무선 LAN에서 핸드오프시 PKI 방식을 이용한 실시간 상호 인증기법 설계

Abstract

There were many exposed problems in previous authentication method on LAN. Especially Open System Authentication Method, Shared Key Method, Mac Based Authentication Method are very hard to use in wireless network that needs security. So now, many researches have been performed about 802.1x and user authentication method applying PKI. But certificate verification protocol has been used abolished list called CRL since it's first usage of PKI, there were still has a problem about distribution point. In this paper, I applied CVS to use CA direct not to use CRL and OSCP server in order to improve this problems. Also I suggested the system that can make authentication steps more shorter using authentication server and interactive authentication system by public certificate(small size/low speed wireless terminal can access to wireless network fast and safely) , analyzed the performance using Opnet Simulator 11.0.