Patents by Inventor Jacque Stern

Jacque Stern 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).

  • 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