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User transparent registration process for secure communication

  • US 7,649,997 B2
  • Filed: 06/30/2004
  • Issued: 01/19/2010
  • Est. Priority Date: 06/30/2004
  • Status: Expired due to Fees
First Claim
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1. A method for secure communication, the method comprising:

  • detecting a first device in proximity to a second device, wherein the detecting is performed using a gateway communication link;

    receiving a request at the first device to communicate with the second device to establish an audio conversation between a plurality of users;

    automatically performing a registration process using a key exchange protocol in response to receiving the request, the registration process comprising;

    determining existence of an encryption key between the first device and the second device; and

    initiating creation of the encryption key in response to a determination that the encryption key does not exist, the initiating occurring without user input, and wherein the creation includes;

    at each of the first device and the second device, generating a unique public key, exchanging the unique public keys, and creating an encryption key based on the exchanged unique public key;

    communicating with the second device using the encryption key to secure the audio conversation;

    wherein the first device is a vehicle and the second device is a telephone, the first device and second device communicating via wireless link, and further wherein the gateway communication link is interfaced to a human-vehicle interface (HVI) over a vehicle network, the HVI enabling one of the plurality of users to initiate the request; and

    performing user authentication of the communication.

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