AUTHENTICATED KEY-EXCHANGE IN A MOBILE RADIO NETWORK

A new method is proposed in this study for implementation of secure di gital mobile communication systems. Two requirements for the systems m ust be considered, i.e., privacy and authentication. Privacy ensures t hat an eavesdropper cannot intercept conversations between two parties . Authentication ensures that service is not obtained fraudulently in order to avoid charge for usage. Additionally, a new key distribution scheme is designed for practical implementation in a low-cost and low- power digital mobile communication system.