摘要： 软件狗是软件系统加密最常用的方法之一，该文在介绍美国Xicor公司生产的具有密码访问的X76F100芯片内、外部结构特点的基础上，重点论述了利用该芯片设计加密软件狗的优点和具体实现方法。

关键词: 加密, 读密码, 写密码, 密钥, 软件狗

Abstract: Software dog is one of the common methods of software system encryption. This paper introduces the inner and outer architecture characteristic of X76F100 chip produced by Xicor Corporation in America and emphatically discusses the merit and method of software dog by using this kind of chip.

中图分类号: 

• TP309