METHOD FOR MOBILE TELECOMMUNICATION SECURITY IN A MOBILE COMMUNICATION NETWORK AND THEREFOR DEVICE

• US 20090017863A1
• Filed: 08/25/2006
• Published: 01/15/2009
• Est. Priority Date: 08/26/2005
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd. (Samsung Group)
• Original Assignee: Samsung Electronics Co. Ltd. (Samsung Group)
• Inventors: Chin, Chen-Ho, Rowley, Mark
• Granted Patent: US 7,991,387 B2
• Time in Patent Office: Days
• US Class Current: 455/550.100
• CPC Class Codes: H04L 2209/80 Wireless network architectures or network communication protocols for wireless network security H04W12/00
• CPC Class Codes: H04L 63/123 received data contents, e.g. message integrity
• CPC Class Codes: H04L 63/1458 Denial of Service
• CPC Class Codes: H04L 63/20 for managing network security; network security policies in general filtering policies H04L63/0227
• CPC Class Codes: H04L 9/0844 with user authentication or key authentication, e.g. ElGamal, MTI, MQV-Menezes-Qu-Vanstone protocol or Diffie-Hellman protocols using implicitly-certified keys
• CPC Class Codes: H04W 12/106 Packet or message integrity
• CPC Class Codes: H04W 12/125 Protection against power exhaustion attacks
• CPC Class Codes: H04W 88/02 Terminal devices

Abstract

A method of operating a mobile communication device in a mobile communication network, the method comprising the steps of the mobile communication device: receiving a non integrity-protected message with a parameter value included therein to be implemented on the mobile communication device; using a predetermined value stored on the mobile communication device instead of the parameter value received.

Claims

1. A method of operating a mobile communication device in a mobile telecommunication network, the method comprising the steps of the mobile communication device:

receiving a non integrity-protected message with a parameter value included therein to be implemented on the mobile communication device;

using a predetermined value stored on the mobile communication device instead of the parameter value received.

2. The method of claim 1, wherein the predetermined value is the mobile communication device'"'"'s default value of the parameter.

3. The method of claim 1, wherein the predetermined value is a value of the parameter currently being used by the mobile communication device.

4. The method of claim 1 further comprising the step of the network providing non integrity-protected messages without the parameter value.

5. The method of claim 1 further comprising the step of the network providing to the mobile communication device the parameter value in an integrity-protected message once the mobile communication device has completed registration, and said mobile communication device implementing the parameter value received in the integrity-protected message.

6. The method of claim 1, wherein the non integrity-protected message includes a parameter value associated with a timer, said timer determining how long the mobile communication device must wait prior to a further attempt to register itself to the network.

8. A mobile communication device adapted to carry out the method of claim 1.

7. A method of communicating over a mobile communication network using an air interface to communicate with a mobile communication device, in which integrity-protected and non integrity-protected messages are transmitted to the mobile communication device, said messages including parameter values to be implemented at the mobile communication device, the method comprising the step of:

ensuring the mobile communication device uses a valid value for the parameter, the valid value allowing communication over the network to continue.