Showing posts from 2022

More Password Cracking Tips: A Defcon 2022 Crack Me If You Can Roundup

 “We do not learn from experience... we learn from reflecting on experience.”   -- John Dewey Introduction: KoreLogic's Crack Me if You Can (CMIYC) is one of the oldest as most established password cracking competitions. Held every year at Defcon, it serves as a great way to pull together password enthusiasts from all over the world and provides a shared use-case that drives password cracking tool development throughout the rest of the year. This year I competed as a street team and managed to finish in 12th place: Now that I've had a week to look back on things, there certainly are strategies where I could have done better. The first is with my cracking setup. I had two systems I used. My primary cracking system was still my laptop running an Ubuntu VM utilizing WSL on a Windows 11 install. My secondary system was the computer I described setting up in this blog post . Primary Laptop: CPU: i7-8640U CPU RAM: 16 GB Storage: 500GB SSD   Desktop Computer: CPU: Intel i5-7600k, 1 p

Password Cracking Tips: A CrackTheCon Roundup

“It is common sense to take a method and try it. If it fails, admit it frankly and try another. But above all, try something.” ― Franklin D. Roosevelt CrackTheCon, a password cracking contest run by CynoSurePrime, just finished. I competed as a Street team and I was really impressed. This was a well run contest, and I felt was very friendly to new and experienced password crackers alike. At least from a player's perspective, the infrastructure was rock solid, there was a great variety of challenges, and the difficulty level had a good gradient. Thanks to everyone who helped put this contest together! My computer setup for this challenge was limited. I performed all my cracking on one laptop with no GPU support. You read that right, I was rolling old school with a pure CPU cracking session. Because of that, my primary password cracking program was John the Ripper, which has a ton of features that I prefer when I can't just let HashCat burn through some GPUs. While my operating s