XML Security RELAX NG Schemas from W3C

Dear colleagues,

I am working with W3C to create RELAX NG schemas for XML digital
signature and other things from the XML Security Working Group.   The 
current draft is available at:

http://www.w3.org/2008/xmlsec/Drafts/xmlsec-rngschema/Overview.html

I hope that both ODF and OOXML use them.

Cheers,
Makoto