一个基于冗余函数带消息恢复数字签名方案

通过对带消息恢复功能的数字签名方案的分析,在椭圆曲线加密体制上,提出了一个基于冗余函数的带消息恢复数字签名方案,并对该数字签名方案的正确性、冗余函数的选择和安全性进行了分析。分析表明,选择适当的冗余函数,该方案是正确的,并具有高可靠安全性,当需要签名的消息较短时,该方案还是高效的。

One Digital Signature Scheme with Message Recovery Based on Redundant Function

By means of the analysis for the digital signature scheme with message recovery,based on the elliptic curve cryptosystem,one digital signature scheme with message recovery based on redundant function was proposed,and the correctness of this digital signature,the choice and security of redundant functions were analyzed.The analysis results show that by selecting the appropriate redundant functions,the scheme is correct and it has high reliability and security,when the message which needed to be signed is short,the scheme is effective.