Dr. Augustine Fou's Online Scrapbook

Friday, September 17, 2010

Pi Calculated to Five-Trillionth Number by Yahoo! Employee [PI]

Source: http://gizmodo.com/5640833/pi-calculated-to-five+trillionth-number-by-yahoo-employee

Pi Calculated to Five-Trillionth Number by Yahoo! Employee So, this is what Yahoo! employees do during work hours? Crack Pi records, using 1,000 of Yahoo!'s computers over 23 days? Glad to see they're working hard on simplifying what their company actually does...

Last time we heard of the Pi record being broken, a Japanese man calculated the five trillionth digit as being "2," using a custom-built computer (pictured).

The 2,000,000,000,000,000th (two quadrillionth) digit? It's a "0," according to Nicholas Sze, at Yahoo!. [BBC]

HDCP Master Key Is Real, But It Won't Do You Much Good [Security]

Source: http://gizmodo.com/5640907/hdcp-master-key-is-real-but-it-wont-do-you-much-good

HDCP Master Key Is Real, But It Won't Do You Much Good Intel confirmed that the HDCP "master key" posted anonymously last week is indeed real. But while it's always fun to see restrictive security measures get picked apart, this particular crack probably won't do you a whole lot of good.

CNET talked to all types of security folk to get the scoop on the implications of the leaked key, and while Cryptography Research president Paul Kocher says it'll let you "play god for this protocol,"—designed to protect content as it's beamed from set top boxes and Blu-ray players to HDTVs over HDMI—what the key really means is that a few years down the line there could be some hardware boxes that'll be able to create perfect bit for bit digital copies of HDCP-protected movies and broadcasts.

HDCP, short for High-bandwidth Digital Content Protection, is built directly into the chips in TVs and Blu-ray players, an Intel spokesperson explained, and to reap the benefits of the key you'd have to "implement them in silicon...a difficult and costly thing to do." Of course, Intel's still pushing ahead with the technology, which they license to all sorts of hardware manufacturers, so it's in their best interest to downplay the significance of the key making it into the wild.

But for those up to speed in the cryptology world, the appearance of the key is of little surprise. In 2001, researchers at Carnegie Mellon determined that only 39 HDCP-equipped devices would be required to reverse engineer the master key. So it's been something of an inevitability that someone would figure out the "master key"—the idea of a "master key" in any context is pretty enticing—but for now there will still be far easier ways for media pirates to do their pirating. [CNET]

Samsung Galaxy Tab loses voice capabilities in the US

Source: http://www.engadget.com/2010/09/16/samsung-galaxy-tab-loses-voice-capabilities-in-the-us/

Bad news, folks: not only is the Sprint Samsung Galaxy Tab a 3G-only device, but Samsung just confirmed to us that telephony was cut out of the Tab for the US market. That means you won't be able to pair up a Bluetooth headset and use the Tab as a really large phone like you can on the Euro model. That's super lame -- telephony features might have been the only way the inevitable two-year carrier contract would have been justifiable. Suffice to say, we're even more curious to hear about official pricing now, but it doesn't look like we'll be getting it until Samsung and its carrier partners are good and ready. We'll let you know.

Samsung Galaxy Tab loses voice capabilities in the US originally appeared on Engadget on Thu, 16 Sep 2010 20:44:00 EDT. Please see our terms for use of feeds.

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Toshiba slims down its LED lit HDTVs with UL605, SL400 series

Source: http://www.engadget.com/2010/09/16/toshiba-slims-down-its-led-lit-hdtvs-with-ul605-sl400-series/

Just because it's introducing its new 3DTVs to an unsupecting US populace this fall doesn't mean Toshiba has forgotten about sets that come in slightly lower on the price and feature scale. The UX600 series that just launched this year is already getting a refresh -- now dubbed the UL605 series, these LCD HDTVs keep the edge lit LED lighting, but in a slimmer frame. NET TV widgets are still in effect bringing DLNA access, VUDU, Facebook and Twitter, all of which connect easier to the 55- ($2,499), 46- ($1,699) and 40-inch ($1,399) TVs with an included WiFi dongle. After that, the SL400 series drops all extra frills for a simple edge LED lit TV with two HDMI inputs in smaller sizes from 19- to 32-inch versions for between $399 and $649. More details on spcs and pricing follow after the break, these should be popping up on shelves locally any day now.

Gallery: Toshiba UL605, SL400 series HDTVs

Continue reading Toshiba slims down its LED lit HDTVs with UL605, SL400 series

Toshiba slims down its LED lit HDTVs with UL605, SL400 series originally appeared on Engadget on Thu, 16 Sep 2010 21:41:00 EDT. Please see our terms for use of feeds.

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Confirmed: Intel says HDCP 'master key' crack is real

Source: http://www.engadget.com/2010/09/16/confirmed-intel-says-hdcp-master-key-crack-is-real/

It's been just a few days since we broke news of the HDCP master key crack -- a rogue unlocking of the code that keeps HD content under strict control. Now Intel has independently confirmed to both Fox News and CNET that the code is indeed the genuine article. According to company spokesman Tom Waldrop, "It does appear to be a master key," adding that "What we have confirmed through testing is that you can derive keys for devices from this published material that do work with the keys produced by our security technology... this circumvention does appear to work." Coming from the company that developed and propagated the protocol, that's about as clear as you can get.

If Intel is worried about the potential damage to copyrighted material and a new flood of super high-quality pirated material, however, the company certainly isn't showing it. "For someone to use this information to unlock anything, they would have to implement it in silicon -- make a computer chip," Waldrop told Fox News, and that chip would have to live on a dedicated piece of hardware -- something Intel doesn't think is likely to happen in any substantial way. Of course, like any major corporation, Intel seems prepared to duke things out in the legal arena should any super-rich hackers decide to do the unthinkable. So, to the Batcave then?

Confirmed: Intel says HDCP 'master key' crack is real originally appeared on Engadget on Thu, 16 Sep 2010 22:05:00 EDT. Please see our terms for use of feeds.

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