🚀 go-pugleaf

"Asger J�rgensen" <junk@Asger-P.dk> wrote in message
news:MPG.215597a7800f1e0f9897fc@newsgroups.borland.com...

> What if I atatch a file that include a key, that changes
> every day and then on arivel I check if the key is the
> right one for the day.

That would only work if you can guarantee that the algorithm used to
generate the key is never discovered.

You don't need an attachment, though.  Putting the key in the headers is
enough, and is less intrusive.

The problem with relying on the date, though, is that it does not handle
situations where delivery is delayed a day or more, unless the original date
is stored in the message as well.

> And istead of relying on the email date I write the date
> in the subject.

Use headers for anything that is private to the message that should not be
displayed to the user.

> The mail client could then download the new keys
> from a server that required logon

And if the client can't download a key?

> I am a little afraid of that encryption stuff it looks
> very difficult.

Not really.  There are plenty of libraries that hide the complexities for
you.  You really should be using real security instead of trying to invent
your own.  It will never be as secure.


Gambit