摘要
文章利用椭圆曲线上双线性映射的特性,分别提出了基于身份的双方密钥协商方案和三方密钥协商方案。通过较少的步骤,同时实现密钥协商和用户相互认证,其代价低于使用证书的密钥协商方案。文章最后对方案的正确性、安全性进行了简单分析。
ID-based two-party and tri-party key agreement schemes are proposed, in which some characteristics of bilinear pairings are used. The users may arrange the shared key and authenticate each other by a of scheme has lower cost than those by certificates. Finally, its validity and security characters
出处
《信息安全与通信保密》
2007年第3期102-104,共3页
Information Security and Communications Privacy
关键词
密钥协商
双线性对
基于ID
DIFFIE-HELLMAN问题
key agreement
bilinear pairings
ID-based
Diffie-Hellman problem few messages. This kind are briefly analyzed