浅谈Visual FoxPro数据库系统的加密技术

A Brief talk on the Technique of Encrypting the Visual FoxPro Database System

对于Visual FoxPro数据库系统的底层表分别从主存储器和辅助存储器进行加密以确保数据本身的安全性,在单机应用系统中对用户密码运用加密的转换密钥和随机伪码进行加密,在分布式应用系统中采用了HWANG,CHEN与LAIH的算法对用户权限进行控制。

Based on safety problem in the VFP software development,this paper puts forward the algorithm of encrypting and decrypting.It also proposes the algorithm of customers legal power control in single machine system and the distribute application systems.