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The rise of large-scale quantum computing poses a significant threat to traditional cryptographic security measures. Quantum attacks undermine current asymmetric cryptographic algorithms, rendering them ineffective. Even symmetric key…

Cryptography and Security · Computer Science 2025-01-03 Yaser Baseri , Vikas Chouhan , Ali Ghorbani , Aaron Chow

Since the security of post-quantum cryptography (PQC) algorithms is based on the hardness of mathematical problems, while the security of quantum key distribution (QKD) relies on the fundamental principles of quantum physics, each approach…

Cryptography and Security · Computer Science 2025-10-06 Abel C. H. Chen

Advances in quantum computing make Shor's algorithm for factorising numbers ever more tractable. This threatens the security of any cryptographic system which often relies on the difficulty of factorisation. It also threatens methods based…

Cryptography and Security · Computer Science 2022-02-08 Jon Barton , William J Buchanan , Nikolaos Pitropakis , Sarwar Sayeed , Will Abramson

Reference-Frame-Independent Quantum Key Distribution (RFI-QKD) provides a practical way to generate secret keys between two remote parties without sharing common reference frames. On the other hand, Measurement-Device-Independent QKD…

The Domain Name System Security Extensions (DNSSEC) provide authentication of DNS responses using digital signatures. DNS operates primarily over UDP, which leads to several constraints: notably, packets should be at most 1232 bytes long to…

Cryptography and Security · Computer Science 2022-11-28 Jason Goertzen , Douglas Stebila

This paper studies how post-quantum cryptographic (PQC) security assumptions can be represented and communicated through a structured, layered framework that is useful for technical interpretation but does not replace formal cryptographic…

Cryptography and Security · Computer Science 2026-04-07 Daisuke Ishii , Rizwan Jahangir

Multiparty quantum key agreement (MQKA) enables $n \geq 3$ mutually distrustful users to establish a shared secret key through collaborative quantum protocols. In this paper, we provide a comprehensive review where we argue that MQKA is…

Quantum Physics · Physics 2026-03-04 Malik Mouaji , Saif Al-Kuwari

The implications of sufficiently large quantum computers for widely used public-key cryptography is well-documented and increasingly discussed by the security community. An April 2016 report by the National Institute of Standards and…

Computers and Society · Computer Science 2019-09-17 David Ott , Christopher Peikert , other workshop participants

Merkle tree is a widely used tree structure for authentication of data/metadata in a secure computing system. Recent state-of-the art secure systems use a smaller-sized MT, namely Bonsai Merkle Tree (BMT) to protect the metadata such as…

Cryptography and Security · Computer Science 2023-09-19 Rakin Muhammad Shadab , Yu Zou , Sanjay Gandham , Amro Awad , Mingjie Lin

Quantum key distribution (QKD) serves as a cornerstone of secure quantum communication, providing unconditional security grounded in quantum mechanics. While trusted-node networks have facilitated early QKD deployment, their vulnerability…

Quantum Physics · Physics 2025-03-10 Jingyang Liu , Xingyu Zhou , Huajian Ding , Jiaxin Xu , Chunhui Zhang , Jian Li , Qin Wang

In their 2022 study, Kuang et al. introduced Multivariable Polynomial Public Key (MPPK) cryptography, leveraging the inversion relationship between multiplication and division for quantum-safe public key systems. They extended MPPK into…

Cryptography and Security · Computer Science 2024-06-07 Randy Kuang , Maria Perepechaenko , Mahmoud Sayed , Dafu Lou

Zero-Knowledge Proofs (ZKPs) are critical for privacy-preserving techniques and verifiable computation. Many ZKP protocols rely on key kernels such as the SumCheck protocol and Merkle Tree commitments to enable their key security…

Hardware Architecture · Computer Science 2025-10-21 Jianqiao Mo , Alhad Daftardar , Joey Ah-Kiow , Kaiyue Guo , Benedikt Bünz , Siddharth Garg , Brandon Reagen

We present in this paper an algorithm for exchanging session keys, coupled with a hashing encryption module. We show schemes designed for their potential invulnerability to classical and quantum attacks. In turn, if the parameters included…

Cryptography and Security · Computer Science 2023-01-24 Hugo Daniel Scolnik , Juan Pedro Hecht

Post-Quantum Cryptography (PQC) is a rapidly growing deployment challenge as cryptographically relevant quantum computers (CRQC) continue to advance, leaving traditional cryptographic algorithms used in X.509 vulnerable to attack. However,…

Cryptography and Security · Computer Science 2026-04-29 Matthew Chou , Phuong Cao

The machinery of industrial environments was connected to the Internet years ago with the scope of increasing their performance. However, this change made such environments vulnerable against cyber-attacks that can compromise their correct…

Cryptography and Security · Computer Science 2024-06-12 Javier Oliva del Moral , Antonio deMarti iOlius , Gerard Vidal , Pedro M. Crespo , Josu Etxezarreta Martinez

Since Remote Keyless Entry (RKE) systems started to be widely used, several vulnerabilities in their protocols have been found. Attacks such as jamming-and-replay attacks and relay attacks are still effective against most recent RKE…

Cryptography and Security · Computer Science 2019-05-16 Vanesa Daza , Xavier Salleras

Quantum key distribution (QKD) provides information theoretically secures key exchange requiring authentication of the classic data processing channel via pre-sharing of symmetric private keys. In previous studies, the lattice-based…

This system paper documents the technical foundations for the extension of the Topology ToolKit (TTK) to distributed-memory parallelism with the Message Passing Interface (MPI). While several recent papers introduced topology-based…

Distributed, Parallel, and Cluster Computing · Computer Science 2024-04-16 Eve Le Guillou , Michael Will , Pierre Guillou , Jonas Lukasczyk , Pierre Fortin , Christoph Garth , Julien Tierny

Blockchain is a Distributed Ledger Technology (DLT) that offers numerous benefits including decentralization, transparency, efficiency, and reduced costs. Hence, blockchain has been included in many fields. Blockchain relies on…

Cryptography and Security · Computer Science 2025-08-26 Sufyan Al-Janabi

Private BitTorrent trackers enforce upload-to-download ratios to prevent free-riding, but suffer from three critical weaknesses: reputation cannot move between trackers, centralized servers create single points of failure, and upload…

Cryptography and Security · Computer Science 2026-04-16 François-Xavier Wicht , Zhengwei Tong , Shunfan Zhou , Hang Yin , Aviv Yaish