Re: 1024 bit key considered insecure (sshd)

From: Perry E. Metzger (perry@piermont.com)
Date: 08/29/02 

To: "Karsten W. Rohrbach" <karsten@rohrbach.de>
From: "Perry E. Metzger" <perry@piermont.com>
Date: 29 Aug 2002 15:37:33 -0400

"Karsten W. Rohrbach" <karsten@rohrbach.de> writes:
> Perry E. Metzger(perry@piermont.com)@2002.08.29 10:15:34 +0000:
> > "Karsten W. Rohrbach" <karsten@rohrbach.de> writes:
> > > tracking the evolution of computing machinery nowadays, implementing
> > > cryptanalysis in hardware becomes cheaper and faster at an amazing
> > > speed. my wild guess is, that through the upcoming broad availability of
> > > software programmable hardware that is available today, attacks to
> > > crypto in general will become very cheap in a timeframe of months.
> >
> > If you can attack 1024 bit keys cheaply a few months from now, please
> > let us know. Where I live, Moore's law still observes things double
> > every 18 months, not every 18 hours.
>
> http://rcc.lanl.gov/index.php as a starting point. screw moores law, if
> the problem can be parallelized. ;-)

Gee, THAT is a really useful idea. Why, I bet that Xilinx will sell me
FPGAs for free! That way if I want to buy ten times more, it won't
cost me ten times as much! And I bet no one thought of that idea
before -- why, I bet when people came up with estimates for the price
of a piece of hardware to execute djb's algorithms they never thought
of parallel processing at all.

Perry

To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-security" in the body of the message

Relevant Pages

  • Re: 1024 bit key considered insecure (sshd)
    ... >> cryptanalysis in hardware becomes cheaper and faster at an amazing ... >> software programmable hardware that is available today, attacks to ...
    (FreeBSD-Security)
  • SHARCS 2006
    ... SHARCS -- Special-Purpose Hardware for Attacking Cryptographic Systems ... whether there are advantages over software-based attacks. ...
    (sci.crypt)
  • SHARCS 2006
    ... SHARCS -- Special-Purpose Hardware for Attacking Cryptographic Systems ... whether there are advantages over software-based attacks. ...
    (comp.arch.fpga)
  • Re: Hard disk Encryption
    ... In this particular mode the hardware based attacks are ... password or USB key) then the hardware attacks seem ... reasonable cause for a system to use a TPM is if it is assumed ...
    (Security-Basics)
  • Re: Stack growth direction to thwart buffer overflow attacks
    ... >>The question is not whether one can produce bug free code. ... would never have a problem with stack overflow attacks. ... Some hardware gives you nice easy ways to check some things, ... If you use a "buffer overflow safe" version of strcpyyou ...
    (comp.security.unix)