[tptacek]

We ran these challenges at Matasano with the public, under a system where you could only get the next 8 challenges after demonstrating that you'd solved the previous 8, after I wrote an internal guide for our consultants on the cryptographic vulnerabilities they should be capable of addressing on engagements. What you're reading there is basically an internal README. They got very popular (many, many people have solved all of them without additional prompting), but we didn't really invest any extra time in cleaning them up or refining their pedagogy.

[thenewwazoo]

…and thank you (all) for doing so. It’s my go-to motivation when teaching Rust to experienced programmers. It’s a raging success every time.

[tptacek]

I'm blown away by the response. In Sean and Alex's defense (especially Sean's), the writing got better in set 7 and, especially, set 8, which Sean was really careful about and which is clearly the crown jewel of the whole series.