Challenges

Compressed Thoughts

Malware authors love compression. The magic bytes 1f 8b are your friend. Ciphertext:

Double Trouble

Sometimes attackers apply the same encoding multiple times to evade detection. Simple but effective. Ciphertext:

Escaped Reality

Web applications love to encode special characters. Sometimes the encoding gets applied in unexpected orders....

The ROT Side

ROT13 is childs play. But what about its more obscure cousin that handles the full printable ASCII range? Ciphertext:

Basic Encoding Soup

Every hacker needs to recognize common encoding schemes. This challenge layers three of the most common encodings...