Abstract
본 논문은 새로운 광학적 일회용 패턴암호 상호 인증 방법을 제안한다. 이 방법은 2-단계 위상천이 디지털 홀로그래피 기법을 사용하여 이중 인증을 제공하고, 광학적 일회용 패턴암호를 상호 양방향으로 시도-응답 악수 기법을 구현하여 양방향 인증을 수행한다. 클라이언트와 서버는 상호 인증시 일회용 패턴암호를 무작위 수로 선택하여 오직 한번만 사용하고 이를 암호화하여 전송하기 때문에, 되풀이 공격이나 중간자 공격과 같은 암호공격으로부터 암호시스템을 보호하고 보안수준을 한층 더 높일 수 있다. A new optical one-time pattern password(OTPT) mutual authentication method is proposed, which presents a two-factor authentication by 2-step phase-shifting digital holography and performs a two-way authentication by a challenge-response handshake of the optical OTPT in both directions. Because a client and a server use OTPT once as a random number and encrypt it for mutual authentication, it protects against a replay or a man-in-the middle attack and results in higher security level.
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