The latest articles on DEV Community by Mefisto (@26). https://dev.to/26 https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.us-east-2.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F4143036%2F90ec7d96-6e98-4ce6-be52-b0f1092399a9.jpg https://dev.to/26 en Mefisto Sat, 26 Sep 2026 16:25:09 +0000 https://dev.to/26/diegox-combining-post-quantum-cryptography-with-plausible-deniability-in-rust-39lb https://dev.to/26/diegox-combining-post-quantum-cryptography-with-plausible-deniability-in-rust-39lb <p>Hey DEV community 👋</p> <p>Post-quantum cryptography is getting a lot of attention, but protecting files against future quantum computers solves only half the problem: <strong>what happens if someone forces you to hand over your password?</strong></p> <p>To address both threats, I built <strong>DIEGOX</strong>—an open-source desktop application written in <strong>Rust</strong>.</p> <h2> 🎭 The Core Feature: Dual-KEM Plausible Deniability (Decoy Mechanism) </h2> <p>Most encryption tools only offer "all or nothing" protection. <strong>DIEGOX</strong> introduces a Dual-KEM Chameleon architecture that creates a single encrypted file containing <strong>two independent slots</strong>:</p> <ol> <li>🔑 <strong>Alpha Passphrase:</strong> Unlocks your actual sensitive files (Real Slot).</li> <li>🎭 <strong>Beta Passphrase:</strong> Unlocks harmless dummy files (Decoy Slot).</li> </ol> <p>If you are ever forced to reveal your password under coercion, you can provide the <strong>Beta Passphrase</strong>. The attacker receives valid, uncorrupted decoy files, and <strong>it is mathematically impossible for them to prove that a second secret payload even exists inside the container</strong>.</p> <h2> 🛡️ Technical Highlights </h2> <ul> <li> <strong>Post-Quantum Security:</strong> Built on Learning With Errors (LWE) lattice cryptography ($n=1024, q=12289$).</li> <li> <strong>Argon2id Hardening:</strong> Resistant against GPU and ASIC parallelized brute-force attacks.</li> <li> <strong>Cyberpunk GUI:</strong> Custom native interface built with <code>egui</code> / <code>eframe</code> in pure Rust.</li> </ul> <h2> 📦 Try it out &amp; Source Code </h2> <p>The project is licensed under Apache 2.0 and has automated CI builds for Windows, Linux, and macOS.</p> <ul> <li>💻 <strong>GitHub Repository:</strong> <a href="https://github.com/mefisto26/diegox" rel="noopener noreferrer">https://github.com/mefisto26/diegox</a> </li> <li>🚀 <strong>Download Installer (v0.1.1):</strong> <a href="https://github.com/mefisto26/diegox/releases" rel="noopener noreferrer">GitHub Releases</a> </li> </ul> <h2> 💬 Feedback Welcome </h2> <p>Since DIEGOX is in pre-release (<code>v0.1.1</code>), I would really appreciate feedback from Rust developers and security enthusiasts on the codebase, UI feel, or cryptographic architecture!</p> rust cryptography opensource showdev