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Keyless Semi-Quantum Point-to-point Communication Protocol with Low Resource Requirements.

Haoye Lu1, Michel Barbeau2, Amiya Nayak3

  • 1University of Ottawa, School of Electrical Engineering and Computer Science (EECS), Ottawa, K1N 6N5, Canada. hlu044@uottawa.ca.

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This summary is machine-generated.

This study introduces two new keyless semi-quantum communication protocols (EKSQPC and REKSQPC) for secure communication on portable devices. These protocols offer improved qubit efficiency and hardware simplicity, enhancing communication security against quantum threats.

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Area of Science:

  • Quantum Information Science
  • Cybersecurity
  • Telecommunications

Background:

  • Full quantum communication devices are not portable, and classical devices lack quantum-resistant channels.
  • Semi-Quantum Communication (SQC) aims to enable secure communication on portable devices by reducing quantum requirements for receivers.
  • Existing SQC protocols suffer from low qubit efficiency and complex hardware, with entanglement-based protocols requiring linear Entanglement Preservation Time (EPT) and quregister size.

Purpose of the Study:

  • To propose novel keyless Semi-Quantum Communication (SQC) protocols that overcome the limitations of existing methods.
  • To enhance the portability and efficiency of secure communication systems for devices.
  • To develop protocols resistant to quantum computing threats and practical for real-world deployment.

Main Methods:

  • Introduction of two new keyless SQC protocols: Economic Keyless Semi-Quantum Point-to-point Communication (EKSQPC) and Rate Estimation EKSQPC (REKSQPC).
  • Development of a new quantum message transmission operation named Tele-Fetch.
  • Analysis of protocol performance regarding qubit efficiency, hardware complexity, Entanglement Preservation Time (EPT), and quregister size.

Main Results:

  • The proposed EKSQPC and REKSQPC protocols achieve theoretically constant minimal EPT and quregister size, independent of message length.
  • The protocols demonstrate the ability to detect Measure and Replay Attacks (MRA) with low overhead.
  • REKSQDC exhibits tolerance to transmission impairments and environmental perturbations, unlike many quantum communication protocols.

Conclusions:

  • The new keyless SQC protocols offer a practical solution for secure communication on portable devices, addressing limitations in qubit efficiency and hardware complexity.
  • The protocols' security relies on physical principles, similar to Quantum Key Distribution (QKD), providing a robust alternative to mathematically complex cryptography.
  • EKSQPC and REKSQPC represent a significant advancement in making quantum-resistant communication accessible and feasible for portable technology.