Digital watermark anti-counterfeiting method based on digital signature technology

Abstract

The invention discloses a digital watermark anti-counterfeiting method based on a digital signature technology. The scheme includes the steps: after digital watermark information (such as specified electronic document users, use purposes, use validity periods and other elements) is input into an electronic document, generating digital watermark information according to a digital watermark strategyand a digital watermark algorithm, and embedding the digital watermark information into the electronic document; and carrying out digital signature protection on the electronic document content and the digital watermark content. For the digital watermark anti-counterfeiting method, the digital signature information or the electronic signature information on the original electronic document cannotbe damaged under the condition that the digital signature or the electronic signature information exists in the original electronic document, and authenticity, integrity, non-repudiation, verifiability, extractability and safety anti-counterfeiting performance of the content of the electronic document and the content of the digital watermark are achieved.

Description

technical field [0001] The invention relates to information security technology, in particular to digital signature and digital watermark security technology of electronic documents. Background technique [0002] Currently, electronic document data is a very important information asset in the information-based big data application society. In the actual application of electronic documents, it is necessary to prevent unauthorized use, out-of-scope use, inability to prevent counterfeiting, and inability to trace the source. Through the digital watermarking technology of digital signatures, it can be safely printed according to the digital watermark information, just like physical assets. , safe circulation, level-by-level approval, authority control, security management, security monitoring, use in specified scenarios, and security anti-counterfeiting to ensure the authenticity, integrity, non-tamperability, validity, prevention and control, and practicality of electronic docu...

AI Technical Summary

Problems solved by technology

The traditional digital watermark information is independent of the content of the electronic document, even separated from the target file. Its expression is directly embedded in the electronic document as copyright information with simple and easy-to-recognize text information. Doing so will easily lead to forgery or tampering of copyright information. Moreover, the watermark information may be forged, making it impossible to effectively protect the legal owner of the data

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