I think this discussion is slightly over the heads of the crowd that
we could call "users".  For that lot, using the SSL model we can only
hope that the CAs represensented in browser truststores do
their job.  BTW, VeriSign is a name brand for the _buyers_ of SSL
certificates but (in the browser environment) not for relying
parties of the consumer kind.

I know that this is the opposite on how PKI trust was intended to
work but that is the reality.

It might be of interest to note that Microsoft in their latest effort
to rule the world using "InfoCards" deprecates the idea of using
SSL certificates and instead tout organization-certificates as it is
really not the CA you are after, but knowing that you are talking
to the right partner.

If this list believe that users should do conscious decisions on what
CAs to trust you are on the wrong track as this is impossible
to do for mere mortals.  A possible solution would be that you for
a fee "outsourced" CA trust decisions to a party that have this as
their prime business.  Such a model would in fact add considerably
more interesting stuff to the plot than just CA validity.  It could
actually claim that a reputation of an organization your are about
to contact is not the best.

Anders R

----- Original Message ----- 
From: "Ian G" <[EMAIL PROTECTED]>
To: <[email protected]>; "Ram A Moskovitz" <[EMAIL PROTECTED]>
Cc: "Duane" <[EMAIL PROTECTED]>
Sent: Saturday, May 21, 2005 14:55
Subject: The Worth of Verisign's Brand


On Saturday 21 May 2005 02:22, Ram A Moskovitz wrote:

> You have repeatedly argued that the value of brand and reputation
> plays into a CA's behavior. Here you are saying that a CA would toss
> its reputation to keep one of it's small (revenue size) customers
> happy.

Correct on both counts.  Now, you are implying that
there is a contradiction in these two statements.

There is none.  In the current market for CAs, reputation
is not that important, it is more a missing element that
is believed to be important by those CAs that grew up
in the old model.  If you want a cite, see Amir&Ahmad's
paper where they test the brand of Verisign and come
up confused.

Reputation *could* be very important to to play into
a CA's behaviour, but before reputation can do that,
it has to enter the public's mind.  In order to do that,
the browser should present the brand of the CA, as
is done in the screen shots in that paper.  There are
other ways, but this is the most cost-effective that I
can think of (c.f., Intel Inside).

Now, I know many of you believe that this original
Netscape security model is bad.  All I can say is this
is how brand works - you stick the logo everywhere
that is important, that creates the name-brand-reputation
relationship in the consumer's mind, and that then leads
to the brand becoming valuable, which finally places
an onus on the company to protect its valuable brand.

By doing the right thing for the customer.  Brand is
inextricably linked to capitalism and giving the
consumer the ability to vote with their dollar or euro;
the alternate is "we know better" and that is always
related to extra costs and no delivery of service
because we know better can't work in practice.

As far as consumer brands are concerned, Verisign
could sell its cert division tomorrow and no consumer
nor any merchant would notice.  (cite:  NetSol.)  In sum,
the Verisign reputation does not hold back the company
from shafting any given retail customer, or merchant, or
any small player, IMHO.  Whether it does so is another
question - my point today is that the brand and reputation
would not hold it back.

I wish it did.  I would like Verisign's reputation to act
as a brake on the company's behaviour.  I would
also like not to have to repeat this same mantra so
many times to overcome the resistance to change,
and to craft a place in the future for CAs.  Without
brand, CAs have no future, they will be overtaken
by the events that are unfolding now.  (cite: Netcraft.)

iang
-- 
Advances in Financial Cryptography:
   https://www.financialcryptography.com/mt/archives/000458.html
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