KR20030015742A - System for tracking down illegal copies and distribution of digital contents - Google Patents

Abstract

PURPOSE: A system for chasing an illegal copy and an unauthorized distribution of digital contents is provided to chase an illegal copy and an unauthorized distribution of an illegal contents being distributed on the Internet through a client agent such as an illegal contents chasing program. CONSTITUTION: An illegal contents chasing program(120) loaded in a client(115) chases Illegal contents which exist on the Internet or a P2P sharing network. Th chased result is transmitted to an illegal contents keeper(110). A

Description

System for tracking down illegal copies and distribution of digital contents}

The present invention relates to a method for tracking illegal copying and unauthorized distribution of illegal contents (Illegal Contents) distributed on the Internet through a client side agent such as an illegal copyright tracking program. (Illegal Contents Surveillant) downloads and installs a client agent program that tracks illegal works on his client, and then downloads and stores information for tracking illegal works from illegal work monitors, and enables the client to surf the web. Monitors and extracts link information from Hyper Text Markup Language (HTML) documents of websites visited by Internet users, and illegal works of digital contents linked to digital contents stored on the website from the extracted link information. How to make wealth, and the digital content information turned out to be illegal assets automatically and reports to monitor illegal work, the present invention relates to a method for receiving illegal asset tracking expenses, such as mileage points and reserve equivalent from illegal work supervisor.

Due to the development of information and communication fields such as computer technology and network infrastructure, the computer and internet users are rapidly increasing, and as the client or the Internet user is recognized as the recipient of digital content, the text information, which has been transmitted through offline media, Various contents such as images, audio, and video are being digitized, and some contents are generated as digital contents that can only be used as digitized media from the beginning.

Unlike the existing offline content, digital content can be easily copied in bulk without damage to the original by the client or the Internet user. This means that the same digital content as the original can be distributed without restriction by the copyright holder without permission from the information and communication infrastructure. It means you can do it. Such mass duplication and unauthorized distribution of digital content is damaging not only materially but also mentally to the copyright holder who owns the intellectual property rights of the digital content, which causes the quality of the digital content to be prevented from being produced. Moreover, the mass duplication and unauthorized distribution of illegal works under the name of wrong information sharing make it possible to distribute illegal works to the distributors and illegal acquirers of the illegal works.

With respect to the illegal works described above, various techniques for protecting the rights of copyright holders by preventing unauthorized copies of illegal works and mass distribution have been studied. Among them, methods for preventing illegal copying of representative digital contents include How to make sure that only legitimate users have access to digital content through a process called user authentication, and make digital content available only to authorized users and cryptographic systems with cryptographic keys through encryption processes such as scramble and descramble And tracking copyright information by inserting copyright information directly into digital content. Among the technologies that have been put into practical use or under development are digital rights management (DRM) technology, which encrypts digital content so that it is executed only by legitimate users who paid the fee, and includes copyright information in digital content to track illegal copying and distribution. Watermarking technology to prevent, and Digital Property Protection (DPP) technology to prevent illegal copying by manipulating the properties of digital content to limit execution time or print function.

DRM is a management method that performs license authentication, copyright and approval history management, content usage rights and approval enforcement, and payment for the use of content through an authorized content delivery environment and network infrastructure. It is a digital content management technology that generates digital content as an encrypted file and distributes it through a portable storage device such as the Internet or a CD, and then permits the use of the content only to a legitimate user who pays the fee for the digital content. The digital content distributed through DRM can be freely redistributed by the user, and the digital content can not be used without paying the fee as a way to pay the fee in the process of using the digital content.

However, most existing encryption techniques are easily destroyed by simple operations, and even if the digital contents are encrypted through high-level encryption techniques, the structure of the encryption pattern can be easily disassembled. Furthermore, if a user who has obtained the right to use digital content through a legal process redistributes the digital content with his own authentication key or steals another's authentication key in an improper way, illegal copying cannot be prevented at the source. .

Watermarking in the classical sense is a mark in which the producer or owner of a book or a work of art is indistinguishable from the naked eye in order to prove ownership of the work, and mainly uses water, special ink, or medicine. In contrast, digital watermarking (hereinafter referred to as watermarking) inserts copyright information in the form of digital data that cannot be identified through human sense organs, such as classic watermarking, to digital content existing on a computer or the Internet.

The above watermarking is applicable to digital content such as text, images, audio, and video data, and the representative watermarking techniques applied to digital content are as follows.

Text watermarking is a technique of inserting a watermark by changing the shape of letters used in the content little by little, adjusting the space between letters, or arbitrarily adjusting the line spacing. The method of inserting a watermark by changing it.

Image watermarking is a technology that inserts copyright information, which is difficult to distinguish from human vision, into image data by using attributes of human visual system (HVS). Accordingly, there are visible watermarking and invisible watermarking. Invisible watermarking includes spatial domain watermarking and frequency domain watermarking.

Audio watermarking is a technology that inserts copyright information into noise data that is hard to be distinguished by human hearing using the property of Human Autitory System (HAS), which requires more than 10MB of storage space per minute. Audio data can be compressed to tens of kilobytes using various compression codecs, and audio watermarking and compression codecs are used to solve the copyright problem caused by unlimited distribution of compressed audio data over the Internet. Meet the requirements for robustness and inaudibility.

Similar to image watermarking, video watermarking inserts copyright information into video data using HVS or copyright information into video data using HVS and HAS. It has a feature to be detected.

DPP technology compensates for some of the disadvantages of watermarking described above, and is a form of copyright protection technology that is more aggressive than DRM. It is a piracy prevention technology that allows users to download or use contents only to legitimate users by installing software protection on users' computers. to be.

DPP can limit the usage time, frequency of use, duration of use, printing, and copy and paste of the contents by using the attributes of digital contents, and prevent the contents from being saved on the hard disk by using streaming techniques. In addition, even a legitimate user is required to go through an additional authentication process to redistribute the content, thereby protecting the copyright of the digital content. In addition, unlike DRM, DPP protects the copyright of the content by using the property of digital content itself, so it can be applied not only to the existing Internet of client server system but also to peer-to-peer (P2P), a data transmission system for individuals. In addition, since digital contents can be used only by installing a software shield on a computer, it is possible to collectively manage not only a specific file but also multiple files.

However, such anti-piracy techniques only have some effects of blocking access to digital contents in an inappropriate manner, and do not prevent illegal copying and unlimited distribution of digital contents. The illegal copying of digital content is widely conducted by Internet users who have acquired digital content in an inappropriate manner as well as by Internet users who have obtained digital content in a normal manner. It is encouraging unauthorized distribution. In such a situation, simply excluding an inappropriate user's access to the digital content itself through encryption techniques only prohibits access to illegal works, but cannot prevent theft of digital content itself.

An object of the present invention to solve the above problems is to track the illegal copying and unauthorized distribution of illegal content (Illegal Contents) that are distributed on the Internet through a client agent (Client Side Agent) such as illegal copyright tracking program To this end, an Internet user downloads and installs a client agent program that tracks illegal works on his client from an illegal content surveillant, and then tracks illegal works from the illegal work monitor. In addition to downloading and storing the information for the web browser, the client can monitor web surfing and extract link information from HTML (Hyper Text Markup Language) documents of websites visited by Internet users. Di How to identify illegal works of digital content linked to full content, and digital content information that turns out to be illegal works is automatically reported to the illegal work watcher, and the corresponding illegal work tracking costs such as mileage points or reserves are illegal. The present invention provides a system for implementing a method provided by a copyright monitor.

1 is a simple block diagram of a method for transmitting a result to an illegal copyright monitor through an illegal copyright tracking program distributed from an illegal copyright monitor and mounted on a client.

2 is a simple block diagram of an illegal copyright monitor that monitors illegal copyrights through an illegal copyright tracking program mounted on a client.

3 is a simple block diagram of a copyright information RDBMS of an illegal copyright monitor.

4 is a simple block diagram of an illegal asset tracking program mounted on a client.

5 is a simple flowchart of a process of searching for an illegal work by an illegal work searching unit in an illegal work tracking program.

FIG. 6 is a simple flowchart illustrating a process of searching for an illegal work by using an asset information RDBMS by an illegal work search unit in an illegal work tracking program.

7 is a simple flowchart illustrating a process of checking whether an illegal copyrighted work or existence of verifiable copyright information exists for digital content downloaded from an illegal copyright tracking program.

8 is a simple flowchart of a process in which an illegal asset management unit pays illegal asset tracking costs such as mileage points to a client.

9 is a simple block diagram of an illegal copyright tracking system using watermarking.

10 is a simple flowchart illustrating a process of checking whether an illegal copyright tracking program has illegal copyrighted digital content through a watermarking information provider.

11 is a simple block diagram of a process of converting an analog music CD into audio content such as MP3.

FIG. 12 is a simple flowchart of a process in which an illegal copyright tracking program verifies whether or not an illegal copyrighted work is illegal through digital recording information provided by a record producer by digital content including a copyright sampling code included in a music CD. to be.

<Description of main parts of drawing>

100: copyright holder 105: copyright information provider

110: illegal asset watcher 115: client

120: illegal work tracking program 125: web (P2P) browser

130: content provider (P2P sharer)

The present invention relates to a method for tracking illegal copying and unauthorized distribution of digital content using a client agent. The present invention provides a client with an illegal copyright tracking program distributed by an illegal copyright monitor, which monitors the client's web surfing, How to automatically track and search illegal works on websites and P2P sharing networks to visit, identify illegal works, report the results to illegal work watchers, and illegal to clients and Internet users who track illegal works A method of paying for tracking works.

In the present invention, the illegal work refers to digital content distributed without receiving a distribution right based on the law from the copyright holder who owns the legal copyright to digital content or the copyright information provider who creates and manages the basis of the copyright. In addition, a content provider or P2P sharer who distributes or sells such illegal works or shares them on the Internet or a P2P sharing network becomes an illegal work distributor.

Figure 1 tracks illegal works existing on the Internet or P2P sharing network through the illegal copyright tracking program 120 distributed from the illegal copyright monitor 110 and mounted on the client 115, and the result is illegal. A simple block diagram of how to send to the monitor 110.

According to the present invention, a copyright holder (100) who owns legal copyrights for digital content, a copyright information provider (105) managing copyright information of a copyright holder, and an illegal copyright monitor (110) for monitoring illegal works on the Internet or P2P sharing network And, through the illegal copyright tracking program 120 distributed from the illegal copyright monitor 110 is composed of a client 115 for tracking illegal copyrights that actually exist on the Internet or P2P sharing network.

The copyright holder 100 is a substantial owner of digital content that can protect the actual ownership of the digital content by a related law or can prove the ownership of the digital content. Have the right to

The copyright information provider 105 is an authority that manages copyright information on digital content owned by the copyright holder 100. In some cases, the copyright holder 100 may be the copyright information provider 105, but generally the copyright information is provided. The provider 105 is a company or an organization that entrusts copyrights from a plurality of copyright holders 100 and collectively manages them.

The copyright information provider 105 includes a digital content copyright information provider 105 and an analog content copyright information provider 105, and the digital content copyright information provider 105 provides copyright information such as watermarking embedded in the digital content. Although the provider of the analog content copyright information 105 is sold offline, the offline analog content that can be easily digitalized by the content provider or the P2P sharer 130, etc. It is an institution that provides copyright information that is automatically inserted.

A representative example of the digital content copyright information provider 105 is a watermarking producer, who inserts copyright information into digital content owned by the copyright holder 100 and provides the information to the illegal copyright monitor 110. .

A representative example of the analog content copyright information provider 105 is a record producer, and a record producer is a record that is released offline, so that copyright information is automatically inserted into a music file in the process of being converted into digital content such as MP3. Produce and provide the information to the illegal copyright monitor (110).

The commonality between the digital content copyright information provider 105 and the analog content copyright information provider 105 is that it provides copyright information for content that is digitized and distributed on the Internet or P2P sharing network. The difference is that the digital content copyright information provider 105 ) Provides the copyright information embedded in the digital content, whereas the analog content copyright information provider 105 provides the copyright information automatically inserted in the corresponding content in the process of digitizing the offline analog content.

The illegal copyright monitor 110 is an agency that tracks illegal works distributed or circulated on the Internet or P2P sharing network based on copyright information provided by the copyright information provider 105, and obtained from various copyright information providers 105. Based on the copyright information, an illegal copyright tracking program 120 that tracks illegal copyrights is generated, which allows the client 115 or Internet users to track illegal copyrights.

In the present invention, the client 115 refers to a web surfing system or a P2P sharing network user that includes the illegal copyright tracking program 120 distributed from the illegal copyright monitor 110, and the illegal copyright tracking program 120 is a client ( By monitoring the web surfing or P2P sharing network usage of 115, the illegal works that are distributed or shared by the content provider or P2P sharer 130 visited by the client 115 are tracked, and the result is sent to the illegal copyright monitor 110. send.

2 is a simple block diagram of an illegal copyright monitor 110 for monitoring illegal copyrighted works through the illegal copyright tracking program 120 mounted on the client 115.

Illegal asset monitor 110, illegal asset tracking program distribution unit 200, illegal asset management unit 205, mileage D / B (215), illegal asset D / B (220), asset information RDBMS (Relational DataBase Management System) 225, and illegal copyright processing unit 210 and the like.

The illegal asset tracking program distribution unit 200 is responsible for distributing the illegal asset tracking program 120 to the client 115, and the client 115 before the illegal asset tracking program 120 is distributed to the client 115. Make sure that the user fully understands the license agreement of the illegal copyright tracking program 120, and is mounted only on the client 115 who has agreed to the license agreement.

The illegal copyright management unit 205 manages the illegal copyright tracking program 120 mounted on the client 115 by the illegal copyright tracking program distribution unit 200 through the copyright information RDBMS 225, and the illegal copyright tracking program 120. In addition to storing the illegal work information transmitted from the illegal work D / B (220), the charge of tracking the illegal work of the client 115, and stores the mileage D / B (215).

The mileage D / B 215 is a D / B that stores information about the illegal work tracking cost paid to the client 115 or the Internet user who transmitted the information about the illegal work to the illegal work monitor 110, and is illegal. The client 115 stores information on the asset tracking program 120 and information on illegal asset tracking costs such as mileage points for the client 115.

The illegal work D / B 220 is a D / B that stores information related to the illegal work transmitted from the illegal work tracking program 120 mounted on the client 115, and is distributed on the Internet or P2P sharing network. It stores information about all illegal copyrighted works in circulation.

The copyright information RDBMS is a relational database management system that stores information necessary for the illegal copyright tracking program 120 mounted on the client 115 to extract illegal copyrights from digital content distributed on the Internet or P2P sharing network. The copyright information provided by the copyright information provider 105 is stored.

The illegal copyright processing unit 210 is responsible for processing illegal copyrighted works stored in the illegal copyright work D / B 220, and sends an alert mail to the illegal copyright distributor or provides copyright information for the digital content. (105) or to provide copyright holders with illegal copyright information, so that illegal copyright distributors distributing illegal copyrights on the Internet or P2P sharing network can claim legal liability and economic damages.

The illegal copyright management unit 205 manages the illegal copyright tracking program 120 of the client 115 as follows.

When the illegal copyright tracking program 120 of the client 115 is executed, the illegal copyright tracking program 120 accesses the illegal copyright management unit 205 to update illegal copyright tracking information of the copyright information RDBMS. Through the updated information, the illegal work tracking program 120 of the client 115 monitors the web surfing or P2P sharing network usage of the client 115, and the content provider or P2P sharer 130 visited by the client 115. ) Detect the existence of illegal works.

When illegal works are detected by the illegal copyright tracking program 120 of the client 115, the illegal copyright tracking program 120 automatically transmits the illegal copyright information to the illegal copyright management unit 205.

When the illegal copyright information is transmitted from the illegal copyright tracking program 120 of the client 115 to the illegal copyright management unit 205, the illegal copyright management unit 205 transmits the content provider or P2P sharer 130 through the copyright information RDBMS 225. ) To finalize the existence of illegal works. Then, if it is finally confirmed from the content provider or the P2P sharer 130 that the illegal work exists and illegally distributes, distributes, or shares the illegal work, the illegal work management unit 205 uses the illegal work D / B ( 220, and updates the information of the mileage D / B 215 for the client 115 to calculate the illegal work tracking cost.

When the illegal work tracking cost settlement for the client 115 tracking the illegal work is completed, the illegal work management unit 205 transmits the result to the illegal work tracking program 120 of the client 115.

When the above-described series of processes are completed, the illegal copyright management unit 205 receives information on the content provider or P2P sharer 130 who distributes or distributes illegal copyrighted materials through the illegal copyright processing unit 210 of the corresponding digital content. After the copyright is transferred to the copyright holder 100 or the copyright information provider 105 who owns the copyright or delegates the right, the operation of blocking the unauthorized distribution or distribution of the corresponding digital content is started.

The method of blocking illegal distribution or distribution of digital content by the illegal copyright distributor in the illegal copyright processing unit 210 varies greatly from sending a simple warning mail to legal criminal prosecution. Is made by request or delegation to the copyright holder 100 who owns the copyright holder and the copyright information provider 105 who delegates it.

3 is a simple block diagram of the copyright information RDBMS 225 of the illegal copyright monitor 110.

The copyright information RDBMS is a relational database management system that stores copyright information provided from the copyright information provider 105. The copyright D / B 305 stores information on digital content that the illegal copyright monitor 110 wants to track. And link information D / B 300 storing link information of digital content, and text information D / B 310 and image information D / B storing information necessary to extract copyright information from each digital content. 315, audio information D / B 320, video information D / B 325, and the like.

The copyright D / B 305 is a D / B that stores copyright information on digital content tracked by the illegal copyright monitor 110 and all information on the digital content, and is transmitted by the illegal copyright tracking program 120. Provide information necessary to analyze information of illegal copyrighted works. The copyright information D / B 305 includes link information D / B 300 and character information D / B 310. Image information D / B 315, audio information D / B 320, and video information D / B 325 are connected to a relational database management system.

The link information D / B 300 is a D / B that stores link information of digital content tracked by the copyright D / B 305, and stores both link information of legitimate works and link information of illegal works.

Link information of legitimate works is information such as link addresses and content providers that distribute or distribute the digital content through legitimate procedures, and the illegal work management unit 205 and the illegal work tracking program 120 provide link information of legitimate stores. You can quickly check whether the digital content is a legitimate work.

For example, the legitimate link information of the real-time video digital content tracked by the illegal copyright monitor 110 is http://www.lawfull.com/content/movie.asf, which is http: //www.lawfull. If only .com is allowed to distribute, any content provider who distributes the digital content without permission will be an illegal distributor.

The illegal work link information is link information of the illegal work finally confirmed by the illegal work management unit 205, and is updated by the illegal work management unit 205, and can quickly identify the illegal distributor who redistributes and redistributes the illegal work. . For example, if the illegal copyright management unit 205 confirms that http://www.illegal.com/pds/movie.avi is illegal, among the illegal copyright information transmitted from the illegal copyright tracking program 120, the illegal copyright management unit By storing this link information in the link information D / B 300, 205 can quickly identify the illegal distributor who redistributes and redistributes the digital content.

The text information D / B 310 is a D / B that stores information necessary for extracting copyright information inserted in the digital content in the form of text from the digital content tracked by the copyright D / B 305. The watermarking information included in the digital content and the arrangement form of specific words are stored.

The image information D / B 315 is a D / B that stores information necessary for extracting copyright information embedded in digital content in the form of an image from digital content tracked by the copyright D / B 305, and is an image type. It stores watermarking information and specific image patterns included in digital content.

The audio information D / B 320 is a D / B that stores information necessary for extracting copyright information inserted in the digital content in the audio form from the digital content tracked by the copyright D / B 305. It stores watermarking information and specific sampling codes included in digital content.

The video information D / B 325 is a D / B that stores information necessary for extracting copyright information inserted in the digital content in the form of video from the digital content tracked by the copyright D / B 305. It stores watermarking information and specific video information included in digital content.

The copyright information RDBMS 225 is updated by the copyright information provided by the copyright information provider 105 or is automatically updated by the illegal copyright management unit 205, and the updated contents include the illegal copyright tracking program 120. It is transmitted to the client 115 to automatically update the asset information RDBMS of the illegal copyright tracking program 120 of the client 115.

4 is a simple block diagram of the illegal copyright tracking program 120 mounted on the client 115.

The illegal work tracking program 120 mounted on the client 115 may include a work information update unit 400 and a work information RDBMS 405 for receiving work information from the illegal work management unit 205 of the illegal work monitor 110. Web surf tracking unit 410 for tracking web surfing of the client 115, asset information extraction unit for extracting digital content information from the content provider or P2P sharer 130 visited by the client 115 (based on the web surfing information) 425), an illegal copyright search unit 420 for searching for illegal works from the extracted digital content, and an illegal copyright transfer unit 415 for transmitting the retrieved illegal copyright information to the illegal copyright management unit 205.

The asset information updating unit 400 receives the recently updated asset information from the illegal asset management unit 205 and updates the asset information RDBMS 405 of the illegal asset tracking program 120 of the client 115. The copyright information RDBMS 405 of the illegal copyright monitor 110 and the copyright information RDBMS 405 of the illegal copyright tracking program 120 are synchronized by the copyright information updater 400.

The copyright information RDBMS 405 of the illegal copyright tracking program 120 has the same structure as the copyright information RDBMS 405 of the illegal copyright monitor 110, and the illegal copyright monitor 110 is performed by the copyright information update unit 400. The copyright information of the RDBMS 405 is synchronized.

The web surfing tracking unit 410 tracks the web browser and the P2P browser of the client 115 to track all content providers and P2P sharers 130 visited by the client 115. When the client 115 accesses a specific content provider, the web browser reads the HTML code of the website visited by the client 115, and outputs the website on the web browser screen using this. At this time, the web surfing tracking unit 410 tracks the content provider visited by the client 115 by reading the URL information and the HTML code output on the screen from the web browser.

The asset information extraction unit 425 selectively extracts only the link information from the HTML code extracted by the web surfing tracking unit 410. The extracted link information and the URL information are once stored in the illegal asset extraction program. In addition, the illegal work search unit 420 is transmitted.

The reason for temporarily storing the link information and the URL information extracted from the asset information extracting unit 425 to the illegal asset searching unit 420 immediately is because the illegal asset searching unit 420 searches for illegal works of digital content. This is because the time required to make a lot of difference depends on the capacity and number of digital contents.

The illegal copyright search unit 420 checks whether the digital content linked to the link information is an illegal copyright based on the information obtained from the copyright extractor 425 and the copyright information stored in the copyright information RDBMS 405. Do this. The illegal copyright search unit 420 checks whether the illegal content is illegal in the digital content linked to the link information.

When the URL information and the link information are transmitted from the copyright information extracting unit 425 to the illegal asset searching unit 420, the illegal asset searching unit 420 uses the information stored in the link information D / B 300 to perform the corresponding operation. Make sure your digital content is illegal. If it is not possible to confirm whether the digital content is an illegal work only by the link information, the illegal copyright search unit 420 directly downloads the digital content based on the link information, and then extracts copyright information stored in the digital content. Check for illegal works.

The illegal asset transmission unit 415 transmits the illegal asset information identified by the illegal asset retrieval unit 420 to the illegal asset management unit 205, and the illegal asset information is transmitted by the illegal asset management unit 205. Once again, it is checked for illegal work.

FIG. 5 shows that the illegal copyright tracking unit 420 has the link information D / B 300 of the copyright information RDBMS 405 and the web surfing tracking unit 410 from the illegal browser tracking program 120. The extracted URL information and the asset information extracting unit 425 are simple flow charts for searching for illegal works by using link information of digital content extracted from the HTML code of the web surf extracting unit 425.

The illegal asset tracking program 120 tracks web surfing or P2P sharing network usage of the client 115 in real time, and when the client 115 accesses a specific content provider or P2P sharer 130, the web surfing tracking unit 410 Extracts the URL information of the corresponding content provider and the HTML code output on the screen of the web browser 125 (500).

If the client 115 accesses the P2P sharer 130 on the P2P sharing network through a specific P2P application other than the web browser 125, the web surfing tracking unit 410 of the illegal copyright tracking program 120 may check the P2P. By extracting the information received through the communication port used by the application, the IP address and the shared data information of the P2P sharer 130 is extracted.

When the URL information and the HTML code of the content provider to which the client 115 accesses are extracted by the web surfing tracking unit 410, or the IP address and the shared material information of the P2P sharer 130 are extracted, the asset information extraction unit 425. ) Selectively extracts only link information of the digital content from the information (505).

The method of extracting the link information of the digital content from the HTML code is to extract only the string corresponding to the link address from the HTML code in the form of a character, and the HTML code used at this time is output to the web browser 125 of the client 115. will be. The HTML code stored in the content provider's web server includes a fixed form of HTML code and HTML code that dynamically changes according to a user, including a script, but when they are output to the client 115 web browser 125, It is converted into complete HTML code, and the HTML code can be used to easily extract the link information of the digital content.

When the asset information extracting unit 425 extracts the digital content link information of the content provider or P2P sharer 130 connected to the client 115, the illegal asset searching unit 420 may link information D of the asset information RDBMS 405. In step 510, the same information as the link information extracted from the / B 300 is searched for. At this time, the illegal copyright search unit 420 uses both legal copyright information and illegal copyright information of the link D / B, and when information matching the link information of the digital content is found (515), the link information of the digital content is searched. Check whether it is an illegal work (520).

On the contrary, if there is no matching link information (525), the illegal work search unit 420 ends the search for illegal works using the link information. Searching for illegal works by using link information is characterized by identifying illegal works without downloading the corresponding digital contents.

By using the digital content link information retrieved by the illegal copyright search unit 420, a method of confirming whether the digital content is illegal is based on whether the corresponding link information is found from the legitimate asset link information and the illegal asset link information. different.

If the digital content link information is retrieved from the legitimate work link information of the link information D / B 300, the illegal work search unit 420 uses the URL of the HTML code that contains the link information of the digital content, and the corresponding digital content. Make sure you are distributing or distributing the URL from an allowed URL on the Internet or P2P sharing network.

If you are distributing the digital content at an authorized URL, the digital content is legitimate digital content and, conversely, if you are using the link information of the digital content at a URL other than the same permitted URL, the URL becomes an illegal distributor. This digital content becomes illegal work on the website.

On the contrary, if the digital content link information is found in the illegal work link information of the link information D / B 300, the illegal work link information is about the digital content finally confirmed by the illegal work management unit 205, and thus the digital content found at this time. It becomes an illegal work without any special confirmation.

Through the above method, if it is confirmed that the link of the digital content is an illegal work (530), the illegal work transmission unit 415 transmits the result to the illegal work management unit 205 (535), and uses the link information. Terminate illegal work tracking once.

FIG. 6 is a simple flowchart of a process of searching for an illegal copyrighted work by the illegal copyright search unit 420 using the copyrighted work information RDBMS 405 in the illegal copyright tracking program 120.

When the copyright information extracting unit 425 extracts link information of the digital content (600), the illegal copyright search unit 420 performs an illegal copyright search through the link information through a process as shown in FIG. If the illegal work of the digital content cannot be identified through the illegal work searching through the link information, the illegal work searching unit 420 starts to download the digital content through the link information (605).

At this time, the illegal copyright search unit 420 does not download all the digital content, but downloads the copyright information as much as the minimum unit to extract copyright information, and the size of the minimum unit to be downloaded is the type and type of the file. The detailed description of this part will be given in FIG.

If the illegal copyright search unit 420 downloads and stores the corresponding digital content by the minimum unit for extracting copyright information as described above (610), the illegal copyright search unit 420 checks whether the illegal copyright work is illegal from the downloaded digital content. Check or verify whether there exists a checkable copyright information (615). If the first check whether the illegal content in the downloaded digital content, or verifiable copyright information is confirmed (620), illegal work search unit 420 stops the download of the digital content (625), the identified copyright information By checking whether the digital content is distributed or distributed in a normal manner through the terminal, it is finally confirmed whether the digital content is an illegal work (630).

On the contrary, if the digital content downloaded first cannot be found as illegal work or verifiable copyright information (635), the illegal work search unit 420 repeats the above process until the download of the digital content is completed ( 640).

While the illegal copyright search unit 420 repeats the above process, if the download of the digital content is completed (645), the illegal copyright search unit 420 finally checks whether copyright information exists from the completed digital content (650). ). If the copyright information is confirmed in the digital content that has been downloaded (655), the illegal copyright search unit 420 confirms whether the digital content is legitimate digital content or illegal copyright work through the confirmed information.

On the contrary, if the copyright information cannot be confirmed even in the downloaded digital content (660), the illegal copyright search unit 420 deletes the downloaded digital content (685) and terminates the illegal copyright search for the digital content.

Through the above process, the illegal copyright search unit 420 finally checks whether the digital content is illegal copyright based on the digital content being downloaded or the copyright information confirmed from the downloaded digital content, and then the digital content is If it is distributed or distributed in a lawful manner (665), the illegal copyright search unit 420 deletes the digital content (685), and ends the illegal copyright search.

On the contrary, if the final identified digital content is illegal work (670), the illegal work search unit 420 recognizes the digital content as illegal work, and automatically generates a report to be transmitted to the illegal copyright management unit 205 (675). When a report on illegal works is automatically generated, the illegal work search unit 420 transmits the report to the illegal work management unit 205 through the illegal work transmission unit 415 (680), and then deletes the downloaded digital content. The illegal copyright search is terminated (685).

7 is a simple flowchart illustrating a process of checking whether an illegal copyrighted work or existence of verifiable copyright information exists for digital content downloaded from the illegal copyright tracking program 120.

Digital content exists in the form of a file, and the file is divided into a header and a data area. The header of a file is a field that stores unique values of the file. The file headers for the same file have the same structure and size. The data of the file is an area that includes the actual content stored in the file, and the size of the data area of the file also varies according to the size of the content.

The header of the file stores all the information necessary for the operation of the file, such as the type and type of the file, the total size of the file, the size of the file data, and the presence or absence of compression. Some file headers can vary in size, but Since the header-heading area that must be residing to access the file always has the same structure, it is possible to obtain all the information about the digital content by simply checking the header of the file. In addition, most file headers have a currently unused storage area called reserved space, which is not currently used, but is later used by the designer of the file to ensure that the required storage space is available in advance when a version of the file is upgraded. As the allocated area, it is possible to insert copyright information or a flag which can confirm the presence or absence of copyright information in this area.

Some recently designed files may already have a space for inserting copyright information in the header. In this case, the illegal copyright search unit 420 does not download the entire file, but only the file header has the corresponding digital contents. Copyright information for can be found.

The illegal copyright search unit 420 extracts the extension of the file from the link information extracted by the copyright information extraction unit 425 before downloading the digital content to confirm whether the digital content is an illegal copyright (700). Through this, the header size of the corresponding file is determined (705), and digital content is first downloaded as much as the file header size (710).

When the illegal copyright search unit 420 downloads the digital content as much as the file header size, the header information of the corresponding file is extracted to determine whether the file is of the same type as the extension (715). Recently, Warez sites have altered the extension of digital content they distribute without permission as a way to evade illegal copyright control. In other words, while illegally distributing copyrighted MP3 files on their Warez sites, the file extension is distributed to other types of extensions such as DOC, TXT, etc., and is used as a means of avoiding illegal copyright control.

The illegal copyright search unit 420 may verify whether the digital content currently being searched for is illegal copyrighted work by checking the actual type or form of the corresponding file identified through the extension extracted from the link information and the header information of the corresponding file. If the type and form of the file determined by the extension and the type and form of the file obtained through the header information are different, the digital content is arbitrarily modified. Therefore, the illegal work search unit 420 can check whether the illegal work without downloading all the files through a comparative analysis of the extension of the file and the header information, if the file extension and header information of the file does not match as described above The illegal work retrieval unit 420 regards this as an illegal work, automatically generates an illegal work report (760), and transmits the illegal work report to the illegal work management unit (205) (765).

On the contrary, if the extension and the file header match (725), the illegal copyright search unit 420 searches for the copyright information in real time while downloading the file header and file data of the corresponding digital content (730).

The illegal copyright search unit 420 can search for copyright information in real time while downloading digital content is provided by the copyright information provider 105, the copyright information can be located in the header of the file, It may also exist in the file data area.

The illegal copyright search unit 420 repeats whether the copyright information exists as described above until the copyright is found in the file or when the download of the digital content is completed, and the copyright information is not found and the download of the digital content is completed. If so, the process of searching for illegal works is terminated through the process as shown in FIG.

However, if the illegal copyright search unit 420 checks the copyright information while downloading digital content through the above method (735), the illegal copyright search unit 420 stops downloading the digital content (740). ), Through the copyright information confirmed in the file being downloaded, it is finally confirmed whether the digital content is legal or illegal work (745).

If the digital content is legal (750), the illegal copyright search unit 420 terminates the illegal copyright search for the file. However, if the digital content being downloaded is an illegal work (755), the illegal work search unit 420 automatically generates a report on the illegal work (760), and the illegal work management unit through the illegal work transmission unit (415). After transmission to 205 (765), the digital content downloaded so far is deleted (770), and the illegal work search is terminated.

FIG. 8 shows the illegal work management unit 205 finally checking whether the digital content is illegal work based on the illegal work information received from the illegal work tracking program 120, and tracking illegal works such as mileage points to the client 115. A simple flow chart of the process of paying for expenses.

When the illegal copyright information is transmitted to the illegal copyright management unit 205 by the illegal copyright tracking program 120 of the client 115 (800), the illegal copyright management unit 205 directly accesses the corresponding digital content based on the information. The digital content is finally verified whether it is an illegal work (805). This process is the same as the illegal copyright search unit 420 of the illegal copyright tracking program 120, but more precisely and thoroughly than the illegal copyright search unit 420.

If the digital content is finally verified as an illegal work through the above process (810), the illegal copyright management unit 205 determines the grade of the illegal copyright (815). On the contrary, if it is confirmed in the final verification step that the digital content is not an illegal work (820), the illegal copyright management unit 205 terminates the illegal copyright verification process.

The criterion for the illegal work management unit 205 to determine the class of the illegal work is determined based on the processing criteria requested by the copyright holder 100 or the copyright information provider 105, and additionally, a content provider or P2P who distributes the illegal work without permission. It may vary depending on the distribution intention of the sharer 130.

When the grade of the illegal work is determined, the illegal work management unit 205 stores the result in the illegal work D / B 220 (825), and processes the illegal work through the illegal work processing unit 210 according to the grade ( 830). Criteria for processing illegal works according to the rating are determined based on the processing method requested by the copyright holder 100 or the copyright information provider 105 of the corresponding digital content, and may be additionally changed according to the processing standard of the illegal work monitor 110.

When the illegal work is completed, the illegal work management unit 205 calculates the illegal work tracking cost according to the illegal work class in the form of mileage points or electronic money for the client 115 who tracked the illegal work (835). . The calculated illegal asset tracking cost is stored in the mileage D / B 215 (840) and then transmitted to the illegal asset tracking program 120 of the client 115 (845).

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the following examples are representative of the various methods for explaining the present invention most appropriately, and the present invention is not limited to the following examples.

An embodiment of the present invention will be described by dividing the digital content copyright information provider 105 and the analog content copyright information provider 105 according to the type of the copyright information provider 105, and the digital content copyright information uses watermarking. The analog copyright information uses a specific sampling code of an audio CD that is set to be automatically included in an MP3 file during the digitization process.

FIG. 9 illustrates an illegal copyright tracking system using watermarking, which is a simple case in which a watermarking insertion institution that embeds watermarking into digital content participates as a copyright information provider 105 such as a watermarking information provider 900. It is a block diagram.

The copyright information provider 105 of the illegal copyright tracking system using watermarking is a watermarking embedding authority, and is named watermarking information provider 900 in this embodiment. The watermarking information provider 900 watermarks the copyright information on the digital content of the copyright holder 100, which is inserted in a form that the illegal copyright tracking program 120 can check in real time while downloading the digital content.

Of course, there is a case in which the real-time watermarking is inserted in a form that is impossible, but in this case, since the watermarking can be confirmed after completing the download of the corresponding digital content, the detailed description of the present embodiment is omitted. However, the watermarking to be addressed in this embodiment includes all watermarking techniques used now and in the future.

The watermarking information provided from the worker marking information provider 900 is stored in the copyright RDBMS 225 of the illegal work monitor 110, which is also stored in the copyright RDBMS 225 of the illegal work tracking program 120 of the client 115. The same applies. The watermarking information stored in the copyright RDBMS 405 (225) of the illegal copyright monitor 110 is used in the stage of the final verification of the illegal copyright by the illegal copyright management unit 205, and the watermarking stored in the illegal copyright tracking program 120. The information is used to search whether the illegal content of digital content being distributed from the content provider or P2P sharer 130 visited by the client 115 through the illegal copyright search unit 420.

After the client 115 or the Internet user runs the illegal asset tracking program 120, surfs the Internet through his web browser, or uses a P2P sharing network through a P2P application, the illegal asset tracking program ( 120 tracks web surfing and P2P shared network usage of the client 115 in real time. In the web surfing process, the client 115 extracts the HTML code of the website visited and the storage information of the shared space of the P2P sharer, and stores it in the temporary storage space of the illegal copyright tracking program 120.

The reason for the temporary storage based on the information obtained from the web surfing and P2P sharing network of the client 115 as described above without performing an immediate real-time illegal work search is to prioritize the frequent use of the Internet or P2P sharing network by the customer, This is to perform illegal copyright search when the client 115 temporarily stops surfing the web or using the P2P sharing network.

FIG. 10 is a simple flowchart illustrating a process in which an illegal copyright tracking program 120 checks whether digital content is illegal copyright through a watermarking information provider 900.

If the link information is extracted from the copyright information extracting unit 425 of the illegal copyright tracking program 120 (1000), the illegal copyright searching unit 420 checks whether the illegal copyrighted work using the link information is performed through the process as shown in FIG. (1005). If the illegal work is identified in this process (1010), the illegal copyright monitor 110 writes the result to the report and transmits it to the illegal copyright management unit 205 (1095).

However, if it is not possible to confirm that the digital content is an illegal work in the process of verifying illegal works through link information (1015), the illegal work search unit 420 uses the file extension and header information to determine whether the illegal work is illegal in the same manner as in FIG. 7. Check (1020).

If the illegal copyright search unit 420 confirms that the digital content is illegal copyright in the process of identifying illegal copyright using the file extension and header information (1025), the illegal copyright search unit 420 returns the result to the illegal copyright management unit 205. (1095). On the contrary, if it is not possible to confirm that the digital content is an illegal copyright through comparison analysis of the file extension and header information (1030), the illegal copyright search unit 420 checks whether watermarking is inserted in the header of the file. (1035).

As such, whether or not the watermarking recorded in the file header is inserted is recorded by the watermarking information provider in the reserved space of the file or in an already allocated space, and the related information is provided from the watermarking information provider 900 to monitor illegal works 110. ) And the copyrighted RDBMS 225 of the illegal copyright tracking program 120.

If watermarking is inserted into the digital content through the above process (1040), the illegal copyright search unit 420 checks the watermarking information at the same time as downloading the digital content (1045). If is not inserted (1050), the illegal copyright search unit 420 changes the copyright information verification method to another (1055).

The real-time watermarking information checking operation is repeated until the watermarking information is confirmed in the corresponding digital content (1060), or the file download is completed (1065, 1070), the real-time watermarking information for the digital content, or When the watermarking information is confirmed (1075) from the file that has been downloaded (1080), the illegal copyright search unit 420 finally confirms whether the corresponding digital content is an illegal copyright using the checked watermarking information (1085). ).

If the digital content is an illegal work through the above process (1090), the illegal copyright search unit 420 automatically generates a report on the result and transmits it to the illegal copyright management unit 205 (1095). On the contrary, if the watermarking information cannot be confirmed in the downloaded digital content or it is found to be legitimate digital content in the process of verifying illegal works using watermarking, the illegal work search unit 420 searches for illegal works on the digital content. To exit.

11 shows that during the process of converting an analog music CD into digital content such as an MP3, a sampling code preset on the music CD is automatically inserted in the form of a copyright sampling code. A simple block diagram of the tracking system.

The copyright information provider 105 of the illegal copyright tracking system using the copyright sampling code included in the music CD is a record producer, and the record producer 105 actually produces a music CD and converts the music CD into digital content such as MP3. If so, the preset copyright information sampling code is automatically inserted into the corresponding digital content.

As described above, the sampling code processed on the music CD is processed on the CD so that a specific sound, which is difficult to be distinguished by the human sense, is generated, as in watermarking. In the process of converting digital content such as a file, the digital content is automatically inserted into a specific digital code.

Therefore, when digital content is generated using the music CD produced as described above, it is converted by a digital content producer through a legal license agreement, as well as an impure synchronous client 115, Warez operator, and P2P sharer. Even if it is digitized by 130 or the like, a special sampling code included in the music CD is automatically inserted into the digital content to be converted, and the illegal copyright search unit 420 of the illegal copyright tracking program 120 uses this information. To determine if the digital content is illegal.

Of course, there may be a case where the real-time copyright sampling code processed in the music CD is destroyed and not automatically inserted in the process of being digitized, is not normally included in the digital content, or is included in the digital content in the form of being destroyed. However, even in this case, not only can the digital content without a copyright sampling code found be included as a tampered illegal work, but also the part of the lyrics contained in the music after the digital content has been downloaded. You can check the copyright information as much as you like by matching the performance with the music.

However, the copyright information confirmation through the matching of the performance sound with a part of the lyrics included in the music is performed by the illegal work monitor 110 rather than being performed by the illegal work tracking program 120 of the client 115. In this embodiment, the illegal copyright tracking program 120 transmits to the illegal copyright management unit 205 that the sampling code that should be naturally found in the digital content in the audio form was not found. The illegal work tracking mission.

In this embodiment, the use of the copyright sampling code included in the digital content in the audio form as the copyright information is slightly different from the use of the watermarking used in FIGS. 9 and 10 as the copyright information. That is, watermarking is to insert copyright information using watermarking technology into content that already exists as digital content, and the copyright sampling code handled in this embodiment is encrypted in a process of converting analogue content into digital content. The unique sampling code is automatically included in the converted digital content, so that the copyright information of the digital content can be confirmed using the unique sampling code.

The copyright sampling code information provided from the record producer 105 is stored in the copyright RDBMS 225 of the illegal copyright monitor 110, which is also applied to the copyright RDBMS 225 of the illegal copyright tracking program 120 of the client 115. Apply. The copyright sampling code information stored in the copyright RDBMS 225 of the illegal copyright monitor 110 is used by the illegal copyright management unit 205 for the maximum verification of the illegal copyright, and the copyright sampling code information stored in the illegal copyright tracking program 120. Is used to search whether the illegal content of digital content being distributed from the content provider or P2P sharer 130 visited by the client 115 through the illegal copyright search unit 420.

After the client 115 or the Internet user runs the illegal asset tracking program 120, surfs the Internet through his web browser, or uses a P2P sharing network through a P2P application, the illegal asset tracking program ( 120 tracks the web surfing and P2P sharing network usage of the client 115 in real time, extracts HTML code of the site and storage information of the P2P sharer's shared space, and temporarily stores the illegal copyright tracking program 120. Store in

The reason for the temporary storage based on the information obtained from the web surfing and P2P sharing network of the client 115 as described above without performing an immediate real-time illegal work search is to prioritize the frequent use of the Internet or P2P sharing network by the customer, This is to perform illegal copyright search when the client 115 temporarily stops surfing the web or using the P2P sharing network.

FIG. 12 shows that the digital content including the copyright sampling code included in the music CD by the record producer 105 is distributed on the Internet or P2P sharing network, through the copyright sampling code information provided by the record producer 105. FIG. The asset tracking program 120 is a simple flowchart of a process of checking whether the digital content is illegal.

When link information is extracted from the copyright information extracting unit 425 of the illegal copyright tracking program 120 of the client 115 (1200), the illegal copyright search unit 420 performs the illegal process using the link information as shown in FIG. Check whether the copyrighted work (1205). If the illegal work is identified in this process (1210), the illegal work monitoring unit writes the result of the report to the illegal work management unit 205 (1290).

However, if it is not possible to confirm that the digital content is an illegal work in the process of verifying illegal works through link information (1215), the illegal work search unit 420 uses the file extension and header information to determine whether the illegal work is illegal as shown in FIG. Check (1220).

If the illegal copyright search unit 420 confirms that the digital content is illegal copyright during the process of verifying illegal copyright using the file extension and header information (1225), the illegal copyright search unit 420 returns the result to the illegal copyright management unit 205. (1290). On the contrary, if it is not possible to confirm that the digital content is an illegal work through comparison analysis of the file extension and header information (1230), the illegal work retrieval unit 420 checks whether the file is digital content stored digitally from the music CD (1235). ).

If the digital content currently checking for illegal copyright is changed from analog content such as a music CD to digital content (1240) and changed (1245), the illegal copyright search unit 420 downloads the digital content. At the same time, the copyright sampling code is checked in real time to determine whether copyright information is present (1250).

On the contrary, if the digital content currently checking for illegal works is not changed from analog content to digital content (1255), the illegal work search unit 420 changes the copyright information checking method to another one (1260).

The real-time copyright sampling code verification operation is repeated until the copyright sampling code is confirmed in the digital content (1265) or the file download is completed (1270, 1275), and the real-time sampling code is confirmed or downloaded for the digital content. When the sampling code is confirmed from the completed file (1280), the illegal copyright search unit 420 finally confirms whether the corresponding digital content is illegal copyright using the verified copyright sampling code information (1285).

When the digital content is identified as an illegal copyright through the above process (1290), the illegal copyright search unit 420 automatically generates a report on the result and transmits it to the illegal copyright management unit 205 (1295). On the contrary, if the copyright sampling code cannot be verified in the downloaded digital content, or if the copyright sampling code is found to be legal digital content in the process of verifying the illegal work using the copyright sampling code, the illegal work search unit 420 searches for illegal works on the digital content. End the job.

According to the present invention, by checking the web surfing of a large number of clients on the Internet to check whether the illegal content of the digital content and the illegal content that is illegally distributed on the Internet by automatically reporting the illegal content monitor to digital content information that turns out to be illegal works The effective control and monitoring system of the company and the monitoring of illegal works are paid to the client who monitors the illegal works, and the effective tracking of illegal works such as mileage points or reserves can be maintained. Through the present invention, if a lot of netizens themselves, not specific agencies, become illegal work monitorers and expel illegal works on the Internet, it will provide a great effect in correcting the order on the Internet.

Claims (15)

It consists of an illegal asset monitoring server that monitors illegal works on the Internet or P2P sharing network, and a client that substantially tracks illegal works existing on the Internet or P2P sharing network through an illegal copyright tracking program distributed from the illegal copyright monitoring server. Characterized by losing, Means for installing on the client an illegal copyright tracking program distributed from the illegal copyright monitoring server; Means for automatically monitoring web surfing of the client via the illegal copyright tracking program; Means for automatically tracking and retrieving illegal works residing on the P2P sharing network and websites visited by the client during the monitoring; Means for confirming whether or not an illegal work is in accordance with the search result and transmitting the verification result to the illegal work monitoring server; And And means for paying a client (or a monetary value including mileage) for illegal copyright tracking to a client and an internet user who tracked the illegal copyright. The illegal work of claim 1, wherein Illegal copying of digital content, characterized in that it consists of the copyright holder who owns the legal copyright to the digital content, or the digital content that is distributed without receiving distribution rights under the law from the copyright information provider who creates and manages the basis of the copyright. And unauthorized distribution tracking system. According to claim 1, The illegal asset monitoring server, An illegal asset tracking program distribution unit configured to distribute an illegal asset tracking program to a client; A copyright information RDBMS (relational database management system) that stores information necessary for extracting illegal copyrights from digital contents distributed on the Internet or P2P sharing network by an illegal copyright tracking program mounted on the client; An illegal copyright management unit that manages an illegal copyright tracking program mounted on the client by the illegal copyright tracking program distribution unit through the copyright information RDBMS, and manages illegal copyright information information transmitted from the illegal copyright tracking program; And An illegal copyright processing unit for sending a warning mail to an illegal copyright distributor or providing illegal copyright information to the copyright information provider or the copyright holder of the digital content with reference to the illegal copyright information; Piracy and unauthorized distribution tracking system. An illegal asset tracking program distribution unit configured to distribute an illegal asset tracking program to a client; A copyright information RDBMS (relational database management system) that stores information necessary for extracting illegal copyrights from digital contents distributed on the Internet or P2P sharing network by an illegal copyright tracking program mounted on the client; An illegal copyright management unit that manages an illegal copyright tracking program mounted on the client by the illegal copyright tracking program distribution unit through the copyright information RDBMS, and manages illegal copyright information information transmitted from the illegal copyright tracking program; And An illegal copyright processing server configured to send a warning mail to the illegal copyright distributor by referring to the illegal copyright information or provide illegal copyright information to the copyright information provider or copyright holder of the digital content; The copyright information in the illegal copyright monitoring server has the same structure as the RDBMS (relational database management system), and the illegal copyright tracking program stores information necessary for extracting illegal copyrights from digital contents distributed on the Internet or P2P sharing network. Asset information RDBMS (relational database management system); Receiving recently updated asset information from the illegal asset management server in the illegal asset monitoring server to update the asset information RDBMS of the illegal asset tracking program, and the asset information RDBMS in the illegal asset monitoring server and the asset information of the illegal asset tracking program. An asset information updating unit for synchronizing the RDBMS; A web surfing tracking unit tracking all the content providers and P2P sharers visited by the client by tracking the web browser and the P2P browser of the client; An asset information extracting unit selectively extracting only link information from the HTML code extracted by the web surfing tracking unit, and storing the extracted link information and URL information; An illegal copyright search unit that checks whether the digital content linked to the link information is an illegal copyright based on the information obtained from the copyright information extractor and copyright information previously stored in the copyright information RDBMS; And And an illegal copyright tracking system (or program), comprising: an illegal copyright transfer unit for transmitting illegal copyright information identified by the illegal copyright search unit to the illegal copyright management unit. Piracy and unauthorized distribution tracking system. The method of claim 1 or 3 or 5, wherein the asset information RDBMS (relational database management system), Copyright D / B that stores copyright information about digital content tracked by the illegal copyright monitoring server and all the information on the digital content, and provides information necessary to analyze the information data of the illegal copyright work transmitted by the illegal copyright tracking program. Data Base; Link information D / B for storing link information of digital content tracked by the copyright D / B, and storing both link information of legitimate works and link information of illegal works; Stores information necessary for extracting copyright information inserted into digital content in a text form from digital content tracked by the copyright D / B, and watermarking information or a specific word included in the digital content in text form Character information for storing an array of D / B (Data Base); Stores information necessary for extracting copyright information inserted into digital content in the form of image from the digital content tracked by the copyright D / B (Data Base), and watermarking information or specific image included in the digital content in the form of image Image information D / B (Data Base) for storing a pattern; Stores information necessary for extracting copyright information inserted into digital content in audio form among digital contents tracked by the copyright D / B (Data Base), and watermarking information or specific sampling included in digital content in audio form Audio information D / B (Data Base) for storing codes; And Stores information necessary for extracting copyright information inserted in digital content in the form of video from digital contents tracked by the copyright D / B (Data Base), and watermarking information or specific video included in the digital content in the form of video System for tracking illegal copying and unauthorized distribution of digital content, characterized in that it comprises a; video information D / B (Data Base) for storing information. The method of claim 1 or 3 or 5, wherein the asset information RDBMS (relational database management system), The copyrighted information is renewed by the copyright information provided by the server, or is automatically updated by the illegal copyright management unit, and transmits the updated contents to a client equipped with the illegal copyright tracking program. A system for tracking illegal copying and unauthorized distribution of digital contents, which includes automatic updating of copyright information RDBMS. The function of claim 1 or 3 or 5, wherein the illegal copyright management unit manages an illegal copyright tracking program installed in the client. A function of updating illegal copyright tracking information of the copyright information RDBMS by accessing the illegal copyright management unit after executing the illegal copyright tracking program of the client; Monitoring the web surfing or P2P shared network usage of the client via the updated information data; Detecting the presence of illegal works from a content provider or a P2P sharer visited by the client according to the monitoring; And And illegally detecting a copyrighted work by the client's illegal copyright tracking program, and automatically transmitting the illegal copyright information to the illegal copyright management unit. The illegal copyright management unit according to claim 1 or 3 or 5, And after receiving the illegal copyright information data transmitted from the illegal copyright tracking program, interworking with the copyright information RDBMS, and accessing the illegal copyright possession content provider or P2P sharer to finally determine the existence of illegal copyright information. System for tracking illegal copying and unauthorized distribution of digital content. The illegal copyright management unit according to claim 1 or 3 or 5, And updating the mileage D / B information of the client with respect to the client that has detected the illegal copyrighted work and has transmitted the illegal copyrighted information information data to the illegal copyright management unit. Tracking system for illegal copying and unauthorized distribution of digital content. The illegal copyright tracking program according to claim 1 or 3, wherein the illegal copyright tracking program mounted on the client includes: The copyright information in the illegal copyright monitoring server has the same structure as the RDBMS (relational database management system), and the illegal copyright tracking program stores information necessary for extracting illegal copyrights from digital contents distributed on the Internet or P2P sharing network. Asset information RDBMS (relational database management system); Receiving recently updated asset information from the illegal asset management server in the illegal asset monitoring server to update the asset information RDBMS of the illegal asset tracking program, and the asset information RDBMS in the illegal asset monitoring server and the asset information of the illegal asset tracking program. An asset information updating unit for synchronizing the RDBMS; A web surfing tracking unit tracking all the content providers and P2P sharers visited by the client by tracking the web browser and the P2P browser of the client; An asset information extracting unit selectively extracting only link information from the HTML code extracted by the web surfing tracking unit, and storing the extracted link information and URL information; An illegal copyright search unit that checks whether the digital content linked to the link information is an illegal copyright based on the information obtained from the copyright information extractor and copyright information previously stored in the copyright information RDBMS; And And an illegal copyright transfer unit for transmitting the illegal copyright information identified by the illegal copyright search unit to the illegal copyright management unit. 10. The method of claim 1, wherein the web surfing tracking unit, When the client connects to a specific content provider, the illegal content copying and unauthorized distribution tracking system of the digital content is characterized by tracking the content provider visited by the client using URL information and HTML code read from the web browser of the client. . 10. The method of claim 1, wherein the web surfing tracking unit, When the client connects to the P2P sharer on the P2P sharing network through a specific P2P application, not a web browser, And extracting the information received through the communication port used by the P2P application program, and extracting the IP address and shared data information data of the P2P sharer. 10. The method according to claim 1 or 3 or 5 or 9, wherein the illegal copyright search unit, Upon confirming the existence of copyright information of the digital content, System for illegal copying and unauthorized distribution of digital content, characterized in that for extracting the copyright information by searching the header area of the digital content file. 10. The method according to claim 1 or 3 or 5 or 9, wherein the illegal copyright search unit, Before downloading the digital content to confirm whether the digital content is illegal, extracting the extension of the digital content file from the link information extracted by the copyright information extraction unit and determining the header size of the file, Download digital content primarily by size; And And downloading the digital content as much as the file header size, extracting header information of the file, and checking whether the file is the same type as the extension. System for tracking illegal copying and unauthorized distribution of digital content, characterized in that by comparing the extension of the file and the header information to determine whether the illegal work without downloading all of the file. 10. The method according to claim 1 or 3 or 5 or 9, wherein the illegal copyright information information extraction function is Extracting watermarking information data provided from a watermarking insertion institution that provides copyright information using watermarking; or And a function of extracting a copyright sampling code inserted into the audio digital content and the moving image digital content.