The authors make an introduction to the safety techniques used normally on web service: synchronous private key encryption and asymmetrical private key encryption, and discuss the safety mechanism of SSL protocol and its application on web.

• 介绍了Web服务常用的安全技术:对称密钥加密系统和非对称密钥加密系统。 论述了SSL安全协议的安全机制和它在Web上的应用。