[Fwd: Re: [ietf-dkim] canonicalized null body and dkim]

[Charles Lindsey]

On Thu, 21 Dec 2006 04:50:07 -0000, Tony Hansen <tony at att.com> wrote:


> Point 7:
> 	Another way of expressing this algorithm that people may find
> 	easier to understand is:
>
> 	"If the last line of the message does not end with CRLF, CRLF is
> 	added. Then, CRLF 0*CRLF is reduced to a single CRLF."

Well that would be better expressed as "1*CRLF is reduced to a single  
CRLF",
but you should be saying "If the last line of the body" rather than "If  
the last line of the message", because

------------------
Last-Header: foobarCRLF
CRLF
------------------

is a message with an empty body (read RFC 2822).

Or put it another way; the last line of what you hash MUST NEVER be empty  
(i.e. must never consist of CRLF with no preceding real text).

That was why I included my INFORMATIVE NOTE, just to remove any possible  
misinteroretations (and we have just seen how easily people misinterpret  
things :-( ).

-- 
Charles H. Lindsey ---------At Home, doing my own thing------------------------
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