Proceedings ArticleDOI
Physical unclonable functions for device authentication and secret key generation
G. Edward Suh,Srinivas Devadas +1 more
- pp 9-14
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.read more
Citations
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Journal ArticleDOI
A Highly Reliable and Unbiased PUF Based on Differential OTP Memory
TL;DR: In this article, a differential OTPM-based PUF with a parallel circuit of two OTPMs in series with a resistance was proposed, where a high voltage stochastically produces a breakdown in one of the two OTMs first, which then reduces the voltage drop across the parallel OTPM circuit to prevent further breakdown events.
Journal ArticleDOI
Pervasive, dynamic authentication of physical items
Patent
Grouping of physically unclonable functions
TL;DR: In this article, a physically unclonable function (PUF) includes a plurality of PUF elements to generate an N-bit PUF signature for each bit in the signature, a PUF group of K number of individual PUF values indicating a single-bit value is used to generate a group bit.
Journal ArticleDOI
Highly Independent MTJ-Based PUF System Using Diode-Connected Transistor and Two-Step Postprocessing for Improved Response Stability
TL;DR: A novel PUF array that employs a diode-connected transistor and a shared access transistor, that achieves the highest independence and the lowest maximum bit error rate under temperature and supply-voltage variations compared with conventional PUF systems that exploit independent variation sources.
Proceedings ArticleDOI
Lightweight obfuscation techniques for modeling attacks resistant PUFs
TL;DR: This study proposes an obfuscation technique during post-processing of Strong-PUF responses to increase the resilience against machine learning attacks and finds that it reduces the predictability of the 32-bit Arbiter- PUF to less than 70% and more reduction in predictability has been observed in an XOR Arbiters'PUF.
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
Ross Anderson,Markus G. Kuhn +1 more
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.