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Multi-path-based quasi-real-time key provisioning in quantum-key-distribution enabled optical networks (QKD-ON)
Optics Express
|July 16, 2021
Summary
Quantum key pools in quantum-key-distribution-enabled optical networks (QKD-ON) compromise security. Quasi-real-time key provisioning (QRT-KP) balances security and storage, with multi-path QRT-KP (MP-QRT-KP) enhancing performance.
Area of Science:
- Computer Science
- Information Security
- Optical Networks
Background:
- Quantum-key-distribution-enabled optical networks (QKD-ON) offer information-theoretic security.
- Quantum key pools (QKP) are used for storing quantum keys but can reduce theoretical security.
- Balancing key storage and security is a challenge for practical QKD-ON deployments.
Purpose of the Study:
- To introduce quasi-real-time key provisioning (QRT-KP) to address the security-storage tradeoff in QKD-ONs.
- To propose a multi-path based QRT-KP (MP-QRT-KP) algorithm for practical QKD-ON deployment and high-traffic flow.
Main Methods:
- Developed the multi-path based quasi-real-time key provisioning (MP-QRT-KP) algorithm.
- Simulated the performance of MP-QRT-KP against single-path based QRT-KP (SP-QRT-KP).
Main Results:
- MP-QRT-KP effectively enhances QKD-ON performance across various scenarios.
- MP-QRT-KP demonstrates superior success probability in key-allocation requests compared to SP-QRT-KP.
- MP-QRT-KP shows improved key-resource utilization over SP-QRT-KP.
Conclusions:
- MP-QRT-KP offers a viable solution for balancing quantum key storage and security in QKD-ONs.
- The proposed algorithm is suitable for practical QKD-ON deployments requiring high-traffic handling.
- MP-QRT-KP significantly improves key management efficiency and network performance.
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