Introduction Lava lamps in the Cloudflare lobby Courtesy of @mahtin As some of you may know, there's a wall of lava lamps in the lobby of our San Francisco office that we use for cryptography. In this post, we’re going to explore how that works in technical detail. This
Randomness 101: LavaRand in Production
Introduction Lava lamps in the Cloudflare lobby Courtesy of @mahtin As some of you may know, there's a wall of lava lamps in the lobby of our San Francisco office that we use for cryptography. In this post, we’re going to explore how that works. This post assumes no
Understanding Our Cache and the Web Cache Deception Attack
About a month ago, security researcher Omer Gil published the details of an attack that he calls the Web Cache Deception attack. It works against sites that sit behind a reverse proxy (like Cloudflare) and are misconfigured in a particular way.