Sypris Electronics, LLC

Analog Devices,inc.

Michael J Duren

John J Walsh

Hal A Aldridge

John Ross Wallrabenstein

A resilient device authentication system for use with one or more managed devices each including a physical unclonable function (PUF), comprises: one or more verification authorities (VA) each including a processor and a memory loaded with a complete verification set (CVS) that includes hardware part-specific data associated with the managed devices' PUFs and metadata, the processor configured to create a limited verification set (LVS) through one-way algorithmic transformation of hardware part-specific data together with metadata from the loaded CVS so as to create a LVS representing both metadata and hardware part-specific data adequate to redundantly verify all of the hardware parts associated with the LVS; and one or more provisioning entities (PE) each connectable to a VA and including a processor and a memory loaded with a LVS, and configured to select a subset of the LVS so as to create an application limited verification set (ALVS). The system may also comprise one or more device management systems each connectable to a PE and to managed devices and including a memory configured to store an ALVS. The VA may also be configured to create a replacement LVS.

Resilient device authentication system with metadata binding

A resilient device authentication system comprising: one or more verification authorities (VAs) including a memory loaded with a complete verification set that includes hardware part-specific data, and configured to create a limited verification set (LVS) therefrom; one or more provisioning entities (PEs) each connectable to at least one of the VAs, including a memory loaded with a LVS, and configured to select a subset of data therefrom so as to create an application limited verification set (ALVS). Also disclosed is a device for use with an authentication system, comprising: a first hardware part and a second hardware part that are adapted to communicate with and perform authentication on each other; and/or a hardware part that contains two or more chips that are adapted to communicate with and perform authentication on each other.

Resilient device authentication system

A resilient device authentication system and method comprising: one or more verification authorities (VAs) including a memory loaded with a complete verification set that includes hardware part-specific data, and configured to create a limited verification set (LVS) therefrom; one or more provisioning entities (PEs) each connectable to at least one of the VAs, including a memory loaded with a LVS, and configured to select a subset of data therefrom so as to create an application limited verification set (ALVS). Also disclosed is a device comprising a controller, device memory, input/output capable of communicating with the authentication system, and a physically-unclonable function associated with hardware part-specific information corresponding to hardware part-specific data in the loaded CVS. Further disclosed is an authentication system including hardware security modules.

A resilient device authentication system comprising: one or more verification authorities (VAs) including a memory loaded with a complete verification set that includes hardware part-specific data, and configured to create a limited verification set (LVS) therefrom; one or more provisioning entities (PEs) each connectable to at least one of the VAs, including a memory loaded with a LVS, and configured to select a subset of data therefrom so as to create an application limited verification set (ALVS); and one or more device management systems connectable to at least one of the PEs, including a memory loaded with an ALVS, and configured to manage device security-related applications through the performance of security-related functions on devices associated with the hardware part-specific data.

Growing community of inventors

Clearwater, FL, United States of America

Michael J Duren