You can definitely do it with the library itself. The xmlsec
command line tool is somewhat limited. You can try to use
--node-xpath option though.

Aleksey

On 1/7/12 6:39 PM, Leonardo Herrera wrote:
Hello,

I'm trying to verify a document that contains multiple signatures; I
cannot modify the structure of the document.

Searching through the archives, I found the following response from
Aleksey regarding this very same problem (this format is used for
electronic invoicing in Chile):

The xmlsec1 utility tries to find the ds:Signature element
in the sub-tree specified by --node-id or --node-name
parameter. The document you have looks as follows (irrelevant
pieces are removed):

<EnvioDTE>
        <SetDTE ID="DTE1272374641984">
                <DTE>
                        <Documento ID="F185T33">
                        </Document>
                        <ds:Signature>
                        </ds:SignedInfo>
                </DTE>
        </SetDTE>
        <ds:Signature>
        </ds:Signature>
</EnvioDTE>

I am not exactly sure why the first command verified something
(I would expect it to do nothing since there are no signature nodes
in the subtree). But the second command correctly finds the
first signature element in the subtree specified by the --node-id
or --node-name parameter (BTW, you just need one parameter :) ).

For documents with multiple signatures, I strongly recommend to
put ID attribute directly into<ds:Signature>  node. This way you
can easily specify the right signature node to sign or verify.

Regarding the error about xpointer(), please read section 3.4
from FAQ

http://www.aleksey.com/xmlsec/faq.html

Aleksey

 From what Aleksey wrote, it appears that xmlsec cannot verify the
signature directly under SetDTE because it will find the one under
DTE first. Is possible to ignore the first signature and make
xmlsec read the second one when verifying? I'm currently using

        xmlsec --verify \
        --id-attr:ID http://www.sii.cl/SiiDte:SetDTE \
        dte_set.xml

Regards,
_______________________________________________
xmlsec mailing list
[email protected]
http://www.aleksey.com/mailman/listinfo/xmlsec

Reply via email to