short term cookie storage within a flow

[Cantor, Scott]

> What's the best way to store a small bit of information in the client's
> session (the cookie one) from an authn flow?  I'd like to save a value
> before I send a form to the user and recover the value when the form is
> returned.  It's not a value I can put in the form.:wq

Are you talking about between separate requests to the IdP (like SAML requests) or just within the top level flow?

-- Scott