If you’re curious how the real world cryptography works and how it is being broken, join us tonight at 19:00 in solving the Matasano Crypto challenge exercise set 1. The last time we went up to ex. 6 – we’ll recap the previous exercises if necessary, so feel free to join even if you missed the first meetups.  All you need is a basic familiarity with at least one programming language, 9th grade math knowledge and a laptop.

More info: http://cryptopals.com/
https://blog.pinboard.in/2013/04/the_matasano_crypto_challenges/