Authorization process using a certificate

Details Authorization process using a certificate Authorization process using a certificate

2007-03-27

2007-03-27

Barron, Gilberto (Department: 2132)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Central trusted authority provides computer authentication

C713S156000, C713S176000, C713S189000

Reexamination Certificate

active

09792034

ABSTRACT:
In a process for insuring data integrity of software for a control unit of a motor vehicle, a central system (trust center) can issue certificates to authorized parties, enabling them to properly sign software for the control unit and import it into a vehicle to enable operation of the vehicle. For this purpose, the trust center (or the vehicle itself) provides a pair of control unit keys having a first and second key. The first key is stored during production of the vehicle in such a manner that it is accessible to the control unit. By means of the second key of the trust center, a first certificate for an authorized party (certificate holder) is signed.

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