Patents by Inventor Françoise LEVY-dit-VEHEL

Françoise LEVY-dit-VEHEL 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).

  • Storage efficient and unconditionally secure private information retrieval
    Patent number: 10289862
    Abstract: A method of storing and retrieving a set of original data (E1, . . . , En) in and from a plurality of remote servers (SP1, . . . , SPI+1), comprises a coding step which consists in creating a set of coded data (S1, . . . , SN) from the set of original data (E1, . . . , En), a storing step which consists in storing the set of coded data (S1, . . . , SN) into the plurality of remote servers (SP1, . . . , SPI+1). Each server (SP1, . . . , SPI+1) of the said plurality of servers stores only a respective part of the set of coded data (S1, . . . , SN) and the method comprises a step which consists in generating a table (T1, T2) which indicates which respective part of the set of coded data (S1, . . . , SN) is stored in which server of the said plurality of remote servers (SP1, . . . , SPI+1).
    Type: Grant
    Filed: April 14, 2015
    Date of Patent: May 14, 2019
    Assignees: ALCATEL LUCENT, INSTITUT NATIONAL DE RECHERCHE EN INFORMATIQUE ET EN AUTOMATIQUE
    Inventors: Daniel Augot, Françoise Levy-dit-Vehel, Abdullatif Shikfa
  • STORAGE EFFICIENT AND UNCONDITIONALLY SECURE PRIVATE INFORMATION RETRIEVAL
    Publication number: 20170032142
    Abstract: A method of storing and retrieving a set of original data (E1, . . . , En) in and from a plurality of remote servers (SP1, . . . , SPI+1), comprises a coding step which consists in creating a set of coded data (S1, . . . , SN) from the set of original data (E1, . . . , En), a storing step which consists in storing the set of coded data (S1, . . . , SN) into the plurality of remote servers (SP1, . . . , SPI+1). Each server (SP1, . . . , SPI+1) of the said plurality of servers stores only a respective part of the set of coded data (S1, . . . , SN) and the method comprises a step which consists in generating a table (T1, T2) which indicates which respective part of the set of coded data (S1, . . . , SN) is stored in which server of the said plurality of remote servers (SP1, . . . , SPI+1).
    Type: Application
    Filed: April 14, 2015
    Publication date: February 2, 2017
    Applicants: Alcatel Lucent, Institut National de Recherche en Informatique et en Automatique
    Inventors: Daniel AUGOT, Françoise LEVY-dit-VEHEL, Abdullatif SHIKFA
  • Cryptographic system comprising an encryption and decryption system and a key escrow system, and the associated equipment and devices
    Publication number: 20050123131
    Abstract: The present invention concerns a cryptographic system, combining the so-called discrete logarithm and factorization principles, comprising an encryption and decryption system and a key escrow system, and the associated equipment and devices. It is particularly intended to be used in electronic systems of the type comprising chip cards, PCMCIA cards, badges, contactless cards or any other portable equipment.
    Type: Application
    Filed: April 5, 2004
    Publication date: June 9, 2005
    Applicant: Gemplus
    Inventors: David Naccache, Francoise Levy-Dit-Vehel, Jacque Stern