×

PROTECTION AGAINST FAULT INJECTIONS OF AN ELECTRONIC CIRCUIT WITH FLIP-FLOPS

  • US 20100026358A1
  • Filed: 07/28/2009
  • Published: 02/04/2010
  • Est. Priority Date: 07/30/2008
  • Status: Active Grant
First Claim
Patent Images

1. A method for detecting a disturbance of the state of a synchronous flip-flop of master-slave type comprising two bistable circuits in series, wherein:

  • the bistable circuits are triggered by two first signals different from each other; and

    the level of an intermediary junction point between the two bistable circuits is compared both to the level present at the input of the master-slave flip-flop and to the level present at the output, which results in two second signals providing an indication as to the presence of a possible disturbance.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×