본 논문에서는 로컬 또는 리모트에서 사용자가 서버 시스템에 접근하기 위해서 가장 먼저 거치게 되는 인증 절차 수행에 관련된 것으로 허가된 사용자의 접근만을 허용하고, 인증요청 메시지의 진위 여부를 확인시켜주는 기능과 사용자가 입력하는 중요 정보가 다른 사용자에게 유출되지 않도록 보장하는 기능을 추가한 신뢰성이 보장되는 인증방법을 소개한다. 본 논문에서는 역할기반의 접근제어 시스템을 커널 내부에 추가하고. 사용자인증에 비밀번호와 하드웨어 장치인 스마트카드를 사용함으로써 강화된 사용자 인증 시스템을 구현하였다.
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