Maintaining mobile terminal information for secure communications

  • US 8,805,334 B2
  • Filed: 09/05/2008
  • Issued: 08/12/2014
  • Est. Priority Date: 11/22/2004
  • Status: Active Grant
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First Claim
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1. A method for securing communications with a mobile terminal, the method comprising:

  • maintaining information concerning a plurality of mobile terminals, the information comprising encryption information for each mobile terminal;

    wherein, the encryption information is derived from a service activation code received from a user of a mobile terminal of the plurality of mobile terminals,wherein, the service activation code is provided by the mobile terminal off-line to prevent eavesdropping before a secure communication channel is established;

    communicating with the mobile terminal via the secure communication channel that is established using the service activation code;

    wherein, the mobile terminal has a permanent terminal identity and a temporary identity.

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