Patent ID: 9003520
Filing Date: 2015-04-07
Classification: G06F,H03K

Abstract:
1. A device of storage element configured to store a single binary datum, the storage element comprising: a flip-flop formed by a plurality of logic gates, the flip-flop being configured to store the single binary datum; means for inputting an enable signal to the flip-flop; means for generating a secure enable signal; means for inputting a signal representative of said binary datum to the flip-flop, said storage to be performed by the flip-flop when the enable signal is at a first predetermined level; means for supplying an output signal from the storage element, the state of the output signal representing whereof represents the datum stored in said flip-flop; means for detecting commutation of the output signal; and means for detecting an attack directly against said enable signal or an intermediate signal internal to said storage element so as to prevent the storage of a datum in the storage element upon detecting attack.