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This study introduces a quantum-secured LiDAR protocol using Gaussian modulated coherent states to detect spoofing attacks. The novel system accurately determines target range and identifies malicious interference with high probability.

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Area of Science:

  • Quantum information science
  • Optical sensing technologies
  • Cybersecurity in remote sensing

Background:

  • Classical Light Detection and Ranging (LiDAR) systems are vulnerable to intercept-and-recent spoofing attacks, compromising target detection.
  • Spoofing attacks aim to deceive LiDAR systems by mimicking legitimate signals, leading to inaccurate ranging and potential evasion.
  • Existing security measures for LiDAR are often insufficient against sophisticated adversarial tactics.

Purpose of the Study:

  • To propose and evaluate a novel quantum-secured LiDAR protocol for enhanced security against spoofing attacks.
  • To demonstrate the capability of the quantum LiDAR system for both accurate target ranging and robust spoofing detection.
  • To assess the practical feasibility and performance of the proposed quantum security solution using current technology.

Main Methods:

  • Utilizing Gaussian modulated coherent states for signal transmission in the LiDAR system.
  • Employing cross-correlation analysis for precise target range determination.
  • Estimating system excess noise to detect anomalies indicative of spoofing attempts.
  • Developing a computational model for target ranging and security verification.
  • Conducting numerical simulations to analyze the Receiver Operating Characteristic (ROC) curve.

Main Results:

  • The quantum-secured LiDAR protocol effectively distinguishes between legitimate targets and spoofing attempts.
  • Spoofing attacks were detected with a high probability.
  • The system achieved a low false-alarm rate, ensuring reliable operation.
  • Numerical simulations validated the protocol's performance and security efficacy.
  • The proposed method demonstrated practical viability with current technological capabilities.

Conclusions:

  • The proposed quantum-secured LiDAR protocol offers a robust defense against intercept-and-recent spoofing attacks.
  • Accurate ranging and reliable spoofing detection are achievable simultaneously using quantum principles.
  • The system's reliance on current technology makes it a practical and implementable solution for secure remote sensing applications.