I would love to see an analysis of a 128 bit AES encryption VS a 10 exoflop computer. How long to crack it? Anyone got the math on this?
Andreas, your absolutely right, However we can do some estimating. Just keep in mind... garbage in, garbage out.. but this is a pretty good guess. So the fastest super computers use general cpus and Nvidia k20s. This is important to note because they scale in a linear fashion based on available space. Now we know that Oak ridge national labs has about an acre of space, 43,560 Sq. Feet, for its super computer, the Cray XK7 Named Titan. Which runs at 17.59 Pentaflops. (yes PENTAFLOPS) http://www.top500.org/lists/2012/11/ According to a Cray press release Titan can scale up to 50 Pentaflops. Now the new facility in Utah will have over 200,000 sq. feet dedicated to its super computer. ( http://www.forbes.com/sites/andygreenberg/2012/03/16/nsas-new-data-center-and-ultra-fast-supercomputer-aim-to-crack-worlds-strongest-crypto/) So If we assume, the a linear relationship between Square footage and computing power then we can calculate that Utah will have 4.59 time more space then Oak Ridge, so they will have room for at least 80.73 pentaflops. Several articles have stated that the center is designed to house an Exoflop computer. Thats a fast computer. Thats 10 followed by 18 zeros. Or 1000 petaflops. There is more. Lets look at our growth rate. 4.5 years ago Roadrunner was the first super computer to brake the pentaflop barrier. Today we have titan at 17.59 pentaflops. So if we can assume a growth rate of 380% per year. And that the center will be up graded with each new version of GPU from Nvidia and CPUs from Intel, We can assume that we will hit one Exoflop in about three years or 2015. The power production at the new facility supports these numbers. So what does this mean? Any article that suggest that brute forcing present day encryption is not possible should be taken with a grain of salt. While the article may be correct today, come September 2012, Utah goes on line and we will be stepping into a world that will lead to exaflop computers and may challenges to our present day encryptions. AES is safe for a longtime, but other encryptions should be of concern in the coming years. Don't forget about tracking and fingerprinting possibilities with these massive systems. I would love to see an analysis of a 128 bit AES encryption VS a 10 exoflop computer. How long to crack it? Anyone got the math on this? The good news, no one is going to care about your stuff... unless your making waves. Then the only safe encryption is a non mathematical method, such as a library code run on a system that does not go on the net. On Fri, Apr 5, 2013 at 8:00 AM, Eugen Leitl <eu...@leitl.org> wrote: > On Thu, Apr 04, 2013 at 01:55:40PM -0400, Gregory Disney wrote: > > Just saying TOR was created by the Naval Research Laboratory a part of > > The name's Tor, not TOR. > > > DARPA. Since it's inception they could index, spider and track the dark > > net. > _______________________________________________ > tor-talk mailing list > tor-talk@lists.torproject.org > https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-talk > _______________________________________________ tor-talk mailing list tor-talk@lists.torproject.org https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-talk
