Brivo Systems, Inc.

Steven Mark Bryant

Hsin-Cheng Chiu

Dean M Drako

Steven Van Till

Eoin Cosgrave

John Szczygiel

A physical access control system enables acceptable portal entry codes upon receiving each physical access request by operating on the elapsed time from a previous physical access request to generate a temporal credential. The controller receives a plurality of physical access requests from a plurality of mobile application devices. Upon authenticating the first access request, the controller eliminates repetition from the space of acceptable successor requests from each mobile application device. Monotonic nonces advance the range of temporal code matches. Entry code generation is decentralized to distributed application devices and is inherently unknowable until a successor access request is initiated by the same application device.

Distributed one-time-use entry code generation for physical access control method of operation and mobile systems

A personal electronic device enables access to and occupancy of a secure space by providing measures of behaviors, personal attributes, history of transactions and movements that are used to validate continuous authentication and authorization of the device's possessor. This addresses the vulnerability of a misplaced, lost, or stolen electronic credential. An anchor point is a physical measurement of personal physical identity such as voice recognition, fingerprint, iris scan, chemistry, or other biometric. Continuity from an anchor point is measured by GPS way points, financial transactions at familiar vendors, outgoing text messages or passphrases, gait analysis, heart rate, EKG rhythm, or transit time. A request for access is presented upon a challenge based on proximity to a portal location. A digital credential is used to encrypt two or more of the continuity milestones and an anchor point which can be matched against a previously stored or dynamically generated expected value.

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Sterling, VA, United States of America

Steven Mark Bryant