Threat Mitigation in a Vehicle-to-Vehicle Communication Network
First Claim
1. A method of obtaining a certificate revocation list (CRL) for a vehicle in a vehicle-to-vehicle communication system, the method comprising the steps of:
- providing a portable security unit to access secured operations for the vehicle;
linking the portable security unit to a network device having access to a communication network, the communication network being in communication with a certificate authority for issuing an updated CRL downloading the updated CRL from the certificate authority to the portable security unit;
establishing a communication link between the portable security unit and a vehicle processor unit; and
exchanging mutual authentication between the portable security unit and the vehicle processing unit, wherein the updated CRL stored in the portable security unit is downloaded to a memory of the vehicle communication system in response to a successful mutual authentication.
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Accused Products
Abstract
A method is provided for obtaining a certificate revocation list (CRL) for a vehicle in a vehicle-to-vehicle communication system. A portable security unit is provided to access secured operations for the vehicle. The portable security unit is linked to a device having access to a communication network. The communication network is in communication with a certificate authority for issuing an updated CRL. The updated CRL is downloaded from the certificate authority to the portable security unit. At a later time, when a user enters the vehicle, a communication link is established between the portable security unit and a vehicle processor unit. Mutual authentication is exchanged between the portable security unit and the vehicle processing unit. The updated CRL stored in the portable security unit is downloaded to a memory of the vehicle communication system in response to a successful mutual authentication.
49 Citations
21 Claims
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1. A method of obtaining a certificate revocation list (CRL) for a vehicle in a vehicle-to-vehicle communication system, the method comprising the steps of:
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providing a portable security unit to access secured operations for the vehicle; linking the portable security unit to a network device having access to a communication network, the communication network being in communication with a certificate authority for issuing an updated CRL downloading the updated CRL from the certificate authority to the portable security unit; establishing a communication link between the portable security unit and a vehicle processor unit; and exchanging mutual authentication between the portable security unit and the vehicle processing unit, wherein the updated CRL stored in the portable security unit is downloaded to a memory of the vehicle communication system in response to a successful mutual authentication. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A vehicle-to-vehicle communication system comprising:
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a vehicle communication processing unit for controlling a broadcast of wireless messages within the vehicle-to-vehicle communication system, the vehicle communication processing unit having a memory for storing certificate revocation lists (CRL); and a portable security unit for linking to the vehicle processing unit, the portable security unit communicating with the processing unit for performing mutual authentication between the portable security unit and the vehicle communication processing unit in response to being linked to one another, the portable security unit having a non-volatile memory for storing an updated certification revocation list; wherein the portable security unit links to a network device having access to a communication network, the communication network being in communication with a certificate authority for issuing an updated CRL, wherein the updated CRL is downloaded from the certificate authority to the portable security unit, wherein the portable security unit establishes a communication link to the vehicle communication system in response to initiating a vehicle security operation, and wherein the updated CRL stored in the portable security unit is downloaded to the memory of the vehicle communication system in response to the mutual authentication between the portable security unit and the vehicle processing unit. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification