A Systematic Approach for Internal Entropy Boosting in Delay-based RO PUF on an FPGA

Aguirre, Abby; Hall, Michael; Lim, Timothy; Trinh, Jonathan; Yan, Wei; Tehranipoor, Fatemeh

doi:10.1109/mwscas48704.2020.9184468

Cited by 7 publications

(3 citation statements)

References 9 publications

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“…To increase the number of response bits produced by the PUF, the concept of duplicating one-bit response PUF instances can be used [17]. It assumes multiple, parallel-connected RO PUF submodules, whose number depends on the number of expected bits in a response.…”

Section: Lightweight Ro Puf Conceptmentioning

confidence: 99%

Lightweight Strong PUF for Resource-Constrained Devices

Korona,

Giermakowski,

Biernacki

et al. 2024

Electronics

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Physical Unclonable Functions are security primitives that exploit the variation in integrated circuits’ manufacturing process, and, as a result, each instance processes applied stimuli differently. This feature can be used to provide a unique fingerprint of the electronic device, or as an interesting alternative to classic key storage methods. Due to their nature, they are often considered an element of the Internet of Things nodes. However, their application heavily depends on resource consumption. Lightweight architectures are proposed in the literature but are technology-dependent or still introduce significant hardware overhead. This paper presents a lightweight, Strong PUF based on ring oscillator architecture, which offers small hardware overhead and sufficient security levels for resource-constrained Internet of Things devices. The PUF design utilizes a Linear Feedback Shift Register-based scramble module to generate many challenge–response pairs from a small number of ring oscillators and a control module to manage the response generation process. The proposed PUF can be used as a Weak PUF for key generation or a Strong PUF for device authentication.

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Section: Lightweight Ro Puf Conceptmentioning

confidence: 99%

Lightweight Strong PUF for Resource-Constrained Devices

Korona,

Giermakowski,

Biernacki

et al. 2024

Electronics

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“…Conventional delay-based PUFs generate responses by comparing the size of the delay deviation between two symmetric delay paths. When the deviation between the two is more significant, the responses of the PUF become more stable [20], [21]. We use a new architecture in which a weak PUF on the PCB is combined with a strong PUF inside the chip to generate the response.…”

Section: Reliability Self-testmentioning

confidence: 99%

Reliable and Efficient Chip-PCB Hybrid PUF and Lightweight Key Generator

XU¹,

KE²,

Fu³

et al. 2023

IEICE Trans. Electron.

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Physical Unclonable Function (PUF) is a promising lightweight hardware security primitive that can extract device fingerprints for encryption or authentication. However, extracting fingerprints from either the chip or the board individually has security flaws and cannot provide hardware system-level security. This paper proposes a new Chip-PCB hybrid PUF(CPR PUF) in which Weak PUF on PCB is combined with Strong PUF inside the chip to generate massive responses under the control of challenges of on-chip Strong PUF. This structure tightly couples the chip and PCB into an inseparable and unclonable unit thus can verify the authenticity of chip as well as the board. To improve the uniformity and reliability of Chip-PCB hybrid PUF, we propose a lightweight key generator based on a reliability self-test and debiasing algorithm to extract massive stable and secure keys from unreliable and biased PUF responses, which eliminates expensive error correction processes. The FPGA-based test results show that the PUF responses after robust extraction and debiasing achieve high uniqueness, reliability, uniformity and anti-counterfeiting features. Moreover, the key generator greatly reduces the execution cost and the bit error rate of the keys is less than 10 −9 , the overall security of the key is also improved by eliminating the entropy leakage of helper data.

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“…Physical Unclonable Functions (PUFs) can provide a lightweight and tamper-proof security primitive for IoT devices particularly telehealth sensors [1,8,9]. PUFs create cryptographic signatures that can be used for authentication [10], software attestation, and cryptographic key generation [11,12]. These signatures are derived from the sub-micron process variations present in integrated circuits (ICs) [13].…”

Section: Introductionmentioning

confidence: 99%

A Novel IoT Sensor Authentication Using HaLo Extraction Method and Memory Chip Variability

Gordon¹,

Lyp²,

Kimbro³

et al. 2021

Preprint

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In this paper, we propose flash-based hardware security primitives as a viable solution to meet the security challenges of the IoT and specifically telehealth markets. We have created a novel solution, called the High and Low (HaLo) method, that generates physical unclonable function (PUF) signatures based on process variations within flash memory in order to uniquely identify and authenticate remote sensors. The HaLo method consumes 60% less power than conventional authentication schemes, has an average latency of only 39ms for signature generation, and can be readily implemented through firmware on ONFI 2.2 compliant off-the-shelf NAND flash memory chips. The HaLo method generates 512 bit signatures with an average error rate of 5.9 * 10 −4 , while also adapting for flash chip aging. Due to its low latency, low error rate, and high power efficiency, the HaLo method could help progress the field of remote patient monitoring by accurately and efficiently authenticating remote health sensors. Keywords Physical Unclonable Function (PUF) • Internet of Things (IoT) • Flash MemoryTelecommunication in healthcare, or telehealth, provides a means by which patients can interact with medical professionals and health-related services virtually. In light of the COVID-19 worldwide pandemic, the need for secure and readily available remote patient monitoring has never been more important. Rural and low-income communities,

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A Systematic Approach for Internal Entropy Boosting in Delay-based RO PUF on an FPGA

Cited by 7 publications

References 9 publications

Lightweight Strong PUF for Resource-Constrained Devices

Lightweight Strong PUF for Resource-Constrained Devices

Reliable and Efficient Chip-PCB Hybrid PUF and Lightweight Key Generator

A Novel IoT Sensor Authentication Using HaLo Extraction Method and Memory Chip Variability

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