Hector Santos wrote:
>
> No line is magically appearing here.
>
> Based on the current SIMPLE c14n specs, it would be FEED into the
> HASHING ENGINE if it didn not exist as part of the original feed. It is
> not added to the original source.
>
> What I am now hearing is this, given 50 REAL bytes
>
> 12345678<CRLF>
> 12345678<CRLF>
> 12345678<CRLF>
> 12345678<CRLF>
> 12345678<CRLF>
>
> if l=25, then the hashing feed is:
>
> 12345678<CRLF>
> 12345678<CRLF>
> 12345
>
> and it does not include the expected final <crlf> which would currently
> required during a SIMPLE c14n signing process.
>
> If the CRLF is part of the final feed, then the l=25 text would be:
>
> 12345678<CRLF>
> 12345678<CRLF>
> 123<CRLF>
>
> No?
No.
The canonicalization is done *FIRST*. Then exactly l= octets of that are
presented to the hash algorithm.
> What I am now hearing is this, given 50 REAL bytes
>
> 12345678<CRLF>
> 12345678<CRLF>
> 12345678<CRLF>
> 12345678<CRLF>
> 12345678<CRLF>
ok
This is canonicalized using SIMPLE into:
> 12345678<CRLF>
> 12345678<CRLF>
> 12345678<CRLF>
> 12345678<CRLF>
> 12345678<CRLF>
which is the exact same thing that went in. The last line already has a
CRLF at its end, so no additional CRLF needs to be added.
> if l=25, then the hashing feed is:
>
> 12345678<CRLF>
> 12345678<CRLF>
> 12345
>
> and it does not include the expected final <crlf> which would
> currently required during a SIMPLE c14n signing process.
The octets shown here are exactly what would be fed to the hash.
> If the CRLF is part of the final feed, then the l=25 text would be:
>
> 12345678<CRLF>
> 12345678<CRLF>
> 123<CRLF>
No, the CRLF being discussed is the one that's added as part of the
canonicalization process if the last pre-canonicalized line did not have
a CRLF present. It's *NOT* one added after the canonicalization is
completed. So what you're showing here would NOT be what is fed to the
hash algorithm.
Tony Hansen
[EMAIL PROTECTED]
_______________________________________________
NOTE WELL: This list operates according to
http://mipassoc.org/dkim/ietf-list-rules.html
