椭圆曲线上具有信息恢复的签名方案的研究

基于椭圆曲线的数字签名系统设计是目前数字签名系统设计的热点之一。论文在椭圆曲线上设计出自我鉴定公钥来建立一个新的数字签名方案,该方案利用用户标识和公钥就可以在通过签名恢复信息的同时又具备认证功能。并在此基础上提出两个扩展方案:一个满足了认证加密、恢复明文的功能;另一个则是第二个方案在处理大信息时的推广。

The Research of Digital Signature Scheme with Message Recovery on Elliptic Curve

The design of digital signature system based on elliptic curve is one of the local points in design of digital signature systems.This paper designs a new signature scheme of the self-certified public keys based on elliptic curve.This scheme has two properties that the signer's key and identity can simultaneously be authenticated in verifying the signature,and the receiver also obtains the message.Moreover,this paper also presents two variants about the scheme:one is an authenticated encryption scheme that only allows a specified receiver to verify and recover the message,the other is extension that the second scheme deals with the large message communication.