Re: [certid] Comments on draft-saintandre-tls-server-id-check-03

=JeffH <Jeff.Hodges@KingsMountain.com> Wed, 14 April 2010 15:32 UTC

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From: =JeffH <Jeff.Hodges@KingsMountain.com>
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Cc: IETF cert-based identity <certid@ietf.org>
Subject: Re: [certid] Comments on draft-saintandre-tls-server-id-check-03
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Thanks for bringing this up Nelson, it's certainly subtle-but-important aspects 
of this spec. Peter and I've been editing the spec and are working on 
addressing these items.

fwiw..

 > The various standards for translating a DER encoded Name into
 > a string call for the RDNs to be ordered, left to right, from most specific
 > to most general, the reverse of the order in which they appear in the
 > DER encoded certificate.

AFAICT, there is only one clear non-implementation-specific specification for a 
X.500/LDAP DN string representation, and that's (now) RFC4514 (obsoletes 2253, 
which obsoleted 1779, which obsoleted 1485). Is there a DN string rep specified 
anywhere in the ISO specs (I can't find one)?

IIRC, quipu (a historical ISODE X.500 implementation) had its own DN string 
rep, which was left-to-right, matching the ordering of the DER encoded form in 
the certificate.

thanks,

=JeffH