A Wireless-based Authentication and Anonymous Channels for GSM System

Abstract

For mobile roaming environment, the mobile uses visiting network’s services, the mobile station and the visiting network must authenticate each other. We propose a new authentication and anonymous channels protocol for roaming mobile communication. Our scheme can securely apply to GSM and CDPD wireless communication system, it’s not only supporting the mobile anonymity but also resolving the charging problem. The mobile station only takes one modular multiplication and one modular addition computation time when it roams in the visiting network.