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Title: Method, apparatus and system to compensate for drift by physically unclonable function circuitry

Abstract

Techniques and mechanisms to detect and compensate for drift by a physically uncloneable function (PUF) circuit. In an embodiment, first state information is registered as reference information to be made available for subsequent evaluation of whether drift by PUF circuitry has occurred. The first state information is associated with a first error correction strength. The first state information is generated based on a first PUF value output by the PUF circuitry. In another embodiment, second state information is determined based on a second PUF value that is output by the PUF circuitry. An evaluation of whether drift has occurred is performed based on the first state information and the second state information, the evaluation including determining whether a threshold error correction strength is exceeded concurrent with a magnitude of error being less than the first error correction strength.

Inventors:
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1333217
Patent Number(s):
9,501,664
Application Number:
14/570,704
Assignee:
Sandia Corporation (Albuquerque, NM)
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Patent
Resource Relation:
Patent File Date: 2014 Dec 15
Country of Publication:
United States
Language:
English
Subject:
97 MATHEMATICS AND COMPUTING

Citation Formats

Hamlet, Jason. Method, apparatus and system to compensate for drift by physically unclonable function circuitry. United States: N. p., 2016. Web.
Hamlet, Jason. Method, apparatus and system to compensate for drift by physically unclonable function circuitry. United States.
Hamlet, Jason. 2016. "Method, apparatus and system to compensate for drift by physically unclonable function circuitry". United States. https://www.osti.gov/servlets/purl/1333217.
@article{osti_1333217,
title = {Method, apparatus and system to compensate for drift by physically unclonable function circuitry},
author = {Hamlet, Jason},
abstractNote = {Techniques and mechanisms to detect and compensate for drift by a physically uncloneable function (PUF) circuit. In an embodiment, first state information is registered as reference information to be made available for subsequent evaluation of whether drift by PUF circuitry has occurred. The first state information is associated with a first error correction strength. The first state information is generated based on a first PUF value output by the PUF circuitry. In another embodiment, second state information is determined based on a second PUF value that is output by the PUF circuitry. An evaluation of whether drift has occurred is performed based on the first state information and the second state information, the evaluation including determining whether a threshold error correction strength is exceeded concurrent with a magnitude of error being less than the first error correction strength.},
doi = {},
url = {https://www.osti.gov/biblio/1333217}, journal = {},
number = ,
volume = ,
place = {United States},
year = {2016},
month = {11}
}

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