3G/PWLAN/WiBro 무선 네트워크 연동에 있어서 보안 기술이 통신 서비스의 고속화 시도 만큼이나 매우 중요한 사항으로 부각되고 있다. 그리고 무선 네트워크는 본질적으로 유선 네트워크에 비해 취약한 점이 많기 때문에 이종의 네트워크 연동을 실현함에 있어서 무선 네트워크의 편의성을 살리면서 연동 보안 문제를 해결해야 한다. 본 기고에서는 이러한 무선 네트워크에서의 연동 보안 기술에 대한 현 주소를 살펴보고 미래의 발전 방향에 대한 고려 사항 및 요구 사항을 정리하고, WCDMA, WiBro, PWLAN 등의 연동 통합 구조를 제시하고 제시된 여동 네트워크 상에서의 인증, 키 교환 및 데이터 암호화 등을 가능하게 하는 연동 보안 기술을 심도 있게 살펴 보고자 한다. 또한 본고에서는 3G/PWLAN/WiBro 무선 네트워크 연동에서 개별 네트워크는 최소 소정하면서 인증/과금/로밍 수단을 제공하는 새로운 방안을 제안하고 구현하여 보이고자 한다.
KSP Keywords
wireless system
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