How to signing the request and send it to IdP

[Peter Schober]

* Tejash Mistry <Tejash.Mistry at FastTrackTeam.com> [2013-06-12 16:44]:
> I am also able to access different IdPs through this configuration but one
> IdP wants us to send sing request to their server. Could anyone let me know
> how I can sign a request and send it to particular IdP please?

You'll need to make yourself familiar with the existing documentation.

Start here: https://wiki.shibboleth.net/confluence/display/SHIB2/Home

Configure https://wiki.shibboleth.net/confluence/display/SHIB2/Configuration
SP: Talk to a New Identity Provider
https://wiki.shibboleth.net/confluence/display/SHIB2/NativeSPAddIdP

Ibid.: Different cryptography: Add a <RelyingParty> element to the
<Application> configuration
https://wiki.shibboleth.net/confluence/display/SHIB2/NativeSPApplication

https://wiki.shibboleth.net/confluence/display/SHIB2/NativeSPApplication#NativeSPApplication-RelyingPartyAttributes
signing ("true", "false", "front", or "back") (defaults to "false")
  Controls outbound signing of XML messages. If "true", all are
  signed. If "front", only front-channel messages are signed. If "back",
  only back-channel messages are signed.

-peter