Introducing CFSSL - CloudFlare's PKI toolkit

Cloudflare introduces an open-source toolkit called CFSSL for managing TLS/SSL certificates. The tool is used internally by Cloudflare and can be employed as a web service with a JSON API or as a command line tool. CFSSL simplifies the process of creating certificate bundles, which are essential for website security and speed. It helps in picking the right chain of certificates to balance performance, security, and compatibility. The tool is also capable of functioning as a Certificate Authority (CA) by covering basic features like creating private keys, building CSRs, and signing certificates. Cloudflare's mission with CFSSL is to help build a better web by making the process of managing SSL certificates easier.