Patents by Inventor Stephan STANKOWSKI

Stephan STANKOWSKI 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).

  • Method to manage subscriptions in a provisioning server
    Patent number: 10313855
    Abstract: The present invention relates to a method to manage subscriptions in a provisioning server (PS) able to communicate with a Hardware Security Module (HSM) having an HSM key (K). Said method being such that the HSM comprising a load and a reload function, the secure device key ((Ke1)K) and the storage key ((Ks)K) as encrypted and stored are provided (S1) to one of said functions, said functions outputting, the storage key ((Ks)Ke1)K) encrypted using the provided secure device (SE1) key (Ke1) and the HSM key K, and an APDU_putkey command ((APDU_PUTKEY((Ks)Ke1))Ke1), encrypted using the provided secure device (SE1) key (Ke1), to put the retrieved storage key ((Ks)Ke1) also encrypted using the provided secure device key (Ke1), the storage key as previously stored ((Ks)K) is overwritten (S6) with the storage key (((Ks)Ke1)K) encrypted using the secure device key (Ke1) and the HSM key (K) returned by the function.
    Type: Grant
    Filed: September 17, 2015
    Date of Patent: June 4, 2019
    Assignee: GEMALTO SA
    Inventors: Frédéric Dao, David Halle, Jean-François Arnaud, Jérôme Duprez, Stephan Stankowski, François Prigent
  • METHOD TO MANAGE SUBSCRIPTIONS IN A PROVISIONING SERVER
    Publication number: 20170222806
    Abstract: The present invention relates to a method to manage subscriptions in a provisioning server (PS) able to communicate with a Hardware Security Module (HSM) having an HSM key (K). Said method being such that the HSM comprising a load and a reload function, the secure device key ((Ke1)K) and the storage key ((Ks)K) as encrypted and stored are provided (S1) to one of said functions, said functions outputting, the storage key ((Ks)Ke1)K) encrypted using the provided secure device (SE1) key (Ke1) and the HSM key K, and an APDU_putkey command ((APDU_PUTKEY((Ke1))Ke1), encrypted using the provided secure device (SE1) key (Ke1), to put the retrieved storage key ((Ks)Ke1) also encrypted using the provided secure device key (Ke1), the storage key as previously stored ((Ks)K) is overwritten (S6) with the storage key (((Ks)Ke1)k) encrypted using the secure device key (Ke1) and the HSM key (K) returned by the function.
    Type: Application
    Filed: September 17, 2015
    Publication date: August 3, 2017
    Applicant: GEMALTO SA
    Inventors: Frédéric DAO, David HALLE, Jean-François ARNAUD, Jérôme DUPREZ, Stephan STANKOWSKI, François PRIGENT