extend shibb SP authentication request validity

[Cantor, Scott]

>    Is there a way to increase the shibb SP authentication request validity period so that our SP is able to redirect the
> users to the relay state parameter after consuming the SAML assertion?

Has nothing to do with request validity. The use of in-memory storage for relay state is hardcoded to 10 minutes. There is no way to change it. You can file a RFE to expose it, and/or change the relayState option to cookie.

-- Scott