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Re: Revised Charter

From: Laurent Demailly <dl@hplyot.obspm.fr>
Date: Thu, 2 Nov 1995 19:48:30 +0100
Message-Id: <9511021848.AA08270@hplyot.obspm.fr>
To: Dave Raggett <dsr@w3.org>
Cc: http-wg%cuckoo.hpl.hp.com@hplb.hpl.hp.com
Dave Raggett writes:
 >   11) Defined semantics for metainformation
 >       o Title, Link, Base, Content-MD5, Content-Language, etc.
Sorry If I'm completly off base but could this be changed
into "Content-Checksum:". I'd rather not tie MD5 particular
*algorithm* to the general 'checksum' *functionality*, (just in case
MD6 pops out in few monthes for instance...) {Though I currently use
MD5 as the algorithm currently}

*** "a la draft" definition:
Content-Checksum = "Content-Checksum" ":" 1#(checksum)

checksum = checksum-algorithm "=" checksum-value
checksum-algorithm = "MD5" | extension-algo
(you can define new checksums, like MD4, MD6 (!) unix sum,...)
for algorithm MD5 : checksum-value = 32 characters hex ascii coded MD5

for instance for a message content of "this is a test\n"
you get :
HTTP/1.0 200 Document follows
Server: datasrv/dl2.6d99
Last-Modified: Mon, 16 Oct 1995 15:42:06 GMT
Content-Type: text/plain
Content-Length: 15
Content-Checksum: MD5=e19c1283c925b3206685ff522acfe3e6

this is a test

Ps : yes I know there is an RFC about Content-MD5 Mime header, but it
is wrong imo (because it is a too general thing to be tied to a
particular algorithm,...)

Laurent Demailly * http://hplyot.obspm.fr/~dl/ * Linux|PGP|Gnu|Tcl|...  Freedom
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Received on Thursday, 2 November 1995 10:54:19 UTC

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