基于离散对数加密系统的密钥认证模式  

A new key authenticated scheme for cryptosystems based on discrete logarithms

作　　者：何桂萍[1] 

机构地区：[1]四川联合大学计算机系,成都610065

出　　处：《计算机工程与设计》2000年第5期26-29,共4页Computer Engineering and Design

摘　　要：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。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.

关 键 词：离散对数 公开密钥 加密系统 密钥认证模式 

分 类 号：TN918.4[电子电信—通信与信息系统] TP309[电子电信—信息与通信工程]