Judicial electronic evidence system and method based on alliance chain and homomorphic encryption

An electronic evidence and homomorphic encryption technology, applied in the field of judicial electronic evidence system, can solve the problems of poor privacy protection of data and user information, and achieve the effect of avoiding consensus problems

Active Publication Date: 2021-04-30
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the object of the present invention is to provide a judicial electronic evidence system and method based on alliance chain and homomorphic encryption, which solves the problem of poor privacy protection of data and user information in the existing judicial electronic evidence system

Method used

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  • Judicial electronic evidence system and method based on alliance chain and homomorphic encryption
  • Judicial electronic evidence system and method based on alliance chain and homomorphic encryption
  • Judicial electronic evidence system and method based on alliance chain and homomorphic encryption

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Embodiment Construction

[0094] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0095] Please refer to image 3 , the present invention provides a judicial electronic evidence system based on consortium chain and homomorphic encryption, including a key generation center KGC, a cloud platform CP, a computer server CSP, a certificate depository user end and a notary end; the key generation center The cloud platform is connected with the computer server, the certificate storage client and the notary respectively.

[0096] In this embodiment, the symbol variables are as shown in Table 1:

[0097] Table 1: Symbolic variables

[0098]

[0099] In this embodiment, the key generation center uses the Paillier algorithm PCTD with a threshold decryption function to encrypt judicial information, specifically:

[0100] (1) Parameter generation: p and q are large prime numbers, κ is a security parameter, Let N=pq and λ=lcm(p-1,q-1) / 2, wh...

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Abstract

The invention relates to a judicial electronic evidence system based on an alliance chain and homomorphic encryption. The judicial electronic evidence system comprises a key generation center KGC, a cloud platform CP, a computer server CSP, an evidence storage user side and a notary side. The secret key generation center is connected with the certificate storage user side and the notary side. The cloud platform is connected with the computer server side, the evidence storage user side and the notary side. According to the system and method, the problems that after a traditional centralized judicial electronic evidence system is attacked by a hacker, data is prone to being lost and tampered are solved, and secret calculation can be provided under the condition that privacy of the data and user information in the judicial electronic evidence system is protected.

Description

technical field [0001] The invention relates to the field of data encryption, in particular to a judicial electronic evidence system and method based on alliance chain and homomorphic encryption. Background technique [0002] With the emergence of the cloud computing platform, more and more enterprises and individuals hope to use this emerging technology to migrate a large amount of data to the cloud platform. With the rapid development of science and technology, the amount of data is growing at an increasingly rapid rate . A large amount of new data is generated all the time, but many old data face the risks of easy data loss, high storage costs, and easy data tampering, and there is a need for long-term safe and reliable storage. With the development of digitization, and the increasing trend of organizational policies and laws and regulations to preserve data for a specific period of time, there is a growing need for long-term data storage solutions. [0003] Electronic ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/62G06F21/60G06F21/64
CPCG06F21/6245G06F21/6227G06F21/602G06F21/604G06F21/64G06F2221/2107G06F2221/2141G06F2221/2151
Inventor 杨旸郑孝勇魏增涛
Owner FUZHOU UNIV
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