Based On The Ieee 802.11 Series Of Standard Wireless Lan Security

With the further popularization of WLAN, the security of WLAN has been becoming a hot topic in the research field of computer networks. There are two ways to insure the security of WLAN, one is to improve the technology of Authentication, the other is to use the Encryption. In this article, we discuss the security of WLAN from the angle of enhancing the IEEE802.1x Authentication by combining with the technology of Radius Server and the Authentication of EAP-TLS to improve the security in WLAN.This article makes a further exploration on the security of WLAN by enhancing the security of IEEE802.1x protocol, basing on the summarization of the former researcher's hard work in this field. And it puts forward to a software solution on security authentication and key management of WLAN, including the functions of security authentication, key management and data protection, and it supports the clients to log in the networks by authentication, which effectively improves the security and reliability of data access in WLAN.First of all, this article makes the summarization and positioning of the research topic. Then it introduces the related knowledge of WLAN and the IEEE 802.11 protocol, which provides an important basis for our research of security in WLAN. Furthermore, it summarizes the former research on the security of WLAN, analyzes various of intimidations which lie in the mobile communication systems of WLAN, introduces the bugs and improvement of the major secure measures in WLAN and puts forward to the major solutions to solve the security in WLAN.Moreover, the emphasis of this article analyzes IEEE802.1x protocol and the authentication of EAP-TLS, mainly describes the protocol of EAP and TLS, which provide a further preparation of the model and software solutions in the later chapters. Then it summarizes the key management in WLAN, including the intention of key management and the styles of key, puts forward to the key management system of WLAN. And it also puts forward to the model of secure authentication system of WLAN, including the implementation of authenticator and STA, at the end of this article, we describe the future of security in WLAN, focusing on the IEEE802.11i protocol.