인터넷의 발전과 더불어 네트워크 상에서의 침입 시도가 갈수록 증가되고 다변화됨으로써, 이에 대한 대응으로 많은 침입탐지시스템들이 개발되었다. 그러나, 현재의 대다수 침입탐지시스템들은 갈수록 증가하는 트래픽양을 처리하는 데 어려움이 있다. 즉, 기가비트 이더넷 환경과 같은 고속 네트워크 환경이 현실화되고 있고, 이를 바탕으로 한 대용량의 데이터를 처리할 수 있는 보안 분석 기법들에 대한 필요성이 대두되고 있다. 따라서, 본 논문에서는 고속 네트워크 환경에 적합한 하드웨어 기반의 고성능 침입탐지 기술에 대해서 설명한다. 이는 대용량의 트래픽 데이터들을 실시간으로 분석하기 위한 기술로써, 점점 고속화되고 대용량화되어 가는 대규모 네트워크 환경에서의 다양한 침입을 보다 빠르고 정확하게 탐지하고 대응하기 위한 기반을 제공한다.
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