On 11/6/07, David Shaw <dshaw(_at_)jabberwocky(_dot_)com> wrote:
On Tue, Nov 06, 2007 at 10:46:49AM -0800, Jon Callas wrote:
Unless a mode change is folded in with a compelling other reason, I
don't see it's worth the bother. Every system has warts. This is not
a large one.
Exactly. That's why I say that *if* we do this, we should do it as
part of V5 keys. It's not important enough to do on its own.
I should add that I'm not exactly eager to go down the V5 keys path
without a good reason either. It would be nice to tweak some V4
details (fingerprints being SHA-1), but I don't think those details
are compelling enough to justify a V5 by themselves.
Agreed. But instead of V5 keys maybe this should be tied to
stream ciphers? So instead of _just_ a new mode for block
ciphers, there should be spec for stream ciphers and there could
be block ciphers in counter mode added.
So now the question becomes - are stream ciphers worth it?