https://moza369.github.io/tags/n7ctf/Recent content in N7ctf on MOZAHugoen-usSun, 12 May 2024 00:00:00 +0000https://moza369.github.io/ctfs/n7-ctf-2024/Sun, 12 May 2024 00:00:00 +0000https://moza369.github.io/ctfs/n7-ctf-2024/<h1 id="n7-ctf">N7 CTF</h1> <p>The <strong>N7 CTF</strong> was a Capture The Flag competition featuring challenges from several categories, including <strong>Web, Cryptography, Steganography, and Reverse Engineering</strong>.</p> <p>In this writeup, I will cover the challenges I solved and explain the techniques used to obtain each flag.</p> <hr> <h2 id="cryptography">Cryptography</h2> <h3 id="challenge-1--custom-encryption">Challenge 1 — Custom Encryption</h3> <h5 id="challenge-overview">Challenge Overview</h5> <p>For the first crypto challenge, we were given two Python files:</p> <ul> <li><code>message.py</code></li> <li><code>output.py</code></li> </ul> <p>The first step was to inspect the encryption algorithm.</p>