Patent attributes
Embodiment mutual authentication and security agreement (MASA) protocols may use independently generated integrity and/or encryption keys to securely communicate private information exchanged between UEs and various network-side devices (e.g., base stations, MMEs, HSSs, etc.). In particular, embodiment MASA protocols may use an initial authentication request (IAR) encryption key (KIARENC) to encrypt UE specific information (e.g., an IMSI, etc.) in an IAR message and/or an initial authentication response (IAS) encryption key (KIASENC) to encrypt private information in an IAS message. Additionally, embodiment MASA protocols may use an IAR integrity protection key (KIARINT) to verify the integrity of information in an IAR message and/or an IAS integrity protection key (KIASINT) to verify the integrity of information in an IAS message. The KIARENC, KIARINT, KIASENC, and/or KIASINT may be independently computed by the UE and a home subscriber server (HSS).
