[caops-wg] Name Constraints - attempt at framing issues

[Cowles, Robert D.]

There are lots of people named David ... should they
all be the same person?  Maybe they *should*, but
that doesn't make it so.  As a relying party, without
a MUST and a reasonable way to implement it with
good controls, I won't count on it.  I'm a bit leery
that the CA can ever perform the simpler job, but I can
mitigate that risk by making the users register and
if they want to use a new certificate they have to
register the new one and say it replaces or is to 
be used as a synonym the old one .... not that I 
*automatically* the two certificates belong to the
same EE.

BC

> -----Original Message-----
> From: David Chadwick [mailto:d.w.chadwick at kent.ac.uk] 
> Sent: Friday, October 14, 2005 7:22 AM
> To: Cowles, Robert D.
> Cc: Von Welch; CAOPS-WG
> Subject: Re: [caops-wg] Name Constraints - attempt at framing issues
> 
> 
> 
> Cowles, Robert D. wrote:
> >  
> 
> > I really have trouble believing that anyone would believe
> > that brett or even brett at isp.net if identified by a certificate
> > from CA1 would have any relationship to the same name appearing 
> > in acertificate from CA2.
> 
> Dear Bob
> 
> I am one of those who think they should refer to the same entity.
> 
> David
> 
>   (In the case of the "email-like" address
> > it depends on (1) the security of the email system ... for instance
> > mindspring doesn't have a secure IMAP or POP option so I've just
> > been sitting thru a conference where a few people's passwords are
> > broadcast on the wireless network in clear text every 10-15 minutes
> > ... (2) the policy of the isp about reuse of ids ... if the user 
> > with the email name brett leaves, can I have that id now?
> > 
> > Bob
> > 
> > 
> 
> -- 
> 
> *****************************************************************
> David W. Chadwick, BSc PhD
> Professor of Information Systems Security
> The Computing Laboratory, University of Kent, Canterbury, CT2 7NF
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> 
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>