PROCEDE DE DISTRIBUTION D’UNE CLEF NUMERIQUE DE CHIFFREMENT VERS DES TERMINAUX DE TELECOMMUNICATION

摘要

The method involves receiving a data message from a terminal (TS), where the data message includes an address of the terminal. An identification of the terminal is performed by comparison of the address of the terminal to establish a membership of the terminals. A key is selected when the terminal belongs to an assembly (ENSS) of the terminals. The key is processed by a data server (SERV) by utilizing a specific function. The key or another key is transmitted according to the membership of the terminals. Independent claims are also included for the following: (1) a method for coding of data (2) a method for deciphering of data (3) a base station.