基于区块链的司法数据管理及电子证据存储机制

Blockchain-based Mechanism for Judicial Data Management and Electronic Evidence Storage

文章针对司法场景下的事务数据分类、实体类型及电子证据在实际应用中的存储与共享访问等需求,结合区块链技术,提出一种面向司法审判场景的电子数据安全存储链式结构。该结构分为司法联盟链JudChain和证据存储链EviChain两部分,实现对司法流程数据和电子证据的高效管理和安全存储,且具有完整的节点认证及区块生成流程。此外,文章还提出了应用于JudChain的共识协议,该协议对传统PBFT算法进行改进,降低了共识开销和交易时延,提升了共识效率和吞吐量。

According to the requirements of judicial data classification,entity types and storage and sharing of electronic evidence in practical application,combined with blockchain technology and fully considering its security and efficiency,this paper proposed a blockchain-based structure for secure storage of electronic evidence in judicial scene.With complete node authentication scheme and block generation process,this structure is composed of a judiciary alliance chain called JudChain and a storage chain for electronic evidence named EviChain,which realized efficient management and secure storage of judicial data and electronic evidence.Furthermore,this paper proposed a consensus protocol applied to JudChain,which comprehensively improves the traditional PBFT algorithm to reduce consensus overhead and transaction delay,and improve consensus efficiency and throughput.