| 引用本文: | 刘婷婷,王文彬.云计算中基于公平的安全判定相等协议的身份认证方案.[J].国防科技大学学报,2013,35(5):120-123 ,139.[点击复制] |
| LIU Tingting,WANG Wenbin.An authentication scheme based on fair equality-determination protocol in cloud computing[J].Journal of National University of Defense Technology,2013,35(5):120-123 ,139[点击复制] |
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| 云计算中基于公平的安全判定相等协议的身份认证方案 |
| 刘婷婷1, 王文彬2 |
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(1.信息工程大学，河南 郑州 450012;2.61660部队，北京100840)
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| 摘要: |
| 云用户与云之间的双向认证是云计算中用户访问云中资源和数据的重要前提。为解决云计算环境下基于口令的身份认证方式存在的问题，并保证海量用户环境下认证的效率，对一个常数复杂性的判定口令相等的百万富翁协议进行了改进，提出了一个公平的安全双方判定相等协议，可以公平且秘密地比对认证方与被认证方所拥有口令的一致性。在上述协议的基础上，基于具有语义安全的加法同态算法——Bresson算法，实现了一个保护云用户和云服务提供者双方隐私的身份认证方案，最后，证明了该身份认证方案在判定相等方面的正确性，并给出了方案的安全性分析。 |
| 关键词: 云计算 公平的安全双方判定相等协议 Bresson算法 身份认证 |
| DOI： |
| 投稿日期：2013-01-12 |
| 基金项目:国家科技重大专项课题资助项目（2012ZX03002003） |
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| An authentication scheme based on fair equality-determination protocol in cloud computing |
| LIU Tingting1, WANG Wenbin2 |
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(1.Information Engineering University, Zhengzhou 450012, China;2.Unit 61660, Beijing 100840, China)
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| Abstract: |
| Mutual authentication between the user and the cloud is an essential requirement for the user to access the public cloud in cloud computing. In order to solve the problems of password-based identity authentication scheme in the cloud computing environment and to improve the efficiency of authentication in the environments of mass users, a fair equality-determination protocol was presented by developing an equality-determination protocol of constant complexity. The protocol proposed can compare the passwords between the user and the cloud fairly and secretly. Based on the protocol, a two-party privacy-protected identity authentication scheme based on semantically secure algorithm-Bresson algorithm was further presented. Finally, the correctness of the scheme was proved and its security was analyzed. |
| Keywords: cloud computing fair equality-determination protocol Bresson algorithm identity authentication |
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