https://thepotato.tech/tags/radius/Recent content in Radius on Neil HanlonHugoen-USFri, 10 Jul 2026 18:30:00 -0400https://thepotato.tech/posts/the-wifi-cert-that-didnt-exist-an-hour-ago/Fri, 10 Jul 2026 18:30:00 -0400https://thepotato.tech/posts/the-wifi-cert-that-didnt-exist-an-hour-ago/<p>My laptop is on WiFi right now on a certificate that didn&rsquo;t exist an hour ago. I made the keypair, my own CA signed it, the private key went into my secret store, and the machine authenticated onto the 802.1X network and pulled a DHCP lease — all through code I&rsquo;d finished writing about twenty minutes earlier. I want to talk about the boring part that made it safe, because the boring part is the only part I&rsquo;d defend.</p>