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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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Journal ArticleDOI

Unified Analog PUF and TRNG Based on Current-Steering DAC and VCO

TL;DR: This work presents a unified weak physical unclonable function (PUF) and a true random number generator (TRNG) based on the current-steering digital-to-analog converter (DAC) and ring voltage-controlled oscillator (VCO).
Proceedings ArticleDOI

Physically unclonable functions for embeded security based on lithographic variation

TL;DR: Novel PUF circuits designed to exploit inherent fluctuations in physical layout due to photolithography process to implement lithography-based physically unclonable functions (litho-PUFs).
Book ChapterDOI

Side-Channel Assisted Modeling Attacks on Feed-Forward Arbiter PUFs Using Silicon Data

TL;DR: This work takes a closer look at the vulnerability of feed-forward arbiter PUFs towards a combined side-channel and modeling attack using data measured from the authors' 32nm test chips.
Proceedings ArticleDOI

Crossover Ring Oscillator PUF

TL;DR: The basic idea is to implement one-to-one input-output mapping with Lookup Table (LUT)-based interstage crossing structure in each level of inverters to improve flexibility and reliability and reduce hardware overheads.
Journal ArticleDOI

E2LEMI:Energy-Efficient Logic Encryption Using Multiplexer Insertion

TL;DR: This paper proposes to insert the multiplexer (MUX) with two cases: (i) the authors randomly insert MUXs equal to half of the output bit number (half MUX insertions); and (ii) they insertMUXsequal to the number of output bits (full MUXinsertions).
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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