Patents by Inventor Cedric Ruby

Cedric Ruby has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8174285
    Abstract: In order to protect an integrated circuit provided with a cryptoprocessor from attacks aiming to reveal secrets, it is anticipated to use a component sensitive to the activation of a parasitic (latchup) thyristor and/or to the activation of a parasitic bipolar transistor, or to design a circuit having this property. If the component is stressed due to the presence of this circuit, it is immediately deactivated, actually preventing the revelation of the secrets thereof.
    Type: Grant
    Filed: April 27, 2007
    Date of Patent: May 8, 2012
    Assignee: European Aeronautic Defence and Space Company EADS
    Inventors: Nadine Buard, Cedric Ruby, Florent Miller, Imad Lahoud
  • Publication number: 20110043245
    Abstract: In order to protect an integrated circuit provided with a cryptoprocessor from attacks aiming to reveal secrets, it is anticipated to use a component sensitive to the activation of a parasitic (latchup) thyristor and/or to the activation of a parasitic bipolar transistor, or to design a circuit having this property. If the component is stressed due to the presence of this circuit, it is immediately deactivated, actually preventing the revelation of the secrets thereof.
    Type: Application
    Filed: April 27, 2007
    Publication date: February 24, 2011
    Inventors: Nadine Buard, Imad Lahoud, Florent Miller, Cedric Ruby