The problem is that gpg/pgp aren't very well supported.  Getting people to add
a few header lines is pretty easy (I've considered it a few times, but never
got around to it), but getting people to sign their mail is much harder.  After
all, that's the reason we aren't all using pgp and gpg already.  I notice that
your mail wasn't signed; is there a reason for that?

Habeas is just trying to make it as easy as possible for people to use their
system.

I strongly suspect I shouldn't even send this, since we're way off topic.

On Wed, 14 Jan 2004, John Ruttenberg wrote:

> Mat Harris:
> >
> > this sounds like a heavily commercialized version of pgp/gpg. It would be
> > just as easy to adapt MTAs to filter spam based on pgp keys (i'm not
> > suggesting we do).
> >
>
> I was imagining it would just use pgp/gpg and not reinvent that wheel.  The
> idea was just to have habeas actually issue the keys and thus be able to
> revoke them quickly.  And it would be impossible for spammers to forge.
>
> Right now, habeas works like this:
>
>     1. Licensed mail sender adds habeas watermark
>     2. Spam filter notices watermark and checks with habeas to see of
>        IP of sender is blacklisted
>         a. If so, mail is probably spam
>         b. If not, give it the benefit of the doubt since Habeas is so good at
>            chasing down spammers.
>
> My proposal:
>
>     1. Licensed mail sender has private pgp/gpg key provided by Habeas and
>        uses it to sign outgoing mail.  (Also adds haiku for legal purposes.)
>     2. Spam filter checks to see if corresponding public key is in Habeas
>        database
>         a. If not, mail is probably spam
>         b. If not, use public key to verify signature
>             i. If it verifies, mail is probably not spam
>            ii. If not, mail is probably spam
>
> The difference between my scheme and what Habeas does right now is only a
> difference in how hard it is to send spam that appears (falsely) to be
> sanctioned by Habeas.
>
> Does that make it any clearer?
>
>
>
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-- 
Adam Lopresto
http://cec.wustl.edu/~adam/

Follow your dreams.  Except the one where you go to work naked.
  --fluffie


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