Cloudflare's new post-quantum GeoKey Manager protects geographically fenced decryption keys from harvest now, decrypt later attacks. Learn how we redesigned our cryptography stack to support strict data sovereignty in a post-quantum world.
A Post-Quantum Future for Let's Encrypt
Let’s Encrypt is committed to a post-quantum-safe Web PKI. The path we’re planning to take is Merkle Tree Certificates (“MTCs”), a new approach that adds post-quantum authentication to the web without sacrificing the speed and reliability that have made TLS universal. This post is about these plans and why we believe MTCs are worth pursuing as a key to a post-quantum future. An increasingly urgent problem For much of the last several years, the conversation about post-quantum cryptography has been a conversation about encryption. The reasoning was straightforward: an attacker who records encrypted traffic today might be able to decrypt it years from now once quantum computers can break the underlying math. Authentication, the part of TLS that indicates a server is who it says it is, has been a less urgent problem. A quantum computer needs to forge a signature in real time, not retroactively, so threats to authentication hinge on the existence of a cryptographically relevant quantum computer (CRQC).
Node.js Cryptography Overhaul: Migrating from SHA-256 to Post-Quantum Algorithms | Markaicode
Learn how to upgrade your Node.js applications from SHA-256 to quantum-resistant cryptographic algorithms with practical code examples and migration strategies.
A Cryptography Engineer’s Perspective on Quantum Computing Timelines
The risk that cryptographically-relevant quantum computers materialize within the next few years is now high enough to be dispositive, unfortunately.
Encrypted Spaces — Research preview
An architecture for collaborative applications where data is encrypted and operations are cryptographically verifiable.
Soatok’s Informal Guide to Threat Models - Dhole Moments
After a long day of exhausting conversations about Hybrid Post-Quantum Cryptography, random jackasses trying to play gotcha with endpoint attacks against end-to-end encrypted messaging apps, and me…
Signal Triple Ratchet — Post-Quantum Secure Messaging Layer Stack
Interactive 3D visualization of Signal's Triple Ratchet protocol: PQXDH session establishment, Double Ratchet, SPQR post-quantum ratchet, and hybrid key mixing
Wave - Secure Messaging App
Privacy-first messaging with quantum-level encryption. No signup, fully decentralized, zero tracking.
DEF CON 33 - Post Quantum Panic: When Will the Cracking Begin, & Can We Detect it? - K Karagiannis
Cryptomator - Free & Open-Source Cloud Storage Encryption
Cryptomator is an open-source encryption tool for secure cloud storage. Protect your privacy for free on Dropbox, Google Drive, OneDrive, and more.
Hybrid Constructions: The Post-Quantum Safety Blanket - Dhole Moments
The funny thing about safety blankets is they can double as stage curtains for security theater. Art: CMYKat “When will a cryptography-relevant quantum computer exist?” is a question ma…
Sirraya One | Enterprise Decentralized Identity Platform
NIST-certified quantum-resistant identity with zero-knowledge proofs. Government & military-grade verifiable credentials.
How Google is Making Private AI Practical with Homomorphic Encryption
Today we're excited to showcase HEIR, the latest powerful tool added to our Private Computing Toolkit. HEIR is an open source compiler that unlocks cryptographically-sec…
