Capture The Flags (CTFs) are competitions that involve many aspects of information security: cryptography, steganography, binary analysis, reverse engineering, mobile security and others.

There are two common CTF styles: jeopardy and attack-defense. polictf is a jeopardy CTF: teams are presented with a set of specific questions (i.e., challenges) in a range of categories.

  • The objective of each challenge is to recover a special string called flag.
  • polictf flags are in the format flag{}. The whole string including flag{ and } needs to be submitted as flag.
  • Teams gain points for every solved challenge.
  • Some challenges may be initially locked, and can be opened only after some team solve unlocked challenges.