[xmlsec] dsig for opc container?

[Craig Hopson]

Aleksey,

I'm working on a project which requires me to verify the signature of an Open Packaging Convention (OPC) file.  This is a MS xml file format and the signing is done on that platform using .NET libraries.  I must verify the signature on OS X.  I have compiled xmlsec library using openssl.  Is there any library support for doing this?  Specifically, is the relationship transform defined (see PackageDigitalSignatureManager)?

Thanks for your help,
-Craig