Semiconductor device i.e. smart card-controller, has multiple modules, where two of modules respectively include alarm recognition device for recognizing attack e.g. differential fault attack and reengineering attack

摘要

The device has multiple modules (1-6), where two of the modules respectively include an alarm recognition device (AD) for recognizing an attack e.g. differential fault attack and reengineering attack. The alarm recognition device is caused to adjust its operation on one of the modules during recognizing the attack. Signal lines (AI) are provided between the modules for alarm transmission and connected with the modules via the alarm recognition device. The signal lines are independent of each other.