Hangglider Partners

Other

Analog Devices,inc.

Thomas J Brindisi

John Ross Wallrabenstein

A system and device, including reconfigurable physical unclonable functions ('RPUFs') and threshold cryptography, use cryptographic and physical means of security. A plurality of reconfigurable physical unclonable functions ('RPUFs') and a memory are connected to a processor that is configured to derive information associating the RPUFs with cryptographic shares of a sensitive value, store such information in the memory, and reconfigure a RPUF upon powering up of the device such that information stored in the memory is not valid for the reconfigured RPUF.

System and device including reconfigurable physical unclonable functions and threshold cryptography

Various embodiments enhance security and tamper resistance of device or components having a hardware intrinsic identity. For example, devices or components having PUFs can map challenges and helper values to a secret or share of secret to utilize a local identity in cryptographic operations. A plurality of components having individual identities can be extend so that the plurality of components can enroll into a shared global identity. Shares of the global identity can be distributed among the plurality of components or devices such that at least two devices must provide at least two shares of the global identity (or threshold operations on the at least two shares) to successfully use the global identity. Such sharing mitigates adversarial tampering attack on the global identity. Share refresh protocols can provide additional security, enable introduction of new components or devices to the global identity, and allow removal of existing components or devices.

Device and system with global tamper resistance

A volumetric three-dimensional light-emitting display, comprising an array of elements arranged, as defined by the relative positions of the elements' centerpoints, in a close-packed relationship; and an array of conductors in electrical contact with the array of elements. The array of elements comprises voxels consisting of four elements and capable of producing full-color.

Volumetric three-dimensional display with evenly-spaced elements

An adjustable linear locking assembly, such as may be used in a mounting device or other suitable devices, which assembly allows automatic, substantially continuous adjustment to the linear position of a locking element such as an interface. The assembly may also provide two-way adjustability.

Adjustable mounting device

A device that provides adjustable hanging of an item, such as a picture frame, on a vertical support such as a wall. The hanger may provide for automatic, in situ, and/or substantially continuous vertical adjustment, and/or horizontal adjustment. The adjustable hanger may comprise a first portion affixed to the vertical support, and a second portion that engages with the first portion and fixedly attaches to or is incorporated in the reverse side of the item, with one or both of the aforementioned portions being formed to allow automatic, in situ, continuous vertical adjustment and selective locking with respect to the other portion through a clamp, bias, or similar means; one or both these portions may also be formed to allow horizontal adjustment and repositioning with respect to the other portion. Also disclosed is a device for horizontally extending the available range of mounting positions for items that need to be supported by a stud.

A device that provides automatic, in situ, substantially continuously adjustable mounting of an item on a vertically oriented support, comprising a first portion affixed to the vertical support, and a second portion that fixedly attaches to or is incorporated in the reverse side of the item. One or both of the two portions is formed to allow automatic, in situ, continuous vertical adjustment and repositioning with respect to the other portion, and one or both portions may also be formed to allow horizontal adjustment and repositioning with respect to the other portion. Also, a device for horizontally extending the available range of mounting positions for items that need to be supported by a stud.

A device that provides automatic, in situ, continuously adjustable mounting of an item on a vertical support, comprising a first portion affixed to the vertical support, and a second portion that fixedly or releasably engages with the first portion and fixedly attaches to or is incorporated in the reverse side of the item. One or both of the two portions is formed to allow automatic, in situ, continuous vertical adjustment and repositioning with respect to the other portion, and one or both portions may also be formed to allow horizontal adjustment and repositioning with respect to the other portion. Also, a device for horizontally extending the available range of mounting positions for items that need to be supported by a stud.

Growing community of inventors

Studio City, CA, United States of America

Thomas J Brindisi