This is something I&#x27;ve had the occasion to discuss before, and it&#x27;s a good idea not because &quot;it&#x27;s ssh&quot; or &quot;it&#x27;s decentralized&quot; (those are just good benefits), but because it moves the authentication to an <i>actual authentication protocol</i> and, were it to catch on, would have to be done from the browser itself.<p>Does this ring a bell? That&#x27;s right, it&#x27;s BrowserID ladies &amp; gents. I&#x27;ll never let this go, Persona was a <i>great</i> thing for the web and its death is mourned.<p>I think I&#x27;ve seen ssh auth implemented before but this is the smoothest POC yet. Your next step: Make a firefox extension that integrates this, as a proof of concept for in-browser authentication.