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~ similar to 2604.27284v1· 20 results

quant-phcs.CRcs.ITRecentMar 26, 2026

Send the Key in Cleartext: Halving Key Consumption while Preserving Unconditional Security in QKD Authentication

Claudia De Lazzari, Francesco Stocco, Edoardo Signorini, Giacomo Fregona +6 more

The paper introduces a novel authentication-with-response scheme that halves the key consumption required for mutual authentication in Quantum Key Distribution (QKD) while maintaining unconditional se…

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quant-phcs.CRRecentApr 13, 2026

Answering Counting Queries with Differential Privacy on a Quantum Computer

Arghya Mukherjee, Hassan Jameel Asghar, Gavin K. Brennen

This paper develops and analyzes two differentially private methods for answering counting queries on quantum-encoded datasets, demonstrating improved privacy guarantees and a quantum-safe approach fo…

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quant-phcs.CRRecentMar 18, 2026

One Key Good, L Keys Better: List Decoding Meets Quantum Privacy Amplification

Prateek P. Kulkarni

The paper introduces List Privacy Amplification (LPA) and proves the Quantum List Leftover Hash Lemma (QLLHL), demonstrating that it can significantly increase the achievable key length in Quantum Key…

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cs.CRRecentMay 5, 2026

Quantum-Resistant Networks: A Review of Primitives, Protocols and Best Practices

Elisa Bertino, Ramana Kompella, Ashish Kundu, Cristina Nita-Rotaru +2 more

This paper provides a comprehensive, system-level taxonomy for designing quantum-resistant network architectures, moving beyond simple protocol substitutions to address key distribution and management…

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quant-phcs.CRRecentMar 31, 2026

The Manipulate-and-Observe Attack on Quantum Key Distribution

William Tighe, George Brumpton, Mark Carney, Benjamin T. H. Varcoe

This paper introduces the Manipulate-and-Observe attack, demonstrating that by combining partial qubit interception with probing parity-leakage during reconciliation, an eavesdropper can significantly…

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cs.CRRecentMay 19, 2026

A Survey on Security with Quantum Computing

Manik Kumar Sangala, Robin Naira, Akhirul Islam, Sudip Biswas +1 more

This survey provides a comprehensive review of the security challenges, threats, and mitigation strategies associated with the rapid advancement of quantum computing.

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quant-phcs.CRRecentApr 17, 2026

Quantum-Resistant Quantum Teleportation

Xin Jin, Nitish Kumar Chandra, Mohadeseh Azari, Jinglei Cheng +3 more

The paper proposes a quantum-resistant quantum teleportation (QRQT) framework using post-quantum cryptography to secure the classical channel, establishing maximum secure communication distances and a…

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cs.CRcs.LGRecentMar 24, 2026

Combinatorial Privacy: Private Multi-Party Bitstream Grand Sum by Hiding in Birkhoff Polytopes

Praneeth Vepakomma

The paper introduces PolyVeil, a protocol for private Boolean summation that uses permutation matrices in the Birkhoff polytope, achieving strong security guarantees while highlighting a fundamental t…

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quant-phcs.CRRecentApr 11, 2026

Encrypted clones can leak: Classification of informative subsets in Quantum Encrypted Cloning

Gabriele Gianini, Omar Hasan, Corrrado Mio, Stelvio Cimato +1 more

The paper classifies the subsets of an encrypted-clone storage register, demonstrating that intermediate non-authorized subsets can leak information about the original qubit state through a parity-dep…

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cs.CReess.SPRecentApr 13, 2026

Robust Covert Quantum Communication under Bounded Channel Uncertainty

Abbas Arghavani, Alessandro V. Papadopoulos, Vahid Azimi Mousolou, Giuseppe Nebbione +1 more

The paper develops a robust framework for covert quantum communication by analyzing performance over quantum channels with bounded uncertainty in transmissivity and noise, showing that worst-case secu…

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quant-phcs.CRRecentMar 19, 2026

Post-Quantum Cryptography from Quantum Stabilizer Decoding

Jonathan Z. Lu, Alexander Poremba, Yihui Quek, Akshar Ramkumar

The paper proposes that decoding random quantum stabilizer codes is a robust, novel post-quantum cryptographic assumption, demonstrating that its average-case hardness implies core primitives like PKE…

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cs.ITcs.CRquant-phRecentJun 1, 2026

Multidimensional Reconciliation in Continuous-Variable QKD: Review, Coding Schemes, and Open Source Simulation

Lucien Martial, Alexis Rosio, Eleni Diamanti, Adrien Cassagne +1 more

This paper reviews multidimensional reconciliation techniques for Continuous-Variable Quantum Key Distribution (CV-QKD), demonstrating how transforming the physical channel into a virtual binary chann…

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quant-phcs.CRRecentMay 6, 2026

Fundamental Limitations of Post-Quantum Cryptographic Architectures

Jiho Jung, Donghwa Ji, Mingyu Lee, Kabgyun Jeong

The paper argues that current lattice-based post-quantum cryptography, which relies on injecting noise, is not unconditionally secure because advanced quantum error correction and learning techniques…

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cs.CRRecentMar 18, 2026

Data Obfuscation for Secure Use of Classical Values in Quantum Computation

Amal Raj, Vivek Balachandran

This paper introduces the first explicit data obfuscation technique to protect classical sensitive values during the execution phase of quantum computation.

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quant-phcs.CRRecentApr 26, 2026

Efficient Quantum Fully Homomorphic Encryption

Fengxia Liu, Zixian Gong, Kun Tian, Yi Zhang +2 more

The paper introduces a unified framework for Quantum Fully Homomorphic Encryption (QFHE) that achieves exponential efficiency improvements by integrating a novel modular arithmetic program (MAP) tailo…

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quant-phcs.CRRecentApr 7, 2026

PQC-Enhanced QKD Networks: A Layered Approach

Paul Spooren, Andreas Neuhold, Sebastian Ramacher, Thomas Hühn

The paper proposes a layered, modular network architecture combining Quantum Key Distribution (QKD) and Post-Quantum Cryptography (PQC) to achieve scalable, end-to-end post-quantum security in multi-h…

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cs.CRcs.LGRecentMar 20, 2026

TAPAS: Efficient Two-Server Asymmetric Private Aggregation Beyond Prio(+)

Harish Karthikeyan, Antigoni Polychroniadou

TAPAS introduces an efficient, asymmetric two-server private aggregation scheme that significantly reduces computational and communication costs for large-scale federated learning compared to existing…

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cs.CRRecentMay 4, 2026

The 1-Bit Barrier is Universal: k-Stage Pipeline Composition and Unified Leakage Bounds for Standard Modular Reductions in PQC Hardware

Ray Iskander, Khaled Kirah

This paper proves that the per-observation leakage bound for deep, multi-stage masked Number Theoretic Transform (NTT) pipelines remains constant and low ($2/q$), regardless of the pipeline's depth ($…

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cs.CRRecentApr 26, 2026

Time-Delayed Publicly Verifiable Quantum Computation for Classical Verifiers

Ameer Mohammed, Aydin Abadi, Jaffer Mahdi

The paper proposes a practical, non-interactive scheme for publicly verifying quantum computations delegated from a classical user to a quantum prover, by relaxing the requirement to time-delayed veri…

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quant-phcs.CRRecentMay 22, 2026

Optimal Quantum Differential Privacy via Fisher Information Spectral Analysis

Justice Owusu Agyemang, Jerry John Kponyo, Elliot Amponsah, Godfred Manu Addo Boakye

The paper introduces a geometry-aware framework for quantum differential privacy by aligning noise to the Quantum Fisher Information (QFI) eigenstructure, achieving significantly tighter privacy-utili…

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