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Subject: RE: [ebxml-msg] Compression/Performance Roundup

Sounds like enough to get started to me! For the face to face?

I would add that we should really investigate S/MIME (CMS) 
as an alternative to XML encryption for "bulk" (payload?)
xml encryption. I am wondering whether XML encryption
should be mainly reserved for "smallish" items within
XML documents (passwords, pins, credit card numbers and
small risky items like that); this worry is based 
on the base64 expansion issue
that you are not wild about, and that
occurs for basically any xmlencryption process,
as far as I can tell.

I saw that the XMill compression approach is largely
superceded from performance standpoint-- thanks for the reference, Matt.

Dale Moberg

-----Original Message-----
From: Matthew MacKenzie [mailto:matt@mac-kenzie.net] 
Sent: Friday, January 31, 2003 10:56 AM
To: ebxml-msg@lists.oasis-open.org
Subject: [ebxml-msg] Compression/Performance Roundup

During the last meeting, we discussed the topic of compression of ebXML 
Messages.  The discussion branched out into a dialogue on performance 
of message transmission and processing.

 From that dialogue, I've compiled a summary of the issues that we need 
to discuss for version 3.0.  These issues are really just talking 
points for the general topic of performance, which a v3 implementation 
of nearly anything has to take into account.

- Compression algorithms for use with MIME "Transfer Encoding".
- XML Compression
- Compression and its relationship to encryption and digital signature.
	- Compression before encryption allegedly provides more
throughput at 
the expense of CPU.  Do we spec comp-before-enc, or investigate S/MIME?
- Specification of performance measures for both SMTP and HTTP.
- Review of current "profile" section in the spec with an eye toward 
integrating performance considerations into various profiles, e.g.


If I missed anything, please add to this.


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