CN113312593A - Tracking management system and method for dynamically tracking leakage information - Google Patents
Tracking management system and method for dynamically tracking leakage information Download PDFInfo
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- G06K17/0025—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisions for transferring data to distant stations, e.g. from a sensing device the arrangement consisting of a wireless interrogation device in combination with a device for optically marking the record carrier
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Abstract
The invention belongs to the technical field of information security of communication technology, and particularly relates to a tracking management system for dynamically tracking leaked information, which comprises a controlled information management subsystem, a holographic two-dimensional code subsystem, an inquiry service and watermark subsystem and a tracking management subsystem which are sequentially connected through an internal controlled network; inputting the holographic use environment information of the original controlled information collected in real time into a holographic two-dimensional code subsystem to obtain a corresponding digital watermark signal, and inputting the digital watermark signal into an inquiry service and watermark subsystem; the obtained digital watermark signal is invisibly implanted into original controlled information sent to an inquiry service and watermark subsystem to form a digital watermark, and the digital watermark is displayed or printed and output through a screen; the tracking management subsystem recovers the intercepted and leaked screen digital watermark controlled information or printed digital watermark controlled information with the invisible digital watermark displayed or printed by the screen to obtain the corresponding holographic use environment information, thereby realizing dynamic tracking.
Description
Technical Field
The invention belongs to the technical field of information security of communication technology, and particularly relates to a tracking management system and a method for dynamically tracking leaked information.
Background
The current state of the art for managing the use of controlled information (non-public information) is as follows:
for the circulation of the controlled information of the electronic version, the port of a management computer is blocked to realize physical isolation;
controlled management marks such as bar codes and the like are added to circulation of printed version controlled information which is printed and output, and medium management is enhanced;
physical isolation management cannot be basically realized for controlled information displayed on a screen.
Digital watermarking is a kind of protection information embedded in a carrier using a computer algorithm. The existing digital watermarking technology is a computer information hiding technology based on a content and non-password mechanism. Some identification information (namely digital watermark) is directly embedded into the digital carrier, and the use value of the original carrier is not influenced, and the identification information is not easy to be ascertained and modified again. Wherein the digital carrier comprises multimedia, documents, software. The information hidden in the carrier achieves the purposes of confirming content creators and purchasers, transmitting secret information, judging whether the carrier is tampered or not and the like. Digital watermarking is an effective method for protecting information security, realizing anti-counterfeiting tracing, copyright protection and the like.
The basic principle of the generation of the existing digital watermark is as follows:
assuming that I is the original controlled information, W is the digital watermark signal, and K is the password, the generated processed controlled information W1 with digital watermark is defined by the function F as follows:
W1＝F(I,W,K) (1)
the function F should be irreversible if the digital watermark signal owner does not want the watermark to be known to others.
Provided with an encoding function E, original controlled information I and a digital watermark signal W, the digital watermark Iw can be expressed as follows:
Iw＝E(I,W) (2)
as can be seen from the above, the existing digital watermark is relatively fixed, i.e. once the digital watermark is embedded in the carrier, the tracking information is not changed any more, and thus the digital watermark is relatively static and does not change with the change of the usage time, the usage computer environment, the user, the file version, etc. Therefore, it is impossible to accurately trace back the time of use, the computer environment, the user, the file version, and the like of the leaked information.
Disclosure of Invention
The present invention aims to solve the above-mentioned defects of the prior art, and the present invention provides a tracking management system for dynamically tracking leaked information, and more particularly to a tracking management system for implanting controlled information into dynamic and hidden digital watermarks, which records the current use time, the use computer environment detailed information, the user detailed information and the document basic information of the controlled information in a certain area in real time, namely: extracting the time when the controlled information is output in real time, and realizing the accurate locking of the final use time of the controlled information; recording information such as computer software and hardware, network environment and the like used when the controlled information is output in real time, and uniquely determining a computer, hardware and a network used when the controlled information is output; extracting computer user information used for logging in when the controlled information is output and registered user information using a user service management module in real time, and uniquely determining a user when the controlled information is output; adding basic information of the document, accurately locking the version number of the leaked document and the like; the leakage path of the controlled information in a certain area can be accurately locked by adding the dynamic tracking information as a hidden digital watermark into the controlled information. In addition, in order to enhance the practicability, the traditional controlled information bar Code management system is reserved, but a QR Code two-dimensional Code mode is preferably adopted, and the traditional controlled information management system in the bar Code mode is optimized and compatible.
In order to achieve the purpose, the invention provides a tracking management system for dynamically tracking leaked information, which solves the problem of information leakage protection when controlled information is displayed on a screen and printed out, and comprises a controlled information management subsystem, a holographic two-dimensional code subsystem, an inquiry service and watermark subsystem and a tracking management subsystem which are sequentially connected through an internal controlled network; inputting the holographic use environment information of the original controlled information collected in real time into a holographic two-dimensional code subsystem to obtain a corresponding digital watermark signal, and inputting the digital watermark signal into an inquiry service and watermark subsystem; the obtained digital watermark signal is invisibly implanted into original controlled information sent to an inquiry service and watermark subsystem to form a digital watermark, and corresponding screen digital watermark controlled information or printing digital watermark controlled information is output through screen display or printing; the tracking management subsystem recovers the screen digital watermark controlled information or the printed digital watermark controlled information with the invisible digital watermark, which is displayed or printed out on the intercepted and leaked screen, to recover the corresponding digital watermark signal and the tracking two-dimensional code, decodes the digital watermark signal and the tracking two-dimensional code to obtain the corresponding holographic use environment information, and realizes dynamic tracking.
As one improvement of the above technical solution, the controlled information management subsystem is configured to store and manage original controlled information in a unified manner, and send the original controlled information to the query service and watermark subsystem in real time;
the holographic two-dimensional code subsystem is used for collecting holographic use environment information of original controlled information in real time and dynamically generating corresponding tracking two-dimensional codes and digital watermark signals;
the inquiry service and watermark subsystem is used for inquiring, browsing and printing the original controlled information subjected to tracking processing by a user, namely, a dynamically generated digital watermark signal is invisibly implanted into the original controlled information received in real time to form a digital watermark, and the corresponding screen digital watermark controlled information or the printed digital watermark controlled information is displayed or printed and output by a screen;
and the tracking management subsystem is used for recovering the corresponding digital watermark signal and the tracking two-dimensional code by recovering the screen digital watermark controlled information or the printed digital watermark controlled information with the invisible digital watermark, which is displayed or printed out on the intercepted and leaked screen, and decoding to obtain the corresponding holographic use environment information so as to realize dynamic tracking.
As an improvement of the above technical solution, the controlled information management subsystem includes: database a1, server a2, and output processing module A3;
the database A1 is used for storing original controlled information;
the server a2, which is used for managing original controlled information;
and the output processing module A3 is used for sending original controlled information to the query service and watermark subsystem in real time.
As an improvement of the above technical solution, the holographic two-dimensional code subsystem includes: the system comprises a holographic dynamic information acquisition module B1, a QR Code two-dimensional Code generation module B2 and a QR two-dimensional Code preprocessing module B3;
the holographic dynamic information acquisition module B1 is used for acquiring holographic use environment information of original controlled information in real time;
the QR Code two-dimensional Code generation module B2 is used for generating a corresponding tracking two-dimensional Code from the holographic use environment information of the original controlled information acquired in real time;
and the QR two-dimensional code preprocessing module B3 is used for performing scrambling processing, compression processing and spread spectrum processing on the generated tracking two-dimensional code to generate a corresponding digital watermark signal.
As an improvement of the above technical solution, the query service and watermark subsystem includes: a user service management module C2, a screen digital watermarking processing module C3, a user terminal C1, a printing digital watermarking processing module C4 and a printer C5;
the user service management module C2 is used for receiving original controlled information and user inquiry, browsing and printing the original controlled information after tracking processing;
the screen digital watermark processing module C3 is used for invisibly implanting a digital watermark signal into original controlled information received in real time to form a digital watermark and generating screen digital watermark controlled information for screen display;
the user terminal C1 is used for displaying screen digital watermark controlled information with invisible digital watermarks through a screen of the user terminal;
the printing digital watermark processing module C4 is used for invisibly implanting a digital watermark signal into original controlled information received in real time to form a digital watermark and generating printing digital watermark controlled information for printing output;
and the printer C5 is used for printing and outputting the printing digital watermark controlled information with the invisible digital watermark.
As an improvement of the above technical solution, the tracking management subsystem includes: the system comprises a management terminal D1, a service management module D2, a scanner D3, a tracking information recovery module D4 and a two-dimensional code reader D5;
the management terminal D1 is used for receiving each intercepted and leaked electronic version controlled information with the invisible digital watermark and sending the information to the service management module D2;
the scanner D3 is used for receiving each intercepted and leaked paper version controlled information with the invisible digital watermark, scanning the information to generate electronic version information, and sending the electronic version information to the service management module D2;
the service management module D2 is configured to classify and store each electronic version control information sent by the management terminal D1 or each electronic version information sent by the scanner D3, and send it to the tracking information recovery module D4;
the tracking information recovery module D4 is configured to recover the received controlled information or electronic version information of each electronic version to obtain an implanted digital watermark signal, and complete a reverse de-preprocessing process on the QR two-dimensional code preprocessing module B3 to recover a corresponding tracking two-dimensional code;
and the two-dimensional code reader D5 is used for decoding the obtained tracking two-dimensional code to obtain the holographic use environment information of the corresponding original controlled information.
As an improvement of the above technical solution, the hologram use environment information includes: time of use of controlled information, detailed information of computer environment used, detailed information of users, and basic information of documents.
The invention also provides a tracking management method for dynamically tracking the leakage information, which comprises the following steps:
acquiring holographic use environment information of original controlled information in real time, and dynamically generating corresponding tracking two-dimensional codes and digital watermark signals;
the dynamically generated digital watermark signal is invisibly implanted into original controlled information inquired in real time to form a digital watermark, and the corresponding screen digital watermark controlled information is displayed or printed out or the digital watermark controlled information is printed out;
and recovering the intercepted and leaked screen digital watermark controlled information or printed digital watermark controlled information with the invisible digital watermark displayed or printed on the screen, recovering the corresponding digital watermark signal and the tracking two-dimensional code, decoding to obtain the corresponding holographic use environment information, and realizing dynamic tracking.
As one improvement of the above technical solution, the holographic using environment information of the original controlled information is collected in real time, and a corresponding tracking two-dimensional code and a digital watermark signal are dynamically generated; the method specifically comprises the following steps:
acquiring holographic use environment information of original controlled information in real time;
generating corresponding tracking two-dimensional codes by using the holographic use environment information of the original controlled information acquired in real time;
and carrying out scrambling processing, compression processing and spread spectrum processing on the generated tracking two-dimensional code to generate a corresponding digital watermark signal.
As one improvement of the technical scheme, screen digital watermark controlled information or printed digital watermark controlled information with invisible digital watermarks, which is displayed or printed and output by an intercepted and leaked screen, is recovered, corresponding digital watermark signals and tracking two-dimensional codes are recovered and decoded, and corresponding holographic use environment information is obtained; the method specifically comprises the following steps:
receiving each intercepted and leaked electronic version controlled information with invisible digital watermarks;
or receiving each intercepted and leaked paper version controlled information with the invisible digital watermark, and scanning the information to generate electronic version information;
restoring the received controlled information or electronic version information of each electronic version to obtain an implanted digital watermark signal, completing a reverse de-preprocessing process of the QR two-dimensional code preprocessing module B3, and restoring a corresponding tracking two-dimensional code;
and decoding the obtained tracking two-dimensional code to obtain the corresponding holographic use environment information of the original controlled information.
Compared with the prior art, the invention has the beneficial effects that:
1) the system can dynamically acquire the holographic use environment information of the original controlled information, so that the tracking information contained in the invisible digital watermark implanted into the controlled information is accurate and dynamic;
2) the holographic two-dimensional Code subsystem firstly generates a QR Code tracking two-dimensional Code, which is compatible with a traditional bar Code management identifier and optimizes the traditional bar Code management mode;
3) the inquiry service and watermark subsystem embeds invisible digital watermarks into screen display and printing output of original controlled information to obtain screen digital watermark controlled information or printing digital watermark controlled information with the invisible digital watermarks, so that all output ways of the controlled information contain invisible and controlled information use dynamic tracking information;
4) the holographic use environment information is dynamically updated, and the real-time performance is realized; the system is used for the use management of the controlled information resources, and can accurately track the use time of the original controlled information during information leakage, the use computer environment detailed information, the use user detailed information, the document basic information and other holographic use environment information when the controlled information is leaked due to the fact that the controlled information is shot, recorded and the like on the screen digital watermark displayed on the screen or the copy, scan and the like on the printed and output printed digital watermark controlled information.
Drawings
FIG. 1 is a basic principle of the generation of invisible digital watermarks of a tracking management system for dynamically tracking leaked information according to the present invention;
fig. 2 is a schematic structural diagram of a tracking management system for dynamically tracking leakage information according to the present invention.
Detailed Description
The invention will now be further described with reference to the accompanying drawings.
As shown in fig. 2, the present invention provides a tracking management system for dynamically tracking leaked information, which uses a dynamic, hidden and traditional two-dimensional code-compatible digital watermark to establish a tracking management system for preventing the leakage of controlled information in a certain area, and thus, dynamic tracking of the output and usage of the controlled information in the certain area is realized.
Specifically, the system adds the holographic use environment information in real time in the screen display or printout process of the controlled information, and utilizes the invisible digital watermark mode which is invisible visually, so that after the controlled information is leaked due to screen capture, photographing, video recording and the like of the screen digital watermark controlled information displayed on the screen or copying, scanning and the like of the printed and output printed digital watermark controlled information, accurate tracking management of the source of the original controlled information leakage can be realized.
As shown in fig. 1 and fig. 2, the present invention provides a tracking management system for dynamically tracking leaked information, which solves the problem of information leakage protection when controlled information is displayed on a screen and printed out, and comprises a controlled information management subsystem, a holographic two-dimensional code subsystem, an inquiry service and watermark subsystem and a tracking management subsystem which are sequentially connected through an internal controlled network; inputting the holographic use environment information of the original controlled information collected in real time into a holographic two-dimensional code subsystem to obtain a corresponding digital watermark signal, and inputting the digital watermark signal into an inquiry service and watermark subsystem; the obtained digital watermark signal is invisibly implanted into original controlled information sent to an inquiry service and watermark subsystem to form a digital watermark, and corresponding screen digital watermark controlled information or printing digital watermark controlled information is output through screen display or printing; the tracking management subsystem recovers the screen digital watermark controlled information or the printed digital watermark controlled information with the invisible digital watermark, which is displayed or printed out on the intercepted and leaked screen, to recover the corresponding digital watermark signal and the tracking two-dimensional code, decodes the digital watermark signal and the tracking two-dimensional code to obtain the corresponding holographic use environment information, and realizes dynamic tracking.
The controlled information management subsystem is used for uniformly storing and managing original controlled information and sending the original controlled information to the query service and watermark subsystem in real time;
wherein the controlled information management subsystem comprises: database a1, server a2, and output processing module A3;
the database A1 is used for storing original controlled information;
the server a2 is used for managing original controlled information, specifically, collecting the original controlled information, and performing classification, classification and access authority setting according to user requirements;
and the output processing module A3 is used for sending original controlled information to the query service and watermark subsystem in real time.
The holographic two-dimensional code subsystem is used for collecting holographic use environment information of original controlled information in real time and generating corresponding tracking two-dimensional codes and digital watermark signals;
wherein the holographic two-dimensional code subsystem comprises: the system comprises a holographic dynamic information acquisition module B1, a QR Code two-dimensional Code generation module B2 and a QR two-dimensional Code preprocessing module B3;
the holographic dynamic information acquisition module B1 is connected with a QR Code two-dimensional Code generation module B2, and the QR Code two-dimensional Code generation module B2 is connected with a QR two-dimensional Code preprocessing module B3;
as shown in fig. 1, the holographic dynamic information collecting module B1 is configured to collect, in real time, holographic use environment information of original controlled information;
the QR Code (Quick Response Code) two-dimensional Code generation module B2 is used for generating a corresponding tracking two-dimensional Code from the holographic use environment information of the original controlled information acquired in real time;
specifically, the generation of the tracking two-dimensional Code adopting the QR Code is based on a QR Code version number 40; wherein, generating a library: qrcode and python-qrcode; adopting a dynamic two-dimensional code or an artistic two-dimensional code format; the anti-attack performance is high; and (3) selecting an error correction level: h, 30 percent.
The QR two-dimensional code preprocessing module B3 is configured to perform scrambling processing, compression processing, and spread spectrum processing on the generated tracking two-dimensional code to generate a corresponding digital watermark signal;
specifically, in the generation process of the digital watermark, the volume of the implanted information is as small as possible, so that scrambling processing, compression processing and spread spectrum processing need to be performed on the tracking two-dimensional code; wherein,
scrambling processing is carried out on the tracking two-dimensional code by using Arnold transformation according to the characteristics of the fading tracking two-dimensional code;
compressing, namely lossless compression is carried out on the identification information of the scrambled tracking two-dimensional code, namely the identification information is compressed;
and the spread spectrum processing is used for carrying out spread spectrum processing on the compressed tracking two-dimensional code information to generate a digital watermark signal and enhance the robustness of the digital watermark.
The inquiry service and watermark subsystem is used for inquiring, browsing and printing the original controlled information subjected to tracking processing by a user, namely, a dynamically generated digital watermark signal is invisibly implanted into the original controlled information received in real time through an embedding algorithm to form a digital watermark, and the controlled signal containing the digital watermark, namely, the corresponding screen digital watermark controlled information or the printed digital watermark controlled information is displayed or printed out through a screen;
wherein, the query service and watermark subsystem comprises: a user service management module C2, a screen digital watermarking processing module C3, a user terminal C1, a printing digital watermarking processing module C4 and a printer C5;
the user service management module C2 is respectively connected with the screen digital watermarking processing module C3 and the printing digital watermarking processing module C4, the screen digital watermarking processing module C3 is connected with the user terminal C1, and the printing digital watermarking processing module C4 is connected with the printer C5;
the user service management module C2 is used for receiving original controlled information and user inquiry, browsing and printing the original controlled information after tracking processing;
the screen digital watermark processing module C3 is used for invisibly implanting a digital watermark signal into original controlled information received in real time to form a digital watermark and generating screen digital watermark controlled information for screen display;
the user terminal C1 is used for displaying the screen digital watermark controlled information with the invisible digital watermark through the screen of the user terminal;
the printing digital watermark processing module C4 is used for invisibly implanting a digital watermark signal into original controlled information received in real time to form a digital watermark and generating printing digital watermark controlled information for printing output;
the printer C5 is used for printing and outputting the printing digital watermark controlled information with the invisible digital watermark;
specifically, the user service management module C2 queries original controlled information, processes the original controlled information and the digital watermark signal through an embedding algorithm, and obtains corresponding screen digital watermark controlled information with an invisible digital watermark or print digital watermark controlled information;
a typical digital watermarking algorithm is a frequency domain embedding algorithm. First, the output of the original controlled information is converted into an original image, and for example, watermark information is embedded by using a low-frequency coefficient as a host signal in a DCT (Discrete Cosine Transform) domain of the original image having a pixel size of M rows × N columns.
Dividing an original image I (M multiplied by N) into 8 multiplied by 8 non-covered sub-blocks marked as IkWhere k is 0,1, …, (M × N)/64. For each image block IkAnd performing DCT transformation, and embedding the watermark signal into four low-frequency coefficients of the DCT transformation in order to meet the requirements of invisibility and robustness of the watermark, so that the watermark can be embedded into 16 points in total.
The watermark is superposed on the DCT low-frequency coefficient to carry out DCT inverse transformation, and the image I' embedded with the watermark can be obtained.
And after the DCT processing process, the invisible implantation of the dynamic tracking information in the original controlled information is finished, and the controlled information with the invisible digital watermark generated after the processing is finally output to a user.
After the screen digital watermark processing module C3 or the print digital watermark processing module C4 invokes the above processing procedure, the screen digital watermark controlled information or the print digital watermark controlled information generated in the real-time screen display or the printout, respectively, will implicitly contain the recorded information for tracking the dynamically changing usage environment.
And the tracking management subsystem is used for recovering the screen digital watermark controlled information or the printed digital watermark controlled information which is displayed or printed on the screen and output by the screen and has the invisible digital watermark to obtain the implanted digital watermark signal, recovering the corresponding digital watermark signal and the tracking two-dimensional code, decoding to obtain the corresponding holographic use environment information and realize dynamic tracking.
Wherein the tracking management subsystem comprises: the system comprises a management terminal D1, a service management module D2, a scanner D3, a tracking information recovery module D4 and a two-dimensional code reader D5;
the scanner D3 is used for receiving each intercepted and leaked paper version controlled information with the invisible digital watermark, scanning the information to generate electronic version information, and sending the electronic version information to the service management module D2; the intercepted and leaked controlled information of the paper version with the invisible digital watermark comprises: printing digital watermark controlled information containing paper edition and printed screen digital watermark controlled information;
the service management module D2 is respectively connected with the management terminal D1, the scanner D3 and the tracking information recovery module D4, and the tracking information recovery module D4 is connected with the two-dimensional code reader D5;
the management terminal D1 is used for receiving each intercepted and leaked electronic version controlled information with the invisible digital watermark and sending the information to the service management module D2;
wherein the intercepted leaked electronic version controlled information with the invisible digital watermark comprises: electronic copying of screen digital watermark controlled information, and printing digital watermark controlled information converted into an electronic version;
the service management module D2 is configured to classify and store each electronic version control information sent by the management terminal D1 or each electronic version information sent by the scanner D3, and send it to the tracking information recovery module D4;
the tracking information recovery module D4 is used for recovering the received controlled information or electronic version information of each electronic version to obtain the implanted digital watermark signal, and completing the reverse de-preprocessing process of the QR two-dimensional code preprocessing module B3 to recover the tracking two-dimensional code;
and the two-dimensional code reader D5 is used for decoding the obtained tracking two-dimensional code to obtain the holographic use environment information of the corresponding original controlled information.
The holographic use environment information includes: time of use of controlled information, detailed information of computer environment used, detailed information of users, and basic information of documents.
Wherein the using computer environment detailed information includes: operating system version information, serial number information, network card hardware number information, IP address information, physical memory capacity information, CPU name, kernel number, main frequency information, hard disk capacity, hard disk number information, video card model and video memory capacity information or printer information;
the user details include: user information of a computer used for logging in and registered user information of a user service management module;
the document basic information includes: file number, classification level, file name, file version number, compilation unit and compilation person.
By adopting the dynamic and hidden digital watermark processing process, the invention realizes the real-time recording of the holographic use environment information of the original controlled information in the screen display or printout, and the invisible digital watermark which is invisible visually is implanted into the controlled information, so that the traceable information content contained in the digital watermark is real-time and dynamic, and after the controlled information displayed on the screen is leaked by taking pictures, cutting screens, recording videos and the like, or the printed and output controlled information is copied and scanned, the use time of the controlled information leakage is traced by the dynamic and hidden digital watermark technology of the invention, and accurate leakage propagation path information such as the computer environment detailed information, the user detailed information, the document basic information and the like is used, and the controllable management of the sensitive information is realized more accurately.
The invention also provides a tracking management method for dynamically tracking the leakage information, which comprises the following steps:
acquiring holographic use environment information of original controlled information in real time, and dynamically generating corresponding tracking two-dimensional codes and digital watermark signals;
the dynamically generated digital watermark signal is invisibly implanted into original controlled information inquired in real time to form a digital watermark, and the corresponding screen digital watermark controlled information is displayed or printed out or the digital watermark controlled information is printed out;
and recovering the intercepted and leaked screen digital watermark controlled information or printed digital watermark controlled information with the invisible digital watermark displayed or printed on the screen, recovering the corresponding digital watermark signal and the tracking two-dimensional code, decoding to obtain the corresponding holographic use environment information, and realizing dynamic tracking.
As one improvement of the above technical solution, the holographic using environment information of the original controlled information is collected in real time, and a corresponding tracking two-dimensional code and a digital watermark signal are dynamically generated; the method specifically comprises the following steps:
acquiring holographic use environment information of original controlled information in real time;
generating corresponding tracking two-dimensional codes by using the holographic use environment information of the original controlled information acquired in real time;
and carrying out scrambling processing, compression processing and spread spectrum processing on the generated tracking two-dimensional code to generate a corresponding digital watermark signal.
As one improvement of the technical scheme, screen digital watermark controlled information or printed digital watermark controlled information with invisible digital watermarks, which is displayed or printed and output by an intercepted and leaked screen, is recovered, corresponding digital watermark signals and tracking two-dimensional codes are recovered and decoded, and corresponding holographic use environment information is obtained; the method specifically comprises the following steps:
receiving each intercepted and leaked electronic version controlled information with invisible digital watermarks;
or receiving each intercepted and leaked paper version controlled information with the invisible digital watermark, and scanning the information to generate electronic version information;
restoring the received controlled information or electronic version information of each electronic version to obtain an implanted digital watermark signal, completing a reverse de-preprocessing process of the QR two-dimensional code preprocessing module B3, and restoring a corresponding tracking two-dimensional code;
and decoding the obtained tracking two-dimensional code to obtain the corresponding holographic use environment information of the original controlled information.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and are not limited. Although the present invention has been described in detail with reference to the embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A tracking management system for dynamically tracking leakage information is characterized by comprising a controlled information management subsystem, a holographic two-dimensional code subsystem, a query service and watermark subsystem and a tracking management subsystem which are sequentially connected through an internal controlled network; inputting the holographic use environment information of the original controlled information collected in real time into a holographic two-dimensional code subsystem to obtain a corresponding digital watermark signal, and inputting the digital watermark signal into an inquiry service and watermark subsystem; the obtained digital watermark signal is invisibly implanted into original controlled information sent to an inquiry service and watermark subsystem to form a digital watermark, and corresponding screen digital watermark controlled information or printing digital watermark controlled information is output through screen display or printing; the tracking management subsystem recovers the screen digital watermark controlled information or the printed digital watermark controlled information with the invisible digital watermark, which is displayed or printed out on the intercepted and leaked screen, to recover the corresponding digital watermark signal and the tracking two-dimensional code, decodes the digital watermark signal and the tracking two-dimensional code to obtain the corresponding holographic use environment information, and realizes dynamic tracking.
2. The tracking management system for dynamically tracking the leaked information according to claim 1, wherein the controlled information management subsystem is configured to uniformly store and manage original controlled information and send the original controlled information to the query service and watermark subsystem in real time;
the holographic two-dimensional code subsystem is used for collecting holographic use environment information of original controlled information in real time and dynamically generating corresponding tracking two-dimensional codes and digital watermark signals;
the inquiry service and watermark subsystem is used for inquiring, browsing and printing the original controlled information subjected to tracking processing by a user, namely, a dynamically generated digital watermark signal is invisibly implanted into the original controlled information received in real time to form a digital watermark, and the corresponding screen digital watermark controlled information or the printed digital watermark controlled information is displayed or printed and output by a screen;
and the tracking management subsystem is used for recovering the corresponding digital watermark signal and the tracking two-dimensional code by recovering the screen digital watermark controlled information or the printed digital watermark controlled information with the invisible digital watermark, which is displayed or printed out on the intercepted and leaked screen, and decoding to obtain the corresponding holographic use environment information so as to realize dynamic tracking.
3. A trace management system for dynamically tracking leakage information according to claim 1, wherein said controlled information management subsystem comprises: database a1, server a2, and output processing module A3;
the database A1 is used for storing original controlled information;
the server a2, which is used for managing original controlled information;
and the output processing module A3 is used for sending original controlled information to the query service and watermark subsystem in real time.
4. The tracking management system for dynamically tracking leakage information according to claim 1, wherein the holographic two-dimensional code subsystem comprises: the system comprises a holographic dynamic information acquisition module B1, a QR Code two-dimensional Code generation module B2 and a QR two-dimensional Code preprocessing module B3;
the holographic dynamic information acquisition module B1 is used for acquiring holographic use environment information of original controlled information in real time;
the QR Code two-dimensional Code generation module B2 is used for generating a corresponding tracking two-dimensional Code from the holographic use environment information of the original controlled information acquired in real time;
and the QR two-dimensional code preprocessing module B3 is used for performing scrambling processing, compression processing and spread spectrum processing on the generated tracking two-dimensional code to generate a corresponding digital watermark signal.
5. A trace management system for dynamically tracking leaked information according to claim 1, wherein said query service and watermark subsystem comprises: a user service management module C2, a screen digital watermarking processing module C3, a user terminal C1, a printing digital watermarking processing module C4 and a printer C5;
the user service management module C2 is used for receiving original controlled information and user inquiry, browsing and printing the original controlled information after tracking processing;
the screen digital watermark processing module C3 is used for invisibly implanting a digital watermark signal into original controlled information received in real time to form a digital watermark and generating screen digital watermark controlled information for screen display;
the user terminal C1 is used for displaying screen digital watermark controlled information with invisible digital watermarks through a screen of the user terminal;
the printing digital watermark processing module C4 is used for invisibly implanting a digital watermark signal into original controlled information received in real time to form a digital watermark and generating printing digital watermark controlled information for printing output;
and the printer C5 is used for printing and outputting the printing digital watermark controlled information with the invisible digital watermark.
6. The tracking management system for dynamically tracking leakage information according to claim 1, wherein said tracking management subsystem comprises: the system comprises a management terminal D1, a service management module D2, a scanner D3, a tracking information recovery module D4 and a two-dimensional code reader D5;
the management terminal D1 is used for receiving each intercepted and leaked electronic version controlled information with the invisible digital watermark and sending the information to the service management module D2;
the scanner D3 is used for receiving each intercepted and leaked paper version controlled information with the invisible digital watermark, scanning the information to generate electronic version information, and sending the electronic version information to the service management module D2;
the service management module D2 is configured to classify and store each electronic version control information sent by the management terminal D1 or each electronic version information sent by the scanner D3, and send it to the tracking information recovery module D4;
the tracking information recovery module D4 is configured to recover the received controlled information or electronic version information of each electronic version to obtain an implanted digital watermark signal, and complete a reverse de-preprocessing process on the QR two-dimensional code preprocessing module B3 to recover a corresponding tracking two-dimensional code;
and the two-dimensional code reader D5 is used for decoding the obtained tracking two-dimensional code to obtain the holographic use environment information of the corresponding original controlled information.
7. The tracking management system for dynamically tracking leaked information according to claim 1, wherein said holographic usage environment information includes: time of use of controlled information, detailed information of computer environment used, detailed information of users, and basic information of documents.
8. A tracking management method for dynamically tracking leakage information is characterized by comprising the following steps:
acquiring holographic use environment information of original controlled information in real time, and dynamically generating corresponding tracking two-dimensional codes and digital watermark signals;
the dynamically generated digital watermark signal is invisibly implanted into original controlled information inquired in real time to form a digital watermark, and the corresponding screen digital watermark controlled information is displayed or printed out or the digital watermark controlled information is printed out;
and recovering the intercepted and leaked screen digital watermark controlled information or printed digital watermark controlled information with the invisible digital watermark displayed or printed on the screen, recovering the corresponding digital watermark signal and the tracking two-dimensional code, decoding to obtain the corresponding holographic use environment information, and realizing dynamic tracking.
9. The tracking management method for dynamically tracking the leaked information according to claim 8, wherein the holographic using environment information of the original controlled information is collected in real time and dynamically generated into corresponding tracking two-dimensional codes and digital watermark signals; the method specifically comprises the following steps:
acquiring holographic use environment information of original controlled information in real time;
generating corresponding tracking two-dimensional codes by using the holographic use environment information of the original controlled information acquired in real time;
and carrying out scrambling processing, compression processing and spread spectrum processing on the generated tracking two-dimensional code to generate a corresponding digital watermark signal.
10. The tracking management method for dynamically tracking the leaked information according to claim 8, wherein the screen digital watermark controlled information or the printed digital watermark controlled information with the invisible digital watermark, which is displayed or printed out on the intercepted and leaked screen, is recovered to recover the corresponding digital watermark signal and the tracking two-dimensional code, and the corresponding holographic use environment information is obtained by decoding the digital watermark signal and the tracking two-dimensional code; the method specifically comprises the following steps:
receiving each intercepted and leaked electronic version controlled information with invisible digital watermarks;
or receiving each intercepted and leaked paper version controlled information with the invisible digital watermark, and scanning the information to generate electronic version information;
restoring the received controlled information or electronic version information of each electronic version to obtain an implanted digital watermark signal, completing a reverse de-preprocessing process of the QR two-dimensional code preprocessing module B3, and restoring a corresponding tracking two-dimensional code;
and decoding the obtained tracking two-dimensional code to obtain the corresponding holographic use environment information of the original controlled information.
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