인터넷은 이미 일상생활에 깊게 자리 잡았다. 이러한 인터넷의 적용으로 실생활에서 수행하여야만 했던 많은 일들을 인터넷을 통해 수행할 수 있게 되었고, 인터넷의 편리함 때문에 인터넷 사용자 역시 크게 증가하였다. 그러나 인터넷 사용자의 증가와 더불어 인터넷을 통한 각종 침해사고 역시 크게 증가하였다. 침입자 역추적 기술은 여러 경유 시스템을 통해 우회 공격을 시도하는 해커의 실제 위치를 실시간으로 추적하는 기술이다. 따라서, 본 논문에서는 현재 인터넷 환경에 적용 가능한 워터마크 기법을 응용한 TCP 연결 역추적 시스템인 RTS 알고리즘을 제안한다. 그리고 제안된 역추적 알고리즘의 특징을 분석하여 역추적 구성 요소를 모델링하고, 네트워크 시뮬레이터 도구인 ns-2를 이용하여 모델링 된 역추적 구성 요소를 포함한 가상 네트워크 토폴로지 환경에서 모의 실험한 내용과 그 결과를 분석하였다.
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