Method and system for vehicle authentication of a component using key separation
AssigneeMotorola, Inc.
InventorsLarry C. Puhl, Ezzat A. Dabbish
Life of this patent
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Abstract
A vehicle authenticates a prospective component for use in the vehicle by obtaining from a certification authority a certification that an authentic component is associated with a cryptographic key. The vehicle obtains the certification separately from the component. The certification certifies that the cryptographic key is bound to information identifying the authentic component. The vehicle utilizes the cryptographic key obtained from the certification authority in cryptographic communication with the prospective component, and determines whether the prospective component is the authentic component based on whether the cryptographic key is successfully utilized in the cryptographic communication.
Claims24
A method for authentication of a component for use in a vehicle, the method performed by the vehicle and comprising the steps of:
- obtaining a prospective component;
- obtaining from a certification authority a certification that an authentic component is associated with a cryptographic key, wherein the certification is obtained separately from the prospective component;
- utilizing the cryptographic key in cryptographic communication with the prospective component;
- and
- determining whether the prospective component is the authentic component based on whether the cryptographic key is successfully utilized in the cryptographic communication.
A system for authentication of a component for use in a vehicle, the system comprising:
- a vehicle system obtaining from a certification authority a certification that an authentic component is associated with a cryptographic key;
- a cryptographic computing element utilizing the cryptographic key in cryptographic communication with a prospective component, wherein the certification is obtained separately from the prospective component;
- and
- the vehicle system determining whether the prospective component is the authentic component based on whether the cryptographic key is successfully utilized in the cryptographic communication.
Dependencies are inferred from the claim text.