무선 네트워크 연동을 위한 키 관리
Key Management for Wireless Interworking
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초록
3G 이동통신, 무선랜은 각기 다른 장단점을 가지고 무선 통신 서비스를 제공하고 있다. 현재 이들 서비스의 단점들을 보완하도록 설계한 WiBro 서비스가 개발되었으며, 3중-모드로 작동하는 단말기를 이용하는 사용자가 세 개 망을 편리하게 사용할 수 있도록 하기 위한 3G- WLAN-WiBro 연동 시스템이 제안되었다. 각 망은 보안과 과금을 위하여 사용자와 네트워크 간의 상호 인증 절차를 도입하고 있으나, 서로 다른 인증 프로토콜을 사용하고 있다. 본 논문에서는 3G-WLAN-WiBro 연동 네트워크상에서, 사용자가 동일 사업자의 이종 망으로 이동할 때 이전망에서 사용하던 인증 정보를 활용하면서 새로운 망으로 안전하게 로밍할 수 있도록 지원하기 위한 통합된 인증 및 키 관리 프로토콜을 제안하였다.
Abstract
3G telecommunication and wireless LAN provide various wireless communication services with their own native advantages and disadvantages. Currently WiBro service was developed to make up for the disadvantages of those services, and 3G-WLAN-WiBro underworking system which enables a user who uses triple-mode terminals to use those three networks was proposed. Even though each network adopts mutual authentication process between users and networks to provide security and accounting, they use different authentication protocols. In this paper, integrated authentication and key management protocol is proposed which makes use of previously used authentication information and supports safe roaming when a user moves from one network to another one under a same service provider on the 3G-WLAN-WiBro interworking network.
참고문헌 (17)
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