摘要： 介绍一种利用普通存储卡特殊设计出的多功能IC卡及其系统，简述利用DES算法对软件加密及对卡内存储器进行功能分区并采用各自的密钥进行加密的处理方法，详述IC十分区数据结构。这种IC卡及其系统非常适于相对封闭的单位和系统内部使用。

关键词: DES算法, IC卡, 电子存折, 身份认证, 借书证

Abstract: A kind or multifunction iC card and system designed specially by standard EEPROM card is introduced. The process methods are introduced briefly that the software is kept secret by DES algorithm,and memory partitioned for different functions also the partitions are kept secret by each secret key.'rhe data structure of IC card partition is elaborated.It applies to inside of relative close unit or system.

中图分类号: 

• TN915.05