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随着网络数据开放性,共享性的不断扩大,人们越来越重视网络传输的安全问题,针对这一问题,本文首先对IPSec协议族进行了研究,介绍了IPSec安全机制及应用,分析了认证头协议、封装安全载荷协议的结构及其关键技术。在此基础上提出了一种基于IPSec协议的安全网卡的设计模型,并阐述了此安全网卡的工作原理。
With the openness and sharing of network data, people pay more and more attention to the security of network transmission. In response to this problem, this paper first studies the IPSec protocol family, introduces the security mechanism and application of IPSec, analyzes the authentication Header protocol, the structure of encapsulated secure payload protocol and its key technologies. Based on this, a design model of security NIC based on IPSec protocol is proposed, and the working principle of this security NIC is expounded.