基于区块链数据共享技术的可追溯共识机制  

Traceability consensus mechanism based on blockchain data sharing technology

作　　者：刘晨[1] 赵迪[1] LIU Chen;ZHAO Di(State Grid Tianjin Electric Power Company,Tianjin 300010,China)

机构地区：[1]国网天津市电力公司,天津300010

出　　处：《信息技术》2021年第12期112-117,共6页Information Technology

摘　　要：虽然区块链技术发展迅速,但是现有的区块链共识机制安全性较低、资源消耗较大,设计新共识机制就尤为重要,为此通过改进共识机制来实现区块链的数据共享和追溯。首先利用信用模型改进PoW算法,然后在此基础上提出基于门限密码方案的TCCM共识算法,最后将其加入区块链中构建出一种新的数据共享和追溯方案。结果显示,CPoW算法随机性得到提高,TCCM的计算量在1W以上,并且资源消耗较低,可提高数据共享的安全性,实现数据的追溯。说明基于区块链数据共享技术的可追溯方案具有可行性,能够为大数据共享与数据流转检测提供新的技术思路。Despite the rapid development of blockchain technology,the existing blockchain consensus mechanism has disadvantages,including low security and high resource consumption,it is particularly important to design a new consensus mechanism.Therefore,the data sharing and traceability of blockchain can be realized by improving the consensus mechanism.Firstly,credit model is used to improve PoW algorithm,and then TCCM consensus algorithm based on threshold cryptography scheme is proposed.Finally,a new data sharing and traceability scheme is constructed by adding it into the blockchain.The results show that the randomness of CPoW algorithm is improved,the calculation amount of TCCM is more than 1W,and the resource consumption is low,which improves the security of data sharing and realizes data traceability.It shows that the traceability scheme based on blockchain data sharing technology is feasible and can provide new technical ideas for big data sharing and data flow detection.

关 键 词：计算机应用技术 区块链 共识机制 TCCM协议 数据追溯 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]