Research and improvement in the security of WEP protocol based on RC4 algorithm
Wang Pei-dong · Journal of Hefei University of Technology · 2012
Compared with the wired LAN,the wireless LAN has been applied more widely.Therefore,more attention should be paid on the security of wireless transmission.In this paper,the security problem of the WEP protocol is introduced,and an IV group allocation mechanism,in which the sender can make a conflict detection,is put forward to solve the IV conflict problem in the WEP protocol.For the detected conflict,a key updating mechanism is also put forward which can generate a group key by using a pseudo-random number generator.The new key will be used when the IV conflict occurs.The safety of the transmission can be ensured by the IV group allocation mechanism and the key updating mechanism.Finally the performance of the improved algorithm is analyzed.