무선랜이 폭발적으로 증가함에 따라, 기술 발전에 힘입은 네트워크 품질은 많이 향상되었지만, 보안 품질은 아직도 요원한 상황이다. 본고에서는 무선랜상에서 아이디 보안 취약성을 이용한 공격들과 이를 탐지하고 방어할 수 있는 디바이스 식별 기술에 대한 동향을 파악한다. 무선랜상에서 아이디 보안 취약성을 이용하는 MAC 속임 공격은 공격자의 존재를 속일 수 있을 뿐만 아니라, 네트워크 및 시스템 권한을 획득할 수 있기 때문에 네트워크 보안에 큰 위협이 되고 있다. 무선 디바이스 식별 기술로서는 인증 방식, 프로토콜 분석 방식, 위치확인 방식, RF 지문 방식 등 많은 기법들이 있다. 본고에서는 이러한 기술들 중에서 현재 가장 활발하게 연구되고 있는 RF 지문 기술을 시스템 구조, 디바이스 식별 방법, 보안 취약성, 그리고 보안 응용 관점에서 자세히 분석한다.
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