Week 1 - Australian Cyber Security Games - 2025

Hues of Obscurity

By Raahguu (Joshua Finlayson)0 min read

Description

An unusual signal has been intercepted — its contents painted in mystery. Decrypt what the eye cannot see.

Attatched Image

Solution

This image is a one-to-one subsitution cipher called HexaHue. Dcode has a decoder here https://www.dcode.fr/hexahue-cipher

Decoding the cipher gets you the flag cysea{5h4p3s_4nd_c0l0ur5}

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