Patents by Inventor Loïc Duflot

Loïc Duflot 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).

  • Device forming a logic gate for detecting a logic error
    Patent number: 8030970
    Abstract: The invention relates to a device for forming an electric circuit comprising logic means (30) generating and using small signals of intermediate levels between the device supply levels and means for detecting signals leaving the small signal range.
    Type: Grant
    Filed: June 6, 2006
    Date of Patent: October 4, 2011
    Assignee: Etat Francais, repr{acute over ())}{acute over (})}senté par le Secretariat General de la Defense Nationale
    Inventor: Loïc Duflot
  • Device forming a logic gate for minimizing the differences in electrical or electro-magnetic behavior in an integrated circuit manipulating a secret
    Patent number: 7863926
    Abstract: An electrical device having a logic gate whose consumption is independent from its input data and its logic state. To this end, the device uses logic means forming switches. The interest in having a device of this type is, for example, to protect chip cards and other cryptosystems from attacks via auxiliary channels, such as collision attacks by and attacks by differential analysis of current, power or consumption. This protection is provided by the hardware. The device is for integration in all devices requiring such a protection.
    Type: Grant
    Filed: May 4, 2006
    Date of Patent: January 4, 2011
    Assignee: Etat Francais, représenté par le Secretariat General de la Defense Nationale
    Inventors: Loïc Duflot, Philippe Le Moigne, Fabien Germain
  • Device forming a logic gate for minimizing the differences in electrical of electro-magnetic behavior in an intergrated circuit manipulating a secret
    Publication number: 20090302882
    Abstract: The invention relates to a logic gate whose consumption is independent from its input data and its logic state. To this end, the device uses logic means forming switches (220, 720, 750). The interest in having a device of this type is, for example, to protect chip cards and other cryptosystems from attacks via auxiliary channels such as collision attacks by and attacks by differential analysis of current, power or consumption. This protection is provided by the hardware. The invention is for integration in all devices requiring such a protection.
    Type: Application
    Filed: May 4, 2006
    Publication date: December 10, 2009
    Inventors: Loïc Duflot, Philippe Le Moigne, Fabien Germain
  • Device forming a logic gate for detecting a logic error
    Publication number: 20090302883
    Abstract: The invention relates to a device for forming an electric circuit comprising logic means (30) generating and using small signals of intermediate levels between the device supply levels and means for detecting signals leaving the small signal range.
    Type: Application
    Filed: June 6, 2006
    Publication date: December 10, 2009
    Applicant: ETAT FRANCAIS, represente' par le SECRETARIAT GENERAL DE LA DEFENSE NATIONALE
    Inventor: Loïc Duflot