AAA(Authentication, Authorization, and Accounting) 정보보호 기술은 유/무선 인터넷, 휴대인터넷, Mobile IP, VoIP 등 다양한 서비스 접속을 위한 인증/권한 검증/과금 기능을 제공하기 위한 기술이다. 현재 IETF 표준화 기구에서는 AAA에 관련된 표준을 제정하고 있다. IETF AAA 작업그룹에서 Diameter 기반 프로토콜에 대한 표준화를 진행하고 있으며, 지속적인 표준화 작업을 통하여 RFC 표준 6개와 인터넷 드래프트 6개가 진행중이다. 본 고에서는 이러한 Diameter 기반 AAA 정보보호 기술에 대해 현재까지의 표준화 진행 상태 및 표준화 방향을 IETF AAA 작업그룹 중심으로 살펴본다.
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