FTP服务的安全缺陷和解决方法

The Flaw of Security and Its Solution to FTP Service

阐述了ＦＴＰ服务器服务的安全缺陷，介绍了三种著名ＦＴＰ服务攻击方法，提出了解决措施，并设计了一种较易实现的结合数字授权、数字验证、数字签名机制的ＦＴＰ服务系统．

The flaw of security in the file protocal service and three common attacking methods are described, for which, the corresponding solution is presented in this paper, where an FTP service is designed that has digital authentication, authorization and DSS,and can be easily implemented as well.