Study On The Wi-Fi Protected Access And Its Application To EasyShare Project

WLAN is widely appreciated by any time, any where as your wish to access the Internet. The brought out of IGRS made each information device can be automatically discovering, intelligent interconnection, resources sharing and better interoperability, which greatly increased the application model of WLAN. EasyShare project as a simulated application of IGRS in 2008 Olympic games provides kinds of convenient and quick IGRS services through WLAN,that is audio explication service without media play address as well as transmit service of text and picture using the photos taking from locale.It is undoutable that security is very important to Olympic sports. However, the development speed of wireless security technology is much more slower than which is in the application area. Presently, serious security weakness has been found in widely used WEP protocol and can be attached by hacker easily. So it's very important to set a reliable wireless security solve method to protect Olympic scene for Easyshare project against attacking.IGRS and EasyShare project were firstly introduced, the basic knowledge of WLAN was specified, the principle of WEP and its major security weakness was analysised. WPA protocal was studied deeply and indicate how could the TKIP protocal solve all leaps in WEP, and the three protocals IEEE802.1x,EAP and RADIUS used in server authentication model were analysised as well as the relationship to each other.Then the main constructure of EasyShare and the design process of server procedure were introduced and a method to realise the WPA security protocal was proposed. This method uses the EAP-TLS authentication based on certificate, to provide both sides identification for user and server. Three types of certificate provided by certificate association perform unify assessing-control strategy Then, each function of the EasyShare project was designed and the specified process to realize audio explication service as well as transmit service was given.At last, a introduction about the lately IEEE802.11i and WAPI wireless security protocal was introduced.