Patents Assigned to NAGRAVISION SARL
  • Patent number: 12206769
    Abstract: A method for data security implemented as an application on a device includes generating a request for one or more secret shares needed to reconstruct a key. The device stores a first secret share in its memory. The method also includes signing the request with a certificate that identifies the request as valid without identifying the device, and sending the request, signed with the certificate, to at least one other device. The method further includes receiving, from the at least one other device, the one or more secret shares, determining whether the one or more secret shares received from the at least one other device is sufficient to reconstruct the key, and reconstructing the key using the first secret share and the one or more secret shares upon determining that the one or more secret shares are sufficient to reconstruct the key.
    Type: Grant
    Filed: August 28, 2023
    Date of Patent: January 21, 2025
    Assignee: Nagravision Sàrl
    Inventor: Tommaso Gagliardoni
  • Publication number: 20250023729
    Abstract: A pairing method between a user device (1) and an operator device (2), the user device (1) being intended to receive conditional access data from the operator device (2), the user device having a user device identifier (UID), the operator having an operator device identifier (OID). The method comprises receiving, by the user device, a user device key (KUID) derived from a first cryptographically secure function and receiving, by the operator device, an operator key (KOID) derived from a second cryptographically secure function. The user device comprises a user device bilinear mathematical function (e(KUID, OID)) and the operator device comprises an operator bilinear mathematical function (e(UID, KOID)) which each define a pairing over an elliptic curve.
    Type: Application
    Filed: December 8, 2022
    Publication date: January 16, 2025
    Applicant: NAGRAVISION SARL
    Inventors: Marco Macchetti, Jerome Perrine, Nicolas Fischer
  • Publication number: 20250023710
    Abstract: A block cipher method and apparatus using round repetition for providing, from a plaintext message (10), a ciphertext message (50) and a global tag (52) is disclosed. The plaintext message is converted into a plurality of ordered plaintext blocks (11) which are successively processed during a round for computing:—a cryptogram (30) by encrypting input data (20) using a single cryptographic key, said cryptogram comprising a first segment (31) and a second segment (32)—a ciphertext block (51) by performing a first operation (41) using, as operands: said first segment (31) said current plaintext block (11) and said second segment (32). At each next round said input data is newly determined based on the current ciphertext block and an updated reproducible data. The ciphertext message is determined by concatenating the ciphertext blocks and the global tag by a second operation (42) using computed authentication local tags as operands.
    Type: Application
    Filed: July 29, 2024
    Publication date: January 16, 2025
    Applicant: NAGRAVISION SARL
    Inventor: Brecht WYSEUR
  • Patent number: 12200279
    Abstract: Devices, servers, systems and methods for content protection are provided. Disclosed embodiments improve temporal granularity of controlling access to the protected content and increase resilience against attacks attempting to prevent re-evaluation of conditions of access. Enforcement of re-evaluation may be based on the receipt and/or verification of tokens. In some embodiments, re-evaluation is enforced by periodically rendering content keys required for content decryption unuseable and/or clearing content keys already in use.
    Type: Grant
    Filed: February 13, 2024
    Date of Patent: January 14, 2025
    Assignee: NAGRAVISION Sarl
    Inventors: Christian Schwarz, Andre Nicoulin, Didier Hunacek
  • Publication number: 20250015997
    Abstract: Certain aspects of the present disclosure are directed towards a method for non-fungible token processing. The method generally includes identifying a trigger for generating a non-fungible token associated with a video clip, extracting a portion of the video clip in response to identifying the trigger, generating the non-fungible token corresponding to the portion of the video clip, and outputting the non-fungible token for hosting on a platform.
    Type: Application
    Filed: August 19, 2022
    Publication date: January 9, 2025
    Applicant: NAGRAVISION SARL
    Inventor: Ryan Spanier
  • Publication number: 20250016011
    Abstract: Aspects of the present disclosure include systems and techniques for processing non-fungible tokens. In some aspects, the techniques described herein relate to a method for non-fungible token (NFT) processing, including: encrypting information associated with an NFT using a first key of a key pair to yield encrypted NFT information; retrieving, from at least two entities, at least two key sections associated with a second key of the key pair: decrypting the encrypted NFT information associated with the NFT via the at least two key sections to yield decrypted NFT information; and outputting the decrypted NFT information.
    Type: Application
    Filed: November 29, 2022
    Publication date: January 9, 2025
    Applicant: NAGRAVISION SARL
    Inventors: Nathan Hamiel, Vishruta Gowda Rudresh, Ryan Spanier
  • Publication number: 20250005130
    Abstract: A method for verifying an application deployed on a network is provided. The method includes receiving, from a device of a first user, a verification request for verifying the application. The device is used by the first user to initiate an interaction with the application. The method further includes extracting, from the received verification request, a name and an address associated with the application. The method also includes searching in a database, based on at least one of the extracted name and address, for reference information associated with the application. The method also includes generating a verification response that is sent to the device of the first user, so as to alert the first user to a risk of interacting with the application.
    Type: Application
    Filed: June 28, 2024
    Publication date: January 2, 2025
    Applicant: NAGRAVISION SARL
    Inventors: Nathan HAMIEL, Ryan SPANIER, Jamshed MEMON
  • Publication number: 20250005000
    Abstract: A method for using, by a terminal equipment, an Oblivious Random-Access Memory (ORAM) database created in a remote server. A third-party device is connected to the terminal equipment and to the remote server through a communications network and executes receiving a request, sent by the terminal equipment, for having the third-party device to initiate the creation of the ORAM database in the remote server, initializing the creation of the ORAM database in the remote server by sending to the remote server ORAM database elements, generating metadata associated to the ORAM database created in the remote server, and sending, to the terminal equipment, the metadata for allowing the terminal equipment to use the ORAM database created in the remote server without going through the third-party device.
    Type: Application
    Filed: November 18, 2022
    Publication date: January 2, 2025
    Applicant: NAGRAVISION SARL
    Inventors: Tommaso GAGLIARDONI, Nils AMIET
  • Patent number: 12184935
    Abstract: Aspects of the present disclose involve a method, a device, and a system comprising a processor and a machine-readable storage medium storing at a set of instructions for identification and authentication of user profiles associated with a digital television system and displaying information related thereto. In example embodiments, the method includes identifying a user profile registered with a content presentation device based on received identification data that includes biometric data. The method further includes receiving, from a server, identifiers of a set of recently watched channels associated with the user profile and causing presentation of a recent channels interface that includes selectable elements corresponding to the set of recently watched channels.
    Type: Grant
    Filed: September 1, 2023
    Date of Patent: December 31, 2024
    Assignee: Nagravision Sàrl
    Inventors: Srinivasan Kannan, Siddalinga Swamy, Amudha Kaliamoorthi
  • Patent number: 12179700
    Abstract: The method of proximity detection between a first and a second device (DVC1, DVC2), carried out by the first device (DVC1), comprises the steps of collecting a first information on exposure of the first device (DVC1) to electromagnetic waves; receiving a second information on exposure of the second device (DVC2) to electromagnetic waves from the second device (DVC2); determining a matching information between the first information on exposure and the second information on exposure and detecting either proximity or non-proximity between the first and the second device (DVC1, DVC2) based on the matching information.
    Type: Grant
    Filed: March 22, 2022
    Date of Patent: December 31, 2024
    Assignee: Nagravision Sàrl
    Inventor: Jean-Bernard Fischer
  • Publication number: 20240427854
    Abstract: A method for tracking the processing of an initial digital asset according to at least one processing step delivering an output digital asset from at least one input digital asset, which is a function of the initial digital asset. The method includes watermarking the output digital asset with a watermark, representative of an identifier of the output digital asset; and creating, in a blockchain, metadata associated to the output digital asset, the metadata being associated with the identifier.
    Type: Application
    Filed: June 17, 2024
    Publication date: December 26, 2024
    Applicant: NAGRAVISION Sàrl
    Inventor: Pierre SARDA
  • Publication number: 20240419818
    Abstract: A system and method, the system including a database storing resource type elements describing resources, permission type elements describing permissions related to the resources, and user type elements describing users, each user type element being assigned to at least on e permission. The system has an access manager including a processor, and, for each resource, a resource provisioning software component that executes a resource provisioning task with the corresponding resource manager, by using APIs, to check and ensure a consistency between expected permissions on the resource assigned to users in the database, and permissions on the resource configured with the resource manager. A workflow automation software component automatically executes a workflow including the execution of each of the resource provisioning software components.
    Type: Application
    Filed: November 1, 2022
    Publication date: December 19, 2024
    Applicant: NAGRAVISION SÀRL
    Inventor: Romain AVIOLAT
  • Publication number: 20240413990
    Abstract: A method of synchronizing a device with a blockchain includes: receiving information about a first state of a blockchain; generating an RF broadcast signal encoding the information about the first state of the blockchain; and transmitting, at a first time, the first broadcast signal to the device. Similar methods for maintaining synchronization and for writing new data to a blockchain are also provided, as well as corresponding devices.
    Type: Application
    Filed: November 23, 2022
    Publication date: December 12, 2024
    Applicant: NAGRAVISION SARL
    Inventor: Tommaso Gagliardoni
  • Publication number: 20240414529
    Abstract: The present disclosure proposes method and systems for establishing secure communication session(s) between a first device and a second device, where the first device operates in a user network and implements a first key exchange protocol for secure communication. The second device is capable of communicating with the first device over a wireless communication network. The second device implements a second key exchange protocol that is different to the first key exchange protocol for secure communication. A proxy entity configured for implementing the first and the second key exchange protocols for secure communication is provided. The proxy entity is configured for generating and/or provisioning one or more session keys for the first and the second devices using the key exchange protocols specific to each device for establishing secure communication between the first and second device based on the generated session key(s).
    Type: Application
    Filed: June 20, 2024
    Publication date: December 12, 2024
    Applicant: NAGRAVISION SARL
    Inventors: Jean-Bernard FISCHER, Frederic THOMAS, Fabien GREMAUD
  • Publication number: 20240414163
    Abstract: An access management system for controlling access to an electronic resource is provided, wherein the electronic resource accessible at a resource address, and provided by a service provider having associated therewith an electronic provider address, the system comprising: a request management module, configured to determine whether a registration request received at the electronic provider address is a valid registration request, wherein: the registration request includes a public key or data identifying the public key, associated with a client device or user thereof from which the registration request is received; and an authorized client management module configured to add the public key of the user, or data identifying the public key, to an authorized list, if the request management module determines that the registration request is a valid registration request, wherein: when a public key or data identifying the public key of the client device is on the authorized list, the client device or user thereof i
    Type: Application
    Filed: November 23, 2022
    Publication date: December 12, 2024
    Applicant: NAGRAVISION SARL
    Inventor: Tommaso Gagliardoni
  • Publication number: 20240412569
    Abstract: A device for accessing data sent by a dongle connected to a vehicle. The device is battery powered and wirelessly communicates with at least one dongle connected to corresponding vehicle, a backend server through a communications network, and at least one terminal equipment configured for acting as a relay for exchange of data between the device and the backend server.
    Type: Application
    Filed: October 10, 2022
    Publication date: December 12, 2024
    Applicant: NAGRAVISION SÀRL
    Inventor: Juan-Ramon HERNANDEZ
  • Publication number: 20240414015
    Abstract: A system for providing a client device in a remote location secure access to the internet via a satellite connection is provided includes: a client device: a satellite system configured to provide the client device with access to the internet; and an internet service provider (ISP), wherein, during a registration process: the satellite system is configured to receive a first blockchain state signal which encodes information about a first state of a blockchain, and to generate and transmit a first RF broadcast signal encoding the information about the first state of the blockchain: the client device is configured to receive the first RF broadcast signal, to generate a registration request based on the information about the state of the blockchain, the registration request including a public key ID associated with the client device, and to be transmitted to an electronic address corresponding to a blockchain associated with the ISP, and to transmit the registration request to the satellite system: the satellite
    Type: Application
    Filed: November 23, 2022
    Publication date: December 12, 2024
    Applicant: NAGRAVISION SARL
    Inventor: Tommaso Gagliardoni
  • Patent number: 12162431
    Abstract: Passive entry systems, such as passive entry-passive start vehicle systems, using short-range wireless communication signals to determine a distance between nomadic devices and unlockable devices based on a round trip time of flight (TOF) measurement.
    Type: Grant
    Filed: August 29, 2023
    Date of Patent: December 10, 2024
    Assignee: NAGRAVISION SÀRL
    Inventors: Frédéric Thomas, Joël Conus
  • Publication number: 20240403392
    Abstract: The present disclosure relates to asset tracking. In particular, the present disclosure relates to facilitating asset supervision and monitoring. Further in particular, the present disclosure relates to a system and method incentivising user behaviour to increase a reliability of the asset tracking.
    Type: Application
    Filed: December 29, 2022
    Publication date: December 5, 2024
    Applicant: NAGRAVISION SARL
    Inventors: Matthieu Michelet, Pascal Métral, Michael Sharp, Clément Marx, Adrien Chinelli, Jerry Gee
  • Patent number: 12158359
    Abstract: A method for managing communications within a network comprising utility meters, each associated and connected to at least one utility management center through at least one intermediate data concentrator. A message is sent by a utility meter to the destination data concentrator. This message includes metering data measurement reported by said utility meter, its utility meter identifier, the destination data concentrator identifier and the management center identifier. Then, on the basis of several metering data measurements, a metering counter differential consumption value is calculated by difference of two metering counter consumption indexes measured by the utility meter within a time period interval. Then, a report containing at least the metering counter differential consumption value is sent from the destination data concentrator towards the utility management center to which said utility meter is associated.
    Type: Grant
    Filed: July 6, 2023
    Date of Patent: December 3, 2024
    Assignee: NAGRAVISION SARL
    Inventors: Joel Wenger, Corinne Le Buhan