WO2017115885A1

WO2017115885A1 - Content search and history tracking monitoring system for facilitating searching and tracking by comprising encryption information in various contents

Info

Publication number: WO2017115885A1
Application number: PCT/KR2015/014385
Authority: WO
Inventors: 윤재영
Original assignee: 윤재영
Priority date: 2015-12-29
Filing date: 2015-12-29
Publication date: 2017-07-06

Abstract

The present invention relates to a system for incorporating decryption information into a content so that an original copyright holder can recognize the work of his/her own. When a content code is assigned, a virtualization code is inserted into an original content using a content event value and a copyright holder value, and the content is decrypted to generate a converted content file, and a release and distribution situation can be confirmed through a search using an identification code included in the converted content file.

Description

Content search and traceability monitoring system that includes encryption information in various contents for easy searching and tracking

The present invention is a method for distributing content and distributing it online, in which the original copyright holder checks that his / her copyrighted work is distributed. Specifically, the content file includes a certain area or the whole (around) the content file in a package form. The present invention relates to a method of identifying information copyright holders by making information into a separate identification code.

Recently, as the creation and distribution of individual contents through the Internet or mobile communication network became popular, even if the user puts his own work on a specific site, the third party downloads it as a separate program and redistributes it as a third party's ID. There is a lot of interest in who is who. Currently, there are cases where the copyright owner or netizens discover and notify the original copyright holder, but this is only true for some famous contents, and it is difficult to accurately track it. Accordingly, interest in how to know how copyrighted contents are distributed and how they are distributed by third parties has increased.

In general, the technology that prevents unauthorized use of digital content and protects the rights and interests of providers is collectively called Digital Rights Management (DRM). DRM expresses rights such as DOI (Digital Object Identifier), a content identification system, index (INDECS), a standard for metadata of content, and extensible rights mark-up language (XrML) that defines the terms of use or permissions of content. Technology, encryption technology to prevent illegal copying and tampering. Recently, a watermarking technique for attribution and a fingerprinting technique for tracking a user may be included.

However, the DRM method has an excellent effect in preventing illegal copying of contents and determining illegality of contents through user restriction, but is limited in preventing the distribution, distribution of illegally copied contents, or tracking and searching of distributed contents. There is.

Recently, various methods for solving these problems have been introduced.

For example, Korean Patent Application Publication No. 10-2012-70664 discloses a method of inserting and distributing forensic marks (pinker printing) for user identification in content and blocking illegal uploads using forensic marks in a web hard server. . However, this method can block only when forensic mark-embedded content is uploaded to a web hard server having a forensic mark detection module. Therefore, it is difficult to check the overall distribution and distribution of illegally copied content.

In addition, Korean Patent Application Publication No. 10-2010-48711 discloses a method of inserting and distributing a tracking agent to a content, and when the content is executed, a tracking agent transmits information of an execution terminal to a tracking management server to track and manage the distribution of the content. Initiate

Doing. However, since the tracking agent is operated at the time of execution of the content, it cannot be executed and simply cannot track the contents in circulation, and since the tracking agent is a kind of application, there is a problem that can be easily removed through hacking technology.

In addition, Korean Patent Application No. 10-2012-0132673 filed by the applicant provides a method for the search engine to search the content file by converting the content by including a specific identification code in a portion of the original content file. This method requires the user to generate a separate code on a specific site and then upload the content by converting their content. In particular, when inserting information into a specific area, the identification code must be put through a separate conversion step. The content is converted into the converter by inputting information through a specific site and uploading the content. The distribution and distribution of the content requires monitoring and identification. However, if a specific area is the beginning of the content, the content itself may be degraded, which may cause a significant obstacle in using the content. I need a way to do it.

The present invention is to solve the problems of the prior art, by matching the identification code of the individual with the identification code of the content to be able to search the content distributed or distributed on-line extensively, and also to ensure that the quality is not degraded Its purpose is. In addition, it is possible to easily check whether the searched content is distributed through a legitimate channel or an illegal copy, and to make it easy to know who the original author is.

In order to achieve the above object, the present invention provides a service for a user who wants to upload a content or a content creator (hereinafter referred to as a 'content uploader' and more precisely refers to a content creator's terminal). If you connect to a site that communicates via wired or wireless communication and enter your information on the above site, the site will be encoded or encrypted so that the information of the content uploader and the generated content can be identified as your work at any time. Encoding or encryption is called "decryption".

The information stored in this way is automatically decoded and stored in the generated content generated by the content uploader uploading the content (file), and the generated content can be distributed or distributed directly from the server, or It can be received by the uploader for distribution and distribution.

In this case, the encryption is connected to the content upload server using wired or wireless communication.

(A) Content uploader enters his or her information in the APP or WEB of wired and wireless terminals, and this information is stored as separate personal information,

(B) If uploaded to the decryption server through the APP or WEB of the wired / wireless terminal, the content (authorized or authorized by the copyright holder) is converted or converted through the decryption server (this document). The converted content of means that the original content is decoded, not the content is converted.) Is generated.

(C) Separate contents identification code is generated for the personal information and decrypted contents, and this information is stored in the content uploader and the server.

(D) The converted content including the content identification code is searched on the search site, and the searched result value is automatically extracted from the server and stored in the content uploader and the system.

(E) The converted content file including the content identification code may be provided to the search requester by dividing the search result for the content file with the content identification code not including the content identification code.

The content decoding method according to the present invention generates a separate code for assigning a code to an identifiable content uploader or content and managing the same. The method of matching the content uploader and the content identification code in the step (c) may include storing the information of the content uploader through separate decoding; When the content uploader uploads the original content, the content decoding code is assigned to the converted content by the decryption server; Matching the identification code of the content uploader and the identification code of the content; And providing a content identification code (content uploader identification code + content identification code).

In the above (b) step, the content decoding method

(A) an apparatus and a system for configuring a decryption header in a content upload system,

(B) The decryption method designates the position determined by the system from the beginning and the end of the content.

(C) The decryption header is inserted into the content at the specified position.

At this time, the information of the decoding header is composed of a user code, a group code, a category code, a data code, a content event code code, a reserved code, and the like, and this code can be changed by addition or deletion at the request of the system.

(D) When the decryption header is configured, the virtualization code is composed, and the virtualization code is composed of the content event code value and the copyright holder value among the decryption header values, and this value is later searched for the distribution and distribution of the copyright holder's file. Used for poetry.

(E) In other words, the decryption method inserts a decryption header value and then additionally inserts a virtualization code so that the path through which the content is distributed and distributed can be checked.

In the present invention, when the content uploader uploads a content (file), the content identification code is assigned by matching the information of the content uploader with the information of the original content, and the code is inserted into a specific part of the content. The content uploader can be downloaded again to distribute and distribute the content on the web and APP, or to upload the content file with the matching content identification code to the user's desired site from the server of the system. The present invention relates to a method of identifying and decrypting an individual's work.

The present invention includes a content uploader identification code generation module including an input module for inputting information of a content uploader and a content uploader identification code generating means for encoding and matching the inputted information in a system;

A content decryption module including means for generating an identification code for encrypting corresponding content upon uploading the content to construct a decryption header, and the decryption header decrypting the content;

A virtualization code module including means for generating a virtualization code for automatically assigning a copyright holder identification code and an event (order) value and means for generating the virtualization code;

A metadata module for converting and generating decrypted content into metadata, including a content uploader identification code, a content decoding header module, and a virtualization code granting module;

A content download module for downloading the decrypted content and a content alliance module for distributing and distributing the corresponding content directly to another site; And an identification code confirming means for verifying the information of the corresponding content by the user's identification code or the content identification code, and a function for searching the contents file including the identification code and the contents uploader corresponding to the identification code. A search module having a function of searching using input information, the search module including a search engine for a content uploader and a system administrator; Provides a method and a decryption system for verifying an individual's work online, including

When the content decryption service according to the present invention is used, the content provider can legally distribute the content file because the search is performed using the uploader identification code and the content identification code included in the content file by matching the information of the content uploader with the content information. And the distribution status can be conveniently checked.

In addition, the search using the identification code, the search using the user input information, and the search using the metadata are performed in one search request, so that the distribution status of the content file can be confirmed widely.

In addition, the distribution of contents through the information of the content uploader is provided separately, so that the distribution of contents and distribution of personal works can be legalized to check the distribution of contents and to easily track unauthorized distributors. .

1 is a schematic structural diagram of a system according to an embodiment of the present invention;

2 is a flow path of content in a system according to an embodiment of the present invention.

3 is a block diagram of a matching method of a personal identification code and a content identification tod

4 is an overall configuration of a content decryption method

5 is a diagram of a decoding code granting method

6 is a virtual code granting method

7 is an example of a decoding method.

8 shows an example of configuration of data giving a virtualization code value.

9 is a configuration example showing a conversion result after content decoding through an MPEG2 TS packet (transmission method commonly used for streaming).

FIG. 10 illustrates an example of changing a mpeg2 file after decoding code is applied.

11 to 13 show yet another embodiment

The present invention is a content retrieval and traceability monitoring system that includes encryption information in various contents to facilitate searching and tracking, and includes an upload module receiving content and personal information from a terminal of an original copyright holder and an original copyright terminal. Identification code generation means for generating an identification code from the owner's personal information, metadata

Including a decoding module for inserting the identification code into the original content file to generate a converted content file by inserting and decoding the identification code generated from the identification code generating means into the original content to generate a converted content file contained in the converted content file The identification and distribution status can be checked through the search using the identification code.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

System for identifying and decrypting personal content according to an embodiment of the present invention communicates with the content uploader 100 through the content uploader 100 and the communication network 200, as shown in the overall system overview of FIG. System server 1000 is included.

The content uploader 100 may include a desktop computer, a notebook computer, a portable terminal such as a smart phone and a tablet PC having a wireless Internet connection, and other computer devices capable of data communication.

The type of the communication network 200 is not limited, and includes, for example, a wired or wireless Internet network, a mobile communication network, a LAN, a WAN, a wireless LAN, or the like, or an optional combination thereof.

The system server 1000 may include an upload module 1010, a metadata conversion module 1020, a decryption module 1100, a virtualization module 1200, a metadata conversion module 1400, a search module 1020, and a content management module ( 1030, a matching module 1500, and the like, and interoperate with the database 2000. Also, although not shown in the drawings, a control means for controlling the operation of the system, a storage means for storing a program, a database management system (DBMS), a member management means for performing member authentication and login procedures, and a payment processing means for performing a payment process And the like.

The upload module 1010 provides a content upload page to the content uploader 100 to support a content upload procedure.

In the present specification, for convenience of description, the content file uploaded to the system server 1000 will be referred to as 'content'.

The upload page provides an input window for inputting information about the original content file to be uploaded, and the input information may include, for example, a content owner, affiliation or group, or category.

In addition, the upload module 1010 may provide a metadata input window for inputting metadata of the original content file. The metadata may include the content owner, title, running time, file format, price, and the like.

Since the original content file may already include metadata, the upload module 1010 may include a function for checking and adding metadata in preparation for this case. Since the metadata items and structure of the content file are not completely standardized, the items and structure may be formalized to be input together when the input information is input.

At this time, the system server may initialize the metadata information and forcibly insert additional identification code determined by the system by using the metadata conversion module 1400 to provide information.

Decryption module 1100 is a module for inserting the identification code of the content when the content is uploaded and executed together with the virtualization module and metadata conversion module can be inserted or executed alone. For example, if there is metadata, the system can read it and only decrypt it without performing metadata conversion. .

The virtualization module 1200 may insert the content uploader information and the information of the content event code (event, order) value at the time of uploading the content. This can also be done alone or together with the decryption module and metadata conversion module.

The metadata conversion module extracts the metadata and rearranges the metadata in a manner required by the system, and generates a unique metadata identification code to use for searching the contents.

The search module 1020 is used to search using any one or more of the codes in the contents created using the decryption identification code, the virtualization identification code, and the metadata identification code. The search module may search the virtualization identification code decryption identification code and the metadata identification code based on the author information and the content information and output the searched result.

In particular, the search module (1020) is a decryption code content search and history lookup system is related to the online distribution status and usage tracking, the purpose is to search a wide range of use history of decrypted code content distributed or distributed online. In other words, the information of the searched content is used for various purposes. That is, the history searched by the search module is stored in a separate DB so that the search history can be stored separately.

Specific methods for content search and history inquiry are as follows.

When the information of the content uploader 100 and the content file is input or the content file is matched with the content identification code (when matched), the information inputted or matched with the content file is uploaded in the system module 1000. 1010, user information (including IP, etc.), user input information, and the metadata conversion module 1400 generate an identification code converted from metadata, and the decryption code and virtualization converted through the decoding module 1100. The virtualization code converted from the module 1200 is generated and registered by the content management module 1030 through a matching module that matches the information.

When a variety of identification codes (metadata, decryption code, virtualization code) thus generated are inserted into the original content file to generate a converted content file, the converted content file is transmitted to the content provider or the user's terminal.

The search can then be performed using one or more of these identification codes inserted above.

At this time, the search is performed in parallel with the search through the identification code and the search through the user input information, so that the search module 1020 provides the search result to the search requester. In addition, a separate search server is used to provide search results to a user or a content uploader using a search box.

In the present invention, various types of codes are generated and included in the original contents, and the history of these codes is continuously managed to understand how the contents are distributed.

In addition, even if one code is interpreted, as long as it is distributed by using various codes at once, it is possible to keep track of the history because the distribution history can be grasped by other codes unless the codes are interpreted at once.

The effects of decryption code content search and history search are as follows.

It is possible to conveniently check the distribution and distribution status through the search using the identification code included in the content file. That is, the search using identification code, user input information, and metadata are all performed in parallel, so that the distribution status can be confirmed widely.

This can be used as big data by accumulating and processing various information such as upload status, download status, distribution status, unauthorized access status, and local information based on the retrieved information.

Content management module 1030 is a module that can manage the content of the content uploader to identify the distribution and distribution path of the content, and to provide the pay view or clicks according to the information, and when the revenue such as advertising occurs information Can provide.

The matching module 1500 may match the identification code of the content uploader and the identification code of the content so that the copyright information of the corresponding content can be easily grasped, which is linked to the search module and the affiliate module.

The database area 2000 stores information of a content uploader, information of a content, and information such as affiliation and distribution.

2 shows the content movement path in the system.

When the content uploader uploads the content to the server, the system server decrypts the content and creates the decrypted content file. The above content is stored in the database, and it is distributed and distributed. Display the content movement path that enables the

3 relates to a method of matching personal information with content information.

The content uploader joins the system and this member information is assigned a personal identification code specified by the system.The code is applied at the time of login, and the content identification code is given when the content uploader uploads the content. Afterwards, the content identification code is generated, and then the personal identification code and the content identification code can be matched. That is, it is possible to check who is the owner of the content. In this case, when the content is uploaded, the content uploader may be stored together to generate a content identification code.

(콘텐츠 복호화 방법) (Content decryption method)

4 illustrates a content decoding method. When a content file is uploaded, the system configures a decryption header. The decryption header value is provided by encoding the user code, group code, category code, data code, content event code (event, sequence, etc.) and RESERVED attribute value so that they can be inserted into the content.

In this case, the decryption header may be inserted into a specific part of the content file requested by the system. For example, you can insert content at the beginning of a content file to extract content information. The decoding header has a value of 128 bits, and in the case of the following values, the default value of the digital value is set, and this setting value can be two digits.

The content event code may use a random number that is generated according to the order, time, etc. at the time of decoding, and this event code may be used when constructing the virtualization code with the content event value.

In addition, the virtualization code is configured separately. The decryption header value is composed of a content event value and a content uploader value. The decryption module may be configured as a decryption module by combining the decryption header and the virtualization code value.

Therefore, the decryption code and the virtualization code can be connected by the content event value and searched together, and it is possible to check whether the modulation code is modulated by others.

In particular, since the decryption code and the like can be inserted into each part of the content, it is impossible to remove all the decryption codes and the like in the content.

(콘텐츠 복호화 방법) (Content decryption method)

FIG. 5 illustrates a method for assigning a decryption code, which illustrates creating a content identification code through a user code, a group code, a category code, a data code, a content event code, and an attribute code. At this time, this code value can be added or deleted by system setting.

FIG. 6 illustrates a method of granting a virtualization code, and illustrates a method of creating and assigning a separate virtualization code value using a content value and an identification code of a content uploader for content identification. The virtualization code is a content uploader and a system. If there is an event of the contents of the change and the modification or the cooperation of the contents uploader, the relevant information is transmitted to the contents uploader's identification code so that the contents uploader and the system administrator can know the details. The content event value may be a random value generated by the system when this situation occurs.

In addition, the content event code is stored in the content uploader and the system when a change, modification, deletion, etc. occurs, and the customized content advertisement information using big data through the change history tracking and the viewer (user) are used. Can be provided.

7 is an exemplary diagram illustrating a method of assigning, ie, inserting, a decoding code of a decoding method.

That is, the decryption code is composed of user code, group code, category code, date code, sequence code, reserved, and so on. These values are inserted into VALUE1 to VALUE6 of the header. The last byte, TCI_INDEX, is used for dummy positioning and minimum unit header modulation.

The decryption code information is divided into information input when encoding from the server and user information input when downloading. The information input to the decryption code at the time of download is a user information value.

The size of the decryption code in this example is fixed at 128 bytes, and if the 128 bytes are not filled, the empty value is filled with 00. The value may change in size depending on the size or format of the system, user and content.

In this example, the decryption code value is inserted at the beginning of the original file, and the actual example of the added decryption code is as follows.

(Ex: ASCII)

TTP.GRP.SHOW € o..7000TTPG60000001 .... 1111500034321112e ³ð¿ † a ............................... ......................................

(EX: HEX)

54 54 50 00 47 52 50 00 53 48 4F 57 80 F4 03 00 37 30 30 30 54 54 50 47 36 30 30 30 30 30 30 31 10 0E 00 00 31 31 31 31 35 30 30 30 33 34 33 32 31 31 31 32 EB B3 F0 BF 86 95 E1 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

8 shows an example of the configuration of data giving a virtualization code value.

The dummy code is composed of a content event code value and a value of a copyright holder among the decryption code values. In addition, the value of the minimum unit is indicated before and after the change.

9 shows an example of the conversion result after content decoding through an MPEG2 TS packet (transmission method commonly used for streaming).

The figure below shows the structure of MPEG2 TS packet and the following figure shows the structure of MPEG2 TS packet after content decoding is applied.

The first 2 bytes of the virtualization code and the position to insert the virtualization code are appropriately determined by using the reference value generated based on the decryption code data. The decoding code is generated in the header of the TS packet. ), For example, is not meant for content conversion or can be easily restored in a general-purpose player, so avoid TS header positions. Modulation is done for each packet. To increase complexity, the virtualization code is inserted at a new location created based on the modulation location value. In addition, all TS headers are modulated so that the converted contents are not recognized as TS files.

In this example, the TS header is 4 bytes and the first 4 bytes of all packets are always modulated.

10 illustrates an example in which an mpeg2 file is changed after decoding code is applied.

11 is an example of configuring a decoding code value.

The decryption code value consists of 8 bytes and is used to specify the insertion position of the modulation and virtualization code values.

The decoding code value is designated as [Random Value] in the first [0 ~ 3] bytes and in the subsequent step, [4 ~ 6] byte is designated as the Random Value but is set after 0x80 OR operation.

[7] byte of the decoding code value is a pattern value, and is involved in modulating and specifying a dummy data insertion position. Version control of the decoding module can be performed by specifying a range of the pattern value. (You can create a library to not play content that does not fit the range.)

The pattern value is used by setting a random value out of a specific range of values (EX: 0 ~ 0xFF). The pattern value is generated by calculating through 7 bytes before TCI INDEX. In other words, the pattern value generation formula is a pattern generation algorithm that only the encoding entity and the decoding entity (TCI player) know to use the pattern as a key value. It is generated dynamically. Since the pattern value is dynamically generated, the pattern value is not inserted into the decoding code value [7] and the decoding code value [7] has no value or a meaningless value. In decoding, a pattern is generated through a pattern generation algorithm and a position is calculated based on this value.

도 12는 콘텐츠의 사용자 및 12 is a user of content and 유저가The user 검색한 결과를 제공하는 Provide the search results 방법에 대한 예시를 한An example of how 것이다. will be.

Specific methods for content search and history inquiry are as follows.

When the information of the content uploader 100 and the content file is input or matched with the content identification code, the information or the matched information input together with the content file is transmitted to the upload module 1010 in the system server 1000. IP, etc.), the user input information and the metadata generated from the metadata converted from the metadata conversion module 1400 converted into metadata, and decrypted code and virtualization module 1200 converted through the decryption module 1100 The virtualization code is converted from and is registered with the content management module 1030 through the matching module 1500 matching these information.

The various content identification codes are inserted into the original content file to generate the converted content file. The converted content file is transmitted to the content provider or the user's terminal.

After that, the search can be performed using one of these identification codes.

At this time, the order of the metadata conversion module, the decoding module, and the virtualization module during the post-upload module may be changed by the system administrator, and a separate conversion module may be generated and added for content management.

The content files in this document include literary works (poetry, novels, papers, lectures, screenplays, speeches, etc.), music works, theater works, art works (paintings, calligraphy, sculpture, crafts, applied art works), architectural works (architecture, Design work, etc.), photographic works, video works, figure works, computer program works, etc.

Fig. 13 shows the operation of the decryption code player.

The present invention can be used for the protection of copyright.

Claims

As a content search and traceability monitoring system that includes encryption information in various contents for easy searching and tracking,

An upload module for receiving contents and personal information from the original copyright holder's terminal;

Identification code generation means for generating an identification code from the original copyright information and metadata of the original copyright holder provided by the terminal of the original copyright holder;

Including a decryption module for inserting the identification code into the original content file to generate a converted content file

Insert and decode the identification code generated from the identification code generating means into the original content to generate a converted content file

Content retrieval and traceability monitoring system that facilitates retrieval and tracking by including encryption information in various contents that enables distribution and distribution status to be identified through retrieval using identification codes included in the converted contents file
The content copyright holder of claim 1, wherein the metadata in the system is content. It may contain one or more of information such as title, running time, file format, and price. The metadata conversion module converts the content into metadata in the format determined by the system when the content includes metadata so that the original copyright owner is his or her work. Content retrieval and traceability monitoring system that includes encryption information in various contents to facilitate the search and tracking
The method of claim 2, further comprising a virtualization module for generating a virtualization code generated by using a content event value and a copyright holder value generated when a content code is assigned, so as to include encryption information in various contents for easy searching and tracking. Content search and traceability monitoring system
The decryption information of claim 3, further comprising a matching module that compares and matches any one or more of the generated metadata code, decryption code, and virtualization code with content. Content retrieval and traceability monitoring system that includes encryption information in various contents, including the contents, and a method of searching for the contents by using the same.
The virtual copyright module of claim 4, wherein the virtualization module generates the virtualization code using the content event value and the copyright holder value of the decrypted code, and the content event value is randomly generated and included at the moment of the event. Includes decryption information that allows the original copyright holder to know that it is his or her copyrighted work so that it can be identified in the content, and includes a method for searching for the content using the decryption information. Content retrieval and traceability monitoring system that includes encryption information in content to facilitate search and tracking
The method according to claim 5, wherein when a situation such as a change, modification, or deletion of a content event code occurs, the content is stored in a content uploader and a system, and customized using big data through change history tracking and a viewer (user) using the same. Encrypted in various contents, including decryption information in the content, which can provide the content advertising information, so that the original copyright owner knows that it is his or her work, and the method for searching for the content using this content Content search and traceability monitoring system that includes information to facilitate search and tracking
The decoding code of claim 3, wherein the decryption code is inserted into a header including a user code, a group code, a category code, a data code, and a content event code, and the decryption code index information designates the location of the virtualization code and is used for the minimum unit header modulation. Content retrieval and traceability monitoring system that includes encryption information in various contents to facilitate the search and tracking, so that the original copyright can include decryption information in the contents so that the original copyright holder can know that it is the copyrighted work.
5. The method of claim 4, wherein the system reference value is calculated when determining a modulation position in content decoding. The system reference value is determined by the sum of each byte constituting the decoding code header, modulated using a data operation equation, and the byte sum and pattern value range of a part of the original data. Includes decoded information in the content, which allows the original copyright holder to know that it is his or her work, by using the unique value of each star, and includes a method for searching for the content using the content. Content search and traceability monitoring system that includes encrypted information for easy searching and tracking
The content of claim 4 including decryption information that allows the original copyright holder to know that the work is his or her own, including a matching module for matching the generated metadata code with the decryption code virtualization code and the content. Content retrieval and traceability monitoring system that includes encryption information in various contents, including a method for retrieving information, to facilitate retrieval and tracking.