At the moment it can't unless it assumes the order of the signature
headers is preserved.
But this is very easy to fix as we discussed earlier. Have a requirement
that if a signer adds a signature to a message that already has one it
adds in a counter attribute with a higher counter value than any other
signature already present.
I would also like to see a way for the signer to describe the role in
which they are accepting responsibility. It may not be possible to do
this in every case but if the signer can say that it is the originator,
a forwarder, a mailing list or whatever that will be usefull.
-----Original Message-----
From: Earl Hood [mailto:earl(_at_)earlhood(_dot_)com]
Sent: Wednesday, October 12, 2005 6:53 PM
To: Hallam-Baker, Phillip
Cc: Arvel Hathcock; ietf-dkim(_at_)mipassoc(_dot_)org
Subject: Re: [ietf-dkim] Charter bashing...
On October 11, 2005 at 21:50, "Hallam-Baker, Phillip" wrote:
I have a DKIM-SL client that is designed to add an end user
signature.
How to you distinquish between an end-user signature and a
signature created by a gateway? I.e. How does a DKIM
verifier know for sure that a given signature was created by
the end-user versus some other entity?
--ewh
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