모든 사물에 고유 식별 정보(Unique Product Identifier)가 부착되어 사물의 개별 관리 및 컴퓨팅 환경을 구성하는 RFID(전자식별) 기술이 다양한 응용 및 구현 기술을 위해 활발하게 연구되고 있다. 하지만 수동형 태그 기반 RFID 시스템은 태그 자체의 자원 제약성 때문에 인가되지 않은 사용자에 의한 악의적인 태그 점보 노출이 용이하고, 그 결과 개인의 프라이버시 및 정보의 기밀성이 위협받게 된다. 비록 이를 예방하기 위해 다양한 보호 기법이 제안 되고 있지만 수동형 태그에 적용하기 힘들거나(예: Hash 기반 메카니즘) 보안에 취약하다. 따라서 본 논문에서는 태그 코드 암호화와 리더 인증 관리를 통해서 수동형 태그에 적합하고 프라이버시 보호 및 기밀성을 제공할 수 있는 메카니즘을 제안하고자 한다.
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