Post-quantum crypto should be free, so we’re including it for free, forever

Cloudflare has announced that it now supports quantum-resistant cryptography. This marks a significant step forward in securing the internet against potential threats from future quantum computers, which could break many of today's widely used encryption algorithms. The company is making post-quantum key agreement available to all its customers as part of its efforts to prepare for the rise of quantum computing and protect data privacy. Cloudflare is currently supporting the Kyber algorithm, one of several candidates selected by NIST for standardization in 2024. Users can enable this feature using TLS 1.3 or HTTP/3 protocols. This implementation makes Cloudflare the first global CDN provider to offer quantum-resistant security features. In addition to supporting post-quantum cryptography, Cloudflare is also working on transitioning its internal systems and contributing to open source projects related to this technology. The company plans to release vendor-agnostic roadmaps later in 2023 to help other organizations upgrade their systems for quantum resistance. Overall, these moves by Cloudflare represent a proactive approach towards addressing the potential security risks posed by quantum computers and ensuring continued protection of users' data and privacy on the internet.