The Matasano Crypto Challenges
Just a quick note: we have a good idea of how many people make it through these challenges versus how many start. As long as that ratio stays remotely sane --- and as long as the whole Internet doesn't secretly turn out to be full of people who can bust out crypto attacks better than most vulnerability researchers can, which is a concern because <i>an English professor finished these</i> --- we'll donate $20 to PIH or Watsi for everyone who finishes.<p>Sean, Marcin, and I are watching the cryptopals at matasano address, so if you have questions or get stuck on one of the later problems, don't hesitate to ask; the worst that'll happen is we'll take too long to reply.<p><i>Update: We WILL get to you. We're definitely getting your emails. All of your emails. All of the emails. Give us a little bit though.</i>