常用的口令认证机制及其安全性分析

口令认证技术是最常用的身份认证技术,它可以分为两大类:静态口令和动态口令,而且动态口令的实现方法很多。本文初步介绍了典型的静态口令和三种动态口令的基本形式和特征,并对它们的安全性进行了分析,以便读者了解不同的口令认证技术的特点和优劣,在选择具体口令认证技术时有个参考和比较。

Mechanism of Password Authentication in Common Use and Its Security Analysis

Password authentication as one of technology of identity authentication is most frequently adopted. It can be sorted into two classes.:static password authentication and dynamic password authentication.There are a lot of methods to produce dynamic password.This article introduces typical static password authentication and three kinds of dynamic password authentication.,it analyses their security in order to make reader know characteristics of different kinds of password authentication.,give them advice when they choose technology of password authentication.