Labs / Rail Fence
- Daily Challenge
- Released 16 Jul 2025
The lab needs to be started first.
Step 1: Click on the green button to Start the Lab
Step 2: Hack the URL or IP of the lab
Step 3: Use your skills and logic to find the flags!
Need help to start?
Daily Challenge
Rail Fence - Challenge Description
Challenge Overview
A message has been encrypted using the Rail Fence cipher. Your task is to decrypt the message to reveal the hidden flag in UUID format. The Rail Fence cipher is a transposition cipher that rearranges the characters of the plaintext.
Learning Objectives
- Learn about transposition ciphers
- Understand Rail Fence cipher mechanics
- Practice manual decryption techniques
- Develop pattern recognition skills
Challenge Details
The encrypted message uses a specific number of rails in the Rail Fence cipher. You need to determine the number of rails and decrypt the message to find the flag.