ietf-dkim
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Re: [ietf-dkim] New canonicalizations

2011-05-23 07:44:58
Could you get the effect of this by including the  
Content-Transfer-Encoding header in the 'h=' and doing some fancy checks  
involving the 'bh=' (to detect whether it was the body or the headers or  
both that were broken)?

No, of course not.  The bh= and h= are just hashes, so all they can
tell you is whether the text being hash has changed, not how the body
has changed or which header changed.  There's no separate hash for
individual header lines.

On the other hand, you might want to look at page 24 of RFC 4871.

R's,
John
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