Pentium4
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1024-bit RSA encryption cracked by carefully starving CPU of electricity
Since 1977, RSA public-key encryption has protected privacy and verified authenticity when using computers, gadgets and web browsers around the globe, with only the most brutish of brute force efforts (and 1,500 years of processing time) felling its 768-bit variety earlier this year. Now, three eggheads (or Wolverines, as it were) at the University of Michigan claim they can break it simply by tweaking a device's power supply. By fluctuating the voltage to the CPU such that it generated a single hardware error per clock cycle, they found that they could cause the server to flip single bits of the private key at a time, allowing them to slowly piece together the password. With a small cluster of 81 Pentium 4 chips and 104 hours of processing time, they were able to successfully hack 1024-bit encryption in OpenSSL on a SPARC-based system, without damaging the computer, leaving a single trace or ending human life as we know it. That's why they're presenting a paper at the Design, Automation and Test conference this week in Europe, and that's why -- until RSA hopefully fixes the flaw -- you should keep a close eye on your server room's power supply.
Pentium 4 takes on modern CPUs in a benchmarking showdown, suffers ignominious defeat
If there's one thing that bugs us about desktop component reviews, it's that they tend to compare the latest hardware against the stuff immediately preceding it. Everyone wants to know what the improvements between generations are, but for many it's also equally useful to know how 2010's freshness compares to their own computers, which might have been bought or built a few years back. For those precious prospective upgraders, Tech Report have put together an extremely thorough benchmarking session which compares the venerable Pentium 4 670 and its silly 3.8GHz clock speed to a pair of new budget parts: the Core i3-530 from Intel and quad-core Athlon II X4 635 from AMD. Naturally, they've also included other contemporary parts like the high-end Core i7s and Phenoms, as well as a Core 2 Quad Q6600 from a couple of years ago to bridge the gap between the ancient 90nm Prescott and the 32nm young pretenders. It's all quite fascinating in the geekiest (and therefore best) of ways, so why not hit that source link and get reading.
OC Team Italy takes P4 to 8.18GHz
Nah, 8,180MHz can't hold a candle to 500GHz, but on the long road of overclocking Intel's Pentium 4 where there is an increasingly brief amount of time available to brag before being trumped, the zany Italians have crowned themselves champs once more. Not content with just hitting 8GHz with a "Cedar Mill" Pentium 4 631, OC Team Italy managed to push that very model an additional 179MHz by tweaking the FSB. The final results yielded a 173-percent overclock, and while this here setup may run stable for a continued period if placed at the depths of Antarctica, we can't imagine this being too feasible for the common man to replicate and actually utilize.
Pentium 4 overclocked to 8GHz: let's see your fancy Core 2 try that
Back in the olden days, before Abraham Lincoln put an end to the megahertz myth -- or was it Theodore Roosevelt, we always get so confused -- the Pentium 4 ruled the land, with its deep instruction pipeline and PR-friendly xtreem clock speeds. Luckily, Intel wised up and started beefing up the quantity and efficiency of cores instead of just the megahertz, but the megahertz myth still lives on in our hearts, and OC Team Italy keeps that hope alive with its latest achievement: an 8000MHz (8GHz in layman's terms) overclocked Pentium 4. The lucky chip to reach such ridiculous frequencies is a "Cedar Mill" Intel Pentium 4 631, with a standard clock speed of 3GHz. It wasn't just a case of flipping a few pins here and there, the OC folks used a modified ASUS P5B motherboard, with an added copper pipe and a few voltage modifications, along with a little bit of your garden-variety liquid nitrogen to keep it all cool. Golf claps all around, OC, now can you do something to rev up a processor that's actually going to be useful for something? Wait. What's gotten into us? Keep up the good work![Via Slashdot]
Dell Precision 390 workstation goes Core 2, too
Dell's giving that sweet Core 2 love to more than just the XPS 410 and XPS 700 desktops; even workstations are getting into the game. As part of the continuing onslaught of spec-bumped machines, the company announced that its Precision 390 tower is now available with four Core 2 Duo options (1.86GHz E6300, 2.13GHz E6400, 2.40GHz E6660, or 2.66GHz E6700) or even the blazing 2.93GHz Core 2 Extreme X6800, along with a seemingly-ancient 3.0GHz Pentium 4. The new rig can handle up to 8GB of DDR2 RAM, up to a 7,200RPM, 500GB hard drive, and comes with a number of graphics options from either nVIDIA (the Quadro series) or ATI (either a FireGL V7200 or V3400). If you act now, you can pick up a base configuration (which includes the E6300) for just $800, though going high-end will cost significantly more: a Core 2 Extreme--equipped setup more than doubles the price to $1,790.[Thanks, Michael]
eMachines releases five desktops for cash-strapped students
Even though summer has only barely begun, Gateway's eMachines is already looking ahead to the upcoming school year, having just announced five new Vista-ready desktops for the student on a budget. Starting at the "top of the line," we have the T6536 (pictured, with optional monitor) and T6534, which both feature Athlon 64 processors from AMD (3800+ and 3700+, respectively), nVidia GeForce 6100 graphics, and 250GB of storage, but the extra $90 you're spending on the $540 T6536 doubles the RAM from 512MB to 1GB and bumps the OS up to Windows XP Media Center Edition. Next in line is the T5046, which will set you back the same $450 as the T6534 but changes up the specs with a hyper-threaded Pentium 4 processor, Radeon Xpress 200 graphics from ATI, 512MB of RAM, a 200GB HDD, and the same dual-layer DVD burner found in both members of the 6000-series. Finally, the super-budget-conscious consumer has the option of either the $350 T3506 or $380 T3508, with the former machine offering a Celeron D352 CPU, Radeon X300-based graphics, 512MB of RAM, 120GB HDD, and a CD-RW/DVD combo drive, while the latter rig steps it up to a Celeron D356, Radeon Xpress 200 chip, 160GB hard drive, and that good old multi-format DVD burner. All of the new machines are available immediately, which gives you plenty of time to load up the software you'll need for surviving next year's vigorous academic schedule -- namely tunes, vids, and games.Read- T6536Read- T6534Read- T5046Read- T3508Read- T3506[All models via Yahoo]
Apple offers free iMac upgrade to Developer Transition Kit owners
Remember all those Developer Transition Kits (DTKs) that Apple was offering to developers to help them get their apps ready for an OS X-on-Intel world? Well it looks like Apple has opened the doors for developers to return those kits with a juicy offer: return the DTK and receive a Dual Core iMac in exchange at no extra charge. Regardless of the (possible) shipping charges involved, this sounds like a pretty sweet deal, as the DTKs had pentium 4s inside - not to mention no display, no iSight, no FrontRow and no Intel Dual Core chip with which to set your desk on fire.I would imagine most developers will bite on this deal, unless there's a bunch of developer-ish stuff that I don't know about behind the scenes here. The one question on my mind: what is Apple going to do with all those Intel-based DTKs? If they're sold as refurbs for cheap enough, I bet consumers would eat them up in a heart beat.
