OPC: contents of SignatureProperty

[MURATA Makoto]

I am studying digital signature in Office for the standardization
of XAdES.

I find that both Word 2007 and [MS-OFFCRYPTO] ignores a requirement
in 29500-2:2012.

13.2.4.1 "Modifications to the XML Digital Signature
Specification" in 29500-2:2012 specifies that "A
SignatureProperty element shall contain exactly one
SignatureTime child element".

However, Word 2007 creates a different child element.

      <SignatureProperty Id="idOfficeV1Details"
Target="#idPackageSignature">
        <SignatureInfoV1 xmlns="
http://schemas.microsoft.com/office/2006/digsig">
          ...
        </SignatureInfoV1>
      </SignatureProperty>

This appears to follow "2.5.2.5 idOfficeObject Object Element"
in [MS-OFFCRYPTO]

"A SignatureProperties element containing a SignatureProperty
element, which MUST contain a SignatureInfoV1 element that
specifies the details of a digital signature in a
document. The following XML Schema specifies the contents of
the SignatureProperty element: "

I think that there is a clear conflict here.

-- 
Regards,

Makoto
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