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Digital certificate pool

  • US 7,734,050 B2
  • Filed: 03/27/2006
  • Issued: 06/08/2010
  • Est. Priority Date: 03/27/2006
  • Status: Expired due to Fees
First Claim
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1. A method of assigning a plurality of private keys to a vehicle in a wireless system, the method comprising:

  • generating a vehicle identifier that is indicative of the vehicle based on at least one of a hardware configuration and a software configuration of the vehicle such that the vehicle identifier changes when the at least one of the hardware configuration and the software configuration changes;

    encrypting the vehicle identifier at the vehicle;

    sending a request for the private keys with the encrypted vehicle identifier from the vehicle to a certificate authority;

    obtaining an authentication of the vehicle based on the encrypted vehicle identifier to assign the private keys to the vehicle;

    selecting the plurality of private keys from a pool of common private keys, at least one of the selected private keys being used for encrypting a message at the vehicle, and each of the private keys in the pool of common private keys being shared by a plurality of vehicles;

    sending the selected private keys to the vehicle; and

    storing the selected private keys in the vehicle.

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