[xmlsec] selecting strart node from command line

[Aleksey Sanin]

Your XPath expression have to select a single start node. The error 
tells you that
the xpath expressiong you have used selected multiple or no nodes at 
all. In your case
I would *guess* that you got no nodes because you did not specify namespaces
(and /dsig:Signature and /Signature xpath expression select different 
nodes). Also
please note that for signatures, start node is expected to be 
<dsig:Signature/> node.

BTW, there is a good XPath tutorial with a lot of examples:
        http://www.zvon.org
You might want to look at it if you need to quickly find an Xpath expression
for your needs.

Aleksey


Jan-Olof Andersson wrote:

>Let me explain a little bit more...
>
>I want to make the signing to start later in the document with the signing.
>So I try to use xpath. But it always complains that I give the command in a
>wrong way...
>
>How should I write?
>
>Best regards
>  
>

D:\Archivos de programa\GnuWin32\xmlsec\libxmlsec-1.1.1.win32\lib>xmlsec
sign
--pkcs12 certificado.pfx --output signed_xml.xml --pwd xxxxx --node-xpath
/EnvioDTE/Signature/SignedInfo resum_caf_invoice_10.xml
Error: xpath expression evaluation does not return a single node as expected
Error: failed to load template "resum_caf_invoice_10.xml"
Error: failed to sign file "resum_caf_invoice_10.xml"