Patent ID: 8379854
Filing Date: 2013-02-19
Classification: H04L,H04W

Abstract:
1. A method performed by mobile equipment to authenticate communication with a network, the method comprising: receiving, at the mobile equipment, authentication information from a network; obtaining, at the mobile equipment, a first random number from the received authentication information, the first random number being a random number that the mobile equipment had sent the network; generating, at the mobile equipment, at least one mobile equipment key based on the first random number using cellular authentication and voice encryption; obtaining, at the mobile equipment, a second random number from the received authentication information, the second random number being associated with the network; generating, at the mobile equipment, at least one network key from the second random number using the cellular authentication and voice encryption; generating, at the mobile equipment, an authentication key that includes hashing together the mobile equipment key and the network key; generating, at the mobile equipment, an expected network message authentication code based on the authentication key and at least a portion of the received authentication information according to authentication and key agreement security protocol; and authenticating the network based on the expected network message authentication code.