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RE: I-D ACTION:draft-ietf-smime-3850bis-04.txt

2008-07-28 08:34:57

I got some section numbers wrong in typing.

The text in question is in section 4.4.1,
The reference in the new text should still be to section 4.4.2


-----Original Message-----
From: owner-ietf-smime(_at_)mail(_dot_)imc(_dot_)org [mailto:owner-ietf-
smime(_at_)mail(_dot_)imc(_dot_)org] On Behalf Of Jim Schaad
Sent: Monday, July 28, 2008 2:43 PM
To: Sean P. Turner; 'Blake Ramsdell'
Cc: ietf-smime(_at_)imc(_dot_)org
Subject: RE: I-D ACTION:draft-ietf-smime-3850bis-04.txt

Comments on the draft.

In section 4.4.3, I find the following text confusing:

End-entity certificates contain an extension that
   constrains the certificate from being an issuing authority
   certificate (see Section 4.4.2).

I believe that this text might be better as it clarifies what is being
stated.  I.e. it is not the fact that basic constraints is being used
actually does the mentioned constraint.

End-entity certificates contain the Key Usage extension which
restraints the
end-entity from using the key to perform issuing authority operations

Also the previous comment (on 3851bis) on key sizes > 4096 should be
to this document


-----Original Message-----
From: owner-ietf-smime(_at_)mail(_dot_)imc(_dot_)org [mailto:owner-ietf-
smime(_at_)mail(_dot_)imc(_dot_)org] On Behalf Of 
Sent: Tuesday, July 01, 2008 1:30 AM
To: i-d-announce(_at_)ietf(_dot_)org
Cc: ietf-smime(_at_)imc(_dot_)org
Subject: I-D ACTION:draft-ietf-smime-3850bis-04.txt

A New Internet-Draft is available from the on-line Internet-Drafts
This draft is a work item of the S/MIME Mail Security Working Group
the IETF.

    Title           : Secure/Multipurpose Internet Mail Extensions
(S/MIME) Version 3.2 Certificate Handling
    Author(s)       : S. Turner, B. Ramsdell
    Filename        : draft-ietf-smime-3850bis-04.txt
    Pages           : 20
    Date            : 2008-6-30

This document specifies conventions for X.509 certificate usage by
   Secure/Multipurpose Internet Mail Extensions (S/MIME) agents.
   provides a method to send and receive secure MIME messages, and
   certificates are an integral part of S/MIME agent processing.
S/MIME agents validate certificates as described in RFC 3280bis, the
   Internet X.509 Public Key Infrastructure Certificate and CRL
   S/MIME agents must meet the certificate processing requirements in
   this document as well as those in RFC 3280bis. This document
   obsoletes RFC 3850.

A URL for this Internet-Draft is:

Internet-Drafts are also available by anonymous FTP at:

Below is the data which will enable a MIME compliant mail reader
implementation to automatically retrieve the ASCII version of the

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