网络层与应用层的一些安全策略

Several security policy on layer of network and application

主要阐述了Internet上的信息安全策略 ,其内容包括公开密钥机制及其在保证信息安全中的作用 ;网络层的工作方式、IP欺骗技术对网络层安全的威胁以及应对策略 ;

This paper mainly exoatiates on Internet security policy.It includes the public key mechanism and its role in information security;working manner in network layer,the threat to security of network layer from IP packet cheating;working manner in application layer and how to guarantee the identity of sender and receiver in e-mail using figure signature.