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Colossus Cracks Codes Once More

monkey13   on 15 November 2007 - 14:28 · 9 comments & 7046 views

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For the first time in more than 60 years a Colossus computer will be cracking codes at Bletchley Park. The machine is being put through its paces to mark the end of a project to rebuild the pioneering computer. The Colossus machine will be pitted against modern computer technology that will also be used to decipher and read the transmitted messages. Tony Sale, who led the 14-year Colossus re-build project, said it was not clear whether the wartime technology or a modern PC would be faster at cracking the codes. "A virtual Colossus written to run on a Pentium 2 laptop takes about the same time to break a cipher as Colossus does," he said.

View: Full Story @ BBC News

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(1 reply) #1 FloatingFatMan on 15 Nov 2007 - 17:07
Since when is a Pentium 2 a "modern" PC? :p
#1.1 twist on 15 Nov 2007 - 19:40
when it's compared to a 60 year old computer.
#2 +warwagon on 15 Nov 2007 - 17:25
well come on, compared to the machine they are comparing it to, is modern
#3 ir0nw0lf on 15 Nov 2007 - 19:26
Nice to see them re-building/preserving this machine. Quite a valuable piece of technology that helped to win the war.
(1 reply) #4 Croquant on 15 Nov 2007 - 23:26
Oh come on, you're comparing a Virtualisation of the Colossus running on a PII to the actual Collosuss and saying they run an the same speed? Well no ****, sherlock! Of course they do! Next you'll be telling us that youv'e managed to replicate a mechanical typewriter in a 3D virualisation and that to your surprise they can generate marks on paper at the exact same speed.

Try using modern hardware (Conroe or wolfdale Xeons, for example) and modern code-cracking method, compare that to how fast the Colosuss runs, and see what happens.

What a useless waste of money this project is.
#4.1 PGHammer on 16 Nov 2007 - 00:35
Useless? It's called *recycling*, bub. Not *all* codebusting needs to use the absolute latest and greatest hardware (or even all supercomputing; one of the most surprising of supercomputers, ASCI-Red, was originally built using 9,298 Pentium Pros (later replaced with the same number of Pentium IIs); it was retired just two years ago).
A later COTS supercomputer in the ASCI series (Thor's Hammer AKA Mjolnir), has actually given birth to a commercial supercomputer (Cray's XT3) just as the Cray-1 and later Cray-2 led to the later more commercially oriented Cray X-MP and Y-MP (the surprising thing about the Y-MP, which I've actually shared a room with, is that even with the communications nodes, it took up *less* space than it's closest competition among non-supercomputing mainframes, the IBM 30xx mainframes).

And yes, there is yet another *grid* supercomputing project (spun from the various protein-folding projects, such as F@H) applying the surplusage of computing cycles of Uncle Sam's scattered desktops/laptops/etc. to code-busting.
#5 PGHammer on 15 Nov 2007 - 23:31
It's not the first ex-codebuster restored to as-built working order. One of the first Cray-1s (yes, the one originally bought by NSA, now at the Smithsonian's Museum of History and Technology) was also restored to working order (partly using grants from, don't laugh, the Intel and Verizon Foundations). This particular Cray-1 was, oddly enough, only the second ever built (the first one went to the Nuclear Regulatory Commission, then the Atomic Energy Commission, to aid in, of all things, warhead design and simulated testing; after a later stint at the National Institute of Standards and Technology, it also has found a home at the same Smithsonian museum where its brother is now on display). The Cray-2 that replaced the Smithsonian's original Cray-1 is also a museum piece (the National Cryptologic Museum, across Savage Road from NSA HQ). Both Cray-1s (and the Cray-2) can be said to be the grandsons of Colossus (which was the first purpose-built supercomputer).
#6 toadeater on 16 Nov 2007 - 06:39
Paging Dr. Forbin...
#7 ajua on 16 Nov 2007 - 20:25
it would be nice to know the process of building that machine, but the real purpose of it is useless.

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