Secondary device authentication proxied from authenticated primary device

Patent metadata

Field	Value
Publication number	US-11910194-B2
Application number	US-202218086606-A
Country	US
Kind code	B2
Filing date	Dec 21, 2022
Priority date	Mar 25, 2019
Publication date	Feb 20, 2024
Grant date	Feb 20, 2024

Abstract

A method of authenticating a secondary communication device based on authentication of a primary mobile communication device is disclosed. Trust is established with the primary mobile communication device by a device authentication server (DAS). The DAS receives an authorization code request from a secondary application operating on the secondary communication device, and transmits an authorization code to the secondary communication device. The DAS receives the authorization code from a primary application operating on the primary mobile communication device. The DAS authorizes the secondary application based on the trust with the primary mobile communication device and the authorization code from the primary application. The DAS transmits a secondary token to the secondary application at the secondary communication device to allow initialization of a communication session from the secondary application on behalf of the primary mobile communication device.

First claim

What is claimed is:

1. A primary mobile communication device, comprising:
a processor;
a camera;
a transceiver;
a non-transitory memory, wherein the non-transitory memory stores a primary token indicating trust established between the primary mobile communication device and a device authentication server (DAS); and
a primary application stored in the non-transitory memory that, when executed by the processor:
activates the camera to scan a Quick Response (QR) code from a secondary application at a secondary communication device; and
transmits, via the transceiver, the QR code and the primary token to the DAS to indicate a physical nexus between the primary mobile communication device and the secondary communication device and to request extending the trust to include the secondary application at the secondary communication device on behalf of the primary mobile communication device.

2. The primary mobile communication device of claim 1 , wherein the primary application, when executed by the processor, further:
receives a secondary device name for the secondary communication device as input after scanning the QR code; and
transmits the secondary device name to the DAS along with the QR code and the primary token.

3. The primary mobile communication device of claim 2 , further comprising a display, wherein the primary application, when executed by the processor, further:
receives, via the transceiver, an application association list for the primary application from the DAS, the application association list indicating the secondary communication device is associated with the primary mobile communication device; and
displays, via the display, an indication that the secondary communication device is associated with the primary mobile communication device.

4. The primary mobile communication device of claim 3 , wherein the application association list is created by the DAS in response to authenticating the primary token.

5. The primary mobile communication device of claim 1 , wherein the primary token stored in non-transitory memory includes a mobile directory number (MDN) of the primary mobile communication device, a device serial number of the primary mobile communication device, a timestamp, a primary flag set to true, and a label.

6. The primary mobile communication device of claim 1 , wherein trust is established with the DAS by mobile access gateway (MAG) authentication, International Mobile Subscriber Identity (IMSI) encryption challenge, or self-identified IMSI.

7. The primary mobile communication device of claim 1 , wherein the primary token provides the primary application access to a particular user's account associated with the primary mobile communication device.

8. The primary mobile communication device of claim 1 , wherein the primary token comprises a specified time to live.

9. The primary mobile communication device of claim 8 , wherein trust is reestablished between the primary mobile communication device and the DAS in response to the specified time to live expiring.

10. The primary mobile communication device of claim 1 , wherein once trust is extended, the secondary application of the secondary communication device initiates a communication session with a network on behalf of the primary mobile communication device based on a secondary token.

11. A method, comprising:
storing, in a non-transitory memory of a primary mobile communication device, a primary token indicating trust established between the primary mobile communication device and a device authentication server (DAS);
activating, by a primary application stored in the non-transitory memory and executed by a processor of the primary mobile communication device, a camera of the primary mobile communication device to scan a Quick Response (QR) code from a secondary application at a secondary communication device; and
transmitting, by the primary application via a transceiver of the primary mobile communication device, the QR code and the primary token to the DAS to indicate a physical nexus between the primary mobile communication device and the secondary communication device and to request extending the trust to include the secondary application at the secondary communication device on behalf of the primary mobile communication device.

12. The method of claim 11 , further comprising:
receiving, by the primary application, a secondary device name for the secondary communication device as input after scanning the QR code; and
transmitting, by the primary application, the secondary device name to the DAS along with the QR code and the primary token.

13. The method of claim 12 , further comprising:
receiving, by the primary application via the transceiver, an application association list for the primary application from the DAS, the application association list indicating the secondary communication device is associated with the primary mobile communication device; and
displaying, by the primary application via a display of the primary mobile communication device, an indication that the secondary communication device is associated with the primary mobile communication device.

14. The method of claim 13 , wherein the application association list is created by the DAS in response to authenticating the primary token.

15. The method of claim 11 , wherein the primary token stored in non-transitory memory includes a mobile directory number (MDN) of the primary mobile communication device, a device serial number of the primary mobile communication device, a timestamp, a primary flag set to true, and a label.

16. The method of claim 11 , wherein trust is established with the DAS by mobile access gateway (MAG) authentication, International Mobile Subscriber Identity (IMSI) encryption challenge, or self-identified IMSI.

17. The method of claim 11 , wherein the primary token provides the primary application access to a particular user's account associated with the primary mobile communication device.

18. The method of claim 11 , wherein the primary token comprises a specified time to live.

19. The method of claim 18 , wherein trust is reestablished between the primary mobile communication device and the DAS in response to the specified time to live expiring.

20. The method of claim 11 , wherein once trust is extended, the secondary application of the secondary communication device initiates a communication session with a network on behalf of the primary mobile communication device based on a secondary token.

Assignees

• T Mobile Innovations Llc

Inventors

• Hohler Ricky A
• Katzer Robin D
• Kota Deepthi
• Mauer Brian D

Classifications

• H04W12/084 Primary

  using delegated authorisation, e.g. open authorisation [OAuth] protocol · CPC title

• H04L63/0884

  by delegation of authentication, e.g. a proxy authenticates an entity to be authenticated on behalf of this entity vis-à-vis an authentication entity · CPC title

• H04W12/06

  Authentication · CPC title

• H04L63/0807 Primary

  using tickets, e.g. Kerberos (cryptographic mechanisms or cryptographic arrangements for entity authentication using tickets or tokens H04L9/3213) · CPC title

• H04W12/03

  Protecting confidentiality, e.g. by encryption · CPC title