基于椭圆曲线的会议密钥分配方案

Identity-based Conference Key Distribution Scheme

基于用户身份的密码系统是密码学中一种简单的密钥管理方法。在椭圆曲线密码体制上设计了一个基于用户身份的会议密钥分发系统,它能为各个用户产生一个共同的秘密会议密钥,并且可以抵御各种攻击;最后,分析了该方案的正确性和安全性。

Identity-based cryposystems can simplify key management ：in cryptosystems. A conference key distribution system is been proposed in the paper based on elliptic curve. It can generate one common secret communication key for each link in the network. Only public informations have been used in the whole process. The new scheme can detect both the uni-directional attack and the bi-directional attrack.