Block chain-based evidence preservation method and apparatus

Abstract

The invention discloses a blockchain-based evidence preservation method, which is applied to a network system with master nodes and slave nodes, including: each slave node performs identity verification to the master node, and assigns a pair of secret keys to the slave nodes that pass the identity verification. key, and write the registration information of the slave node into the blockchain; after the master node responds to the corresponding slave node with the evidence upload request received, the slave node signs the electronic evidence to be uploaded with the corresponding private key and sends To the master node; according to the registration information of each slave node in the blockchain, verify the legitimacy of the slave node and the authenticity of the signature of the corresponding electronic evidence, store the verified electronic evidence to the cloud storage server and generate the corresponding digital fingerprint, Write the generated digital fingerprint into the blockchain along with the corresponding timestamp. The evidence preservation method of the present invention has strong real-time performance, can save a lot of time, and does not require the participation of a third-party notary organization, thereby saving social resources.

Description

technical field [0001] The invention relates to the technical field of information security, in particular to a blockchain-based evidence preservation method and device. Background technique [0002] With the continuous development of electronic information technology, the network has become an indispensable part of people's lives. At the same time, the number of disputes caused by the network is increasing, and electronic evidence has also entered the judicial field. new challenges. Electronic evidence is carried by electronic media, including audio recordings, surveillance videos, chat records, transfer vouchers, transaction order information, documents, images, etc. It is all electronic information, records and items used to prove the authenticity of a case. In order to trace the transaction situation, prevent dishonesty, or verify the original oral agreement and statement content afterwards, it is necessary to reproduce the scene at that time in the form of electronic e...

AI Technical Summary

Problems solved by technology

If the traditional preservation method is adopted, it needs to be notarized by a notary office or submit an application to the court. The operation is cumbersome and time-consuming, which cannot meet the efficient and timely requirements of electronic evidence, and the notarization and application materials are complicated, consuming a lot of manpower, material resources and social resources.

[0005] Although the existing technology uses digital signatures for evidence preservation, it is difficult to guarantee the authenticity of data

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