SignAssertions action not needed ?

[Tom Zeller]

> Also related: For message signing, the presence/absence of the
> SecurityParametersContext data is what determines whether signing happens,
> pure and simple.  Whether the context is present or has a particular
> -Parameters is (presumably) determined by the various signing and encryption
> flags from the profile config (or whatever, e.g  however we implement
> 'conditional' - or not).

If SecurityParametersContext is present but
getSignatureSigningParameters() returns null, that is an error,
correct ?