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Method and system for vehicle authentication of a remote access device

  • US 7,181,615 B2
  • Filed: 06/28/2002
  • Issued: 02/20/2007
  • Est. Priority Date: 06/28/2002
  • Status: Active Grant
First Claim
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1. A method for a vehicle securely communicating with a remote access device, the method performed by the vehicle and comprising the steps of:

  • obtaining from a certification authority a certification that an authentic device is associated with a cryptographic key;

    utilizing the cryptographic key in cryptographic communication with the remote access device;

    determining whether the remote access device is the authentic device based on whether the cryptographic key is successfully utilized in the cryptographic communication; and

    communicating further with the remote access device upon determining that the remote access device is the authentic device.

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