Message: Signature required

[Peter Schober]

* TchouK <royer.matthieu at gmail.com> [2013-05-03 09:25]:
> When I tried to add a line like in the example in my <applicationdefault>
> section of shibboleth2.xml (<RelyingParty Name="SpecialFederation"
> keyName="special.example.org"/>) with signing="true" option my shibboleth is
> not starting.

What's the result of `shibd -t` on the console, then?
(For MS-Windows systems it's `shibd.exe -check`, IIRC).

For your use case it would be as simple as:
<RelyingParty Name="entityId-of-IdP" signing="true"/>
-peter