On 30/Apr/10 08:50, Murray S. Kucherawy wrote: >> [email protected]] On Behalf Of Alessandro Vesely Sent: Thursday, April >> 29, 2010 10:55 PM >> >> Yet, it would seem that by, say, hashing just invariants of binary >> representations of the first entity, e.g. discarding its white space and >> punctuation, one may reach very high percentages of unbroken retransmission. > > This sounds like what DomainKeys (RFC4870) called "nofws" canonicalization, > which was discarded in favour of what is now "relaxed" in DKIM.
Not exactly, removing punctuation would also take lines beginning with ">from". For the body, we could peek any suitable baseline tokenization and hash its results. > I don't specifically recall the reasons now but I'm sure they're in the > archives if someone else cares to dig that far back. The reason is meticulous security, which makes mailing lists' contents sleazy and illegitimate. One is http://mipassoc.org/pipermail/ietf-dkim/2005q3/000002.html (the previous part of the discussion is in some other archive or lost, but much text can be read in the quoted part of the message.) It exemplifies "Amoeba yeast" to Amo ebay east Another good summary of the driving thoughts is given in http://mipassoc.org/pipermail/ietf-dkim/2006q3/004416.html (while discussing whether to keep body- "relaxed".) It exemplifies --boundary Content-Type: image/jpeg Content-Transfer-Encoding: base64 to --boundary Content-Type: image/jpegContent-Transfer-Encoding: base64 _______________________________________________ NOTE WELL: This list operates according to http://mipassoc.org/dkim/ietf-list-rules.html
