Abstract: A vehicle accessory system includes a tonneau cover to be adaptably disposed onto a vehicle in a first configuration and a second configuration. In the first configuration, the tonneau cover retractably overlaps a cargo area of the vehicle, in which the tonneau cover is attached to a perimeter of the cargo area via an attachment mechanism configured to cause the tonneau cover to extend so as to cover the cargo area and to retract so as to uncover the cargo area. In the second configuration, the tonneau cover detachably couples at a first end portion to a roof of the vehicle, such that a second end portion of the tonneau cover extends outward perpendicularly, relative to the vehicle, so as to at least partially overlap an area underneath the second end portion and alongside the vehicle.

Abstract: Systems and methods for cryptographic key generation at a client and server are disclosed. The client has an array of PUF devices, and the server has an image that PUF. The server sends the client addresses of PUF devices to be measured, and retrieves previously stored responses corresponding to those addresses from its database. The client measures responses at the addresses. Each device hashes the resulting responses, and the server compares the hash received from the client to its own. If the hashes to not match, the server searches for a matching hash be perturbing the measured response bit stream until a match is achieved. The perturbed response bitstream, and the measured response at the client are then salted, and used for key generation.