[1.4.0] hidden recipient vs. ID 00000000
dshaw at jabberwocky.com
Fri Jan 28 22:28:04 CET 2005
On Fri, Jan 28, 2005 at 08:48:48PM +0100, Bernd Eckenfels wrote:
> On Fri, Jan 28, 2005 at 03:56:40PM +0100, Janos.Farkas-lists+priv-#RVXrkLgxX70*-gpg-dev at lists.xeon.eu.org wrote:
> > On 2005-01-27 at 15:07:33, David Shaw wrote:
> > > Try the attached patch. It changes the "no keyid" case to all FFs
> > > instead of zeroes. All FFs is as good as all zeroes here, especially
> > > since all zeroes is reserved.
> > It's definitely less disturbing now, thanks! :)
> Is all-FF keyid a valid one? If yes this patch does not make it any better.
> Ie. it makes normal handling worse. Special values and in-band signalling
> sux pretty often.
All-FF and All-00 are both valid. All-00 is overloaded to mean
"anonymous recipient" on top of its usual meaning.
There is a small problem since a V3 key that isn't RSA is illegal
according to the spec. Quite literally, they have *no* key IDs. So
how should it be represented? The old code represented it as all-00.
The new code represents it as all-FF. Pick a value. They all have
The real answer is to delete illegal keys and/or refuse to import them
(which GnuPG does). If someone happens to have such a key, well, this
is just as bad as all-00, but at least doesn't break anonymous
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