Loup Vaillant

This is my personal web site. I write mainly about programming.

Visit loup-vaillant.fr → RSS feedOn Hacker News Dec 2013 – Aug 2023

Despite advice to the contrary, I have implemented my own crypto for serious use. Here's how.

Chacha20 is a secure, fast, and amazingly simple encryption algorithm. Let's take a look.

So you want to roll your own crypto. Well, be careful. Be very careful.

Efficient elliptic curves tend not to have a prime order. This discusses the problems this causes, and the solutions.

Crypto is often treated like a black art only anointed experts can hope to wield safely. It's not. There are laws, and we can learn them.