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针对网络层安全隐患,IETF提出了IPSec安全规范。本文论述了IPSec体系结构和它的几种工作方式以及现方法,分析了它提供安全服务的原理与机制。
For the network layer security risks, IETF proposed IPSec security specifications. This article discusses the IPSec architecture and several of its working methods as well as current approaches, and analyzes the principles and mechanisms for providing secure services.