Block chain-based trusted data source management method, signature equipment and verification equipment

Abstract

The invention discloses a block chain-based trusted data source management method, signature equipment and verification equipment. The method comprises the steps: carrying out encryption of issued data through a private key, and forming a digital signature, wherein the private key and a public key corresponding to the private key are generated by a data source end; and sending the data and the digital signature to a verification end, so that the verification end obtains a public key in a block chain to verify the digital signature, and determines whether the data is trusted. According to the block chain-based trusted data source management method provided by the embodiment of the invention, the data source end automatically generates the private key and the public key of an asymmetric cryptography algorithm, the data source end automatically stores the private key for later use, disclosure is not needed, the data source end only needs to disclose the public key, and the risks that the private key is peeped and intercepted in the transmission process are avoided.

Description

technical field [0001] This application relates to the technical field of block chain, and in particular to a trusted data source management method, signature device and verification device based on block chain. Background technique [0002] In the field of information communication, information may be subject to various attacks such as theft, tampering, forgery, and replay at any time, which has become a bottleneck in the construction of an information society. At the same time, the existence of the above-mentioned various attacks has also become a reason for denial. In order to prevent information from being illegally accessed, people often take measures such as limiting IP addresses, limiting domain names, and using virtual private networks (Virtual Private Network, VPN) to prevent information from being illegally stolen; Encryption algorithms such as symmetric encryption) to prevent information from being illegally stolen. [0003] The management of the private key in t...

AI Technical Summary

Problems solved by technology

The centralized asymmetric key management method has the following shortcomings: (1) The password distribution process, especially the private key distribution process, has the possibility of being peeped and intercepted

(2) The centralized password server has the possibility of being artificially controlled and tampering with the data stored in the server, and its credibility is not as high as that of the blockchain

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