The Implementation Of IPSec On The Security System Of E-card Platform On Campus

This paper introduces the implementation of the security system of the e-card platform on campus,it focus on using IPSec to realize the security of network layer.The security of e-card system on campus,reference to the representative security system,take the most popular technology of IPSec as the security method of data transformation on the network layer.The paper introduces the design and implement of the security system of e-card system on campus from theory to pratice.First,it introduce the architecture of the most typical kinds of security system,focus on IPSec.Then introduce the implements of security system of e-card system on campus,and how to use IPSec in this security system.This system take advantage of Linux's open source codes and HOOK mechanism of Netfilter firewall,and implement seamless conformity of TCP/IP and IPSec after hooking IPSec model with Linux system kernel by registered function-After that,we recompile the new system kernel and produce a truly safe kernel ,then we achieve a safe VPN gateway based on the IPSec.We make test and analysis on the performance of VPN gateway on the school network.