Abstract: There is provided a method and a system for authorizing a user device to send a request to a vehicle in order to prevent a physical layer relay attack. The system comprises a vehicle comprising an acoustic transducer and an RF transceiver and a user device comprising an acoustic transducer and an RF transceiver. The method relates to a signaling scheme using a combination of acoustic and RF signals for preventing a successful physical layer relay attack.

Abstract: There is provided a method and a system for authorizing a user device to send a request to a vehicle in order to prevent a physical layer relay attack. The system comprises a vehicle comprising an acoustic transducer and an RF transceiver and a user device comprising an acoustic transducer and an RF transceiver. The method relates to a signaling scheme using a combination of acoustic and RF signals for preventing a successful physical layer relay attack.

Abstract: There is provided a method and a system for authorizing a user device to send a request to a vehicle in order to prevent a physical layer relay attack. The system comprises a vehicle comprising an acoustic transducer and an RF transceiver and a user device comprising an acoustic transducer and an RF transceiver. The method relates to a signaling scheme using a combination of acoustic and RF signals for preventing a successful physical layer relay attack.

Abstract: A method performed by a vehicle system for handling parameters associated with surroundings of a vehicle. The vehicle system obtains information indicating a first parameter associated with the surroundings of the vehicle and sensed by at least one low power sensor. The low power sensor is associated with the vehicle. The vehicle system triggers startup of at least one high power sensor when the first parameter has fulfilled a criteria. The high power sensor consumes a larger amount of power than the low power sensor, and the high power sensor is associated with the vehicle or another vehicle. The vehicle system obtains information indicating at least a second parameter associated with the surroundings of the vehicle and sensed by the high power sensor.

Abstract: A method and system for guiding a self-driving vehicle. The vehicle comprises an ultrasound-based proximity sensing system. The method comprises determining a location and an orientation of the vehicle in a predetermined coordinate system; in the vehicle, receiving a predetermined route from the traffic control unit; by a vehicle control unit, controlling the vehicle to travel along the predetermined route while estimating a vehicle travel path; receiving an ultrasound signal from a beacon having a known location in the predetermined coordinate system, wherein the ultrasound signal transmitted by the beacon uniquely identifies the beacon location; determining a relative position of the vehicle in relation to the beacon by means of ultrasound signals transmitted between the beacon and the vehicle; and determining a location of the vehicle in the predetermined coordinate system based on the determined relative position of the vehicle and the known location of the beacon.

Abstract: There is provided a method and a system for authorizing a user device to send a request to a vehicle in order to prevent a physical layer relay attack. The system comprises a vehicle comprising an acoustic transducer and an RF transceiver and a user device comprising an acoustic transducer and an RF transceiver. The method relates to a signaling scheme using a combination of acoustic and RF signals for preventing a successful physical layer relay attack.

Abstract: There is provided a method and a system for authorizing a user device to send a request to a vehicle in order to prevent a physical layer relay attack. The system comprises a vehicle comprising an acoustic transducer and an RF transceiver and a user device comprising an acoustic transducer and an RF transceiver. The method relates to a signaling scheme using a combination of acoustic and RF signals for preventing a successful physical layer relay attack.

Abstract: A method performed by a vehicle system for handling parameters associated with surroundings of a vehicle. The vehicle system obtains information indicating a first parameter associated with the surroundings of the vehicle and sensed by at least one low power sensor. The low power sensor is associated with the vehicle. The vehicle system triggers startup of at least one high power sensor when the first parameter has fulfilled a criteria. The high power sensor consumes a larger amount of power than the low power sensor, and the high power sensor is associated with the vehicle or another vehicle. The vehicle system obtains information indicating at least a second parameter associated with the surroundings of the vehicle and sensed by the high power sensor.

Abstract: An arrangement for unlocking a vehicle with a user equipment, including an electronic information reader module for reading authenticity information from a passive tag of the user equipment, said passive tag being powered by inducing a voltage therein, wherein the arrangement is configured for running a first authentication protocol via the reader module and the passive tag, a charging device for charging the user equipment, wherein the charging device is located in a closeable space of the vehicle being closeable by at least one lockable lid, wherein the at least one lockable lid is configured to be unlocked when the reader module and the passive tag are in communicative contact and when the arrangement has verified an authenticity of the passive tag, and wherein the arrangement is configured to run an additional authentication protocol with the user equipment for unlocking at least one door of the vehicle.

Abstract: An arrangement for unlocking a vehicle with a user equipment, including an electronic information reader module for reading authenticity information from a passive tag of the user equipment, said passive tag being powered by inducing a voltage therein, wherein the arrangement is configured for running a first authentication protocol via the reader module and the passive tag, a charging device for charging the user equipment, wherein the charging device is located in a closeable space of the vehicle being closeable by at least one lockable lid, wherein the at least one lockable lid is configured to be unlocked when the reader module and the passive tag are in communicative contact and when the arrangement has verified an authenticity of the passive tag, and wherein the arrangement is configured to run an additional authentication protocol with the user equipment for unlocking at least one door of the vehicle.

Abstract: A method and system for guiding a self-driving vehicle. The vehicle comprises an ultrasound-based proximity sensing system. The method comprises determining a location and an orientation of the vehicle in a predetermined coordinate system; in the vehicle, receiving a predetermined route from the traffic control unit; by a vehicle control unit, controlling the vehicle to travel along the predetermined route while estimating a vehicle travel path; receiving an ultrasound signal from a beacon having a known location in the predetermined coordinate system, wherein the ultrasound signal transmitted by the beacon uniquely identifies the beacon location; determining a relative position of the vehicle in relation to the beacon by means of ultrasound signals transmitted between the beacon and the vehicle; and determining a location of the vehicle in the predetermined coordinate system based on the determined relative position of the vehicle and the known location of the beacon.

Abstract: There is provided a method and a system for authorizing a user device (102) to send a request to a vehicle (104) in order to prevent a physical layer relay attack. The system comprises a vehicle comprising an acoustic transducer (106) and an RF transceiver (108) and a user device comprising an acoustic transducer and an RF transceiver. The method relates to a signaling scheme using a combination of acoustic and RF signals for preventing a successful physical layer relay attack.

Abstract: Imposing one or more usage constraints on digital content involves communicating a digital content data item to a digital content receiver system. The digital content data item includes the digital content and a usage constraint data item different from a digital license data item, or a reference to the usage constraint data item, the use case item being indicative of the one or more usage constraints.

Abstract: A method in a first device for anonymously delivering data to a part that has initiated a task is provided. The first device and the part initiating a task are participants in opportunistic sensing. The method comprises creating a data sample and encrypting the data sample with a public key of the task initiating part. After communicating the protected sample toone or more intermediate devices, one of the one or more intermediate devices delivers the protected sample to the task initiating part, such that the task initiating part does not know the identity of the first device. The task initiating device only know the identity of the one of the one or more intermediate devices that delivered the protected sample to the task initiating part, wherein the intermediate devices are participants in the opportunistic sensing.

Abstract: A service provider node (101), and a method therein, for transmitting data packets relating to parts of a service to a communication device (102). The service provider node and the communication device are communicatively connected over a communications network (104) and comprised in a communications system (100). The method comprises receiving (205, 302) a signal (S1), which signal comprises an identifier of the communication device requesting a service, an identifier of the requested service, and an agreement comprising information about a previously agreed part of the service. The method comprises further agreeing (303) on an upcoming part of the service requested by the communication device, while transmitting (206, 304) data packets relating to the previously agreed part of the service to the communication device, wherein the data packets are transmitted in dependence of the received signal.

Abstract: The embodiments of the present invention relate to apparatuses, in terms of a client device (110) and a server (120) and to methods in the client device (110) and in the server (120) respectively for enabling a user to consume content provided by a content provider. According to the method in the client device (120) the method comprises: assembling a request for rights for consuming a content and indicating in the request which content to consume; determining if an upgrade key, associated with the content, is present in the client device; including, in such a case, in the request, an identifier of the upgrade key that is associated with the content, sending the request to the content provider; receiving, a response comprising an encrypted rights object; decrypting the encrypted rights object and starting to use the rights object for consuming the content.

Abstract: The embodiments of the present invention relate to apparatuses, in terms of a client device (110) and a server (120) and to methods in the client device (110) and in the server (120) respectively for enabling a user to consume content provided by a content provider. According to the method in the client device (120) the method comprises: assembling a request for rights for consuming a content and indicating in the request which content to consume; determining if an upgrade key, associated with the content, is present in the client device; including, in such a case, in the request, an identifier of the upgrade key that is associated with the content, sending the request to the content provider; receiving, a response comprising an encrypted rights object; decrypting the encrypted rights object and starting to use the rights object for consuming the content.

Abstract: A method for imposing one or more usage constraints on digital content, the method comprising communicating a digital content data item to a digital content receiver system; wherein the digital content data item includes the digital content and a usage constraint data item different from a digital license data item, or a reference to said usage constraint data item, the use case item being indicative of the one or more usage constraints.

Abstract: Methods and apparatus for securely streaming multimedia packets, such as RTP packets, are disclosed, in which the payloads of the packets are shuffled. This reordering is performed using a shuffling function that depends on sequence numbers associated with each of the packets, a pre-determined group size N, and a pre-determined initialization value; in some embodiments this shuffling function comprises a cryptographic hashing function or other one-way function. A receiving device may reverse the shuffling, using a similar shuffling function, if the pre-determined group size N and the pre-determined initialization value are known.

Abstract: Disclosed is a method and a system for rendering content on external devices securely. The method comprises setting up a communication channel between a proxy rendering server of a mobile device and an external rendering server of an external device, authenticating at least the external rendering server and upon successful authentication transferring a key from the proxy rendering server to the external rendering server, transferring the content encrypted with the transferred key from the proxy rendering server to the external rendering server for rendering the content, wherein the rendering of the content is performed in one of two modes, either in a preprocessing mode or in a non-preprocessing mode, and wherein a DRM agent is only present in the mobile device.