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All labs/google-ctf-2024-idea

Crypto

Google CTF 2024: IDEA

A 3-round IDEA encryption service with a limited number of credits that lets you flip bits of its secret key between queries. Guess the original key to get the flag.

Not startedDockercommit a7dfbcdx86_64 · aarch64Secret

Objective

Retrieve the flag from the challenge service.

The brief for this lab lives in its repository.

Submit evidenceSecret

Launch the lab

Open it in the Cyber CTF launcher, or run it yourself with Docker Compose.

Open in the launcher Source code

›Run it manually

$git clone https://github.com/CyberCTF/google-ctf-2024-idea && cd google-ctf-2024-idea && docker compose up -d

Without the launcher, the lab uses its public development evidence: great for practice, but it won't complete the lab.

Details

Category: Crypto
Difficulty: Hard
Evidence: Secret
Runtime: Docker
Runs on: x86_64, aarch64
Commit: a7dfbcd
Repository: CyberCTF/google-ctf-2024-idea