2026· IEEE Journal on Selected Areas in Communications· Vol 44, pp. 5669-5679· 0 citations· 50 references
Computer Science
TL;DR
Analytical model, security analysis, and optimal contribution of keys in the mixed cryptographic key are provided, which demonstrate the validity of this approach in point-to-point and network environments.
Abstract
Quantum key distribution and post-quantum cryptography represent the backbone for tackling security challenges in the quantum era. Although each of them has its own shortcomings, their practical implementation raises the question of their possible combination and synergy. In this context, the paper considers mixing established cryptographic keys at key management layer, using both approaches to optimize the available key resources in a quantum network, also balancing the provided security. We provide analytical model, security analysis, and optimal contribution of keys in the mixed cryptographic key. Extensive simulation results demonstrate the validity of this approach in point-to-point and network environments.
The emergence of quantum computing threatens the security of widely deployed public-key cryptographic systems such as RSA and elliptic curve cryptography. In response, the National Institute of Standards and Technology (NIST) standardized a new generation of post-quantum algorithms including ML-KEM and ML-DSA. This pap...
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The amount of secret key that can be obtained from a quantum key distribution run depends on both the physically observed error rates and the mathematical bounds used to certify security. For finite datasets, conservative bounds force users to discard a substantial fraction of the potentially available key. Here we fur...
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The engineering case for combining post-quantum cryptography (PQC) with quantum key distribution (QKD) as a strategy for securing next-generation communication infrastructure, focusing on 6G core and radio-access networks, Open RAN (O-RAN), and constrained Internet of Things (IoT) deployments is examined.
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To meet the performance and scalability demands of current cloud systems, cryptographic systems should be resistant to both quantum and classical adversaries, especially considering the future potential provided by quantum computing. The presented manuscript provides an integrated, quantum-resistant, cloud-based encryp...
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