[jensC]

Yes, I've heard about the Matasano's Crypto Challenge, but want to recommend Coursera's Crypto courses too: https://www.coursera.org/course/crypto

[mikevm]

I've been thinking of taking it. Is it a rigorous crypto course at college level?

[dobbsbob]

Not really that rigorous, there are some MIT courses available on cryptography engineering you can find on the web.tv MIT internal video server I've taken that are really good, covers common mistakes, why you should never do in-browser nonsense Java crypto, side channels ect. They are all recent lectures.

There's also the implementation book on the Keccak NIST3 project website, same with their book on side channels and countermeasures.

There's also this: http://achs.cs.ucsb.edu/schedule.html which is a workshop in August on applied crypto and hardware which looks pretty amazing. University prof Patrick Schaumont always lists all upcoming applied crypto workshops https://twitter.com/pschaumont and he also has a lot of publications out: http://www.ece.vt.edu/schaum/pubs.html

[wglb]

It is a good course.

However, you will learn a whole other approach of how to break all things crypto from the Matasano course.