<div dir="ltr">I think it's an interesting idea. It would be a great fit for Let's Encrypt, and it seems they have already been thinking about it:<div><br></div><div><a href="https://community.letsencrypt.org/t/if-when-will-le-support-onion-addresses/341">https://community.letsencrypt.org/t/if-when-will-le-support-onion-addresses/341</a><br></div><div><br></div><div>Keep in mind traffic to .onion hidden services is already encrypted via Tor. This limits the usefulness of SSL/TLS somewhat.</div><div><br></div></div>