[xmlsec] Help by References

[Aleksey Sanin]

> 
> D:\XMLSec\libxmlsec-1.2.8.win32\bin>xmlsec sign --crypto mscrypto D:\XMLSec\libxmlsec-1.2.8.win32\bin\rechnung.xml
> func=xmlSecTransformEnvelopedExecute:file=..\src\enveloped.c:line=108:obj=enveloped-signature:subj=unknown:error=34:same document is required for transform
> : ;last error=0 (0x00000000);last error msg=The operation completed successfully.

By definition, Enveloped Transform can be applied *only* to the current
document (see XML DSig spec for details).

Aleksey