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S-CAD: Selective Classical Advantage Distillation for Quantum Conference Key Agreement
Trevor Thomas, Walter O. Krawec, Bing Wang
Quantum conference key agreement (QCKA) protocols utilize GHZ states to establish shared group keys between multiple parties. While previous work has shown that standard Classical…
Opportunistic Scheduling for Single-downlink Satellite-based Quantum Key Distribution
Md Zakir Hossain, Nitish K. Panigrahy, Walter O. Krawec +2
Satellite-based quantum key distribution (QKD), leveraging low photon loss in free-space quantum communication, is widely regarded as one of the most promising directions to achiev…
Quantum Public Key Encryption for NISQ Devices
Nishant Rodrigues, Walter O. Krawec, Brad Lackey +2
Quantum public-key encryption (PKE), where public-keys and/or ciphertexts can be quantum states, is an important primitive in quantum cryptography. Unlike classical PKE (e.g., RSA…
Blockwise Post-processing in Satellite-based Quantum Key Distribution
Minu J. Bae, Nitish K. Panigrahy, Prajit Dhara +5
Free-space satellite communication has significantly lower photon loss than terrestrial communication via optical fibers. Satellite-based quantum key distribution (QKD) leverages t…
Security of Partially Corrupted Repeater Chains
Adrian Harkness, Walter O. Krawec, Bing Wang
Quantum Key Distribution allows two parties to establish a secret key that is secure against computationally unbounded adversaries. To extend the distance between parties, quantum…
Finite Key Security of Simplified Trusted Node Networks
Walter O. Krawec, Bing Wang, Ryan Brown
Simplified trusted nodes (STNs) are a form of trusted node for quantum key distribution (QKD) networks which do not require running a full QKD stack every instance (i.e., they do n…