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Proceedings ArticleDOI

Physical unclonable functions for device authentication and secret key generation

TLDR
This work presents PUF designs that exploit inherent delay characteristics of wires and transistors that differ from chip to chip, and describes how PUFs can enable low-cost authentication of individual ICs and generate volatile secret keys for cryptographic operations.
Abstract
Physical Unclonable Functions (PUFs) are innovative circuit primitives that extract secrets from physical characteristics of integrated circuits (ICs). We present PUF designs that exploit inherent delay characteristics of wires and transistors that differ from chip to chip, and describe how PUFs can enable low-cost authentication of individual ICs and generate volatile secret keys for cryptographic operations.

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Citations
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Proceedings ArticleDOI

XOR gate based low-cost configurable RO PUF

TL;DR: An XOR-gate-based configurable Ring Oscillator (RO) PUF (denoted as XCRO PUF) is presented, which shows better uniqueness and reliability than other PUF designs and consumes only 12.5% of the hardware resources to generate a 1-bit response.
Book ChapterDOI

FPGA time-bounded unclonable authentication

TL;DR: A suite of new authentication protocols that take into account non-triviality of bitstream reverse-engineering in addition to the FPGA's unprecedented speed in responding to challenges are introduced.
Journal ArticleDOI

CMOS Optical PUFs Using Noise-Immune Process-Sensitive Photonic Crystals Incorporating Passive Variations for Robustness

TL;DR: This paper introduces a new design methodology for incorporating process-sensitive optical nanostructures in standard CMOS processes to create robust optical physically unclonable functions (PUFs) realized through an electrical-photonic co-design approach.
Journal ArticleDOI

End to end light weight mutual authentication scheme in IoT-based healthcare environment

TL;DR: The proposed end to end mutual authentication scheme makes use of PDA or a smartphone as a gateway node enabling continuous monitoring of the patient even in a nonclinical environment and shows that the proposed scheme is more efficient compared with other related schemes.
Journal ArticleDOI

Unclonable Optical Fiber Identification Based on Rayleigh Backscattering Signatures

TL;DR: This robust, reliable, and flexible OFID method has great potential for a variety of applications, such as security, recognition, encryption, identification, and authentication.
References
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Journal ArticleDOI

Physical one-way functions

TL;DR: The concept of fabrication complexity is introduced as a way of quantifying the difficulty of materially cloning physical systems with arbitrary internal states as primitives for physical analogs of cryptosystems.
Proceedings ArticleDOI

Silicon physical random functions

TL;DR: It is argued that a complex integrated circuit can be viewed as a silicon PUF and a technique to identify and authenticate individual integrated circuits (ICs) is described.

Tamper resistance: a cautionary note

TL;DR: It is concluded that trusting tamper resistance is problematic; smartcards are broken routinely, and even a device that was described by a government signals agency as 'the most secure processor generally available' turns out to be vulnerable.
Journal ArticleDOI

Extracting secret keys from integrated circuits

TL;DR: It is shown that arbiter-based PUFs are realizable and well suited to build key-cards that need to be resistant to physical attacks and to be identified securely and reliably over a practical range of environmental variations such as temperature and power supply voltage.
Journal ArticleDOI

Impact of die-to-die and within-die parameter fluctuations on the maximum clock frequency distribution for gigascale integration

TL;DR: In this paper, a model describing the maximum clock frequency distribution of a microprocessor is derived and compared with wafer sort data for a recent 0.25-/spl mu/m microprocessor.
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