Landscape of Quantum Computing

Today, nearly two percent of all TLS 1.3 connections established with Cloudflare are secured with post-quantum cryptography. What once was the topic of futuristic tech demos will soon be the new security baseline for the Internet. In this blog post we’ll take measure of where we are now in early 2024, what to expect for the coming years, and what you can do today.

Homepage of dr. Bas Westerbaan, principal research engineer at Cloudflare, working on making the Internet post-quantum secure

There is no need to update symmetric key sizes as part of the post-quantum transition, due to the details of how Grover's algorithm scales. Most authorities agree.