RE: speaking of keys

[Bob Doud <BDoud@hifn.com>]

The Hifn 6500 supports 2048-bit modulus sizes.  In
fact, all of the chips we've produced in the last
couple of years support 2048, and more recently the
HIPP II family goes to 3072-bit modulus sizes.  Our
newest chips will be going up to 4096-bit support.

But keep in mind, it usually takes 4x longer to
compute a D-H when you double the modulus.

Bob

 >>>>>> "Derrell" == Derrell Piper <ddp@electric-loft.org> writes:
> 
> I mistyped that, I meant >1024 bits and I was specifically thinking 
> about the Hi/fn 6500.  I knew the Broadcom chips could do 
> better, but I 
> wasn't sure what the limits were...  2048 seems to be pretty 
> common now.
> 
> Derrell
> 
> On Wednesday, December 11, 2002, at 09:56 AM, Paul Koning wrote:
> 
> >>>>>> "Derrell" == Derrell Piper <ddp@electric-loft.org> writes:
> >
> >  Derrell> What's the current state-of-the-art for COTS hardware
> >  Derrell> accelerators?  It was the case a few years back that many
> >  Derrell> public-key chips didn't do 1024 bit DH groups.  What's the
> >  Derrell> story today?  Do we care?
> >
> > I don't remember ever seeing an accelerator with a limit less than
> > 1024 bits in recent years (since IPsec).  The only other case that
> > comes to mind is Rivest's research prototype bignum ALU 
> chip, 512 bits
> > wide, early 1980s.
> >
> >       paul
> >
>