The post-quantum future of web privacy
Source: Cloudflare Security
At a glance
The highest priorities for the transition to post-quantum cryptography are the basic building blocks of authenticated key-agreement protocols such as TLS. Without these building blocks in place, secure communication on the Internet will not be possible once cryptographically relevant quantum computers come online. However, today we rely on quantum-vulnerable cryptography for much more than TLS. Privacy Pass is a protocol used by site operators like Cloudflare to help protect applications from abuse. One way we do this is by rate limiting individual clients so that no one client consumes too m…