https://n9o.xyz/tags/blind-decryption/ Recent content in Blind Decryption on Hugo -- gohugo.io en © 2026 Vaishnav Baraskar Mon, 14 Jul 2025 00:00:00 +0000 https://n9o.xyz/capturetheflag/blindspot/ Mon, 14 Jul 2025 00:00:00 +0000 https://n9o.xyz/capturetheflag/blindspot/ <h2 class="relative group">0x00 – Prologue <div id="0x00--prologue" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 ltr:-left-6 rtl:-right-6 not-prose group-hover:opacity-100"> <a class="group-hover:text-primary-300 dark:group-hover:text-neutral-700 !no-underline" href="#0x00--prologue" aria-label="Anchor">#</a> </span> </h2> <p>I saw &ldquo;ECDSA nonce reuse&rdquo; and knew we were about to crack something open real clean. When you’re dealing with ECDSA, one reused <code>k</code> is all it takes to rip the private key wide open. It’s not about breaking the algorithm—it’s about catching the dev slipping. And they slipped.</p>