Abstract

802.11 access point discovery protocol possesses a common privacy problem. The client needs to send continuous active probe for making a connection with its intended network. This active probe helps the attacker to gain knowledge of favoured network list of the client. Again the client has to send continuous probe to perform the handoff efficiently; a listener can easily capture probe and disclose its favoured network identifiers known as SSIDs which may contain some sensitive information. This problem has been solved partially by some privacy preserving techniques with the help of hidden SSIDs, passive scanning, using undirected active probe and so on. But, these solutions confine to only access point discovery and use open authentication for association .In our research we have proposed a protocol for protecting privacy while implementing strong authentication of network users by RADIUS.