AUTHENTICATION SYSTEM AND DEVICE INCLUDING PHYSICAL UNCLONABLE FUNCTION AND THRESHOLD CRYPTOGRAPHY

AUTHENTICATION SYSTEM AND DEVICE INCLUDING PHYSICAL UNCLONABLE FUNCTION AND THRESHOLD CRYPTOGRAPHY

A device comprising: a physical unclonable function (PUF) device configured to generate an output value based on hardware characteristics of the PUF device; and a processor connected to the PUF device, the processor configured to: execute a cryptographic operation in a sequence of ordered stages inc...

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1. Verfasser: Wallrabenstein, John Ross
Format: Patent
Sprache:eng
Schlagworte:
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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creator Wallrabenstein, John Ross
description A device comprising: a physical unclonable function (PUF) device configured to generate an output value based on hardware characteristics of the PUF device; and a processor connected to the PUF device, the processor configured to: execute a cryptographic operation in a sequence of ordered stages including a first stage and a second stage, the executing comprising: in the first stage: recovering a first secret value based on a first output value obtained from the PUF device; executing a first sub-operation using the first secret value; and removing unobscured values from memory prior to execution of a subsequent stage; in the second stage: recovering a second secret value based on a second output value obtained from the PUF device; and executing a second sub-operation using the second secret value to enable execution of a cryptographic operation encoded with at least the first secret value and the second secret value.
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subjects ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
title AUTHENTICATION SYSTEM AND DEVICE INCLUDING PHYSICAL UNCLONABLE FUNCTION AND THRESHOLD CRYPTOGRAPHY
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