CAJ | 학술논문

基于4-步握手协议在DOS攻击和握手消息丢失问题等方面的缺陷，本文提出2-步握手协议。这两类协议都是通过一个会话密匙来保护握手消息，同时，在移动站点(MS)和接入点(AP)进行密匙确认，并最后使得MS和AP相互认证，但在2-步握手协议中使用序列数来代替4-步握手协议中的随机数，提高了握手的安全性和效率。本文主要对2-步握手在安全性方面的优势进行了分析，并将其应用于WLAN快速切换机制中。与4-步握手协议相比，2-步握手协议明显缩短了切换延时，因此，其在微信语音聊天、视频业务等领域有广阔的应用前景。
기우4-보악수협의재DOS공격화악수소식주실문제등방면적결함，본문제출2-보악수협의。저량류협의도시통과일개회화밀시래보호악수소식，동시，재이동참점(MS)화접입점(AP)진행밀시학인，병최후사득MS화AP상호인증，단재2-보악수협의중사용서렬수래대체4-보악수협의중적수궤수，제고료악수적안전성화효솔。본문주요대2-보악수재안전성방면적우세진행료분석，병장기응용우WLAN쾌속절환궤제중。여4-보악수협의상비，2-보악수협의명현축단료절환연시，인차，기재미신어음료천、시빈업무등영역유엄활적응용전경。
Based on that the 4-way Handshake protocol in IEEE802.11 is not robust in DoS(Denial of Service) and the handshake messages loss problems, a 2-way handshake protocol is proposed in this paper. Both protocols are used session key to protect the handshake messages,also can provide key confirmation and mutual authentication be-tween a mobile station and access point at the same time. A sequence number is used instead of the random numbers in the 4-way handshake protocol to derive the session key, improve the security and efficiency of handshake. In this paper, in terms of analysis the safety 2-way handshake , and apply it to WLAN fast handover mechanisms. Com-pared with 4-way handshake protocol , the handover latency time in the 2-way handshake protocol is shorten signif-icantly, so its application is very broad in the voice chat of micro-letter , video services and other fields.