IPv6 유무선 로컬 네트워크에서 이웃하는 호스트와 라우터를 발견하기 위한 목적으로 ND (Neighbor Discovery) 프로토콜이 제안되었다. 그러나 ND 프로토콜은 악의 있는 사용자가 프로토콜 메시지를 위조하여 정상적인 호스트나 라우터로 위장하는 것이 가능하기 때문에 네트워크 공격에 취약한 문제를 가지고 있다. ND 프로토콜을 보호하기 위한 목적으로 SEND (SEcure Neighbor Discovery) 프로토콜이 제안되었다. SEND 프로토콜은 주소 소유권 증명, 메시지 보호, 재현 공격 방지, 그리고 라우터 인증 메커니즘을 제공한다. 본 논문에서는 IPv6 네트워크상에서 핵심적으로 운용될 프로토콜중의 하나인 SEND 프로토콜을 설계 및 구현하다. 또한 본 논문에서 구현한 SEND 프로토콜을 IPv6 네트워크상에서 실험함으로써 SEND 프로토콜의 공격 방어 능력과 프로토콜의 성능을 평가하고 분석한다.
KSP Keywords
Secure neighbor discovery
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