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

1 . 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 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.

2 . The method to protect clear text transmission of user identity in wireless networks as recited in claim 1 , wherein the Subscription permanent identifier (SUPI) is generated at the Home Network (HN) by:

receiving, a registration request at the Home Network (HN) to start an authentication process of a User Equipment (UE), wherein the server network (SN) sends the registration request to the home network (HN) for the authentication process;

receiving ( 104 ), a subscription concealed identifier (SUCI) at the home network (HN), wherein the subscription concealed identifier (SUCI) comprises an encrypted part and a clear text, wherein the encrypted part of the subscription concealed identifier (SUCI) generated by the User Equipment (UE) identifies subscription of the home network (HN); and

generating, a Subscription permanent identifier (SUPI) and a privacy key, wherein the privacy key comprises a public key of the home network of the User Equipment (UE); wherein the privacy key comprises an identifier of the home network (HN), wherein the Subscription permanent identifier (SUPI) is generated based on decrypting from the subscription concealed identifier (SUCI), wherein the Subscription permanent identifier (SUPI) is in one or more formats.

3 . The method to protect clear text transmission of user identity in wireless networks as recited in claim 2 , wherein the one or more formats of the Subscription permanent identifier (SUPI) are International Mobile Subscriber Identifiers (IMSI).

4 . The method to protect clear text transmission of user identity in wireless networks as recited in claim 1 , wherein the mapping information is stored in the UDM.

5 . The method to protect clear text transmission of user identity in wireless networks as recited in claim 1 , wherein the virtual Subscription permanent identifier (SUPI) generated at the UDM is in a clear text form.

6 . The method to protect clear text transmission of user identity in wireless networks as recited in claim 1 , wherein the home network (HN) consists of a mobile country code (MCC) and a mobile network code (MNC) and wherein the subscription permanent identifier is a mobile subscription identifier (MSIN).

7 . The method to protect clear text transmission of user identity in wireless networks as recited in claim 1 , wherein a successful match between the virtual Subscription permanent identifier (SUPI) and the Subscription permanent identifier (SUPI) at the UDM causes tracking and monitoring of the user.

8 . 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.

9 . 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.