摘要
为了保证电子证据链的完整性,提出采用区块链和云存储的混合架构,利用电子证据文件构建默克尔树,并与案件号、存证人员身份信息共同组成区块体。以上一区块的Hash值、区块编号、区块体默克尔树根节点Hash值和存入时间戳组成区块头,将区块头和区块体共同存储到相应的区块链中,最后通过二维码实现对电子证据的检索、查询和验证。保证了电子证据真实、可溯源、不可篡改,提高电子证据的可信度。
In order to ensure the integrity of the electronic evidence chain,a hybrid architecture of block-chain and cloud storage is proposed.The electronic evidence file is used to construct the Merkel tree,and to form the block body together with the case number and the identity information of the depositor.The Hash value of the previous block,the block number,the Hash value of the block body Merkel root node,and the time stamp of the block form the block header.The block header and the block body are collectively stored in the corresponding block-chain,and finally generate the two-dimensional code.The code implements the retrieval,query and verification of electronic evidence.It ensures that electronic evidence is truly traceable,cannot be falsified,and improves the credibility of electronic evidence.
作者
李振汕
Li Zhenshan(Department of Information Engineering,Guangxi Police College,Nanning,Guangxi 530200,China)
出处
《计算机时代》
2019年第12期1-4,共4页
Computer Era
关键词
电子证据
区块链
完整性
默克尔树
electronic evidence
block-chain
integrity
Merkel tree
