무선 통신 시스템에서 이동 사용자들의 안전성 문제에 대한 논쟁은 끊임없이 이루어지고 있으며 무선 네트워크 환경에서 더 안전한 통신을 위한 연구들이 계속 진행되고 있다. 무선 네트워크 환경에서는 전달하고자 하는 메시지들이 공중파를 매체로 하여 전송되기 때문에 유선 네트워크 시스템에서보다 안전성의 문제가 더욱 철저히 고려되어야 한다. 본 논문에서는 무선 이동 네트워크 환경에서 인증서를 기반으로 한 안전한 통신 프로토콜을 제안하고자 한다. 특히 이동 사용자들이 각기 다른 도메인으로부터 서비스를 받고 있는 환경에서 종단간에 위치한 이동 사용자들이 다근 사용자와 외부 도메인으로부터 익명성을 보장받으며 서로를 인증하고 안전하게 통신을 위한 비밀키를 공유찬 수 있는 프로토콜을 제안한다.
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