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Article #1701

Re: kerberos and the ISO protocol standards

#1701
From: Robert Cole
Date: Mon, 18 Dec 1989 09:28
57 lines
3216 bytes
> It is too bad that the "standards" efforts going on in the
> communications area are not codifying tried-and-true experience --
> which I assert is the proper and correct role of "standards" activity.
> Instead it seems that the so-called standards groups insist on
> performing reasearch.

> What is wrong with "standardizing" Kerberos?  A standard only provides
> a clear statement of the workings and interfaces of a mechanism -- it
> is not an endorsement that it is the best way to solve a problem.  If
> two people then chose to use it, they then have a common frame of
> refererence.  And they will be able to get on with whatever larger job
> they have at hand.

> Again, I believe that the "standards" groups are suffering from a very
> serious, and very expensive case of "not invented here".

> 				--karl--

You seem to be fairly convinced that standards makers are all
luddites, no doubt you have been attending too many standards
meetings. However I will try to explain why input to standards gets
changed, and why it is not as expensive as you would believe.

First, you must realise that having more than one standard for
anything is as bad as having no standard. A manufacturer will have to
support all standards in a product. Lets imagine there are 3 standards
for screw threads, one metric and two imperial. Then a nut
manufacturer has to meet all three standards in all sizes of nuts,
regardless of demand! The same would be true if there were several
authentication standards. If you sold a product requiring the use of
authentication you would have to asupport use of all the standards
because you could not anticipate which authentication standard your
customers authentication server would use at any time. Clearly this is
expensive and you know who will pay.

Given that only one standard will be acceptable, you then have to decide
on it in a democratic manner. There are two pressures on a standard:
1. from those with existing activity in the area, I am fairly
confident that Kerberos is not the only authentication system which
has vested interests;
2. from those who want to see the standard somewhat future-proof by
making the standard more general than any individual application would
seem to warrant.

Given that any input to a standard must be from a vested interest with
a limited application, or from a theoretical standpoint looking for
generality you can see that if democratic principles are to apply
then there must be compromises. Consequently you cannot have back what
you first thought of.

I hope you agree that democracy and economics are best served by a
single standard that meets the perceived needs of the widest
community.

Have a happy Christmas,
Robert.
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From: rhc@HPLB.HPL.HP.COM (Robert Cole)
Newsgroups: comp.protocols.iso
Subject: Re: kerberos and the ISO protocol standards
Message-ID: <8912180928.AA07892@rcole.hpl.hp.com>
Date: 18 Dec 89 09:28:15 GMT
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