digital electronic components protected against electrical type analysis.

摘要

numerical electronic component protected analysis electrical and / or electromagnetic, comprising a synchronous element (10) controlled by a clock (H), characterized in that it comprises a setpoint generator random frequency (11) controlling a frequency generator ( 12) provides this clock (H) whose frequency varies randomly between a minimum value and a maximum value for at least one given time period, and means (13) for controlling the random character of the frequency change of this clock (H).