https://chillbruh.rocks/tags/tor/Recent content in Tor on Jesse's BlogHugoenjesse@chillbruh.rocks (chillbruh)jesse@chillbruh.rocks (chillbruh)<a href="https://creativecommons.org/licenses/by-nc/4.0/" target="_blank" rel="noopener">CC BY-NC 4.0</a>Wed, 22 Apr 2026 19:52:46 -0400https://chillbruh.rocks/posts/private-communication-system-jctf-vi/Wed, 22 Apr 2026 19:52:46 -0400jesse@chillbruh.rocks (chillbruh)https://chillbruh.rocks/posts/private-communication-system-jctf-vi/<ul> <li><strong>Challenge Category:</strong> Miscellaneous</li> <li><strong>Difficulty:</strong> Hard</li> <li><strong>Developer:</strong> Me (chillbruh)</li> </ul> <h1 id="tldr">TL;DR</h1> <p>I created a miscellaneous challenge composed of three mini-challenges involving steganography, cryptography, and open-source intelligence. The site was hosted as a hidden service on <a href="https://www.torproject.org/">Tor</a>. On the front page, you had to identify zero-width characters hidden at the end of the subtitle and convert their pattern from zero-width characters to binary, then to ASCII. This revealed the location of our target&rsquo;s Russian-language personal blog. In one post, the next URL appeared encrypted with the VIC cipher. The information needed to decrypt it was available in the same post and in a public PGP key in another post. Decryption revealed the final URL: an archived chatroom. Our target communicates with an older family member who instructs him to contact a server using a token found in his Telegram bio.</p>