Patent ID: 11861046
Assignee: INFINEON TECHNOLOGIES AG
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 14:
15. A system, comprising:
a cryptographic accelerator to generate a check value based on a payload received in a message, the check value generated by the cryptographic accelerator comprising a first cyclic redundancy check (CRC) value or a first message authentication code (MAC);
a first comparator to:
determine whether the check value generated by the cryptographic accelerator matches a check value received in the message, the check value received in the message comprising a second CRC value or a second MAC, and
provide a first output indicating a first result that indicates that the check value generated by the cryptographic accelerator matches the check value received in the message or a second result that indicates that the check value generated by the cryptographic accelerator does not match the check value received in the message;

a second comparator to:
determine whether the check value generated by the cryptographic accelerator matches the check value received in the message, and
provide a second output indicating the first result or the second result; and

a processor to:
determine whether the cryptographic accelerator, the first comparator, or the second comparator have experienced a hardware fault, based on whether the first output and the second output indicate a same result.