https://pnasis.gitlab.io/tags/coppersmiths-theorem/ Recent content in Coppersmith's Theorem on pnasis Hugo en-us Thu, 25 Jun 2026 23:16:35 +0300 https://pnasis.gitlab.io/posts/byuctf-2026-cryptography-writeups-part-1-hurtful/ Thu, 25 Jun 2026 23:16:35 +0300 https://pnasis.gitlab.io/posts/byuctf-2026-cryptography-writeups-part-1-hurtful/ <h2 id="introduction">Introduction</h2> <p>    A few weeks ago I participated in <a href="https://ctftime.org/event/3247">BYUCTF 2026</a>, a <strong>Jeopardy-style</strong> CTF organized by the BYU Cyberia club. I ended up solving a variety of challenges across different categories. As in previous competitions, I participated as the captain of <a href="https://ctftime.org/team/431287">Echelon Obscura</a>. After two days of solving challenges across multiple categories, our team placed 10th out of 509 participating teams, making this one of our strongest performances so far.</p> <p>    As readers of this blog probably know by now, I usually gravitate towards reverse engineering challenges. They are the ones I enjoy the most and, consequently, the ones I tend to document here. BYUCTF was no exception and most of the write ups that will follow in this series focus on reversing binaries.</p>