John The Ripper is a password cracking tool. Compiling it for Mac was working fine until Apple removed the openssl headers. Here are instructions for building John The Ripper on OS 10.11 El Capitan.

I’m assuming you know how to run some basic shell commands in Terminal. If you don’t know what that is, and don’t know how to get a shell, then this won’t make much sense to you!

Before you begin, ideally, you should get all the tools you need to compile things on your mac. Continue reading →