DKIM Deployment

[Jose-Marcio Martins da Cruz <>]

Hi gentleman,

(happy new year)

Serge Aumont wrote:
> On 14/01/10 01:37, Dave CROCKER wrote:

> > > These are both pretty silly -- changing the case of case-insensitive
> > > values.
> > Actually, what's silly is having an algorithm that /cares/ about case,
> > for a case-insensitive string...
> Do you mean that DKIM canonicalization algorithm should convert all
> headers when preparing message from signature or verification ?
>  

There were two of examples :

* converting header names (name, not value) to low/high case doesn't seem to me a big problem, as 
headers are some sort of structured information. Message body isn't. So, why not...

* reformating dates is a more complex operation and opens the door to many 
other questions...

About converting headers case before signing and verification may be a problem in some cases. 
Headers names are case insensitive, but headers value aren't allways. E.g. an email address 
information in From and To headers is case insensitive, but the subject isn't.

--
 ---------------------------------------------------------------
 Jose Marcio MARTINS DA CRUZ           http://j-chkmail.ensmp.fr
 Ecole des Mines de Paris
 60, bd Saint Michel                      75272 - PARIS CEDEX 06
 
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