基于区块链和动态累加器的跨域认证方案  

Cross-domain Authentication Scheme Based onBlockchain and Dynamic Accumulator

作　　者：张柯 黄晓芳[1] ZHANG Ke;HUANG Xiaofang(College of Computer Science and Technology,Southwest University of Science and Technology,Mianyang 621010,China)

机构地区：[1]西南科技大学计算机科学与技术学院,四川绵阳621010

出　　处：《计算机测量与控制》2021年第8期206-210,共5页Computer Measurement &Control

基　　金：国家自然科学基金青年基金资助项目(61702429);四川省组织部基金资助项目(17sjjg02);四川省教育厅基金资助项目(17zd1119);四川省军民融合研究院基金资助项目(18sxb022);四川省科技厅重点研发项目(21ZDYF3119)。

摘　　要：基于区块链的跨域认证利用区块链代替传统的CA机构颁发区块链证书,借助区块链的去中心化和透明性,实现了信任的去中心化;针对现有基于区块链的跨域认证存在着跨域认证效率不高,没有完整的证书管理功能、区块链存储证书开销大的问题,提出了基于区块链和动态累加器的跨域认证方案,设计了区块链证书格式,描述了跨域认证协议,将区块链证书信息映射为累加值,提升了验证效率,通过在智能合约中构建动态累加器,实现证书的注册,撤销和查询功能;实验结果表明,该方案能够有效降低区块链证书存储成本,提升跨域认证效率。Cross-domain authentication based on blockchain uses blockchain to replace traditional CA institutions to issue blockchain certificates,and with the help of the decentralization and transparency of blockchains,the decentralization of trust is realized.In view of the existing cross-domain authentication based on blockchain,the efficiency of cross-domain authentication is not high,there is no complete certificate management function,and the blockchain storage certificate is expensive.A cross-domain based on blockchain and dynamic accumulator is proposed.In the authentication scheme,the blockchain certificate format is designed,the cross-domain authentication protocol is described,the blockchain certificate information is mapped to the accumulated value,and the verification efficiency is improved.By constructing a dynamic accumulator in the smart contract,the registration and revocation of the certificate and query function are realized.Experimental results show that this scheme can effectively reduce the cost of blockchain certificate storage and improve the efficiency of cross-domain authentication.

关 键 词：区块链 跨域认证 动态累加器 智能合约 

分 类 号：TP309[自动化与计算机技术—计算机系统结构] TP393[自动化与计算机技术—计算机科学与技术]