APPARATUS AND METHOD FOR INHIBITING ANALYSIS OF A SECURE CIRCUIT

摘要

A secure circuit (6) is protected from reverse engineering by sensing radiation (14) to which the circuit (6) is normally not exposed, but which is present in its analysis. The circuit (6) is modified in response to such radiation (14) so that it is not compromised by subsequent analysis. The secure circuit (6) can be implemented as a volatile memory having a power supply circuit V<+>, V<->, (8) that is interrupted in response to radiation exposure.