We further Cloudflare's mission to help build a better Internet by melding research with implementation Latest Research Updates → subscribe to our quarterly newsletter A next-generation Certificate Transparency log built on Cloudflare Workers Learn about recent developments in Certificate Transparency (CT), and how we built a next-generation CT log on top of Cloudflare's Developer Platform. Open-sourcing OpenPubkey SSH (OPKSSH): integrating single sign-on with SSH OPKSSH (OpenPubkey SSH) is now open-sourced as part of the OpenPubkey project. Prepping for post-quantum: a beginner’s guide to lattice cryptography This post is a beginner's guide to lattices, the math at the heart of the transition to post-quantum (PQ) cryptography. It explains how to do lattice-based encryption and authentication from scratch.