Application Research Of IPSec In The Wireless Network For Banking System

Nowadays,the competition of the commercial banks in china turns more and more intensely.The Services of the bank also require the application of radio network.But the security issues of the radio network hold back the application of radio network in the field of Finance widely.While IPSec protocol is a good way to dispose the security of IP date's transferring. This paper discussed using the Internet Security protocol to construct a virtual private network instead of physical segregation. And how to design and construct a high throughout, more stability and secure VPN system is the goal of this design.This paper aims at further research on Virtual Private Network (VPN), a currently popular information security technique based on the IP Security protocol architecture (IPSec), and it's implementation. Firstly, this paper gave briefly introduction about VPN technology including development background, application field and some key technologies. Secondly, researched system on IPSec system structure, focused on AH/ESP protocol, including their format and position, gave their transact method, and, analyzed key-exchange, security association database and security policy database.At last, in this article,the existing application situations of the radio network in the field of Finance are observed and analyzed.Following these analysis,we can find out there are two major problems that banks focus on.One is radio network authentication,and the other is data secrety and entirety.Considering the traditional cable network which launched a long cycle, poor flexibility, high costs of communication, not easy to manage and maintain the line. This paper implement the bank's wireless network platform based on IPSec VPN by Unicom's CDMA 2000 wireless network, which makes ATM, mobile computer can be convenient, secure and stable wireless access bank networks, and ensure that the transmission of data confidentiality, availability, and integrity.