Patent ID: 6144949
Filing Date: 2000-11-07
Classification: G06Q,H04L,H04W

Abstract:
A trunked radio frequency communication system including a trunked system infrastructure and a plurality of subscribers, each subscriber of the plurality of subscribers having an identification code, a public key and a private key,the trunked system infrastructure including an infrastructure memory and arranged for storing identification codes and public keys for various subscribers of the plurality of subscribers in the infrastructure memory,the trunked system infrastructure arranged for receiving a channel request from a requesting subscriber of the plurality of subscribers, thus forming a received channel request, the received channel request including the requesting subscriber's identification code, and for authenticating the received channel request by accessing the requesting subscriber's identification code from the received channel request, retrieving the requesting subscriber's public key from the infrastructure memory, thus forming a retrieved key, and decoding the received channel request with the retrieved key.