Patent ID: 7079656

Claim:
A method for encryption of information for a radio transmission and authentication of subscribers in a communication system that comprises an access network having equipment for said radio transmission, said communication system comprising a core network having a respective authentication equipment for said subscriber authentication, comprising: allocating a radio channel for said transmission of said information via a radio interface from/to a base station of said access network; mutually transmitting public keys between a mobile station and said base station via said radio interface; encrypting subsequent information to be transmitted via said radio interface using one of said public keys received by said base station or said mobile station; deciphering encrypted information received by said mobile station or said base station on the basis of a private key that is allocated to said transmitted, public key in said mobile station or in said base station; and authenticating said core network via a subscriber identity mobile card of said mobile station, and authenticating said subscribers via said authentication equipment of said core network on the basis of encrypted information that have been mutually sent.