Electronic signature method, device, device and medium

Abstract

An embodiment of the application discloses an electronic signature method. An electronic device signs a seal file by using a private key to obtain a signature file, and generates a signature file digest according to a digest algorithm and the signature file. A signature information digest is generated according to the signature information and the digest algorithm. The signature information includes at least a signature file, a signature file digest and a digital signature certificate. The signature encryption information is generated by encrypting the signature information and the signature information digest with the public key of the third party fair organization, and the signature encryption information is stored in the block chain network. The signature encryption information is generated by encrypting the necessary information generated in the process of electronic signature with the public key of the third party fair organization, which ensures that other organizations or individuals except the third party fair organization can not decrypt the signature encryption information privately, and reduces the risk of information being tampered with or stolen; The signature encryption information is stored in the block chain network with anti-tamper mechanism, which ensures the authenticity and security of the information.

Description

technical field [0001] The present application relates to the technical field of information security, and in particular to an electronic signature method, device, equipment and computer-readable storage medium. Background technique [0002] With the popularization of the Internet and the rapid development of various e-commerce activities and e-government activities, electronic signatures have been widely used in various fields, such as electronic contract signing, safe access to sites, online bidding, online ordering, and secure online official documents send etc. [0003] Electronic signature is a form of electronic signature. It uses image processing technology to convert electronic signature operation into the same visual effect as paper document sealing operation. At the same time, electronic signature technology can ensure the authenticity and integrity of electronic information. Integrity and non-repudiation of the signer. [0004] At present, the implementation sch...

AI Technical Summary

Problems solved by technology

However, because the way ordinary databases store data is easy to be cracked, the stored data is easy to be tampered with or stolen, resulting in the authenticity and security of the data cannot be guaranteed

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