《计算机应用研究》|Application Research of Computers

基于多层区块链的跨域认证方案

Cross domain authentication scheme based on multi layer blockchain

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作者 张亚兵,邢镔
机构 1.重庆大学 计算机学院,重庆 400044;2.信息物理社会可信服务计算教育部重点实验室,重庆 400044;3.重庆工业大数据创新中心有限公司,重庆 400707;4.工业大数据应用技术国家工程实验室,重庆 400707
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文章编号 1001-3695(2021)06-006-1637-05
DOI 10.19734/j.issn.1001-3695.2020.09.0215
摘要 针对现有集中式身份认证方式在物联网应用场景下管理成本高、异构信任域之间的证书管理困难以及跨域认证场景下多信任域难以互相信任的问题,提出了一种基于多层区块链的跨域认证方案。使用本地区块链来进行物联网应用场景下分布式的节点管理,使用公共区块链来进行区块链之间的跨链身份认证,设计了跨域认证协议。针对跨域访问时存在的多个管理域相互信任问题,提出了基于信任度评价的委托权益证明(DPOS)来评估节点的可信度。最后对跨域认证方案进行了安全和效率分析,分析表明该方案在保证较好安全性和有效性的基础上,提升了跨域认证的效率。
关键词 跨域身份认证; 区块链; 物联网; 共识算法; 智能合约
基金项目 国家重点研发计划资助项目(2017YFB0802400)
本文URL http://www.arocmag.com/article/01-2021-06-006.html
英文标题 Cross domain authentication scheme based on multi layer blockchain
作者英文名 Zhang Yabing, Xing Bin
机构英文名 1.College of Computer Science,Chongqing University,Chongqing 400044,China;2.Key Laboratory of Dependable Service Computing in Cyber Physical Society,Chongqing 400044,China;3.Chongqing Innovation Center of Industrial Big-Data Co. Ltd. ,Chongqing 400707,China;4.National Engineering Laboratory for Industrial Big-Data Application Technology,Chongqing 400707,China
英文摘要 In order to solve the problem of high management cost of centralized identity authentication in the application scenario of Internet of Things(IoT), and solve the problem of mutual trust and certificate management between heterogeneous trust domains, this paper proposed a cross-domain authentication scheme based on multi-layer blockchain. This scheme used local blockchain for distributed node management in IoT application scenarios, and used public blockchain for cross chain identity authentication between blockchains. This paper designed a protocol for cross domain authentication. In order to solve the problem of mutual trust among multiple management domains in cross-domain access, this paper proposed a DOPS consensus based on trust evaluation to evaluate the credibility of nodes. Finally, it analysed the security and efficiency of cross domain authentication scheme. The analysis shows that the scheme has good security and effectiveness, and improves the efficiency of cross domain authentication.
英文关键词 cross-domain authentication; blockchain; Internet of Things; consensus algorithm; smart contract
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收稿日期 2020/9/8
修回日期 2020/10/30
页码 1637-1641
中图分类号 TP309;TP391
文献标志码 A