基于身份的安全密钥交换方案

Efficient identity-based key agreement protocols with required security

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。

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.