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DKIM: t=SecondsSince1970



--- Earl Hood <earl@xxxxxxxxxxxx> wrote:

(Thank you for you many good observations, Earl. I've taken the liberty of
slicing out individual points in the hope that it makes discussion easier).

> > >   - For the "t=" tag, why not use ISO date/time format.  For example:
> > 
> > >       20050714T045532
> > 
> > A reference to RFC 3339 would seem to be in order here.
> 
> The RFC definitely gives weight to use the format.
> 
> Note, Meta-Signatures has adopted a slight variant where the "T"
> is dropped.  Apparently, there is a desire to have the date to
> be only an integer, but I am not clear on the full reasons for this.

As far as I can tell, the main rationale is that data arithmetic/comparisons on
SecondsSince1970 is trivial, whereas doing so on 20050714T045532 is quite a
pain.


Mark.