RE: Logotypes in certificates
Stephen Kent <kent@bbn.com> Wed, 21 March 2001 23:22 UTC
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Date: Wed, 21 Mar 2001 18:21:53 -0500
To: Michael Zolotarev <michael.zolotarev@baltimore.com>
From: Stephen Kent <kent@bbn.com>
Subject: RE: Logotypes in certificates
Cc: ietf-pkix@imc.org
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Michael, >Though I don't favor including logotype or reference to a logotype to a >cert, considering it as a pure marketing trick (sorry, Stefan :), but my >realisation was that a logotype is by no means related to the establishment >of trust. It is 100% meant for a human eye only, and verification algorithm >should simply ignore it, as it ingores any other proprietory extentions. If >the verification comes up with an answer 'not validated', and the software >prompts a user saying 'couldn't validate', and the user still makes a >decision to trust the cert, it is an application's problem, which already >exists now, and logotypes add no extra pitch to it. I think the whole purpose of including a displayable logo is precisely an attempt by a CA to gain the trust of users, so I disagree with your stating point. The concern I raised is not one that is addressed by your example, i.e., my example of a "bad outcome" is a cert that carries a logo which will be recognized by a user and thus will engender the user's confidence, but it is contained in a cert that, while valid under our path validation controls, has nothing to do with the entity whose logo appears in the cert and which is displayed to the user. >As an extreme, if a CA considers logotypes to be anyhow harmful, it simply >won't have a logotype in its own cert, and refuse certification of >logotypes. As a CA I can refuse to certify a logo-equipped cert one layer down, but not farther, unless we adopt a means of representing the logo that is subject to existing controls. Tom suggested on possible means, if we put the logo in an altname field and make it a type which can be prohibited using nameConstraints. Steve
- RE: Logotypes in certificates David Cross
- RE: Logotypes in certificates Michael Zolotarev
- Re: Logotypes in certificates Anders Rundgren
- RE: Logotypes in certificates David Cross
- RE: Logotypes in certificates Stefan Santesson
- RE: Logotypes in certificates Stefan Santesson
- Re: Logotypes in certificates Rich Salz
- RE: Logotypes in certificates Trevor Freeman
- RE: Logotypes in certificates Trevor Freeman
- RE: Logotypes in certificates Ambarish Malpani
- RE: Logotypes in certificates Trevor Freeman
- RE: Logotypes in certificates Michael Zolotarev
- Re: Logotypes in certificates Eric Murray
- RE: Logotypes in certificates Stefan Santesson
- RE: Logotypes in certificates Michael Myers
- Re: Logotypes in certificates Stefan Santesson
- RE: Logotypes in certificates Stephen Kent
- RE: Logotypes in certificates Andrew Hoag
- Re: Logotypes in certificates Dean Povey
- Re: Logotypes in certificates Dean Povey
- RE: Logotypes in certificates Tim Moses
- RE: Logotypes in certificates todd.glassey
- RE: Logotypes in certificates Stefan Santesson
- RE: Logotypes in certificates Stephen Kent
- RE: Logotypes in certificates Stefan Santesson
- Re: Logotypes in certificates Dean Povey
- Re: Logotypes in certificates Stephen Kent
- RE: Logotypes in certificates Ambarish Malpani
- RE: Logotypes in certificates Tom Gindin
- RE: Logotypes in certificates Michael Zolotarev
- Re: Logotypes in certificates Terry Hayes
- RE: Logotypes in certificates Peter Gutmann
- RE: Logotypes in certificates Hal Lockhart
- RE: Logotypes in certificates Stephen Kent
- RE: Logotypes in certificates Stephen Kent
- RE: Logotypes in certificates Stephen Kent
- RE: Logotypes in certificates David Cross
- RE: Logotypes in certificates Stefan Santesson
- RE: Logotypes in certificates Michael Zolotarev
- RE: Logotypes in certificates todd.glassey
- RE: Logotypes in certificates Trevor Freeman
- RE: Logotypes in certificates Russ Housley
- Re: Logotypes in certificates Dean Povey
- RE: Logotypes in certificates Michael Zolotarev
- RE: Logotypes in certificates Manger, James H
- RE: Logotypes in certificates Stephen Kent
- Re: Logotypes in certificates David P. Kemp
- Re: Logotypes in certificates Michael Ströder
- Re: Logotypes in certificates Dean Povey
- Re: Logotypes in certificates Michael Ströder
- Re: Logotypes in certificates Dean Povey
- Re: Logotypes in certificates Michael Ströder
- Re: Logotypes in certificates Stefan Santesson
- RE: Logotypes in certificates Bob Jueneman
- RE: Logotypes in certificates Stefan Santesson
- RE: Logotypes in certificates todd.glassey
- RE: Logotypes in certificates Stephen Kent
- Re: Logotypes in certificates Anders Rundgren
- RE: Logotypes in certificates Stefan Santesson