Journal of Korea Multimedia Society (한국멀티미디어학회논문지)

Korea Multimedia Society (한국멀티미디어학회)
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Fast and Secure 2-Way Handshake Mechanism using Sequence Number in Wireless LAN

순번을 이용한 고속의 안전한 무선 랜 2-Way 핸드쉐이크 기법

  • Published : 2009.09.30
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Abstract

In this paper, we analyze security weakness of 4-Way Handshake in IEEE 802.11i and propose fast and secure 2-Way Handshake mechanism. Compute PTK(Pairwise Transient Key) using sequence number instead of random numbers in order to protect Replay attack and DoS attack. Also, proposed 2-Way Handshake mechanism can mutual authenticate between mobile station and access point and derive PTK using modified Re-association Request and Re-association Response frames. And, compare with others which are fast and secure Handoff mechanisms.

본 논문은 IEEE 802.11i의 4-Way 핸드쉐이크의 취약점을 분석하고, 고속의 안전한 2-Way 핸드쉐이크 방식을 제안한다. PTK 생성에서 난수 대신에 순번(Sequence Number)을 사용하여, 재생공격, DoS 공격을 방지한다. 또한 Re-association Request 프레임과 Re-association Response 프레임을 변형하여 MS(Mobile Station)과 AP(Access Point) 사이의 상호 인증과, PTK(Pairwise Transient Key)의 도출을 가능하게 하여, 전송되는 메시지의 개수를 감소시켜, 4-Way 핸드쉐이크보다 고속의 핸드오프 방식을 제안한다. 그리고 고속의 안전한 핸드오프를 제안하는 기존의 기법들과 비교 분석한다.

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References

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