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• The paper introduces a topology-hiding connectivity assurance protocol to enhance trust in QKD network infrastructures.method 95%
• The protocol allows network providers to jointly prove the existence of a secure connection between endpoints without revealing internal topology details.method 90%
• The work extends graph-signature techniques to support multi-graphs and hidden endpoints.technical 90%
• The approach enables zero-knowledge proofs of connectivity that ensure both soundness and topology hiding.technical 90%
• The approach can certify multiple disjoint paths, supporting multi-path QKD scenarios.method 85%
• Real-world QKD deployments depend on trusted repeaters, creating potential vulnerabilities.limitation 80%
• The work bridges cryptographic assurance methods with the operational requirements of QKD networks.technical 80%

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