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Related Experiment Video

Updated: Jun 13, 2025

Generation and Coherent Control of Pulsed Quantum Frequency Combs
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Hardware-Efficient Configurable Ring-Oscillator-Based Physical Unclonable Function/True Random Number Generator

Santiago Sánchez-Solano1, Luis F Rojas-Muñoz1, Macarena C Martínez-Rodríguez1

  • 1Instituto de Microelectrónica de Sevilla, IMSE-CNM, CSIC/Universidad de Sevilla, 41092 Sevilla, Spain.

Sensors (Basel, Switzerland)
|September 14, 2024
PubMed
Summary
This summary is machine-generated.

This study introduces a configurable physical unclonable function/true random number generator (PUF/TRNG) module using ring oscillators (ROs) for enhanced electronic device security. The developed module offers improved hardware efficiency and increased output bits for secure data handling.

Keywords:
hardware securityintellectual property modulesphysical unclonable functionsprogrammable devicessecure key managementtrue random number generators

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Area of Science:

  • * Electronic Engineering
  • * Cybersecurity
  • * Cryptography

Background:

  • * Physical unclonable functions (PUFs) are crucial for verifying electronic device authenticity and securing data.
  • * Existing PUF solutions often lack hardware efficiency and sufficient output bit generation.
  • * Modern programmable devices offer opportunities for novel PUF/TRNG architectures.

Purpose of the Study:

  • * To develop a configurable PUF/TRNG module leveraging Xilinx 7 Series FPGA structures.
  • * To enhance hardware efficiency and increase output bit count compared to prior art.
  • * To facilitate integration into embedded systems and accelerate on-device validation.

Main Methods:

  • * Design of a configurable PUF/TRNG module based on ring oscillators (ROs).
  • * Exploitation of RO configurability for statistical characterization.
  • * Development of a resource-optimized module version with increased output bits.
  • * Integration as a parameterized intellectual property (IP) module with standard interfaces.

Main Results:

  • * The module demonstrates adequate reliability, uniqueness, and unpredictability as a PUF.
  • * Acceptable randomness and entropy levels were achieved when functioning as a TRNG.
  • * A compact 4x4 CLB implementation can obfuscate/recover up to 4096-bit cryptographic keys.

Conclusions:

  • * The developed PUF/TRNG module offers an efficient and versatile solution for device authentication and secure data handling.
  • * Its design facilitates seamless integration into embedded systems, enhancing security.
  • * The module's performance metrics support its application in securing critical data exchange over the internet.