A Hierarchical Authentication for Proxy Mobile IPv6 Networks

ABSTRACT In this paper, a hierarchical authentication protocol is propos ed to minimize authentication delay in proxy mobile IPv6 networks. The authentication function of the AAA server is dist ributed to the LMAs and the MAGs. If the LMAs or the MAGs have authentication information of the MNs, they authentic ate the MN on behalf of the AAA servers. Therefore, the authentication delay is reduced. The AAA server is vulnerable t o denial-of-service attack. If the AAA server is down, MNs cannot access the proxy mobile IPv6 network until they are auth enticated. The proposed scheme reduces the load on the AAA server by distributing the authentication function to the LMAs and the MAGs.Keywords: PMIPv6, EAP-AKA, Authentication, Key agreement접수일(2013년 12월 11일), 수정일(2013년 12월 16일), 게재확정일(2013년 12월 16일)* 이 논문은 2013년도 정부(교육과학기술부)의 재원으로 한국연구재단의 기초연구사업 지원을 받아 수행된 것임(2012R1A1B3004161)* This research was supported by Basic Science Research Program through the National Research Foundation of Korea(NRF) funded by the Ministry of Education, Science and Tech-nology(2012R1A1B3004161)†주저자, theboy@emerald.yonsei.ac.kr‡교신저자, jssong@emerald.yonsei.ac.kr (Corresponding author)