[OpenID] OpenID appropriate here?

[Isak Hansen]

I'm working on a web app that needs to authenticate with a 2nd system
as the user logged into #1.
#2 doesn't trust the first system (we do have full control over #1,
but need to support other #1-like clients that we cannot trust).

We want to avoid storing the users' plaintext password (for #2) in
#1's db. Asking them for a password on demand could work, but isn't
very convenient for the user.

Would OpenID work for us?


Regards,
Isak