Electronic circuit protected against analysis

Abstract

The present invention relates to an electronic circuit composed of a plurality of logic gates characterized in that: - at least a part of the plurality of logic gates is divided into a plurality of groups of logic gates; - each group of logic gates is powered by a voltage randomly selected from a set of at least two available voltages; and - a new random selection of the voltages powering the groups of logic gates is performed between two uses of the circuit. [Fig. 1]