대리서명은 원서명자가 대리인에게 서명 권한을 위임하여 대신 서명하게 하는 변형된 전자서명이다. 본 논문에서는 bilinear 함수를 이용한 ID 기반 인증 모델에서의 대리서명 기법을 제안한다. 기존에 제안된 ID 기반 인증 모델에서의 대리서명 기법은 대리인에 의한 오남용을 막을 수 없고, ID 기반 인증 모델에서의 대리서명임에도 불구하고 공개키 인증서가 필요하다[1]. 하지만 우리가 제한하는 기법은 대리인의 서명권한을 규정한 위임장을 대리서명에 삽입함으로서 대리인에 의한 서명 권한의 오남용을 막을 수 있을 뿐만 아니라 공개키 인증서도 필요 없다. 효율성 측면에서, 제안하는 대리서명 기법은 서명 권한 위임 시 보안채널 설정의 필요성을 제거함으로써 기존의 대리서명보다 효율성을 훨씬 개선 할 수 있으며, ID 기반 인증모델에서의 공개키 습득과정의 단순화를 통한 효율성 향상이 가능하다.
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J. Kim et. al, "Trends in Lightweight Kernel for Many core Based High-Performance Computing", Electronics and Telecommunications Trends. Vol. 32, No. 4, 2017, KOGL Type 4: Source Indication + Commercial Use Prohibition + Change Prohibition
J. Sim et.al, “the Fourth Industrial Revolution and ICT – IDX Strategy for leading the Fourth Industrial Revolution”, ETRI Insight, 2017, KOGL Type 4: Source Indication + Commercial Use Prohibition + Change Prohibition
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