System and device for verifying the integrity of a system from its subcomponents
AssigneeSypris Electronics, LLC
InventorsDouglas J. Gardner, John J. Walsh, John Ross Wallrabenstein
Life of this patent
Estimating the term…
Abstract
A system and device for verifying the integrity of a system from its components, the system comprising a plurality of components each having a physical state, the system and the device comprising a processor that is connected to each of the components, the processor configured to verify systemic integrity by performing verification on some or all specified components. The verification may be individual (1, 1) or threshold (n, 1), and may be interactive or non-interactive.
Claims20
A device for verifying the integrity of a system comprising a plurality of components each having a physical state and a physical unclonable function (‘PUF’) including a PUF input and a PUF output and constructed to generate, in response to the input of a specific challenge, an output value that is characteristic to
- i) the PUF,
- ii) the component's physical state, and
- iii) the specific challenge;
- the device comprising a memory, and a processor connected to each of the components and configured to verify systemic integrity by performing verification on all or some specified components.
A system of components configured to attest integrity of the system to a verifying device, each component having a physical state and comprising:
- a) a physical unclonable function (‘PUF’) including a PUF input and a PUF output and constructed to generate, in response to the input of a specific challenge, an output value that is characteristic to
- i) the PUF,
- ii) the component's physical state, and
- iii) the specific challenge;
- and
- b) a processor connected to the PUF and configured to, in response to a verification request from the verifying device, provide an input to the PUF input and receive a response from the PUF output, and convey to the verifying device a share of a joint threshold proof.
Dependencies are inferred from the claim text.