基于身份的组合公钥管理方案

Combined Public Key Management Scheme Based on IBE

基于椭圆曲线双线性对的特殊性质,设计一种基于身份的组合公钥密钥管理方案。该方案按照组合公钥中用户密钥生成用户公钥,简化了身份到椭圆曲线点群的映射。本方案解决了共谋攻击问题,并且解决了用户私钥安全分发的问题。

Based on the special nature of bilinear pairings on elliptic curves, this paper proposed a new combined public key management scheme based on identity-based encryption. This scheme produces user public key according to the method of CPK and simplify the the map from ID to the group of points on an elliptic curve. This scheme solution collusin attack and problem of distributing the user＇s private keys.