Journal of Software

Two Party Certificateless Key Agreement Schemes

Wenhao Liu, Chunxiang Xu

Published Nov 14, 2011• 0 citations

Abstract

给出了一个无双线性对的无证书两方密钥协商方案,并演示了这些不安全无证书方案存在的攻击.只要每方至少有1 个未泄露的秘密值,该方案在最强的安全模型下就是安全的.即使密钥生成中心知道双方的临时私钥或显示双方的秘密值/替换公钥(但不能同时),但只要计算Diffie-Hellman 假设成立,该方案在随机预言机模型下也被证明是安全的.该方案消除了对运算,与其他无证书密钥协商方案相比,该方案是己知无证书安全协商方案中计算复杂度最低的.该方案尤其适合于带宽受限的通信环境中使用,如Ad Hoc 网络、无线传感器网络等.

DOI: 10.3724/sp.j.1001.2011.03942

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