Patents by Inventor Jérôme Perrine

Jérôme Perrine 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 and a method for performing a cryptographic function
    Patent number: 8355500
    Abstract: The present invention provides a method and an apparatus for encrypting and decrypting digital information while imparting a high level of security on the encrypted digital information. A mixed-mode digital-analogue encryption and decryption technique is proposed, which minimizes the probability of an unintended recipient of the thus encrypted information being able to decrypt the information using known reverse engineering techniques.
    Type: Grant
    Filed: March 31, 2011
    Date of Patent: January 15, 2013
    Assignee: Nagravision S.A.
    Inventors: Jerome Perrine, Roan Hautier
  • DEVICE AND A METHOD FOR PERFORMING A CRYPTOGRAPHIC FUNCTION
    Publication number: 20110249814
    Abstract: The present invention provides a method and an apparatus for encrypting and decrypting digital information while imparting a high level of security on the encrypted digital information. A mixed-mode digital-analogue encryption and decryption technique is proposed, which minimises the probability of an unintended recipient of the thus encrypted information being able to decrypt the information using known reverse engineering techniques.
    Type: Application
    Filed: March 31, 2011
    Publication date: October 13, 2011
    Applicant: NAGRAVISION S.A.
    Inventors: Jérôme PERRINE, Roan HAUTIER
  • Digital electronic component which is protected against electrical-type analyses
    Patent number: 7352861
    Abstract: This invention relates to a digital electronic component which is protected against electrical- and/or electromagnetic-type analyse). The inventive component comprises: a synchronous element (10) which is controlled by a clock (H); means (11, 12) of generating said clock (H), the frequency of which varies randomly between a minimum value and a maximum value for at least a given period of time; and means (13) of controlling the random nature of the frequency change of said clock (H).
    Type: Grant
    Filed: December 11, 2002
    Date of Patent: April 1, 2008
    Assignee: Nagra Thomson Licensing
    Inventors: Jean-Luc Dauvois, Jérôme Perrine
  • Digital electronic component which is protected against electrical-type analyses
    Publication number: 20060013392
    Abstract: This invention relates to a digital electronic component which is protected against electrical- and/or electromagnetic-type analyses. The inventive component comprises: a synchronous element (10) which is controlled by a clock (H); means (11, 12) of generating said clock (H), the frequency of which varies randomly between a minimum value and a maximum value for at least a given period of time; and means (13) of controlling the random nature of the frequency change of said clock (H).
    Type: Application
    Filed: December 11, 2002
    Publication date: January 19, 2006
    Inventors: Jean-Luc Dauvois, Jerome Perrine