一个适用于逻辑加密IC卡的认证加密方案

An Authentication and Encryption Method Suitable for Intelligent Memory IC Card

从逻辑加密 IC卡的特点与认证加密设计的原则出发 ,比较了当前密码学领域中常用加解密算法的优缺点 ,提出了一个便于芯片实现 ,经济合理的逻辑加密 IC卡认证加密方案 .并详细讲述了它的特点 ,给出了相互认证的过程和算法实现的方法 .

For the application of intelligent memory IC card, it is critical to design a suitable method of authentication and encryption. The characteristic of intelligent IC card and the principle of authentication and encryption method are discussed in this paper. After comparing the merits and demerits of some popular encryption algorithms, a new authentication and encryption method, which can be realized in chip economically is presented. The chief features of the method, the authentication procedure between IC card and IC card interface device and realization of our encryption algorithm are also discussed.