At 01:54 PM 8/16/2010, Perry E. Metzger wrote:
On Mon, 16 Aug 2010 12:42:41 -0700 Paul Hoffman
<> wrote:
> At 11:35 AM +1000 8/16/10, Arash Partow wrote:
> >Just out of curiosity, assuming the optimal use of today's best of
> >breed factoring algorithms - will there be enough energy in our
> >solar system to factorize a 2048-bit RSA integer?
> We have no idea. The methods used to factor number continue to
> slowly get better,[...]

He asked about "today's best of breed algorithms", not future ones. In
that context, and assuming today's most energy efficient processors
rather than theoretical future processors, the question has a concrete

With today's best-of-breed algorithms and hardware designs,
there isn't enough money in the economy to build a machine
that comes close to making a scratch in the surface of
that kind of energy consumption, whether for factoring or
for simple destruction.

Basically, 2048's safe with current hardware
until we get some radical breakthrough
like P==NP or useful quantum computers,
and if we develop hardware radical enough to
use a significant fraction of the solar output,
we'll probably find it much easier to eavesdrop
on the computers we're trying to attack than to
crack the crypto.

The Cryptography Mailing List
Unsubscribe by sending "unsubscribe cryptography" to

Reply via email to