Posted by sanduhrs on October 18, 2012 at 8:46am
A Persona Identity Provider (IdP) is a domain which directly signs and certifies the identities of its users. Because Persona identities are based on email addresses, any domain which offers email to its users is a natural fit for becoming an IdP.
If you have a domain name, you can become a Persona IdP by implementing support for the underlying BrowserID protocol.
– https://developer.mozilla.org/en-US/docs/Persona/Identity_Provider_Overview