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Re: HTTP/1.1 + Digest

From: Paul Hoffman <paulh@imc.org>
Date: Thu, 29 Aug 1996 11:24:24 -0700
Message-Id: <v0300780bae4b8c4e5972@[]>
To: Larry Masinter <masinter@parc.xerox.com>, http-wg%cuckoo.hpl.hp.com@hplb.hpl.hp.com
X-Mailing-List: <http-wg@cuckoo.hpl.hp.com> archive/latest/1515
At 3:41 PM -0700 8/27/96, Larry Masinter wrote:
>Writing MUST instead of SHOULD in the specification is not any way to
>force some vendor to either implement or not implement something.

I strongly disagree. Noncompliance to a spec is a very big marketing force.

>spec should say what makes sense, not what is politically

-It makes sense to stop sending passwords in the clear.
-It makes sense to have *a single way* to stop sending passwords in the clear.
-It makes sense to require that any browser that allows a user to send a
password allow that user to send it securely.
-It is not politically expedient to try to force the largest manufacturer
do anything. This argument is a (dare I say it?) red herring.

>We should write "MUST" if non-compliance causes systems to

The IESG has told us to consider security part of the system. Sending
passwords in the clear breaks the security system.

>I think there are too many "MUST"s in HTTP/1.1, but agreed to wait
>until the review for "Proposed" -> "Draft" to review them. I don't see
>any reason to add one here, though.

I disagree, and it seems like the rough consensus so far is to use MUST.

>has been pointed out in many cases, Basic authentication is as safe as
>Digest if used in conjunction with some other one-time password system
>(SKey, SecurID, etc.).

Huh? It has been pointed out that Basic authentication does *not* work well
with OTP because every transaction is re-authenticated.

>I think we're deluding ourselves if we think we can require "MUST

I strongly disagree.

--Paul Hoffman
--Internet Mail Consortium
Received on Thursday, 29 August 1996 11:26:28 UTC

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