S120).

Thereafter, the server computer 300 includes the generated key regardless of the specific user in the header, and then combines the header and the encrypted original media file to generate a provisional encryption file (SOM file) (S130).

In this case, the term "provisional" means that the [Info] part of the header of the encryption file (SOM file) of FIG. 3 described above is not encrypted with the unique key of a specific user, and the [Info] part of the header part and the above-described FIG. The portion of the [Owner] portion of 4 except for the purchaser, the current user, and the entire copier portion so far is set during the generation of the temporary encryption file (SOM file).

After generating the provisional encryption file (SOM file), the server computer 300 converts the provisional encryption file (SOM file) into a provisional one-click encryption file (SOM file) in the form of an auto executable (S140), and the temporary circle The click encryption file (SOM file) is stored in the one-click encryption file (SOM file) database 320 and the service starts (S150).

The provisional meaning at this time means that a file up to the stage before the final one-click encryption file (SOM file) is created, as described above, is not yet encrypted for a specific user. The temporary one-click encryption file (SOM file) generation process described above may be performed every time a new original media file is acquired.

After generating a temporary encryption file (SOM file) through the above-described process (S100) and converting it into a temporary one-click encryption file (SOM file) and storing it in a database, the server computer 300 is a network communication network 100 Based on the member registration data for the use of the encryption file (SOM file) input by the user who has accessed the communication through the user, the user's unique key is generated and stored in the user database, and the user's unique key generated during membership registration is stored in the user's computer ( 200 to be transmitted and stored (S200).

In detail, the server computer 300 checks whether a specific user who wants to use an encryption file (SOM file) proceeds with a communication connection through the network communication network 100 (S210), and communicates with the server computer 300. It is determined whether the user who proceeded with the access logs in to use the encryption file (SOM file) or requests a new member registration (S220).

At this time, the reason why the user registration is necessary is to prevent illegal duplication of various media files. If the original media file is not encrypted using user-specific key information, this purpose can be achieved. Because you can't.

As a result of the determination in step S220, when the user inputs the login data of the ID and password, the server computer 300 checks whether the user is a member and outputs initial screen data to the user computer 200. (S230).

In addition, when the user requests a new member registration as a result of the above-described determination (S220), the server computer 300 outputs predetermined form data for member registration to the corresponding user computer 200 (S240). In step S250, it is determined whether to input member registration data including unique IDs, duplicate passwords, and personal information such as addresses and contacts that do not overlap with other users.

As a result of determination, when the corresponding user inputs member registration data, the server computer 300 generates a corresponding user unique key based on the member registration data input by the user, and the user database 330 together with the member registration data input by the user. Store in (S260).

Subsequently, the server computer 300 outputs initial screen data to the corresponding user computer 200 which has performed member registration, and transmits the user unique key generated at the time of member registration to store in a predetermined position of the user computer 200. (S270).

At this time, the initial screen data output from the server computer 300 to the user computer 200 through the above-described step (S230) (S270), each user can select and download a specific media file desired to be.

Now, after generating and storing the corresponding user unique key according to the user registration of the user in the server computer 300 through the above-described process (S200) and transmitting and storing the user unique key to the user computer 200, the server The computer 300 first checks the license for using the original file from the user according to the request of the specific source file of the user connected to the communication, and the temporary one-click encryption file (SOM file) stored in the one-click encryption file (SOM file) database. After encrypting the header portion of the user with a unique key and transmits the one-click encryption file (SOM file) to the user computer 200 through the network communication network (100) (S300).

In detail, the server computer 300 determines whether the user connected to the communication selects a specific file from among a plurality of original media files registered in the server computer 300 (S310).

As a result of determination, when the user selects a specific file, the server computer 300 requests the user computer 200 requesting a specific source file for obtaining a license (for example, payment) based on the use of the file (S320), and the corresponding file. In operation S330, it is determined whether an acquisition of a use right according to file use is performed from a user.

As a result of the determination, when the license for using the original file is confirmed by the user, the server computer 300 uses the header part of the temporary one-click encryption file (SOM file) stored in the one-click encryption file (SOM file) database as the corresponding user's unique key. After encryption (S340), the one-click encryption file (SOM file) is transmitted to the corresponding user computer 200 through the network communication network 100 (S350).

At this time, the above-described step (S340) is a step of encrypting the [Info] portion in the header of the tentative encryption file (SOM file) with the corresponding user unique key, and setting the user information in the unrecorded portion of the [Owner] portion.

Finally, after transmitting the one-click encryption file (SOM file) for the specific source file to the corresponding user computer 200 through the above-described process (S300), the one-click encryption file (SOM file) from the server computer 300 When the user who received the user executes the corresponding one-click encryption file (SOM file), the user computer 200 establishes an environment in the user computer 200 that can simultaneously decrypt and play the encrypted file (SOM file). Decode and play in real time (S400).

In detail, the user computer 200 that receives the one-click encryption file (SOM file) from the server computer 300 determines whether the user executes the one-click encryption file (SOM file) (S410).

As a result of the determination, when the user executes the corresponding one-click encryption file (SOM file), the user computer 200 is included in the one-click encryption file (SOM file) to construct an environment that can simultaneously decrypt and reproduce the original file. Install the encrypted file (SOM file) replay agent and the encrypted file (SOM file) filter at the application level and system level of the user's computer 200, and save the encrypted file (SOM file) to the user's computer 200. A connection program of an encryption file (SOM file) is set as an encryption file (SOM file) reproduction agent (S420).

That is, the user computer 200 recognizes the location to be separated by referring to the information stored in the data information part included in the one-click encryption file (SOM file), and executes the installer to install the encrypted file. (SOM file) After installing the replay agent, encryption file (SOM file) filter, and encryption file (SOM file) in the designated location of the user's computer 200, the connection program of the encryption file (SOM file) is installed in the encryption file (SOM file). ) To set up as a playback agent.

In addition, after the encryption file (SOM file) playback agent, the encryption file (SOM file) filter, and the encryption file (SOM file) are installed in the user computer 200 through the above-described step (SOM), the user computer 200 corresponds to the corresponding file. It is determined whether the user executes the encryption file (SOM file) (S430).

As a result of the determination, when the user executes the encryption file (SOM file), the user computer 200 executes the encryption file (SOM file) replay agent to load the encryption file (SOM file) filter into the memory, and the server computer ( The media type is checked by decrypting the header portion of the encryption file (SOM file) with the user's unique key transmitted and stored in step 300 (S440).

That is, when a user executes an encrypted file (SOM file), the connection program of the encrypted file (SOM file) is set as the encrypted file (SOM file) replay agent. As a result, the encrypted file (SOM file) replay agent is encrypted. File) and the encryption file (SOM file) filter obtains the media type by decrypting the [Info] portion of the encryption file (SOM file) header with the corresponding user's unique key previously stored in the user's computer 200 at the time of membership registration. It can be.

Thereafter, the user computer 200 executes a playback program connected to the media type identified through the above-described step S440, and decrypts and plays back the encrypted file (SOM file) in real time with an encryption file (SOM file) filter. (S450).

On the other hand, when the user executes the one-click encryption file (SOM file) received from the server computer 300 in the above-described step (S410), an environment that can be decrypted and reproduced at the same time to the user computer 200 is already built If so, the decryption of the encryption file (SOM file) is performed in step S420 and construction of an environment that can be reproduced at the same time is omitted.

In addition, when the user executes the encryption file (SOM file) in the above-described step (S430), the user directly executes the encryption file (SOM file) to play the original file, and the specific playback program desired by the user Select the encryption file (SOM file) from within to play the original file.

As described above, according to the encrypted file generation and playback system irrespective of the type of the playback program of the present invention, the user can decrypt and play the encrypted file through a desired playback program without using a dedicated playback program. Can easily accept security content that is considered somewhat hard and difficult, and can prevent illegal copying of various media files such as movies and music.

In addition, by automatically setting up and playing the environment when the user executes the encrypted file without the user having to manually set the environment of the playing program, the encrypted media files can be stored without the user having to make an effort to build the playing program environment. There is an advantage that can be very convenient to use.

In addition, since the playback program for playing the original media file and the program for decrypting the original media file are separated into application level and system level, the user can play the encrypted media file through a specific playback program. have.

Herein, while the present invention has been described with reference to the preferred embodiments, those skilled in the art will variously modify the present invention without departing from the spirit and scope of the invention as set forth in the claims below. And can be changed.

Claims (17)

A network communication network which connects a plurality of unspecified communication lines to perform data communication with each other; Receive predetermined form data for member registration from outside according to a member registration request performed by a user who has made a communication connection with an outside that generates and provides an encryption file through the network communication network, and according to form data provided from the outside Outputs the member registration data input by the user and externally receives and saves the user's unique key generated at the time of member registration, and externally stores the specific media file request data input by the user who has confirmed a plurality of externally registered media files. When the user requests the user's request, the user receives a specific one-click encryption file (SOM file) whose header part is encrypted with the user's unique key from the outside, and automatically plays the playback environment when the user's one-click encryption file (SOM file) is executed. After construction, the encryption using the stored user's unique key One to decode the (SOM file), a plurality of user computer that is reproduced through a desired reproduction program; And Encrypts various media files with a key generated regardless of a specific user through a password file generator, generates an encryption file (SOM file), converts it into a one-click encryption file (SOM file) that can be automatically executed, and stores it in a database. When a user who performs a communication connection through the network communication network registers a user by inputting a unique ID and password, a user's own key is generated and stored in the database, and the user's file transfer request is generated. And encrypts the header portion of the specific one-click encryption file (SOM file) stored in the database with the user's own key, and includes a server computer transmitting the encrypted one-click encryption file (SOM file) to the corresponding user computer. Create and re-enable encrypted files regardless of the type of player System. The method of claim 1, wherein the server computer, A password file generator for driving an encryption file (SOM file) generator and a one-click encryption file (SOM file) generator to generate a provisional one-click encryption file (SOM file) from the original file; A one-click encryption file (SOM file) that stores a plurality of temporary one-click encryption files (SOM files) generated by the password file generator and outputs a specific one-click encryption file (SOM file) at the request of the server computer. A) database; And An encryption file irrespective of the type of the playback program, comprising a user database for storing ID, password, and personal information input by the user who performed membership registration and key information unique to the user generated on the server computer. Generation and playback system. The method of claim 2, wherein the temporary one-click encryption file (SOM file), An encryption file generation and playback system irrespective of the type of a playback program, characterized in that the file is before the final one-click encryption file (SOM file) is made without encryption for a specific user. The method of claim 1, wherein the encryption file (SOM file), A [Header] section containing information about an encryption file (SOM file); And An encryption file generation and playback system irrespective of the type of a playback program, characterized in that the media file includes an encrypted original file. The method of claim 4, wherein the [Header] portion, A Version portion that represents a corresponding version of the encryption file (SOM file) and is unencrypted pure code; And An encryption file generation and reproduction system irrespective of the type of a playback program, which includes all information used in the encryption file (SOM file) and includes an encrypted [Info] part. The method of claim 5, wherein the [Info] portion, A [Source] section containing information about the original file about the file name, media type, and other additional information; [Owner] section containing copyright and user information about the producer, seller, buyer, current user, and all current users; A [Rules] section, which includes a Registered [Rule], an Unregistered [Rule], and an Applied [Rule] section and contains various rules for using the encryption file (SOM file) regarding the official use or the demo version use; And Regardless of the type of playback program, it is created regardless of the specific user and is used to encrypt the original file in the encryption file (SOM file) generator and includes a key part used to decrypt the original file at the time of playback. Encrypted file creation and playback system. The method of claim 6, wherein each [Rule] of the [Rules] portion, A flag for deciding which of three conditions, time, number of executions, and usage ranges to use; A time for storing information on a time condition so that the media can be played for a specific time; A number of executions in which information on the number of execution conditions is stored so that the media can be played for a specific number of times; And An encryption file generation and playback system irrespective of the type of a playback program, comprising a usage range for storing information on the usage condition so that only a specific portion of the media can be played. The method of claim 1, wherein the one-click encryption file (SOM file), Automatic release file that recognizes and separates the installer, encrypted file (SOM file) filter, encrypted file (SOM file) playback agent, and encrypted file (SOM file) into separate file types. Self-extractor file); Data information in which information on the size of each element constituting the one-click encryption file (SOM file) is recorded; Encrypt encryption program (SOM file) connection program while installing encryption file (SOM file) filter, encryption file (SOM file) playback agent, and encryption file (SOM file) to the designated location of the user's hard disk An installer that sets up a file (SOM file) playback agent; It is located at the system level of the user's computer, detects file input / output (I / O) as a file system, and performs the necessary processing for the encryption file (SOM file). An encryption file (SOM file) filter for executing the decryption of the encryption file (SOM file) with the user's unique key stored in the user's computer to reproduce the contents of the original file; The encryption file (SOM file) filter is loaded into the memory of the user computer to decrypt the encryption file (SOM file), and a playback program is executed to play the media type recorded in the header portion of the encryption file (SOM file). An encryption file (SOM file) replay agent for reproducing the original file; And An encryption file generation and playback system irrespective of the type of a playback program, comprising an encryption file (SOM file) that encrypts an original file together with information about an encryption file (SOM file). The method according to claim 1 or 8, wherein when a user who has received a specific one-click encryption file (SOM file) from the server computer executes to play the one-click encryption file (SOM file), The Encryption File (SOM File) Replay Agent and Encryption File (SOM File) filters included in the one-click encryption file (SOM file) are each installed in a specific location on your computer's hard disk. Encrypted File (SOM File) After the Replay Agent runs and loads the Encrypted File (SOM File) filter installed at the system level into memory, it encrypts the Encrypted File (SOM file) through a playback program suitable for the playback of the Encrypted File (SOM file). Encryption file generation and playback system irrespective of the type of the playback program, characterized in that the decrypted to play immediately. The method of claim 9, wherein the encryption file (SOM file) filter, A system for generating and reproducing an encrypted file irrespective of the type of a playback program, wherein the decrypted content is prevented from being stored as it is. The method of claim 1, wherein after the one-click encryption file (SOM file) transmitted from the server computer is executed to establish an environment in which the encryption file (SOM file) can be executed, The user can play the original file by directly executing the encrypted file (SOM file), or select the encrypted file (SOM file) and play the original file within a specific player program. Irrelevant encrypted file creation and playback system. 12. The method of claim 11, wherein when a user selects an encryption file (SOM file) in a specific playback program that he or she wants to play back the original file, Encryption file (SOM file) filter generation and playback system, regardless of the type of playback program, characterized in that the filter is loaded in the memory. (1) The server computer generates a temporary encryption file (SOM file) by encrypting a plurality of original media files using a key generated regardless of a specific user, and automatically executes the temporary encryption file (SOM file). Converting the temporary one-click encryption file (SOM file) into a one-click encryption file (SOM file) database; (2) Based on the member registration data for use of the encryption file (SOM file) inputted by the user who has accessed the communication through the network communication network from the server computer, the user's unique key is generated and stored in the user database, and created when registering the member. Transmitting the user's unique key to a corresponding user computer to store the user's unique key; (3) The header part of the provisional one-click encryption file (SOM file) stored in the one-click encryption file (SOM file) database, which checks the license for using the original file from the user on the server computer according to the user's specific original file request. Transmitting a one-click encryption file (SOM file) to the corresponding user computer through the network communication network after encrypting the ID with a corresponding user unique key; And (4) The user who has received the one-click encryption file (SOM file) from the server computer executes the one-click encryption file (SOM file) to perform decryption and play it on the user's computer. A method for generating and playing an encrypted file irrespective of the type of the playing program, comprising the step of decrypting and playing an encrypted file (SOM file) in real time through a playing program. The method of claim 13, wherein the process (1), (1-1) acquiring various original media files from the plurality of media file holders at the server computer; (1-2) encrypting the original media file using the generated key regardless of the specific user; (1-3) generating a temporary encryption file (SOM file) by combining the header and the encrypted original media file after including the generated key regardless of the specific user in the header; (1-4) converting the temporary encryption file (SOM file) into a temporary one-click encryption file (SOM file) in an auto-executable form; And (1-5) A method for generating and reproducing an encryption file irrespective of the type of a playback program, comprising storing a temporary one-click encryption file (SOM file) in a one-click encryption file (SOM file) database. The method of claim 13, wherein the process (2), (2-1) a specific user performing a communication connection to a server computer through a network communication network; (2-2) determining whether a user who has made a communication connection to the server computer performs a login or requests a new member registration to use an encryption file (SOM file); (2-3) when the user inputs the login data of the ID and password, checking the membership on the server computer and outputting initial screen data to the corresponding user computer; (2-4) if the user requests new member registration as a result of the determination in step (2-2), outputting predetermined form data for member registration from the server computer to the corresponding user computer; (2-5) determining whether the corresponding user inputs member registration data of ID, password, and personal information; (2-6) generating a corresponding user unique key based on the member registration data input by the user and storing the user unique key together with the member registration data input by the user in a user database; And (2-7) a step of outputting initial screen data from the server computer to the corresponding user computer that has performed member registration and transmitting the user's unique key generated at the time of member registration and storing it on the user computer. How to create and play encrypted files regardless of the type of playback program. The method of claim 13, wherein the process (3), (3-1) determining whether a user connected to the server computer selects a specific file from among a plurality of original media files registered on the server computer; (3-2) checking a license for using the file from the server computer to the corresponding user computer that requested the specific original file; (3-3) determining whether the acquisition of a license according to the use of the file from the user is performed; (3-4) encrypting the header portion of the temporary one-click encryption file (SOM file) stored in the one-click encryption file (SOM file) database on the server computer with the corresponding user's unique key when the license for using the original file is confirmed; And (3-5) A method for generating and playing an encrypted file irrespective of the type of a playback program, comprising the step of transmitting a one-click encryption file (SOM file) to a corresponding user computer through a network communication network. The method of claim 13, wherein the process (4), (4-1) determining whether the user who has received the one-click encryption file (SOM file) from the server computer executes the one-click encryption file (SOM file); (4-2) When the user executes the one-click encryption file (SOM file), the encryption file (SOM file) included in the one-click encryption file (SOM file) for the construction of an environment where decryption and playback can be performed simultaneously. ) Install Replay Agent and Encrypted File (SOM File) Filter in a specific location on your computer's hard disk, save the Encrypted File (SOM file) on your computer, and then encrypt the associated program in the Encrypted File (SOM file). (SOM file) setting up as a playback agent; (4-3) After installing the encrypted file (SOM file) playback agent, the encrypted file (SOM file) filter, and the encrypted file (SOM file) on the user's computer, determine whether the user executes the encrypted file (SOM file). Doing; (4-4) When the encrypted file (SOM file) is executed, the encrypted file (SOM file) replay agent is executed to load the encrypted file (SOM file) filter into the memory, and the user's owned file transmitted from the server computer at the time of membership registration. Verifying a media type by decrypting a header portion of an encryption file (SOM file) with a key; And (4-5) A playback comprising the step of executing a playback program connected to the identified media type and decrypting and playing the encrypted file (SOM file) in real time with an encryption file (SOM file) filter. How to create and play encrypted files regardless of the type of program.