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简要分析了4步握手协议的漏洞,指出4步握手协议在面对DOS攻击时是脆弱的,提出了2步握手协议的握手方法。该协议采用序列数代替4步握手协议中的随机数,将4步握手协议中4次信息交换减少为2次,提高了协议的安全性和效率,对2步握手协议的安全性进行了分析。对2步握手协议在快速切换中应用的安全性和性能进行了分析,并与4步握手协议性能进行比较,比较结果表明了该协议在性能和安全性方面都优于4步握手协议。
This paper briefly analyzes the loopholes in the 4-way handshake protocol and points out that the 4-way handshake protocol is vulnerable in the face of DOS attacks and proposes a handshake method for the 2-way handshake protocol. The protocol replaces the random numbers in the 4-way handshake protocol with sequence numbers and reduces the exchange of 4 messages in 4-way handshake protocol to 2 times, which improves the security and efficiency of the protocol and analyzes the security of the 2-way handshake protocol . The security and performance of the 2-way handshake protocol used in fast handoff are analyzed and compared with the performance of the 4-way handshake protocol. The comparison results show that the protocol is superior to the 4-way handshake protocol in terms of performance and security.