Offline license anti-counterfeiting method based on reliable digital signature and two-dimensional code

Abstract

The invention relates to an offline license anti-counterfeiting method based on a reliable digital signature and a two-dimensional code, aiming to effectively realize high offline anti-counterfeiting security. The method comprises the following steps: extracting sensitive information in a license, performing digital signature, coding the sensitive information of the license and the digital signature thereof to generate a two-dimensional code, binding the two-dimensional code with an issued license; acquiring the two-dimensional code from the license, extracting the sensitive information and the digital signature, verifying the validity of the signature, and comparing and checking whether the sensitive information in the license is consistent with information correlated with the digital signature or not; generating an anti-counterfeiting two-dimensional code of the license by using a license anti-counterfeiting two-dimensional code generating module; extracting the sensitive information in a license to be issued, and signing the sensitive information by using the private key of a license issuer; coding the sensitive information and the signature to generate a two-dimensional code pattern; printing the two-dimensional code pattern on the license to form an anti-countering two-dimensional code on the license. By adopting the offline license anti-counterfeiting method, the license is effectively prevented from being scanned and duplicated, and the trueness of the license can be verified off line. The method is convenient to use, and high in security.

Description

technical field [0001] The invention relates to the field of information security, in particular to an offline certificate anti-counterfeiting method based on reliable digital signatures and two-dimensional codes. Background technique [0002] The common anti-counterfeiting methods of certificates include paper anti-counterfeiting (special paper, watermark, security thread), ink anti-counterfeiting, design and printing anti-counterfeiting, online inquiry, etc. Among them, online network or telephone inquiry is the most reliable, but online service also brings a lot of inconvenience. [0003] In recent years, a series of implementation schemes have appeared in the anti-counterfeiting of certificates: in the patent application 99113630.6, it is proposed that the printed text or other information on the certificate and the personal password of the certificate holder are encoded according to certain rules, and the obtained two sets of codes , according to the different nature of...

AI Technical Summary

Problems solved by technology

Generally speaking, the current two-dimensional code scheme is more responsible for carrying information. In the anti-counterfeiting application of certificates, a common shortcoming of ordinary two-dimensional codes is that the certificate information stored in it can be scanned, copy, the authenticity of the information must be verified by means of online inquiry

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