Cryptography


Fluffy’s Adventure.


Challenges

🔐 OTPwned: Déjà Vu

The test file hadn’t just landed in the wrong place — it had landed somewhere.

Fluffy went in after it, through the back of the tar pit’s machinery, into a part of the network that didn’t have a welcome sign. What it had instead was The Encrypter™: a small terminal that turned messages into locked nonsense.

Fluffy fed it the same message a few times.

Quickly: same output. After a short wait: completely different.

He sat with that.

It’s not choosing a key, he thought. It’s reading a clock.

Which meant somewhere, something was keeping time — and the key was whatever that clock said. And clocks were something you could read too.

“Open Sesame…” he whispered.

Connect with SSH

Link your SSH key, then connect with: ssh [email protected]

🦫 Dam Breaker

“A dam is only as strong as the water it holds back. But what if you could convince the water to flow uphill?” — Fluffy 🦊

Unlocking the OTP vault, Fluffy discovered a map tucked away inside that led to a dam.

After escaping the tar pit, Fluffy followed the map along a digital stream to its source: a colossal hydroelectric dam shimmering in the heart of the server. A sign, written in corporate font, stated: “The B34verTrust Digital Security Dam: An Unbreakable Barrier.”

The dam’s systems were overseen by a grumpy old beaver named Roen, the Chief Engineer, who trusted nothing and no one.

Every command sent to the dam’s control system had to be authenticated with a special “seal” of approval. The engineer scoffed from his terminal, exclaiming,

“My secret key is buried deeper than any winter stash. No one gets past my dam!”

He, however, provided Fluffy a trusted and stamped guest credential to tour the dam. Fluffy had a feeling that Roen was hiding something in the control room, which required admin privileges to access.

Without knowing the secret that grants the seals of approval, would Fluffy be able to break in?

Connect with SSH

Link your SSH key, then connect with: ssh [email protected]

30-Day Scoreboard:

This scoreboard reflects solves for challenges in this module after the module launched in this dojo.

Rank Hacker Badges Score