PUBLIC MARKS from roberto with tag auth

This is yet another distributed identity system, but one that's actually distributed and doesn't entirely crumble if one company turns evil or goes out of business. A yadis-enabled site/blog lets you authenticate using your existing login from your homesite (whether that's on your own server or a hosted service) without giving away your password to the 3rd-party site you're visiting, or making a new account there, or giving away your email address.

SSL certficates for authentication.