计算机工程与应用 ›› 2008, Vol. 44 ›› Issue (23): 120-122.DOI: 10.3778/j.issn.1002-8331.2008.23.037

• 网络、通信、安全 • 上一篇    下一篇

基于身份的安全密钥交换方案

戢 伟,辛小龙   

  1. 西北大学 数学系,西安 710127
  • 收稿日期:2007-10-23 修回日期:2008-01-02 出版日期:2008-08-11 发布日期:2008-08-11
  • 通讯作者: 戢 伟

Efficient identity-based key agreement protocols with required security

JI Wei,XIN Xiao-long   

  1. Department of Mathematics,Northwest University,Xi’an 710127,China
  • Received:2007-10-23 Revised:2008-01-02 Online:2008-08-11 Published:2008-08-11
  • Contact: JI Wei

摘要: 针对此前提出的一轮密钥交换方案都不满足密钥控制安全性的问题,提出了一个新的基于身份的密钥交换方案。新方案将两个基础密钥交换方案组合,并通过密钥管理中心转发密钥元素,有效地避免了密钥控制,并且每次生成会话密钥一次配对运算,效率比此前的基于身份的密钥交换方案有很大的提高。

关键词: 基于身份, 密钥交换, 双线性对, 椭圆曲线

Abstract: Because none of the exit one-round identity-based key agreement protocols satisfies key control attribute,a new one-round identity-based key agreement protocol is proposed.The new protocol originates from two basic protocols.To satisfy key control attribute,the key components are transmitted by KGC.The new protocol,which only needs one pairing,is more efficient than other identity-based key agreement protocols.

Key words: identity-based, key agreement protocol, bilinear pairing, elliptic curves