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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

Circuit-level techniques for reliable Physically Uncloneable Functions

TL;DR: Therefore, apart from architectural optimizations, circuit level considerations like supply voltage and body bias can improve the reliability of PUFs.
Book ChapterDOI

An attack on PUF-Based session key exchange and a hardware-based countermeasure: erasable PUFs

TL;DR: It is argued that Erasable PUFs could be implemented securely via ALILE-based crossbar structures due to the observed security issue in protocols for session key exchange that are based on Strong Physical Unclonable Functions.
Proceedings ArticleDOI

PCKGen: A Phase Change Memory based cryptographic key generator

TL;DR: A novel design of dynamically reconfigurable PUF based on Phase Change Memory (PCM) technology to yield refreshed cryptographic keys whenever the need arises to achieve enhanced security is proposed.
Journal ArticleDOI

Reliable Physical Unclonable Functions Using Data Retention Voltage of SRAM Cells

TL;DR: This paper enables DRV PUFs by proposing a DRV-based hash function that is insensitive to temperature, and introduces a new circuit-level reliability knob as an alternative to error correcting codes.
Proceedings ArticleDOI

Structural transformation for best-possible obfuscation of sequential circuits

TL;DR: It is proved that any best-possible obfuscation of a sequential circuit can be accomplished by a sequence of four operations: retiming, resynthesis, sweep, and conditional stuttering.
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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