An Enhanced Key Generation and Roaming Security for Wireless LANs

• Main Authors: REAY-LIN CHANG, 張瑞麟
• Other Authors: YEN-CHIEH OUYANG
• Format: Others
• Language: en_US
• Published: 2003
• Online Access: http://ndltd.ncl.edu.tw/handle/25768983676244007979

碩士 === 國立中興大學 === 電機工程學系 === 91 === The 802.1X and 802.11i were proposed to resolve some problems in 802.11. However, the 802.1x still has some drawbacks and could be hijacked through middle of communication session. The main problems in the wireless LANs security standards are the key distribution and mutual authentication between the supplicant and the access point (AP)[1][2]. The same character of all personal digital devices is mobility. 802.11f draft provides IAPP for used by roaming. In this thesis, we propose a secure channel for regular communication and roaming security and a security key exchange scheme, one time session key generation protocol (OTSKGP) to avoid being hijacked. The prime purpose is to create a secure channel between supplicant and AP. The supplicant and AP compute their session key individually. This scheme includes three phases and all the steps of the phases are protected by public-key encryption. Therefore no information can be hijacked between supplicant and server or between AP and server. Besides, we propose a new secure roaming which is using the OTSKGP.