Efficient fault emulation based on post-injection fault effect analysis (PIFEA)

Over the last years the complexity of SoC´s has increased enormously. This increase leads to a high test effort against faults. Therefore, methods have been developed to speed-up fault testing to cope with the increasing number of possible faults. One method is to emulate fault attacks. To cope with the large amount of test data a method to check automatically if a fault injection was successful is required. In this paper a novel method is presented how automatically, on a fault emulation platform, can be proven if a fault forces the system to unintended behavior. The PIFEA hardware block is designed to check if the system execution flow is manipulated or if the system detects the fault and switches in a secure mode.