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 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.