Re: [yam] Russ Housley's Discuss on draft-ietf-yam-rfc4409bis-02: (with DISCUSS)

S Moonesamy <sm+ietf@elandsys.com> Wed, 24 August 2011 19:55 UTC

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Date: Wed, 24 Aug 2011 12:56:41 -0700
To: Ned Freed <ned.freed@mrochek.com>
From: S Moonesamy <sm+ietf@elandsys.com>
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Subject: Re: [yam] Russ Housley's Discuss on draft-ietf-yam-rfc4409bis-02: (with DISCUSS)
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Hi Ned,
At 12:25 24-08-2011, Ned Freed wrote:
>That's not correct. The original text was worded fairly differently, also
>referenced S/MIME, and mentioned the possibility of other signiatures.

I meant the previous replacement text that was suggested.

>I don't have a problem with the approach the new text takes, but I don't
>understand why the reference to S/MIME was dropped. It seems likely
>it was an unintentional omission, and if so I suggest it be restored.

The reference to S/MIME may have been dropped unintentionally.  I am 
copying Dave as he suggested the replacement text.  I noticed the 
omission.  I did not ask about it as nobody raised it as an issue.  I 
used text from your message [1] to respond to the DISCUSS.  It looks 
like I misread your message; you were actually arguing for the 
original text to be retained without the compliance language.

Would this work for you:

   "Message modification can affect the validity of an existing message
    signature, such as by DKIM [DKIM], PGP [RFC4880], S/MIME [RFC5751]
    and can render the  signature invalid.  This, in turn, can affect
    message handling by later receivers, such as filtering engines that
    consider the presence or absence of a valid signature."

If you would like to suggest any change, I am open to it.  I'll wait 
a few hours in case the WG would like to comment.

Regards,
S. Moonesamy
YAM WG co-chair

1. http://www.ietf.org/mail-archive/web/yam/current/msg00756.html