Patent ID: 11895241
Assignee: VEONEER SWEDEN AB
Field: Digital communication (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 9:
10. A method of verifying the operation of a driver assistance apparatus for installation in a motor vehicle, the apparatus including a safety electronic control unit having operating instructions stored thereon that dictate the operation of the safety electronic control unit, wherein the operating instructions contain driver assistance operating instructions, the method including:
calculating, using a hash function performed by a trusted source at a time of production of the operating instructions, a test hash value of at least a portion of the operating instructions;
decrypting, by the safety electronic control unit, a verified hash value stored on a verified hash storage memory;
comparing the test hash value with the verified hash value to verify that the operating instructions have not been altered, the verified hash value having been determined for at least a portion of verified operating instructions; and
if the test hash value is not equal to the verified hash value, performing a safety routine.