一种基于椭圆曲线的门限部分盲签名方案

摘要

通过对余昭平等人提出的一种基于椭圆曲线上的门限盲签名方案的分析，了解到该方案结合了椭圆曲线、门限盲签名的双重优势。在原方案的基础上提出了一种基于椭圆曲线的门限部分盲签名的方案，不仅保留了原方案的强可验证性性、不可伪造性等安全特性，还进一步增加了签名的稳定性、部分盲性及密钥共享等特性。最后，对新提出的方案进行了可证的安全性分析及效率分析，事实证明该方案安全性高、稳定性好。%The threshold blind signature based on ECDLP presented by Yu et al. combines advantages of elliptic curve signature and blind threshold signature. This study proposes a new threshold partially blind signature based on ECDLP, which not only keeps strong-verification and unforgeability, but also further increases stability and key sharing. Through provable security and efficiency analysis, it verifies the higher safety and good stability for the proposed new scheme.