Patents by Inventor Bertrand Pladeau

Bertrand Pladeau 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 of transferring the control of a security module from a first entity to a second entity
    Patent number: 9124561
    Abstract: A method is provided for transferring control of a security module from a first entity to a second entity. The security module has a first security domain controlled by the first entity by at least one first secret control key specific to the first entity, and a second security domain, the second domain containing a private key and a certificate of a public key of a controlling authority. The method includes: receiving a request to obtain the certificate; sending the certificate; receiving data encrypted by the public key of the certificate, the data including at least one second secret control key specific to the second entity; decrypting the data; verifying the data; and if the verification is positive, replacing the at least one first secret control key by the at least one second secret control key.
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: September 1, 2015
    Assignee: Orange
    Inventors: Ahmad Saif, Bertrand Pladeau
  • METHOD OF TRANSFERRING THE CONTROL OF A SECURITY MODULE FROM A FIRST ENTITY TO A SECOND ENTITY
    Publication number: 20140359295
    Abstract: A method is provided for transferring control of a security module from a first entity to a second entity. The security module has a first security domain controlled by the first entity by at least one first secret control key specific to the first entity, and a second security domain, the second domain containing a private key and a certificate of a public key of a controlling authority. The method includes: receiving a request to obtain the certificate; sending the certificate; receiving data encrypted by the public key of the certificate, the data including at least one second secret control key specific to the second entity; decrypting the data; verifying the data; and if the verification is positive, replacing the at least one first secret control key by the at least one second secret control key.
    Type: Application
    Filed: October 12, 2012
    Publication date: December 4, 2014
    Applicant: ORANGE
    Inventors: Ahmad Saif, Bertrand Pladeau