CN111008387A - Anti-counterfeiting tracing system and method for printed document based on digital signature and document DNA - Google Patents
Anti-counterfeiting tracing system and method for printed document based on digital signature and document DNA Download PDFInfo
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- CN111008387A CN111008387A CN201911204692.0A CN201911204692A CN111008387A CN 111008387 A CN111008387 A CN 111008387A CN 201911204692 A CN201911204692 A CN 201911204692A CN 111008387 A CN111008387 A CN 111008387A
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/606—Protecting data by securing the transmission between two devices or processes
- G06F21/608—Secure printing
Abstract
The invention discloses a system and a method for anti-counterfeiting tracing of printed documents based on digital signatures and document DNA, comprising the following steps: the preprocessing module is used for preprocessing the original document to generate a processed document; the document DNA generating module is used for calculating the processed document to generate document DNA; the document fingerprint map generating module is used for calculating the document DNA to generate a document fingerprint map; the abstract processing module is used for extracting the abstract information of the processed document and processing the abstract information through a private key to obtain a digital signature; the data synthesis module is used for embedding the document fingerprint map into the original document to form a printed document; and the server certificate storage module is used for associating the processed document, the document DNA, the document fingerprint image and the digital signature together to generate an archived file and storing the archived file. The anti-counterfeiting tracing system and the anti-counterfeiting tracing method for the printed document based on the digital signature and the document DNA can ensure that the anti-counterfeiting tracing verification of the document is more reliable and legal.
Description
Technical Field
The invention relates to a printed document anti-counterfeiting traceability system and a method based on digital signature and document DNA.
Background
The traditional anti-counterfeiting tracing solution for printed documents generally adopts means such as physicochemical backgrounds, textures, marks and the like, for example, the backgrounds, the textures, optically variable materials, laser materials and the like are added on paper of the printed documents needing anti-counterfeiting processing. Such physicochemical anti-counterfeiting tracing cannot form reliable anti-counterfeiting tracing verification information by combining document contents, and has no reliable legal authentication, and the contents of printed documents are still easy to forge and tamper.
Disclosure of Invention
In order to solve the defects of the prior art, the invention provides the system and the method for anti-counterfeiting tracing of the printed document based on the digital signature and the document DNA, which can solve the problems.
In order to achieve the above object, the present invention adopts the following technical solutions:
a printed document anti-counterfeiting traceability system based on digital signature and document DNA comprises:
the preprocessing module is used for receiving an original document and carrying out preprocessing operation on the original document to generate a processed document;
the document DNA generating module is used for receiving the processing document sent by the preprocessing module and generating document DNA through calculation;
the document fingerprint image generating module is used for receiving the document DNA generated by the document DNA generating module and generating a document fingerprint image through calculation;
the digest processing module is used for extracting the digest information of the processed document sent by the preprocessing module and processing the digest information through a private key to obtain a digital signature;
the data synthesis module is used for receiving the document fingerprint image generated by the document fingerprint image generation module and embedding the document fingerprint image into the original document to form a printed document;
and the server evidence storage module is used for receiving the processed document generated by the preprocessing module, the document DNA generated by the document DNA module, the document fingerprint image generated by the document fingerprint image generating module and the digital signature generated by the abstract processing module, and associating the processed document, the document DNA, the document fingerprint image and the digital signature together to generate an archived file for storage.
Further, the system for anti-counterfeiting tracing of the printed document based on the digital signature and the document DNA further comprises:
the original document storage module is used for storing original documents;
the preprocessing module receives the original document stored by the original document storage module.
Further, the system for anti-counterfeiting tracing of the printed document based on the digital signature and the document DNA further comprises: and the printing document storage module is used for storing the printing document generated by the data synthesis module.
Further, the system for anti-counterfeiting tracing of the printed document based on the digital signature and the document DNA further comprises:
the image acquisition module is used for acquiring the image information of the paper file to be identified, and the image information is preprocessed by the preprocessing module to obtain a fingerprint image to be identified and a document to be identified;
the document fingerprint image identification module is used for identifying a corresponding archived file from the evidence storage server module according to the fingerprint image to be identified;
the verification module is used for verifying the document to be identified;
the abstract processing module extracts abstract information to be identified of the document to be identified;
the verification module processes the digital signature in the archived file through the public key to obtain the summary information and compares the summary information with the summary information to be identified.
Further, the system for anti-counterfeiting tracing of the printed document based on the digital signature and the document DNA further comprises: and the authentication module is used for storing the public key and the private key.
The digest processing module acquires a private key from the authentication module; the verification module obtains the public key from the authentication module.
Further, the system for anti-counterfeiting tracing of the printed document based on the digital signature and the document DNA further comprises: and the result output module is used for outputting the comparison result.
A printed document anti-counterfeiting tracing method based on digital signatures and document DNA comprises the following steps:
preprocessing an original document through a preprocessing module to obtain a processed document;
calculating the processed document through a document DNA generating module to generate document DNA;
calculating the document DNA through a document fingerprint map generating module to generate a document fingerprint map;
the method comprises the steps that abstract information of a received processed document is extracted through an abstract processing module and processed through a private key to obtain a digital signature;
embedding the document fingerprint image into an original file through a data synthesis module to form a print file;
and associating the processed document, the document DNA, the document fingerprint map and the digital signature together through a server certificate storage module to generate an archive file and storing the archive file.
Further, the print document generated by the data synthesis module is stored by the print document storage module.
Further, the anti-counterfeiting tracing method for the printed document based on the digital signature and the document DNA further comprises the following steps:
acquiring image information of a paper file to be identified through an image acquisition module;
preprocessing the image information through a preprocessing module to obtain a fingerprint image to be identified and a document to be identified;
identifying a corresponding archived file from the evidence storage server module through the document fingerprint image identification module according to the fingerprint image to be identified;
extracting the abstract information to be identified of the document to be identified through an abstract processing module;
and processing the digital signature in the archived file through a verification module to obtain summary information, and comparing the summary information with the summary information to be identified.
Further, the comparison result is output through a result output module.
The printing document anti-counterfeiting traceability system and the printing document anti-counterfeiting traceability method based on the digital signature and the document DNA have the advantages that the printing document anti-counterfeiting traceability system and the printing document anti-counterfeiting traceability method based on the digital signature and the document DNA extract the verification information of the document content and store the verification information of the document, so that the printing document has the content-based, legal, unforgeable and untampered digital anti-counterfeiting traceability capability. The anti-counterfeiting traceability verification of the document is more reliable and legal in such a way.
Drawings
FIG. 1 is a schematic diagram of a printed document anti-counterfeiting traceability system based on digital signature and document DNA of the present invention;
FIG. 2 is a schematic diagram of the anti-counterfeiting tracing method for the printed document based on the digital signature and the document DNA.
The system comprises a digital signature and document DNA based printed document anti-counterfeiting traceability system 100, an original document storage module 1, a preprocessing module 2, a document DNA generation module 3, a document fingerprint map generation module 4, a summary processing module 5, a data synthesis module 6, a server evidence storage module 7, a printed document storage module 8, an image acquisition module 9, a document fingerprint map identification module 10, a verification module 11, an authentication module 12 and a result output module 13.
Detailed Description
The invention is described in detail below with reference to the figures and the embodiments.
As shown in fig. 1 to 2, a printed document anti-counterfeiting tracing system 100 based on digital signature and document DNA comprises: the system comprises a preprocessing module 2, a document DNA generating module 3, a document fingerprint map generating module 4, a summary processing module 5, a data synthesizing module 6 and a server evidence storing module 7. Wherein:
the preprocessing module 2 is used for receiving an original document and performing preprocessing operation on the original document to generate a processed document. The preprocessing operations herein include: the method comprises the steps of effective data identification processing, ineffective data elimination processing, certificate storage snapshot processing, image-text identification processing, image-text correction processing, data extraction processing and the like, namely, preprocessing operation is carried out on an original document to generate a processing document from which information with a verification function can be extracted.
The document DNA generating module 3 is used for receiving the processing document sent by the preprocessing module 2 and generating document DNA through calculation. The processed document processed by the preprocessing module 2 is calculated by the document DNA generating module 3 to obtain information which can verify the authenticity of the document, namely document DNA. The document DNA includes: attribute information related to the document, such as operator information for operating the document, document operation time, and document operation address. Since the processing personnel, address, time, etc. for generating each document are different, i.e., each document has its own unique attribute information, each document corresponds to a document DNA that is uniquely distinguished from other documents. Furthermore, the authenticity of the document can be verified according to the unique document DNA of the document.
The document fingerprint map generating module 4 is used for receiving the document DNA generated by the document DNA generating module 3 and generating a document fingerprint map through calculation. The document fingerprint image is the expression form of document DNA and is used for marking in the original document, and the corresponding document DNA can be found by identifying the document fingerprint image.
The processed document processed by the preprocessing module 2 is sent to the abstract processing module 5. The digest processing module 5 is used for extracting the digest information of the processed document and processing the digest information through a private key to obtain a digital signature. That is, the digest information extracted from the processed document is encrypted by the private key to form a digital signature having an encrypted nature.
The document fingerprint map generation module 4 uploads the generated document fingerprint map to the data synthesis module 6. The data synthesis module 6 embeds the document fingerprint map into the original document to form a printed document. The printed document embedded with the document fingerprint image is a document with anti-counterfeiting traceability. The document fingerprint image is evidence that the printed paper document can be distinguished to be true or false.
The processed document generated by the preprocessing module 2, the document DNA generated by the document DNA module, the document fingerprint map generated by the document fingerprint map generating module 4 and the digital signature generated by the abstract processing module 5 are uploaded to the server storage module 7. The server authentication module 7 associates the received corresponding processed document, document DNA, document fingerprint map and digital signature together by calculation to generate an archive file and save it. The processing document, the document DNA, the document fingerprint image and the digital signature stored by the server certificate storage module 7 are all evidences capable of distinguishing whether the printed paper document is true or false.
The printed document anti-counterfeiting traceability system 100 based on the digital signature and the document DNA provided by the invention can generate verification information with an anti-counterfeiting traceability function through the plurality of modules and store the verification information as evidence for verifying the authenticity of the printed paper document in the later period, and the specific method is as follows:
the original document is preprocessed through the preprocessing module 2 to obtain a processed document.
The document DNA is generated by calculating the processing document through the document DNA generating module 3. The document DNA generated in the step is the verification information with the anti-counterfeiting tracing function.
The document fingerprint map is generated by calculating the document DNA through the document fingerprint map generating module 4. The document fingerprint image generated in the step is the verification information with the anti-counterfeiting tracing function.
The digest information of the received processed document is extracted by the digest processing module 5 and processed by the private key to obtain a digital signature. The digital signature generated in the step is the verification information with the anti-counterfeiting tracing function.
The document fingerprint map is embedded into the original file by the data synthesis module 6 to form a print file. In the step, the document fingerprint image is embedded into the original file to form a print file, so that the print file has the document fingerprint image after being printed into a paper file. And when anti-counterfeiting traceability verification is performed at a later stage, corresponding document DNA information can be acquired according to the document fingerprint image, and the authenticity of the paper file can be verified according to verification of the document DNA.
The processed document, the document DNA, the document fingerprint map and the digital signature are associated together by the server certification module 7 to generate an archive file and stored. In this step, the processed document, the document DNA, the document fingerprint map, and the digital signature are associated together to generate an archived file and save the information to be verified for archiving and archiving.
As a preferred embodiment, the system 100 for anti-counterfeiting tracing of printed documents based on digital signatures and document DNA further comprises: an original document storage module 1. The original document storage module 1 is used for storing original documents. The preprocessing module 2 receives the original document stored in the original document storage module 1, and then preprocesses the original document.
As a preferred embodiment, the system 100 for anti-counterfeiting tracing of printed documents based on digital signatures and document DNA further comprises: a print document storage module 8. The print document storage module 8 is used for storing the print document generated by the data synthesis module 6. The printed document stored in the printed document storage module 8 has verification information that can perform anti-counterfeiting tracing. The print document stored in the print document storage module 8 can be printed as a paper file.
As a further scheme, the system 100 for anti-counterfeiting tracing of printed documents based on digital signatures and document DNA further comprises: an image acquisition module 9, a document fingerprint image identification module 10 and a verification module 11. Wherein:
the image obtaining module 9 is configured to obtain image information of the paper document to be identified, where the image information is preprocessed by the preprocessing module 2 to obtain a fingerprint image to be identified and a document to be identified. The authenticity of the paper file can be distinguished by verifying the fingerprint image to be identified and the document to be identified.
The document fingerprint image identification module 10 is used for identifying a corresponding archived file from the evidence storage server module according to the fingerprint image to be identified.
The verification module 11 is used for verifying the document to be identified. Specifically, the digest processing module 5 extracts digest information to be recognized of the document to be recognized. The verification module 11 processes the digital signature in the archived file identified by the document fingerprint image identification module 10 through the public key to obtain the digest information and compares the digest information with the digest information to be identified to verify the authenticity of the document to be identified.
Furthermore, the original documents in the invention are all provided with unique document codes. The document code is contained within the document DNA and is part of the document DNA. The document fingerprint map identification module 10 can identify the document code contained in the fingerprint map to be identified. The document fingerprint identification module 10 then finds the corresponding archived file containing the same document code from the certificate storage server module through the identified document code. The archived file is found in such a way, so that the problem of inaccurate identification caused by unclear acquisition of the image of the fingerprint image to be identified and the like can be solved.
According to the above-mentioned multiple modules of the printed document anti-counterfeiting tracing system 100 based on digital signature and document DNA, the authenticity of the printed paper document can be verified, and the specific method is as follows:
the image information of the paper document to be identified is acquired by the image acquisition module 9.
The image information is preprocessed through the preprocessing module 2 to obtain a fingerprint image to be recognized and a document to be recognized.
And identifying a corresponding archived file from the evidence storage server module according to the fingerprint image to be identified through the document fingerprint image identification module 10.
The summary information to be identified of the document to be identified is extracted by the summary processing module 5.
The digital signature in the archived file is processed by the verification module 11 to obtain the summary information, and the summary information is compared with the summary information to be identified.
As a specific implementation manner, the system 100 for anti-counterfeiting tracing of printed documents based on digital signatures and document DNA further includes: an authentication module 12. The authentication module 12 is used for storing a public key and a private key. The digest processing module 5 acquires a private key from the authentication module 12 to perform encryption processing on digest information by the private key to generate a digital signature. The verification module 11 obtains the public key from the authentication module 12 to decrypt the digital signature in the archived file by the public key to obtain the digest information.
As a specific implementation manner, the system 100 for anti-counterfeiting tracing of printed documents based on digital signatures and document DNA further includes: and a result output module 13. The result output module 13 is configured to receive the comparison result obtained by the comparison and reception performed by the verification module 11, and output the comparison result for the user to check.
The original documents in the scheme include WORD documents, EXCEL documents and PDF documents, but are not limited to WORD documents, EXCEL documents and PDF documents, and may also include other forms of documents.
As a specific embodiment, the image acquisition module 9 is a scanner.
As an alternative embodiment, the image capturing module may also be a camera or other device capable of capturing images.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by using equivalent alternatives or equivalent variations fall within the scope of the present invention.
Claims (10)
1. A printed document anti-counterfeiting traceability system based on digital signature and document DNA is characterized by comprising:
the system comprises a preprocessing module, a document processing module and a document processing module, wherein the preprocessing module is used for receiving an original document and carrying out preprocessing operation on the original document to generate a processed document;
the document DNA generating module is used for receiving the processing document sent by the preprocessing module and generating document DNA through calculation;
the document fingerprint map generating module is used for receiving the document DNA generated by the document DNA generating module and generating a document fingerprint map through calculation;
the abstract processing module is used for extracting the abstract information of the processed document sent by the preprocessing module and processing the abstract information through a private key to obtain a digital signature;
the data synthesis module is used for receiving the document fingerprint map generated by the document fingerprint map generation module and embedding the document fingerprint map into the original document to form a printed document;
and the server evidence storage module is used for receiving the processed document generated by the preprocessing module, the document DNA generated by the document DNA module, the document fingerprint map generated by the document fingerprint map generating module and the digital signature generated by the abstract processing module, and associating the processed document, the document DNA, the document fingerprint map and the digital signature together to generate an archived file for storage.
2. The system for anti-counterfeiting tracing of printed documents based on digital signatures and document DNA according to claim 1,
the anti-counterfeiting tracing system for the printed document based on the digital signature and the document DNA further comprises:
the original document storage module is used for storing original documents;
the preprocessing module receives the original document stored by the original document storage module.
3. The system for anti-counterfeiting tracing of printed documents based on digital signatures and document DNA according to claim 1,
the anti-counterfeiting tracing system for the printed document based on the digital signature and the document DNA further comprises:
and the printing document storage module is used for storing the printing document generated by the data synthesis module.
4. The system for anti-counterfeiting tracing of printed documents based on digital signatures and document DNA according to claim 1,
the anti-counterfeiting tracing system for the printed document based on the digital signature and the document DNA further comprises:
the image acquisition module is used for acquiring image information of a paper file to be identified, and the image information is preprocessed by the preprocessing module to obtain a fingerprint image to be identified and a document to be identified;
the document fingerprint image identification module is used for identifying the corresponding archived file from the evidence storage server module according to the fingerprint image to be identified;
the verification module is used for verifying the document to be identified;
the abstract processing module extracts abstract information to be identified of the document to be identified;
and the verification module processes the digital signature in the archived file through a public key to obtain the summary information and compares the summary information with the summary information to be identified.
5. The system for anti-counterfeiting tracing of printed documents based on digital signatures and document DNA according to claim 4,
the anti-counterfeiting tracing system for the printed document based on the digital signature and the document DNA further comprises:
and the authentication module is used for storing the public key and the private key.
The digest processing module acquires the private key from the authentication module;
the verification module obtains the public key from the authentication module.
6. The system for anti-counterfeiting tracing of printed documents based on digital signatures and document DNA according to claim 4,
the anti-counterfeiting tracing system for the printed document based on the digital signature and the document DNA further comprises:
and the result output module is used for outputting the comparison result.
7. A printed document anti-counterfeiting tracing method based on digital signatures and document DNA is characterized by comprising the following steps:
preprocessing an original document through a preprocessing module to obtain a processed document;
calculating the processed document through a document DNA generating module to generate document DNA;
calculating the document DNA through a document fingerprint map generating module to generate a document fingerprint map;
extracting the received summary information of the processed document through a summary processing module and processing the summary information through a private key to obtain a digital signature;
embedding the document fingerprint image into the original file through a data synthesis module to form a printing file;
and associating the processed document, the document DNA, the document fingerprint map and the digital signature together through a server certificate storage module to generate an archived file and store the archived file.
8. The method for anti-counterfeiting tracing of printed documents based on digital signatures and document DNA as claimed in claim 7,
and storing the print document generated by the data synthesis module through a print document storage module.
9. The method for anti-counterfeiting tracing of printed documents based on digital signatures and document DNAs as claimed in claim 7, wherein said method for anti-counterfeiting tracing of printed documents based on digital signatures and document DNAs further comprises the steps of:
acquiring image information of a paper file to be identified through an image acquisition module;
preprocessing the image information through the preprocessing module to obtain a fingerprint image to be identified and a document to be identified;
identifying the corresponding archived file from the evidence storage server module through a document fingerprint image identification module according to the fingerprint image to be identified;
extracting the summary information to be identified of the document to be identified through the summary processing module;
and processing the digital signature in the archived file through the verification module to obtain the summary information, and comparing the summary information with the summary information to be identified.
10. The method for anti-counterfeiting tracing of printed documents based on digital signatures and document DNA according to claim 9,
and outputting the comparison result through a result output module.
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Application publication date: 20200414 |