Abstract: A trusted device, such as a wristwatch, is provided with authentication circuitry, used to perform an authentication operation to switch the trusted device into an authenticated state. Retention monitoring circuitry monitors the physical possession of the trusted device by the user following the authentication operation and switches the trusted device out of an authenticated state if the trusted device does not remain in the physical possession of the user. While the trusted device remains in the physical possession of the user, communication triggering circuitry is used to detect a request to establish communication with a target device that is one of a plurality of different target devices and communication circuitry is used to communicate with that target device using an authenticated identity of the user.

Abstract: Technology for operating a data-source device for assembling a data stream compliant with a data stream constraint. The technology comprises acquiring a plurality of data items by accessing data in a memory and/or transforming data. Prior to completion of the accessing data in a memory, an accessor is selected based on an estimate of access constraint. Prior to completion of the transforming data, a transformer is selected based on an estimate of transformation constraint, wherein the transportation constraint comprises any data acquisition constraint. The access and transformation constraints are dependent upon system state it the data-source system. The data items are positioned in the data stream, and, responsive to achieving compliance with the data stream constraint, the data strewn is communicated.

Abstract: An optical cable comprises a group of optical modules. Each of the optical modules comprises a strength member, a plurality of optical fibers arranged about the strength member, the plurality of optical fibers being arranged substantially on a circumference concentric with the strength member, and a retaining element arranged about the plurality of optical fibers. The strength member is covered by a coating, and the plurality of optical fibers are at least partly embedded within the coating. The optical cable comprises an outer sheath around the group of optical modules. The optical cable does not have a central strength member.

Abstract: A wrist-worn device clasp that secures a strap of the wrist-worn device. A first mechanical part of the wrist worn device interlocks with a second mechanical part by motion in a first plane in order to resist motion perpendicular to said first plane. The first mechanical part also inhibits a first securing part and a second securing part being separated by tension along the strap substantially perpendicular to the first plane when the first mechanical part and second mechanical part are engaged with each other. The first securing part and the second securing part inhibit separation of the first mechanical part and the second mechanical part by motion parallel to the first plane when they are engaged with each other by motion perpendicular to the first plane.

Abstract: An apparatus and method for detecting a change in electrical properties in a system is disclosed. Embodiments of the disclosure enable the detection of a change in electrical properties in a system by, in response to a load generated on a power delivery network power in at least part of the system, measuring noise induced in the power delivery network in response to the load. Based on the measured noise, a dynamic-response property of the power delivery network is determined and the dynamic-response property is compared to a stored reference dynamic-response property of the power delivery network based on a predetermined load. In the event of a difference between the dynamic-response property and the reference dynamic-response property, a response to the event is triggered to indicate tampering with the power delivery network.

Abstract: A fluid delivery control device comprising; (i) at least one inlet portal to allow fluid passage into a chamber; (ii) at least one outlet portal to allow fluid passage from the chamber; (iii) at least one biosensor; (iv) at least one actuator; and wherein the at least one biosensor is in fluid communication with said fluid and is associated with a valve having actuator capability, the valve having actuator capability being in communication with sensor measured conditions upon which the valve permits or inhibits delivery of the fluid from the chamber.

Abstract: An optical cable comprising an optical core and an external sheath surrounding the optical core, wherein the external sheath comprises an inner layer circumferentially enclosing the optical core and an outer layer circumferentially enclosing the inner layer and comprising at least one longitudinal cavity accessible from outside the external sheath and extending through at least a portion of the outer layer thickness. The inner and outer layers of the external sheath are made of a first material having a first tensile strength, while the cavities in the outer layer are filled with a second material having a second tensile strength lower than the first tensile strength.

Abstract: An apparatus and system for remote attestation of a power delivery network is disclosed. Embodiments of the disclosure enable remote attestation of the power delivery network by storing a trusted golden reference waveform in secure memory. The trusted golden reference waveform characterizes a power delivery network in response to a load generated on the power delivery network. A remote cloud server generates a server-generated remote attestation of the power delivery network by receiving an attestation packet from the power delivery network and verifying whether the attestation packet is consistent with an expected power delivery network identity.

Abstract: According to the present techniques there is provided a data processing device, for applying to packaging, the device having a flexible substrate, the flexible substrate comprising: storage circuitry to store device data therein; processing circuitry to process the device data; and communication circuitry to communicate with a remote resource to transmit the device data thereto; sensor circuitry to generate sensed device data, and wherein the device is configured to store the sensed device data in the storage circuitry, process the sensed device data and/or transmit the sensed device data to a remote resource.

Abstract: A method and authenticator for authenticating a device in a system using the electrical properties of the device is disclosed. Embodiments of the disclosure enable authentication by receiving a plurality of input seed values from a requestor. For each input seed value, load stimuli are generated to produce an electrical load sequence on a power delivery network powering at least part of the system. Noise induced in the power delivery network is measured in response to the electrical load sequence using one or more sensors located on the power delivery network. Based on the measured noise, a dynamic response property (magnitude and phase response as a function of frequency) of the power delivery network corresponding to a respective input seed value can be determined and returned to the requestor.

Abstract: A system for automatically ascertaining the location of wireless functional devices, such as lights and switches, in a building. Information from the devices is generated by receipt of electromagnetic signals from other devices, to calculate a best fit for the relative location of the devices in relation to each other. Preferably a map of the building is adduced to refine the location process, for instance by tying the location of a light switch to a wall or a light to a ceiling. The information is used to ascertain that, for example, two devices are in the same room and can be associated with each other. Account can be taken of variable features of the building such as partition walls, to update device settings. There is thus no need to survey the building manually.

Abstract: A method of identifying an object within an environment is described for capturing visual data associated with the environment and comparing data defining a candidate object in the environment with an object data store storing object templates providing data pertaining to one or more objects; responsive to matching the data defining the candidate object in the environment and an object template, identifying the candidate object; and responsive to failing to match data representing the candidate object in the environment with an object template, identifying one or more object identifiers disposed in the environment to define identifier search data, and using the identifier search data to interrogate a further object data store to identify the candidate object.

Abstract: A method for determining when a device is attached to a user, the method comprising activating an accelerometer provided at the device; activating a vibration motor provided at the device; measuring with the accelerometer vibrations at the device created by the vibration motor; and using the accelerometer measurements to determine whether the device is attached to the user.

Abstract: A data processing system operates in a plurality of modes including a first privilege mode and a second privilege mode with the first privilege mode giving rights of access that are not available in the second privilege mode. Application code executes in the second privilege mode and generates function calls to hypervisor code which executes in the first privilege mode. These function calls are to perform a secure function requiring the rights of access which are only available in the first privilege mode. Scheduling code which executes in the second privilege mode controls scheduling of both the application code and the hypervisor code. Memory protection circuitry operating with physical addresses serves to control access permissions required to access different regions within the memory address space using configuration data which is written by the hypervisor code.

Abstract: A data processing system and method of operating such a data processing system are disclosed. The data processing system comprises an interface for communication between a first module and a second module and compensation parameter storage to store at least one stored compensation parameter for application in operation of the interface and representing an expected physical state of the interface. Measurement circuitry measures a current physical state of the interface and generates at least one measured compensation parameter which is dependent on that current physical state. Monitoring circuitry receives the at least one measured compensation parameter and compares it against at least one stored compensation parameter representing the expected physical state of the interface and may initiate a defensive response in the system when the at least one measured compensation parameter differs by more than a threshold difference from the at least one stored compensation parameter.

Abstract: A data processing system operates in a plurality of modes including a first privilege mode and a second privilege mode with the first privilege mode giving rights of access that are not available in the second privilege mode. Application code executes in the second privilege mode and generates function calls to hypervisor code which executes in the first privilege mode. These function calls are to perform a secure function requiring the rights of access which are only available in the first privilege mode. Scheduling code which executes in the second privilege mode controls scheduling of both the application code and the hypervisor code. Memory protection circuitry operating with physical addresses serves to control access permissions required to access different regions within the memory address space using configuration data which is written by the hypervisor code.

Abstract: In one embodiment, an optical cable, which is a flat drop cable, includes a cavity shaped in the form of a stadium in a sectional view of the optical cable. The cable further includes an outer sheath enclosing the cavity, a first strength member, and a first optical fiber element disposed in the cavity. The first optical fiber element includes an optical fiber and has an oscillating pattern within the cavity on an oscillation plane parallel to a longitudinal plane of the cable. The height of the cavity in the sectional view substantially corresponds to a height of the first optical fiber element.

Abstract: An optical cable comprises a group of optical modules. Each of the optical modules comprises a strength member, a plurality of optical fibers arranged about the strength member, the plurality of optical fibers being arranged substantially on a circumference concentric with the strength member, and a retaining element arranged about the plurality of optical fibers. The strength member is covered by a coating, and the plurality of optical fibers are at least partly embedded within the coating. The optical cable comprises an outer sheath around the group of optical modules. The optical cable does not have a central strength member.

Abstract: An optical cable comprising an optical core and an external sheath surrounding the optical core, wherein the external sheath comprises an inner layer circumferentially enclosing the optical core and an outer layer circumferentially enclosing the inner layer and comprising at least one longitudinal cavity accessible from outside the external sheath and extending through at least a portion of the outer layer thickness. The inner and outer layers of the external sheath are made of a first material having a first tensile strength, while the cavities in the outer layer are filled with a second material having a second tensile strength lower than the first tensile strength.

Abstract: An apparatus, system and method for establishing a transaction between first and second parties including a first signing step in which a transaction message including a request and a transaction identifier is cryptographically signed by the first party to form a first cryptographically signed message. The first signed message is transmitted from the first party to the second party. The second party then cryptographically signs the first message to form a second cryptographically signed message. The second message is also transmitted from one or more of a plurality of parties having the second message to a trusted third party. The trusted third party is able to verify that the second message was cryptographically signed by the second party and can also verify that the first message in the second message was cryptographically signed by the first party.