Microprocessor comprising means for detecting errors, immunized against an error injection attack

摘要

The method involves producing a current cumulative signature during an execution of a sequence, by a signature production circuit (10), until a final cumulative signature is obtained. An error signal having an active value as long as the current cumulative signature is different from an expected signature, is produced. An error signal is masked during a predetermined time interval corresponding to a presumed execution of the sequence. - An INDEPENDENT CLAIM is also included for an integrated circuit comprising a central processing unit for executing a program comprising an instruction-code.