Taking into account indirect jumps or calls in continuous control-flow checking

Control-flow checking (CFC) is one of the main approaches to monitor the behavior of a microprocessor-based system without specific assumptions on error models (e.g., single bit flips). Many approaches have been proposed and evaluated, but none takes explicitly into account the possibility of indirect jumps or calls for which destination addresses are not hard-coded. This paper discusses first the need for an approach taking care of such sequence breaks. Then an approach is proposed to enhance current control-flow checking schemes.