一种基于身份的DH密钥交换协议

摘要

基于DH困难问题，提出一种基于身份的两方密钥交换协议，并对协议的安全性进行了分析。所提出的协议中，会话密钥的生成需要参与方的长期私钥和选取的随机数。安全性分析表明，所提出的协议能满足两方密钥交换协议的安全性要求。%Based on the DH problem, an ID-based key exchange protocol was proposed and security of the proposed protocol was analyzed. In the proposed protocol, the generation process of session key needs the participants＇ long- lived secret key and chosen random nonce. The analysis of security shows that the proposed protocol can satisfy the security requirements of two- party key exchange protocol.