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Apparatus and methods for activation of communication devices

  • US 9,736,144 B2
  • Filed: 07/14/2014
  • Issued: 08/15/2017
  • Est. Priority Date: 06/01/2012
  • Status: Expired due to Fees
First Claim
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1. A universal integrated circuit card for a communication device, the universal integrated circuit card comprising:

  • a memory to store instructions; and

    a processing system comprising a processor coupled to the memory, wherein the processing system, responsive to executing the instructions, performs operations comprising;

    receiving a digital root certificate locking the communication device to a network provider, wherein the digital root certificate includes an expiration date;

    storing the digital root certificate in the memory;

    receiving, over a network from a trusted identity provider having an issuing authority from the network provider, a digitally signed security identifier for a prospective subscriber of the communication device, wherein the digitally signed security identifier includes network identifying information for the prospective subscriber that is digitally signed using the digital root certificate, wherein a first condition for enabling of the communication device is validation of the digitally signed security identifier against the digital root certificate that is stored in the memory, and wherein the digitally signed security identifier is usable by only the network provider;

    receiving over the network from a trusted certificate authority a certificate revocation status associated with the digital root certificate,determining if the certificate revocation status is a revoked status indicating that the digital root certificate has been revoked due to a termination of the issuing authority of the trusted identity provider;

    if the certification revocation status is the revoked status;

    disabling activation of the communication device; and

    if the certification revocation status is not the revoked status;

    receiving over the network an instruction;

    determining whether the instruction that is received is for modifying the expiration date of the digital root certificate;

    modifying the expiration date of the digital root certificate responsive to determining that the instruction is for modifying the expiration date;

    disabling activation of the communication device according to the expiration date that is modified;

    determining whether the expiration date of the digital root certificate has expired; and

    disabling the first condition for enabling the communication device such that the communication device is unlocked from the network provider, wherein the disabling of the first condition does not alter the digitally signed security identifier.

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