Quick write-up because this first part of the RSA challenges at BKP this year was trivial. Writing up mostly as a way to show how automation can help you a lot when solving CTF challenges. Even on the level of Boston Key Party which, as I re-remembered this week, is a pretty damn hard CTF.

The second mobile reversing challenge of BSides SF CTF. Slightly harder than the first but only just. Here’s the clue and APK:

Quick challenge for a quick 250 points. So hopefully a quick writeup! Here’s the clue:

HackIM time again. This year seemed slightly better organized than last year. Some nice challenges. I don’t think this challenge was worth 350 points but I’ll document my solution anyway in sort of a “what not to do” when making a crypto challenge. Here’s the clue including the image they gave as a description:

Cool challenge that I’ve wanted a reason to solve for a while because I always miss these in CTFs of the past (Tokyo Westerners CTF had a good, harder one previously).