Computer and Modernization

Previous Articles     Next Articles

A Secure and Efficient Certificateless Authenticated Key Agreement Scheme

  

  1. 1. Department of Basic Courses, Shaanxi Polytechnic Institute, Xianyang 712000, China; 2. School of Science, Xi’an University of Technology, Xi’an 710054, China
  • Received:2013-11-25 Online:2014-03-24 Published:2014-03-31

Abstract: 针对两方密钥协商方案普遍存在高效性和安全性不可兼顾问题,在无证书公钥密码体制下给出一种安全高效的可认证两方密钥协商方案。该方案使用一般的而非映射到点的Hash函数并预先处理一个双线性对运算,降低计算复杂度,提高了执行效率;增加用户间的身份认证,提高了安全性。性能分析表明,新方案满足前向安全性;抗密钥泄露伪装攻击;已知会话临时秘密信息安全性等目前期望的安全属性,且有较好的执行效率。

Key words:  certificateless cryptography system, authentication, bilinear pairing, Diffie-Hellman, forward secrecy

CLC Number: