XMLSec support in PHP

I use libxml2 in PHP as almost a daily task, and I love it, but as my
company is going further and further into XML as a data transport/storage
format, I've become piqued at the idea of actually using xmlsec to securely
store and/or transfer our files and RPC data.

I know that there is an xmlsec project (http://www.aleksey.com/xmlsec/)
which is building off of or related to both libxml2 and OpenSSL, so I was
curious if anyone had started work to expose xmlsec functionality to PHP. I
know the xmlsec project listed above is fairly early on in its development,
but if someone knew of a proof of concept implementation of xmlsec in PHP,
I'd love to play with it.

If there isn't, has anyone started such a project, or are planning to?

Just curious. Thanks!

    Mark J. Hershenson
    [email protected]
    http://green-ant.com/