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~ similar to 2603.19110v1· 20 results

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.CRRecentJun 4, 2026

Towards Worst-case Hardness for Low-Noise LPN

Divesh Aggarwal, Rishav Gupta, Hai Hoang Nguyen, Kel Zin Tan +1 more

The paper presents a new worst-case to average-case reduction for the Learning Parity with Noise (LPN) problem, achieving hardness for inverse-polynomial noise rates previously unattainable.

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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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cs.CRcs.NIRecentApr 9, 2026

Post-Quantum Cryptographic Analysis of Message Transformations Across the Network Stack

Ashish Kundu, Vishal Chakraborty, Ramana Kompella

The paper proposes a formal framework to analyze how the combined cryptographic transformations across all layers of a network stack determine the overall post-quantum security posture of a message.

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cs.CRmath.AGRecentApr 4, 2026

Explainable PQC: A Layered Interpretive Framework for Post-Quantum Cryptographic Security Assumptions

Daisuke Ishii, Rizwan Jahangir

The paper proposes 'Explainable PQC,' a layered interpretive framework designed to structure and clarify how post-quantum cryptographic security assumptions are represented and communicated, particula…

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cs.CRcs.ITRecentApr 10, 2026

Cross-Paradigm Models of Restricted Syndrome Decoding with Application to CROSS

Étienne Burle, Aleksei Udovenko

The paper analyzes the security of the post-quantum signature scheme CROSS by showing that the underlying Restricted Syndrome Decoding problem can be reduced to both code-based and lattice-based probl…

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quant-phcs.CRRecentMay 29, 2026

Pseudoentanglement in constant depth: How trivial states can have non-trivial entanglement structure

Alexandru Gheorghiu

The paper constructs a family of simple quantum states (pseudoentangled states) generated by constant-depth circuits that exhibit non-trivial entanglement structure, demonstrating that entanglement st…

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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.CRRecentJun 4, 2026

On the Cryptographic Structure Required for Verifying Qubits

James Bartusek, Itay Shalit

The paper constructs strong cryptographic primitives, including key agreement and oblivious transfer, directly from classical tests of anti-commutation (ToNC) on quantum devices, while also developing…

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quant-phcs.CRRecentMar 27, 2026

Information-Theoretic Solutions for Seedless QRNG Bootstrapping and Hybrid PQC-QKD Key Combination

Juan Antonio Vieira Giestinhas, Timothy Spiller

The paper proposes a unified, information-theoretic framework using universal hash functions to solve the bootstrapping of seedless QRNGs and to securely combine PQC and QKD keys against quantum adver…

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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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quant-phcs.CRRecentMay 11, 2026

On Scalable Pseudorandom Unitaries and the Unitary Synthesis Problem

Zvika Brakerski, Henry Yuen

The paper establishes a strong connection between scalable pseudorandom unitaries (PRUs) and the unitary synthesis problem, proving that any such PRU construction must require a classical oracle of si…

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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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cs.LGcs.CRRecentMay 12, 2026

Quantum Adversarial Machine Learning: From Classical Adaptations to Quantum-Native Methods

Roozbeh Razavi-Far, Mohammad Meymani, Erfan Mahmoudinia, Dorsa Vazirzade +5 more

This survey provides a detailed overview of quantum adversarial machine learning, examining existing attacks, novel quantum-enhanced defense strategies, and the theoretical challenges in securing quan…

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cs.CRcs.ITcs.LGRecentApr 8, 2026

Evaluating PQC KEMs, Combiners, and Cascade Encryption via Adaptive IND-CPA Testing Using Deep Learning

Simon Calderon, Niklas Johansson, Onur Günlü

The paper proposes using deep learning to empirically test the indistinguishability of various post-quantum and hybrid cryptographic schemes, finding that no tested combination showed a significant ad…

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cs.CRRecentApr 12, 2026

Public Key Encryption from High-Corruption Constraint Satisfaction Problems

Isaac M Hair, Amit Sahai

The paper introduces a novel public key encryption scheme with high security by leveraging the conjectured intractability of two types of highly corrupted constraint satisfaction problems (CSPs).

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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.CRmath.CORecentMay 17, 2026

Module Lattice Security (Part IV): Probabilistic Polynomial Quantum Attack on Module-LWE over 2-Power Cyclotomics

Ming-Xing Luo

This paper presents a quantum attack on Module-LWE based lattice schemes like ML-KEM, demonstrating a polynomial-time quantum algorithm with a high success probability.

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cs.CRcs.ITRecentMar 24, 2026

The Power of Power Codes: New Classes of Easy Instances for the Linear Equivalence Problem

Michele Battagliola, Anna-Lena Horlemann, Abhinaba Mazumder, Rocco Mora +3 more

This paper identifies new, algebraically weak classes of instances for the Linear Equivalence Problem (LEP) by generalizing techniques from the Permutation Equivalence Problem (PEP) using power codes…

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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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