https://randx.tokyo/tags/auth/ Recent content in Auth on RANDX Hugo en-US Thu, 30 Jul 2026 12:00:00 +0900 https://randx.tokyo/posts/what-is-passkey/ Thu, 30 Jul 2026 12:00:00 +0900 https://randx.tokyo/posts/what-is-passkey/ <h2 id="tldr"> TL;DR <a class="heading-link" href="#tldr"> <i class="fa-solid fa-link" aria-hidden="true" title="Link to heading"></i> <span class="sr-only">Link to heading</span> </a> </h2> <ul> <li><strong>Definition:</strong> A cryptographic password replacement using device-local biometrics or PINs.</li> <li><strong>Security:</strong> Phishing-resistant via &ldquo;origin binding&rdquo;; credentials cannot be stolen from server breaches.</li> <li><strong>Efficiency:</strong> Sign-ins are up to 6x faster than passwords with a 93% average success rate.</li> <li><strong>Value:</strong> 81% reduction in login-related help desk incidents for enterprises.</li> </ul> <h2 id="what-is-a-passkey"> What is a Passkey? <a class="heading-link" href="#what-is-a-passkey"> <i class="fa-solid fa-link" aria-hidden="true" title="Link to heading"></i> <span class="sr-only">Link to heading</span> </a> </h2> <p>Technically, a passkey is a <strong>discoverable FIDO credential</strong> built on the WebAuthn standard. It operates on <strong>asymmetric cryptography</strong>, generating a unique public-private key pair for every account.</p>