This folder is a copy of the files posted by OpenXML Development Guru Wouter van Vugt as part of his post on signing OpenXML Documents using the packaging API. Retrieved from the wayback machine on 28 Nov 2017.
Wouter's original post was at https://blogs.infosupport.com/blogs/wouterv/archive/2007/02/24/Signing-Office-Open-XML-documents-using-the-Packaging-API.aspx, which now returns a 403.
I viewed his post at https://web.archive.org/web/20090802074306/http://blogs.infosupport.com/blogs/wouterv/archive/2007/02/24/Signing-Office-Open-XML-documents-using-the-Packaging-API.aspx and downloaded these files from https://web.archive.org/web/20081121052638/http://blogs.infosupport.com/files/folders/wouterv/entry11731.aspx