"The support document, provisioning page and authentication page must all be available over HTTPS, and the server's SSL certificate must be certified by a trusted CA whose certificate is in the standard Mozilla certificate bundle."
I suspect you're still stuck in the "users will just use somebody else as their identify provider" trap. We've seen where that leads - it gave us Hotmail, GMail, Facebook, G+, "MS passport", and the like. Persona, on the other hand, correctly allows anybody to host their own identity - iff you can pay for it.
"millions of users"
Stop with the narrow thinking - that's not the only use-case for encryption, as the internet is not a many-to-one medium like TV. The personal website I put up for my friends should be encrypted, just like everything else we send over the net.
"The support document, provisioning page and authentication page must all be available over HTTPS, and the server's SSL certificate must be certified by a trusted CA whose certificate is in the standard Mozilla certificate bundle."
I suspect you're still stuck in the "users will just use somebody else as their identify provider" trap. We've seen where that leads - it gave us Hotmail, GMail, Facebook, G+, "MS passport", and the like. Persona, on the other hand, correctly allows anybody to host their own identity - iff you can pay for it.
"millions of users"
Stop with the narrow thinking - that's not the only use-case for encryption, as the internet is not a many-to-one medium like TV. The personal website I put up for my friends should be encrypted, just like everything else we send over the net.