I wrote two challenges for Google CTF qualifier - Underhanded and Merkurated. There were 17 and 37 solves during the contest time. I will cover both in this blog post. Underhanded Challenge Summary Proudly sharing our Python implementation of AES. By the way, we sneakily hid a backdoor. Can you see sharp and see what went wrong? Attachments: underhanded.zip We are given yet another Python implementation of AES.
