A review of cryptography as applied to computer networks.

摘要

This thesis is a survey about the network security between a sender and a receiver. We will address some of the possible network security problems and their solutions. The security problems can be classified as an internal attack or an external attack. The internal attack only involves the sender and the receiver, while the external attack involves a third party. In the first chapter, we will discuss the four security services and the related algorithms. In the second chapter, we will discuss the next generation of cryptography algorithms which may be implemented in the future.