Analyzing and Researching the Key Exchange Protocol: JFK

Just fast keying(JFK) is a new key exchange protocol.Many researchers pay attention to it.In this paper,BAN logic is used to prove security objectives of JFK protocol.After the brief introduction about two variants of the protocol and the mechanism of JFK protocol,security objectives are pointed out.Then the notations and rules of BAN logical method are explained also on analysis and proving are done for JFKr which is one kind of JFK by BAN logical method.In conclusion,JFKr satisfies the basal security demands of key exchange protocol.