METHOD OF GENERATING AND UPDATING TRAFFIC ENCRYPTION KEY, USED FOR ENCODING OF DATA TRANSMISSION AND RECEPTION IN WIRELESS COMMUNICATION SYSTEM

摘要

PURPOSE: A method of generating and updating traffic encryption key is provided to generate a traffic encryption key by generating an authentication key by using a parameter and a base station ID received from the base station.;CONSTITUTION: In a device, a parameter for generating the authentication key is received from a base station(S304). A message including a base identifier is received from the base station, and the authentication key is generated by using one or more parameters and the base identifier(S305). A nonce is received to generate a traffic encode key(S306). The traffic encode key is generated by using more than one among the nonce, the authentication key, a traffic encode key counter, and a security association identifier(S307).;COPYRIGHT KIPO 2010