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Assessment of provably secure hybrid authenticated key exchange for dual-use applications
Simon Abelard1,2, Juan Antonio Vieira Giestinhas3, Delaram Kahrobaei3,4,5,6
1LRE, EPITA, 14 rue Voltaire, Le Kremlin Bicêtre, 94270 France.
Abstract:
This work assesses the literature on QKD-PQC Hybrid Authenticated Key Exchange (HAKE) and related schemes, based on security proofs (e.g. availability of such a proof and underlying model), performance, and near-term implementation. We evaluate these protocols across diverse dual-use environments, ranging from strategic military SATCOM to high-value civilian infrastructure, such as banking backbones. The trade-offs among various solutions are discussed based on their Technology Readiness Level (TRL) and performance. Moreover, we identify specific use cases such as untrusted satellite nodes or long-distance terrestrial links which might require alternative measures depending on the operational requirements.
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