×

Service provider activation

  • US 7,929,959 B2
  • Filed: 09/01/2007
  • Issued: 04/19/2011
  • Est. Priority Date: 09/01/2007
  • Status: Active Grant
First Claim
Patent Images

1. A machine-implemented method of activating a mobile device, the method comprising:

  • issuing from a mobile device having a currently inserted SIM card an activation request, the activation request comprising data that uniquely identifies the device and data that uniquely identifies the currently inserted SIM card;

    storing in the mobile device a signed activation record comprising the device data and the SIM card data, the activation record having been generated and signed by an activation server responding to the activation request;

    verifying the activation record against the currently inserted SIM card, wherein verifying the activation record stored in the device further comprises decrypting a content of the activation record using a device obfuscation key that is derived from a hardware thumbprint of the device and a shared obfuscation key; and

    registering the device with a communications network after successfully verifying the activation record.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×