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多素数改良RSA算法的综合研究 被引量:1
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作者 廖彬宇 赖晓风 陈旭 《兰州工业学院学报》 2019年第2期57-60,共4页
为了进一步提升传统RSA算法的综合性能,在深入了解算法原理之后,将传统RSA算法转换为多素数改良RSA算法,在此基础上设计了3种优化方案.首先参数替换优化方法在密钥生成阶段引入了一个变量代替模数n,避免了对密钥的直接攻击.其次共享密... 为了进一步提升传统RSA算法的综合性能,在深入了解算法原理之后,将传统RSA算法转换为多素数改良RSA算法,在此基础上设计了3种优化方案.首先参数替换优化方法在密钥生成阶段引入了一个变量代替模数n,避免了对密钥的直接攻击.其次共享密钥优化方法在加密和解密阶段新增秘密密钥来提升运算复杂度,增加了破解难度,然后混合安全密钥优化方法则是在公钥和私钥的计算中加入许多中间因素,这使得计算更复杂,提升了安全性,最后对3种算法的性能进行了分析比较,结果表明混合安全密钥优化算法在安全性方面更胜一筹. 展开更多
关键词 RSA算法 参数替换 共享密 混合安全密钥
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Alliance-Authentication Protocol in Clouds Computing Environment 被引量:7
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作者 Zhang Qikun Li Yuanzhang +1 位作者 Song Danjie Tan Yuan 《China Communications》 SCIE CSCD 2012年第7期42-54,共13页
Security has been regarded as one of the hardest problems in the development of cloud computing. This paper proposes an AllianceAuthentication protocol among Hybrid Clouds that include multiple private clouds and/or p... Security has been regarded as one of the hardest problems in the development of cloud computing. This paper proposes an AllianceAuthentication protocol among Hybrid Clouds that include multiple private clouds and/or public clouds. Mu tual authentication protocol among entities in the IntraCloud and InterCloud is proposed. Blind signature and bilinear mapping of automorphism groups are adopted to achieve the InterCloud Alli anceAuthentication, which overcome the complexi ty of certificate transmission and the problem of communication bottlenecks that happen in tradi tional certificatebased scheme. Blind key, instead of private key, is adopted for register, which avoids 展开更多
关键词 Alliance-Authentication direct product DECOMPOSITION bilinear mapping cloud computing
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