Efficient Inter-Domain Authentication in Mobile Networks

• Main Authors: Ho, Fu-Shen, 何福軒
• Other Authors: Shiuh-Pyng Shieh
• Format: Others
• Language: zh-TW
• Published: 1997
• Online Access: http://ndltd.ncl.edu.tw/handle/06054226541563789316

碩士 === 國立交通大學 === 資訊及電子工程研究所 === 85 === Many existing inter-domain authentication protocols require their clients to communicate with every involved key distribution center (KDC) directly. This is inefficient and costly when the client side is a wireless mobile unit, for wireless transmission has relatively lower bandwidth and the mobile unit!is battery powered. In this thesis, we present an efficient inter-domain authentication protocol which minimizes the numbers of authentication messages and providing better security. Our protocol needsseven messages for inter-domain initial authentication regardless of the number of KDCs transited between the visited and home domains; four messages for subsequent authentication when the mobile user requests a different service provided by the visited domain; two messages while requesting the same service again. In this thesis, an enhanced version of BAN Logic is also proposed to prove the association of the shared key between the two communication parties. With the enhanced version of BAN Logic, it is proved that our protocol can achieve more goals of authentication than those required by original BAN Logic.