Abstract: On the basis the difficulty of solving discrete logarithm, this paper presents anonymous proxy signature scheme with traceable signer identity. When the original signer can not fulfill his signing responsibility, one of the proxy signers can sign a submitted message. In case of dispute, the original signer can decide who signed it by looking up his data bank. Analysis result shows that this scheme has little computation, and it has higher security.

Key words: proxy signature, anonymity, traceability, forgery attack

摘要： 在求解离散对数困难性的基础上，提出一种可追踪签名者身份的匿名代理签名方案。当原始签名人不方便签名时，代理人中的任何一个可进行匿名代理签名。当对某个代理签名发生争议时，原始签名人能找出签署消息的代理人。分析结果表明，该方案运算量小，具有较高的安全性。

关键词: 代理签名, 匿名性, 可追踪性, 伪造攻击

CLC Number: 

• TP309