Umts Access Security Research And Improvement

The development of mobile communication play a significant role on the future of wireless communication.Otherwise The 3rd mobile communication system is confronting a serious security threaten for the nature flaw of wireless access and high risk of mobile.The advanced network architecture,which supporting high access rating,and the complicated network framework,which guaranteeing users to access the network at any time in any place,both will increase the amount and the intensity of attack.In UMTS network,users can achieve many new services through their mobile stations.The network access security is the base of the services.This article first intruduce the current security situation of mobile communication network,point out that the air interface between the user equipment and UMTS radio access network is the weak point of security chain and is tended to be attacked. This article then describles the tool for analysing access security protocol,BAN logic,introduces the running process of the protocol,analyse the protocol by means of BAN logic,then table the scheme for the flaw detected.At last based on the test regulation,testing the commercial system.