Research on Security Sandbox System Based on Computer Big Data Hyperledger Fabric Blockchain Platform

Abstract

This paper designs an "institution-business-system" multi-level security sandbox system from the perspective of cross-department data sharing and combined with Fabric blockchain technology. The system makes full use of the characteristics of blockchain technology, such as decentralization, immutable and consensus mechanism, to achieve collaborative services of secure sandbox facilities. Then this paper proposes a distributed and regulated privacy protection scheme that combines group signature, private address protocol, zero-knowledge proof and attribute encryption. This algorithm improves the group manager mechanism of group signature. The experimental results show that the scheme can ensure the data traceability and realize the supervision of both sides of the transaction, and improve the level of privacy protection of data on the chain.