Friday, 5th July 2019

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Cryptography Lessons

Hannah Dwan

Hannah Dwan @hoeyboey

Hannah Dwan is a developer at Happy Bear Software! She used to be a games journalist, but abandoned the glitz and glamour of esports in favour of pull requests and documentation.

The Matasano Crypto Challenges - or Cryptopals, to give them their much kinder, Saturday morning cartoon name - are a series of coding challenges, made by Matasano Security (now a part of NCC group). They challenge you to think about cryptography, security, and teach you the motions of how to encrypt, decrypt, and attack.

It’s not wildly complex, it’s not a set of logic systems above everything you already know if you can put together FizzBuzz. As an apprentice, a key part of my job is to learn - Cryptopals, regardless of your own expertise, is one of the most rewarding ways to learn Ruby, to learn logic, and to learn how all the encryption you rely on works.