计算机工程 ›› 2012, Vol. 38 ›› Issue (2): 138-140.doi: 10.3969/j.issn.1000-3428.2012.02.044

• 安全技术 • 上一篇    下一篇

无对运算的无证书隐式认证及密钥协商协议

杨 路   

  1. (江南大学物联网工程学院,江苏 无锡 214122)
  • 收稿日期:2011-08-01 出版日期:2012-01-20 发布日期:2012-01-20
  • 作者简介:杨 路(1961-),男,讲师、硕士,主研方向:信息安全,物联网技术

Certificateless Implicit Authentication and Key Agreement Protocol Without Pairing Operation

YANG Lu   

  1. (School of Internet of Things Engineering, Jiangnan University, Wuxi 214122, China)
  • Received:2011-08-01 Online:2012-01-20 Published:2012-01-20

摘要: 提出一种不含对运算的无证书隐式认证及密钥协商协议。该协议基于离散对数问题和可计算Diffie-Hellman假设,仅需要3次指数运算和2次散列运算,可避免复杂的双线性对运算。在随机预言机模型下的分析结果表明,该协议具有强安全性,计算开销低于同类型的其他协议。

关键词: 无证书, 双线性对, 离散对数问题, 隐式认证, 密钥协商

Abstract: Due to the large amount of computing cost in bilinear pairing, this paper proposes a certificateless implicit authentication and key agreement protocol without pairing operation, and proves its security in the random oracle model. The new protocol is based on the discrete logarithm problem and the Computational Diffie-Hellman(CDH) assumption, requires only three times exponentiations and two times hash functions. The computing costs of this protocol lower than costs of the other ones that are the same type with the one in this paper.

Key words: certificateless, bilinear pairing, discrete logarithm problem, implicit authentication, key agreement

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