XML Encryption strawman proposal

During the IETF48 meeting in Pittsburgh last week, there was an informal
get-together of
several people to discuss chartering an XML Encryption effort within the
W3C.
After the meeting, Brian LaMacchia sent me his example of a possible format
for the algorithm 
and keying information and I began documenting whatever thoughts about an
XML Encryption architecture entered my stream of consciousness.
Attached is the merged result.  This is, obviously, a very initial document,
but we
would appreciate hearing what you think.
 <<xmlencoverview.html>> 
Ed