* I haven't played with exploit-exercises yet (definitely will when I get some downtime), but I've had a blast solving the challenges at http://io.smashthestack.org:84. They are hosted so no need to download VMs. They have a several more here that I haven't played with: http://smashthestack.org/
* I recently came across a computer security course which used CTF virtual machines for an assignment (you can download the VM and see how you do against Tufts University students): http://www.cs.tufts.edu/comp/116/assignments/a04.php
* Offensive Security's "Penetration Testing with BackTrack" (PWB) course uses a series of CTF challenges as the final exam.
* Any recommendations on any encryption challenges in this style?
We are seeing a return to the old guild system of masterpieces as proof of ability and learning aid. I couldn't be happier. I'd love to see a mash up between stackoverflow's gamification and Offensive Security certification/teaching process.
* I recently came across a computer security course which used CTF virtual machines for an assignment (you can download the VM and see how you do against Tufts University students): http://www.cs.tufts.edu/comp/116/assignments/a04.php
* Offensive Security's "Penetration Testing with BackTrack" (PWB) course uses a series of CTF challenges as the final exam.
* Any recommendations on any encryption challenges in this style?
We are seeing a return to the old guild system of masterpieces as proof of ability and learning aid. I couldn't be happier. I'd love to see a mash up between stackoverflow's gamification and Offensive Security certification/teaching process.