论文部分内容阅读
Chameleon签名方案是一种基于Hash-and-Sign模式的非交互签名方案,就效率而言该方案和普通的签名方案类似.Chameleon签名方案具有非转移性,也就是只有指定的接收方才可以验证签名的有效性.文中提出了一种基于双线性对和身份的ChameleonHash函数,并以此构建了一个基于身份的Chameleon签名方案.和传统的ChameleonHash方案相比,基于身份的Chameleon签名方案中公开Hash密钥的所有者无需恢复相应的私钥.该方案具有普通Chameleon签名方案的所有特点,同时还具有利用双线性对构建的基于身份的密码系统的诸多优点.
The Chameleon signature scheme is a Hash-and-Sign scheme based non-interactive signature scheme that is similar in efficiency to a normal signature scheme. The Chameleon signature scheme is non-transitive, meaning that only the intended recipient can verify the signature This paper proposes a ChameleonHash function based on bilinear pairing and identity, and constructs an identity-based Chameleon signature scheme.Compared with the traditional ChameleonHash scheme, the identity-based Chameleon signature scheme discloses Hash The owner of the key does not need to recover the corresponding private key.The scheme has all the features of a normal Chameleon signature scheme and also has many advantages of using an identity-based cryptosystem constructed with bilinear pairs.