一种新的基于智能卡的身份认证方案

论文在Hwang-Li方案思想的基础上,针对已有的身份认证方案的缺陷,提出了一种基于椭圆曲线密码机制的用户认证方案。该方案中口令由用户选择掌握,注册时增强了安全性,另外,该方案还可根据用户需要随时更改口令,这些都是与以往方案最大的不同之处。该方案的安全性是建立在有限域上非超奇异椭圆曲线的椭圆曲线离散对数难问题之上的,从理论上分析该方案是安全的。

A New Identity Authentication Scheme Based on Smart Cards

Inspired from Hwang-Li's scheme,an Elliptic Curve identity authentication scheme based on smartcards is presented due to the defects of present scheme. In this scheme,the password is controlled by the user,and can be changed at any time; these characteristics are different from present schemes. The safety of this scheme is based on the Elliptic Curve Discrete Logarithm difficult Problem of non-super singular elliptic curve over finite field,and the scheme is secure in theory.