Method and system for vehicle authentication of a subassembly
First Claim
1. A method for authentication of a subassembly for use in a vehicle, the method performed by the vehicle and comprising the steps of:
- obtaining a prospective subassembly;
obtaining from a certification authority a certification that an authentic subassembly is associated with a cryptographic key;
utilizing the cryptographic key in cryptographic communication with the prospective subassembly; and
determining whether the prospective subassembly is the authentic subassembly based on whether the cryptographic key is successfully utilized in the cryptographic communication with the prospective subassembly.
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Accused Products
Abstract
A vehicle obtains a prospective subassembly for use in the vehicle. The vehicle also obtains from a certification authority a certification that an authentic subassembly is associated with a cryptographic key. The certification certifies that the cryptographic key is bound to information identifying the authentic subassembly. The certification may also include a digital signature of the certification authority. The vehicle utilizes the cryptographic key obtained from the certification authority in cryptographic communication with the prospective subassembly, and determines whether the prospective subassembly is the authentic subassembly based on whether the cryptographic key is successfully utilized in the cryptographic communication. Upon determining the prospective subassembly is the authentic subassembly, the vehicle may allow the prospective subassembly to become operative within the vehicle.
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Citations
30 Claims
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1. A method for authentication of a subassembly for use in a vehicle, the method performed by the vehicle and comprising the steps of:
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obtaining a prospective subassembly;
obtaining from a certification authority a certification that an authentic subassembly is associated with a cryptographic key;
utilizing the cryptographic key in cryptographic communication with the prospective subassembly; and
determining whether the prospective subassembly is the authentic subassembly based on whether the cryptographic key is successfully utilized in the cryptographic communication with the prospective subassembly. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A system for authentication of a subassembly for use in a vehicle, the system comprising:
a configuration element obtaining from a certification authority a certification that an authentic subassembly is associated with a cryptographic key, the vehicle system comprising a cryptographic unit utilizing the cryptographic key in cryptographic communication with a prospective subassembly; and
a computing unit determining whether the prospective subassembly is the authentic subassembly based on whether the cryptographic key is successfully utilized in the cryptographic communication. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
Specification