----- Original Message -----
From: "Eric Allman" <eric+dkim(_at_)sendmail(_dot_)org>
To: <arvel(_dot_)hathcock(_at_)altn(_dot_)com>
Cc: <ietf-dkim(_at_)mipassoc(_dot_)org>
Sent: Friday, April 28, 2006 3:34 PM
Subject: Re: [ietf-dkim] z= question with X headers
Perhaps:
"A vertical-bar-separated list of select header field names and
copies of header field values that identify the header fields
present when the message was signed. It is not required to include
all header field names and values."
I've added essentially this wording. Sorry for the confusion; it was
definitely ambiguous.
Thanks. This was one of the issues I had brought in the issues list.
I think what is may be important is what to do when a header is different
from a possible copy in the z= list.
I.e., for a mailing server that may alter the subject line to add the
[mailinglist_name] subject tag.
Example: This might be the correction.
// Hash Headers
hash = empty;
for each hdr in (dkim_h_list) do
s = mail_headers[hdr];
sz = dkim_z_list[hdr]; // see is copy is available
if (s != sz) {
WHAT? INVALID? Should they be the same?
What can cause this? Mailing list?
}
if (s == "") s = sz; // correction
if (s != "")
hash += hash_string(s)
else
WHAT? INVALID?
end for
Make sense?
---
Hector
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