Method and system for vehicle authorization of a service technician

A system for a vehicle authorizing a service technician for performing a service operation on the vehicle, the system comprising:

• a secure device having limited accessibility but being accessible by the service technician and storing a first cryptographic key associated with the service technician;
• a computing unit obtaining from a certification authority a certification that an authentic technician is associated with a second cryptographic key corresponding to the first cryptographic key and further verifying that the certification authority is authorized to certify the authentic technician by accessing a prestored dynamic list that is rewritable by a vehicle manufacturer;
• and
• a cryptographic unit utilizing the second cryptographic key in cryptographic communication with the secure device,
• the computing unit determining whether the service technician is the authentic technician based on whether the second cryptographic key is successfully utilized in the cryptographic communication, the computing unit, upon determining that the service technician is the authentic technician based on the second cryptographic key being successfully utilized in the cryptographic communication, accessing a technician database to determine whether the service technician is indicated as authorized to perform the service operation on the vehicle, and the computing unit allowing the service technician to perform the service operation if the service technician is indicated as authorized to perform the service operation.