Method and system to protect clear text transmission of user identity in wireless networks

A method to protect clear text transmission of user identity in wireless networks comprising one or more 3GPP network nodes, the method comprising:

• generating, a virtual Subscription permanent identifier corresponding to a received Subscription permanent identifier (SUPI), wherein the virtual Subscription permanent identifier is generated by a Unified Data Management (UDM) in a home network (HN);
• mapping, the virtual Subscription permanent identifier with the received Subscription permanent identifier (SUPI);
• and
• generating and sending, an authentication vector (AV) to a server network (SN), wherein the authentication vector (AV) is sent as a response message comprising the virtual Subscription permanent identifier, and wherein the server network (SN) generates a globally unique temporary identifier (GUTI), wherein the virtual Subscription permanent identifier (SUPI) is accessed upon intercepting the home network (HN) and the server network (SN) and wherein the Subscription permanent identifier (SUPI) of the user is unrevealed during the intercepting.

A telecommunication node to protect clear text transmission of user identity in 3GPP wireless network, the node comprising:

• a transceiver;
• a processor coupled to the transceiver and configured to:
• generate, a virtual Subscription permanent identifier corresponding to a received Subscription permanent identifier (SUPI), wherein the virtual Subscription permanent identifier is generated by a Unified Data Management (UDM) at a home network (HN);
• map, the virtual Subscription permanent identifier with the received Subscription permanent identifier (SUPI);
• and
• generate and send, an authentication vector (AV) to a server network (SN), wherein the authentication vector (AV) is sent as a response message, wherein the response message comprises the virtual Subscription permanent identifier, and wherein the server network (SN) generates a globally unique temporary identifier (GUTI), wherein the generation of the virtual Subscription permanent identifier (SUPI) facilitates communication between the home network (HN) and the server network (SN) in accordance with a 5G AKA protocol.