IP Library Granted Patent US 7,366,901
Granted Patent B2
US 7,366,901 · App. 10/632,665 · Granted Apr 29, 2008

Device, system, method and computer readable medium for identifying and authenticating a cellular device using a short-range radio address

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Quick Facts
Patent No.
US 7,366,901
App. No.
10/632,665
Granted
Apr 29, 2008
Kind
B2
Abstract

A device, method, system and computer readable medium allows for using a short-range address, such as a Bluetooth™ address, to identify a cellular device and authenticate cellular messages to the cellular device. In an embodiment of the present invention, a first short-range radio address for a cellular device is stored in a processing device, such as a server coupled to a cellular network. An authentication message is obtained by the processing device. A second short-range radio address is stored in the cellular device. A first message digest is calculated responsive to the authentication message and first short-range radio address. A cellular message, including the authentication message and the first message digest, is transmitted to the cellular device. The cellular device receives the cellular message and calculates a second message digest responsive to the authentication message and the second short-range radio address stored in the cellular device. The cellular device authenticates the cellular message responsive to comparing the first message digest to a second message digest. In an alternate embodiment of the present invention, a processing device compares a second digest message from a cellular device and a first digest message calculated by the processing device in order authenticate the cellular message. In still a further embodiment of the present invention, a short-range radio address is used to encrypt and decrypt cellular messages.

Claims (57)

1. A method comprising:

storing in a processing device a first short-range radio address associated with a short-range radio transceiver embedded in a cellular device, wherein the processing device manages authentication and identification of messages communicated to a cellular device from said processing device, independent from a communication protocol used to communicate the messages;

obtaining an authentication message using the processing device;

providing a second short-range radio address associated with said short-range radio transceiver to be stored in the cellular device, wherein the first short-range radio address and the second short-range radio address are the same;

calculating, using the processing device, a first message digest responsive to the authentication message and a first short-range radio address;

transmitting, over a cellular network coupled to the processing device, a cellular message comprising the authentication message and the first message digest;

wherein the cellular message is received by the cellular device;

calculating a second message digest responsive to the authentication message and the second short-range radio address; and,

wherein the cellular device compares the first message digest with a second message digest to authenticate the cellular message.

2. The method of claim 1 , wherein the authentication message is randomly calculated.

3. The method of claim 1 , wherein the first message digest is a 128-bit value calculated by a one-way hash software component.

4. The method of claim 3 , wherein the one-way hash software component is a MD5 software component.

5. The method of claim 1 , wherein the first and second short-range radio addresses each comprise a Bluetooth™ address.

6. The method of claim 1 , wherein the cellular device is in a short-distance wireless network.

7. The method of claim 6 , wherein the cellular device is in a short-distance wireless network.

8. The method of claim 6 , wherein the short-distance wireless network is an 802.11 wireless local area network.

9. The method of claim 1 , wherein the first and second short-range radio addresses are 48-bit values.

10. The method of claim 1 , wherein the cellular device is a cellular telephone.

11. The method of claim 1 , wherein the processing device is a server.

12. A method for authenticating a message communicated from a cellular device to a processing device using a short-range radio address, the method comprising:

storing a first short-range radio address, associated with a short-range radio transceiver embedded in a cellular device, in a processing device wherein the processing device manages authentication and identification of messages communicated to a cellular device from the processing device, independent from a communication protocol used to communicate the messages;

obtaining an authentication message in the processing device;

storing a second short-range radio address, associated with said short-range radio transceiver, in the cellular device, wherein the first short-range radio address and the second short-range radio address are the same;

calculating, by the processing device, a first message digest responsive to the authentication message and first short-range radio address;

transmitting, over a cellular network coupled to the processing device, a cellular message including the authentication message to the cellular device;

calculating a second message digest responsive to the authentication message and the second short-range radio address;

wherein the second message digest is transmitted by the cellular device; and,

comparing, by the processing device, the first message digest to a second message digest to authenticate the cellular message.

13. A universal method for encrypting and decrypting a cellular message communicated from a processing device to a cellular device using a short-range radio address associated with a short-range radio transceiver embedded in said cellular device, the method comprising:

storing a first short-range radio address associated with said short-range radio transceiver in the cellular device;

storing a second short-range radio address associated with said short-range radio transceiver in a processing device, wherein the first short-range radio address and the second short-range radio address are the same;

encrypting the cellular message, by the processing device, using the second short-range radio address;

transmitting, over a cellular network coupled to the processing device, the encrypted cellular message to the cellular device; and

decrypting the encrypted cellular message, by the cellular device, using the first short-range radio address.

14. A universal method for encrypting and decrypting a cellular message communicated from a cellular device to a processing device using a short-range radio address associated with a short-range radio transceiver embedded in said cellular device, the method comprising:

storing a first short-range radio address associated with said short-range radio transceiver in a cellular device;

storing a second short-range radio address associated with said short-range radio transceiver in a processing device, wherein the first short-range radio address and the second short-range address are the same;

encrypting the cellular message, by the cellular device, using the first short-range radio address;

transmitting, over a cellular network coupled to the cellular device, the encrypted cellular message to the processing device; and

decrypting the encrypted cellular message, by the processing device, using the second short-range radio address.

15. A universal method for identifying a cellular device comprising the steps of:

receiving, by the cellular device, a first message requesting a cellular device identifier;

reading, by the cellular device, a first short-range radio address associated with a short-range radio transceiver embedded in said cellular device;

transmitting, by the cellular device, over a cellular network coupled to the cellular device, a second cellular message including the first short-range radio address;

storing a second short-range radio address associated with said short-range radio transceiver in a processing device which is independent of communication protocol used to communicate the first and second cellular messages; and,

comparing the first short-range radio address to the second short-range radio address to uniquely identify the cellular device.

16. The method of claim 15 , wherein the first and second short-range radio addresses are Bluetooth™ addresses.

17. The method of claim 15 , wherein the cellular device is in a short-distance wireless network.

18. The method of claim 17 , wherein the short-distance wireless network is a Bluetooth™ wireless network.

19. The method of claim 15 , wherein the short-distance wireless network is an 802.11 wireless local area network.

20. The method of claim 15 , wherein the reading step includes executing a host controller command.

21. The method of claim 20 , wherein the host controller command is HCI_Read_BD_ADDR and the short-range radio address is BD_ADDR.

22. The method of claim 15 , wherein the first and second short-range radio addresses are 48-bit values.

23. The method of claim 15 , wherein the cellular device is a cellular telephone.

24. The method of claim 15 , further comprising the steps of receiving a third cellular message responsive to the second cellular message.

25. The method of claim 24 , wherein the first, second and third cellular messages are generated by a cellular network coupled to a processing device storing the second short-range radio address corresponding to the cellular device.

26. The method of claim 15 , wherein the first, second and third cellular messages are in a Global System for Mobile communications (“GSM”) protocol.

Assignments (4)
RELEASE OF SECURITY INTEREST Recorded Apr 17, 2012
From: SOUTHPOINT MASTER FUND LP
To: IXI MOBILE (R&D) LTD.
Reel/Frame 028055/0575 →
CHANGE NAME OF ASSIGNEE Recorded Nov 26, 2008
From: IXI MOBILE (ISRAEL) LTD.
To: IXI MOBILE (R & D) LTD.
Reel/Frame 021901/0737 →
SECURITY AGREEMENT Recorded Jun 29, 2006
From: IXI MOBILE (R&D) LTD.
To: SOUTHPOINT MASTER FUND LP
Reel/Frame 017846/0872 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 3, 2004
From: HAPARNAS, ZIV; SHACHAK, AMIT
To: IXI MOBILE (ISRAEL) LTD.
Reel/Frame 015792/0255 →