Blockchain-based electronic evidence storing method and system and blockchain-based electronic evidence verifying method and system

Abstract

The invention relates to a blockchain-based electronic evidence storing method and system and a blockchain-based electronic evidence verifying method and system. The electronic evidence storing methodcomprises the steps of after an evidence storing person passes the identity authentication, forming an evidence storing data set according to an electronic evidence set formed by evidence collection,the identity information of the evidence storing person and an evidence storing time stamp; signing the evidence storing data set and submitting to a blockchain system by the evidence storing person;and generating a two-dimensional code through a smart contract, wherein the two-dimensional code comprises the certificate data set, the signature of the evidence storing person, the relevant information of an evidence storing transaction in a blockchain and a URL (Uniform Resource Locator) address pointing to the evidence storing transaction. The electronic evidence verifying method comprises the steps of after an evidence verifying person passes the identity authentication, scanning the two-dimensional code to view the relevant information; clicking on the URL to view the evidence storing transaction; and carrying out the consistency comparison of the electronic evidence set. The methods disclosed by the invention have the beneficial effects that the supporting information is added intothe electronic evidence set and the applicability of the electronic evidence is guaranteed; the storing of the electronic evidence set is carried out through the blockchain system and the tamper resistance of the electronic evidence is guaranteed; and the legality and the non-repudiation of the operators are guaranteed through the signature verification of the evidence storing person and the evidence verifying person.

Description

technical field

[0001] The present invention relates to the field of computer technology, in particular to a method and system for admissibility storage and verification of electronic evidence based on block chains. Background technique

[0002] Existing electronic evidence storage and verification systems mostly use a centralized database system to store electronic evidence sets, and then present the relevant information of the electronic evidence sets in the form of files, and compare the verified electronic evidence sets with the electronic evidence sets in the centralized database system during verification. , if consistent, it is determined that the electronic evidence set has not been tampered with and can be adopted.

[0003] In the patent "Admissibility Verification Method and System of Electronic Data Evidence" (CN201310516312.3), an electronic evidence storage and verification system is proposed. The system first obtains the digital summary of the electronic eviden...

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