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Internet缺乏安全性的主要原因之一是由于TCP/IP协议的数据流是明文传送的,信息很容易被监听、劫持和修改。保障网络传输安全性的有效方法是采用密码技术对网络上传送的数据进行加密,而且要保证密钥的安全。如何在通信双方产生并安全的传递密钥是一个重要的问题。这就需要采用一个安全的握手协议来解决。本文对数据加密技术和相关的网络技术进行了比较深入的学习,设计开发了对HTTP协议业务流进行透明安全保护的一个系统,并给出了系统的设计方案和具体实现的关键技术。
One of the main reasons for the lack of security in the Internet is that since the TCP / IP protocol data stream is transmitted in plain text, the information is easily intercepted, hijacked and modified. An effective way to guarantee the security of network transmission is to encrypt the data transmitted on the network by using the password technology, and to ensure the security of the key. It is an important issue how to transmit and pass the key securely on both sides of the communication. This requires a secure handshake protocol to solve. This article has carried on the thorough study to the data encryption technology and the related network technology, has designed and developed a system of transparent security protection to the HTTP protocol business flow, and has given the system design scheme and the key technology of concrete realization.