摘要： 给出了一种新的基于ＥＩＧａｍａｌ数字签名加密形式的不可否认数字签名认证方案，使得能在不暴露用户安全信息的前提下实现其身份认证。因而该方案具有很高的安全性。

关键词: 数字签名, 用户认证, 零知识证明

Abstract: A new undeniable signature scheme is presented which combined EIGamal signature scheme with its encryption form,which enable an authentication system to validate a user's identity without exposing the user's secret information. Thus the schemes have very high security class.

中图分类号: 

• TP393