基于离散对数加密系统的密钥认证模式

在公开密钥制中保护公开密钥使其不被篡改是很重要的，大部分密钥认证模式都要求一个或多个认证机构来认证密钥。文中针对基于离散对数加密系统介绍一种新的密钥认证模式，该模式类似于传统的基于证明的模式，但不要求认证机构，用户的公开密钥证明是将其口令与私有密钥两者结合生成的，该模式具有高的安全性且认证过程简单。

A new key authenticated scheme for cryptosystems based on discrete logarithms

Protecting public keys against intruders is very important in public key cryptosystems.Most key authentication schemes require one or more authorities to authenticate keys.In this paper, a new scheme f or cryptosystems based on discrete logarithms is provided.It is simila r to the conventional certificate-based schemes,yet it requires no aut horities.The certificate of the public key of a user is a combination of his password and private key.The scheme is highly secure and authen tication process is very simple.