Obedient Cat Description This file has a flag in plain sight (aka "in-the-clear"). Download flag. # cat flag picoCTF{s4n1ty_v3r1f13d_f28ac910}"sanity verified" Python Wrangling Description Python scripts are invoked kind of like programs i…

Easy Peasy | 40 points Tags: AUTHOR: MADSTACKSDescription A one-time pad is unbreakable, but can you manage to recover the flag? (Wrap with picoCTF{}) nc mercury.picoctf.net 58913 otp.pyotp.py #!/usr/bin/python3 -u import os.path KEY_FILE …

Mind your Ps and Qs | 20 points Tags: AUTHOR: SARA Description In RSA, a small e value can be problematic, but what about N? Can you decrypt this? values# cat values Decrypt my super sick RSA: c: 8430448976638478414763197116397728613903293…

grep 2 上の方の"shell"っていうリンクからサーバには入れるらしい。 $ cd /problems/grep-2_3_826f886f547acb8a9c3fccb030e8168d/files $ ls files0 files1 files2 files3 file4 files5 files6 files7 files8 files9ディレクトリがいっぱいあるのでとりあえ…

久しぶりにCTFをしてみる。 https://2018game.picoctf.comflagは、picoCTF{FLAG} Forensics Warmup 1 flag.zipファイルが配られる。 $ unzip flag.zip Archive: flag.zip inflating: flag.jpg $ file flag.jpg flag.jpg: JPEG image data, JFIF standard 1.0…