KyberLock
F. Ruiz
TAKE PRIVACY BACK INTO YOUR OWN HANDS Uncompromising, post-quantum end-to-end encryption and steganography for email, files, and real-time chat. KyberLock is the next evolution in secure communication. Designed as true sovereign software, KyberLock operates entirely independent of servers that could compromise, monitor, or leak your data. Everything executes locally on your machine. We store nothing secret—not in the cloud, and not on your device. WHAT YOU CAN DO WITH KYBERLOCK: True E2E Messaging: Write messages that only your intended recipient can decrypt, without ever needing to pre-arrange a shared password. Universal Locking: Secure files and images just as easily as text. P2P Secure Chat: Establish real-time, peer-to-peer rooms for text, files, audio, and video—completely serverless. Digital Signatures: Cryptographically sign text, images, and files so recipients know with absolute certainty they came from you. Platform Agnostic: Turn your favorite webmail or messaging platform into a secure, encrypted channel. Advanced Steganography: Hide encrypted payloads inside apparently innocent text narratives or embed them invisibly into image files. Decoy Mode: Create plausible deniability by ensuring your true message isn't what it appears to be. Read-Once Delivery: Generate messages that permanently self-destruct after a single successful decryption. Cross-Ecosystem Compatibility: Communicate seamlessly with users on Privacy Bar, our newest and greatest app. Offline Persistence: Run the app entirely offline. Communicate securely over local networks or air-gapped machines. THE POST-QUANTUM ADVANTAGE KyberLock is engineered for the future, built around the recently standardized ML-KEM (Crystals-Kyber) cryptographic algorithm based on module lattices. Unlike traditional RSA or ECC methods, this architecture is mathematically designed to withstand decryption attempts from tomorrow's quantum computers. To complete the encapsulation, KyberLock uses the incredibly fast, high-performance xsalsa20 encryption cipher—an open-source standard rigorously vetted by the cryptographic community for years. HOW IT WORKS The first time you run KyberLock, it helps you generate a Master Key from a text phrase of your choosing. We enforce no arbitrary rules—your Key can be anything you can easily remember, ensuring you never have to write it down. From this Key, KyberLock generates a public "Lock" (a block of random-looking text). You share this Lock with anyone. They use it to seal messages meant for you, and only your Master Key—which never leaves your brain—can unlock them. TRANSPARENCY & AUDITING KyberLock is available here as a Chrome Extension, but is identical in function to our standalone desktop and mobile web applications. You can run and audit the pure web version at: https://kyberlock.com/app If you want to verify the web integrity yourself, save the page as HTML, hash it with an external SHA256 tool, and compare it. (Note: This step is not necessary for this Web Store version, as it is intrinsically code-signed by Google). Current SHA256 for kyberlock.com/app index.html: 82b831a9a9450989e7d8a9169e17714c0ab061d17eb8544d74547cef1fe1acd8
