Files
mosaic/description.yml
2026-01-14 23:34:39 +01:00

22 lines
997 B
YAML

mosaic:
name: "mega obfuscated secure advanced information communication"
author: "cato447"
difficulty: easy
description: "The TAs creating the endterm exam have suffered in the past from leaked drafts.
To protect themselves against further leaks they invented the *mega obfuscated secure advanced information communication* (mosaic) system.
The mosaic system encodes emails as QR-Codes and then applies the ultra secure protection algorithm.
We found a QR-Code that was not disposed properly in a waste bin.
Can you decipher the email?
Hint:
1. The mosaic algorithm adds decoy fake data to the QR-Code. It is mega secure after all!
2. Save yourself from the headache of searching for QR-Code libraries. My solution uses: https://github.com/NaturalHistoryMuseum/pyzbar"
category: misc
flag:
content: "h4tum{sm4ll_key_spac3s_are_deadly}"
dynamic: true
files: dynamic
dependencies:
type: debian
system: ["python3"]
python: ["pillow", "qrcode"]