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Related Experiment Video

Updated: Sep 10, 2025

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

DCDC PUF an enhanced implementation of ring oscillator based PUF.

Leen Younes¹, Enas Abulibdeh², Baker Mohammad³

¹System on Chip (SoC) Lab, Department of Computer & Information Engineering, Khalifa University of Science & Technology, 127788, Abu Dhabi, UAE.

Scientific Reports

|August 23, 2025

Summary

This study enhances Physical Unclonable Functions (PUFs) using a power management unit

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Area of Science:

Integrated circuit design
Hardware security
Semiconductor technology

Background:

Physical Unclonable Functions (PUFs) are crucial for secure key generation.
Power Management Units (PMUs) are integral to modern System-on-Chip (SoC) designs for power efficiency.

Purpose of the Study:

To propose and evaluate an enhanced PUF design by integrating a voltage regulator from a PMU.
To improve PUF security and performance using existing on-chip components.

Main Methods:

Design of a novel PUF system utilizing a PMU's voltage regulator in 22-nm FDSOI technology.
Statistical analysis based on silicon measurements of 8K challenge-response pairs from three chips.

Main Results:

The enhanced PUF achieved 50% diffuseness (31% improvement) and 48% uniformity.
Demonstrated superior resilience against machine learning attacks with 50.5% prediction accuracy compared to 67.1% for standalone PUFs.

Conclusions:

Integrating PMU voltage regulators offers a viable method to enhance PUF security and performance.
The proposed PUF design provides improved statistical properties and robustness against adversarial attacks.