An Introductory Review of the Theory of Continuous-Variable Quantum Key Distribution: Fundamentals, Protocols, and Security

Continuous-variable quantum key distribution CV-QKD has emerged as a promising approach for secure quantum communication, offering advantages such as high key generation rates, compatibility with standard telecommunication infrastructure, and potential for integration on photonic chips. This revi...

Quantum Ramp Secret Sharing from Haar Scrambling

Quantum information scrambling has emerged as a powerful tool for studying the dynamics of chaotic quantum many-body systems, assessing benchmarking protocols, and even investigating exotic black hole models. During quantum information scrambling, localized quantum information disperses across th...

Finite-Key Security Analysis of the Decoy-State BB84 QKD with Passive Measurement

The decoy-state Bennett-Brassard 1984 BB84 quantum key distribution QKD protocol is widely regarded as the de facto standard for practical implementations. On the receiver side, passive basis choice is attractive because it significantly reduces the need for random number generators and eliminate...

Quantum-Resistant Authentication Scheme for RFID Systems Using Lattice-Based Cryptography

We propose a novel quantum-resistant mutual authentication scheme for radio-frequency identification RFID systems. Our scheme uses lattice-based cryptography and, in particular, achieves quantum-resistance by leveraging the hardness of the inhomogeneous short integer solution ISIS problem. In...

Engel P-Adic Isogeny-Based Cryptography over Laurent Series: Foundations, Security, and an ESP32 Implementation

Securing the Internet of Things IoT against quantum attacks requires public-key cryptography that i remains compact and ii runs efficiently on microcontrollers, capabilities many post-quantum PQ schemes lack due to large keys and heavy arithmetic. We address both constraints simultaneously with, ...

Quantum Key Distribution: Bridging Theoretical Security Proofs, Practical Attacks, and Error Correction for Quantum-Augmented Networks

Quantum Key Distribution QKD is revolutionizing cryptography by promising information-theoretic security through the immutable laws of quantum mechanics. Yet, the challenge of transforming these idealized security models into practical, resilient systems remains a pressing issue, especially as...

Categorical Framework for Quantum-Resistant Zero-Trust AI Security

The rapid deployment of AI models necessitates robust, quantum-resistant security, particularly against adversarial threats. Here, we present a novel integration of post-quantum cryptography PQC and zero trust architecture ZTA, formally grounded in category theory, to secure AI model access. Our...

A Single-Root, Multi-Curve, Context-Isolated, PQC-Pluggable Cryptographic Identity Primitive with Stateless Secret Rotation

Cryptographic identity anchors modern decentralized systems, yet current standards like BIP-39 and BIP-32 are structurally insufficient for the demands of multi-curve, multi-domain, and post-quantum PQC environments. These legacy schemes rely on a monolithic identity root with no inherent context...

Schneider Modicon M580/Quantum Communication Modules Out-of-bounds Write (CVE-2021-29999)

An issue was discovered in Wind River VxWorks through 6.8. There is a possible stack overflow in dhcp server. This plugin only works with Tenable.ot. Please visit https://www.tenable.com/products/tenable-ot for more information. %NASLMINLEVEL 80900 C Tenable, Inc. include'compat.inc'; if...

The Star Product of Uniformly Random Codes

We consider the problem of determining the expected dimension of the star product of two uniformly random linear codes that are not necessarily of the same dimension. We achieve this by establishing a correspondence between the star product and the evaluation of bilinear forms, which we use to...

The 2025 Go Cryptography State of the Union

This past August, I delivered my traditional Go Cryptography State of the Union talk at GopherCon US 2025 in New York. It goes into everything that happened at the intersection of Go and cryptography over the last year. You can watch the video with manually edited subtitles, for my fellow subtitl...

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Malicious code in protractor-wezen-repository-quantum (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector ed5572cbba6910aff31d33872e7ebb22412069d2c898fa10089c3aa097cce407 This package appears to be part of the tea.xyz token reward campaign that flooded npm. These packages typically contain autopublish scripts auto.js,...