Patents Assigned to CRYPTOEXPERTS SAS
  • Method and system for conditional access to a digital content, associated terminal and subscriber device
    Patent number: 9749129
    Abstract: A secure method for transmitting a control word between a server and a plurality of processing entities so as to respectively produce and utilize the control word. Preferably such a method is applied to the field of conditional access methods and systems for preventing the fraudulent use of compromised decryption keys resulting from a coalition of pirate hackers.
    Type: Grant
    Filed: November 21, 2011
    Date of Patent: August 29, 2017
    Assignee: CRYPTOEXPERTS SAS
    Inventors: Cécile Delerablee, Aline Gouget, Pascal Paillier
  • Method and system for conditional access to a digital content, associated terminal and subscriber device
    Patent number: 9294273
    Abstract: The invention relates to a method and a system for conditional access making it possible to prevent the fraudulent use of a subscriber electronic device (1a, 1b, 1m) and to thus effectively combat the fraudulent making available of protected contents. The invention further relates to the adaptation of such a device as well as to a method allowing the revocation of the latter if it is deemed to be illicitly exploited or its possible reinstatement.
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: March 22, 2016
    Assignee: CRYPTOEXPERTS SAS
    Inventors: Cécile Delerablee, Aline Gouget, Pascal Paillier
  • Method for identifying a device used by a hacked terminal, and related device
    Patent number: 9178695
    Abstract: The invention relates to a method for preventing the fraudulent use of an electronic device and thus for effectively combating the fraudulent dissemination of protected content. The invention further relates to such a device as well as to a method enabling permanent revocation thereof if the device is considered to be unlawfully used or optional reinstatement of the device.
    Type: Grant
    Filed: March 21, 2011
    Date of Patent: November 3, 2015
    Assignee: CRYPTOEXPERTS SAS
    Inventors: Cécile Delerablee, Aline Gouget, Pascal Paillier
  • METHOD AND SYSTEM FOR CONDITIONAL ACCESS TO A DIGITAL CONTENT, ASSOCIATED TERMINAL AND SUBSCRIBER DEVICE
    Publication number: 20130326211
    Abstract: The invention relates to a method and a system for conditional access making it possible to prevent the fraudulent use of a subscriber electronic device (1a, 1b, 1m) and to thus effectively combat the fraudulent making available of protected contents. The invention further relates to the adaptation of such a device as well as to a method allowing the revocation of the latter if it is deemed to be illicitly exploited or its possible reinstatement.
    Type: Application
    Filed: December 16, 2011
    Publication date: December 5, 2013
    Applicant: CRYPTOEXPERTS SAS
    Inventors: Cécile Delerablee, Aline Gouget, Pascal Paillier
  • METHOD AND SYSTEM FOR CONDITIONAL ACCESS TO A DIGITAL CONTENT, ASSOCIATED TERMINAL AND SUBSCRIBER DEVICE
    Publication number: 20130308776
    Abstract: A secure method for transmitting a control word between a server and a plurality of processing entities so as to respectively produce and utilize the control word. Preferably such a method is applied to the field of conditional access methods and systems for preventing the fraudulent use of compromised decryption keys resulting from a coalition of pirate hackers.
    Type: Application
    Filed: November 21, 2011
    Publication date: November 21, 2013
    Applicant: CRYPTOEXPERTS SAS
    Inventors: Cécile Delerablee, Aline Gouget, Pascal Paillier
  • METHOD FOR IDENTIFYING A DEVICE USED BY A HACKED TERMINAL, AND RELATED DEVICE
    Publication number: 20130212374
    Abstract: The invention relates to a method for preventing the fraudulent use of an electronic device and thus for effectively combating the fraudulent dissemination of protected content. The invention further relates to such a device as well as to a method enabling permanent revocation thereof if the device is considered to be unlawfully used or optional reinstatement of the device.
    Type: Application
    Filed: March 21, 2011
    Publication date: August 15, 2013
    Applicant: CRYPTOEXPERTS SAS
    Inventors: Cécile Delerablee, Aline Gouget, Pascal Paillier