Abstract: An apparatus including interface circuitry configured to read, from a sensor, event data indicating an event detected by the sensor and identification data indicating a first identifier (ID) of a user involved in the event. The first interface circuitry is further configured to generate a data stream comprising at least the event data and the identification data. Additionally, the apparatus includes processing circuitry configured to generate an updated data stream based on the data stream by updating the first ID to a second ID using a deterministic update function, and by adding noise to at least the event data. The processing circuitry is further configured to determine whether sufficient privacy budget is left for the updated data stream, and, if so, generate encrypted data by encrypting the updated data stream. The apparatus includes second interface circuitry configured to output the encrypted data for transmission to an external data aggregator.

Abstract: The present disclosure relates to a method for sharing data with at least one user, wherein the data is legally owned by a data owner and to be published by a data publisher. The method comprises deriving, by the data owner, a publisher key based on an owner key held by the data owner and providing the publisher key to the data publisher. Further, the method includes deriving, by the data publisher, a symmetric access key based on the publisher key and at least one attribute of a subset of the data and encrypting the subset with the symmetric access key. The method further comprises deriving, by the data owner, the symmetric access key based on the owner key and the attribute, and providing the symmetric access key to the user to enable the user to decrypt using the symmetric access key the subset encrypted by the data publisher.

Abstract: Examples relate to a query handler apparatus, query handler method and corresponding computer program, and to a system comprising such a query handler apparatus. The query handler device comprises at least one interface configured to communicate with a requester device and with a plurality of data provider devices. The query handler device comprises processing circuitry configured to obtain a request for data from the requester device. The processing circuitry is configured to determine an access policy for the requester device. The processing circuitry is configured to forward the request with information on the access policy to the plurality of data provider devices, to instruct the plurality of data provider devices to provide the data to the requester device according to the access policy.

Abstract: Examples relate to sound processing devices, to corresponding methods and computer programs for sound processing devices, and to devices, such as mobile devices or hearing aids, comprising a sound processing device. A sound processing device comprises at least one interface for communicating with one or more further sound processing devices. The sound processing device comprises processing circuitry, configured to obtain a sound processing model. The processing circuitry is configured to receive, from the one or more further sound processing devices, one or more local adjustments to the sound processing model determined by the one or more further sound processing devices based on sound recorded locally by the one or more further sound processing devices. The processing circuitry is configured to adjust the sound processing model based on the one or more local adjustments. The processing circuitry is configured to process sound recorded locally by the sound processing device using the sound processing model.

Abstract: The present disclosure relates to a method for sharing encrypted data comprising encrypting first data with at least one first attribute. The first attribute satisfies a first access policy of a first cryptographic key to enable one or more first users holding the first cryptographic key to decrypt the encrypted first data using the first cryptographic key. The method also comprises encrypting second data with at least one second attribute of the second data. The method further provides for generating a second cryptographic key based on a second access policy including at least one logical connective of the first attribute and the second attribute for decrypting the encrypted first data and the encrypted second data using the second cryptographic key and providing the second cryptographic key to one or more second users to enable the second users to decrypt the encrypted first data and the encrypted second data.

Abstract: An apparatus for verifying an integrity of a device connected to a telecommunication network. The apparatus comprises at least one transceiver configured to broadcast a signal to the device via a non-network channel outside the telecommunication network for causing the device to provide a response to the signal depending on the integrity of the device. Further, the apparatus comprises an attestation server configured to receive the device's response and verify the integrity of the device depending on the device's response.

Abstract: A method and a head-mounted device for triggering an action with relation to a selected object in a field of view of a user comprising detecting a pre-defined brain activity pattern of the user using a brain activity sensor of a head-mounted device worn by the user. The pre-defined brain activity pattern expresses a user command to select an object on which a gaze of the user is focused. The method comprises determining a direction of the gaze of the user at a time of the detection of the pre-defined brain activity pattern. The method comprises capturing an image of the field of view of the user at the time of the detection of the pre-defined brain activity pattern. The method comprises providing at least a part of the image to a computing entity, to cause the computing entity to trigger the action with relation to the selected object.