Computer Warming a Privacy Risk


	Computer Warming a Privacy Risk

Octane

12-30-2006 11:43 AM

500 views

tags:

computer, heat, security, privacy, technology, science, physics

2 Comments |

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12-31-2006 10:24 PM

bookchick49

oops! Sounds like I'm in trouble.

My puter is HOT. LOL

This is good to know however.

1-1-2007 4:53 AM

Octane

So combine that with other methods, and you have something pretty comprehensive.

They are watching...

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<div style="margin: 12px 0px; font-family: arial; color: #333333; background: #ffffff; border: solid 4px #e5e5e5; width: 100%; clear: left;"><div class="CM_CTB_Content_Wrap" style="margin: 0px; padding: 0px;background-color: #ffffff;"><div style="border-bottom: solid 1px #dcdcdc; white-space: nowrap; margin-bottom: 8px; background-color: #eeeeee ;background-image: url(http://clipmarks.com/images/source-bg.gif); background-repeat: repeat-x; height: 24px; line-height: 24px; vertical-align: middle; padding-bottom: 4px; color: #666666; font-size: 10px;" ><a href="http://clipmarks.com/clip-to-blog/" title="see clips that are hot right now"><img src="http://content.clipmarks.com/blog_embed/787b6c48-bfa8-4d6b-a3e0-7dc5a9f0cd37/5BCDE5E5-6940-49A3-ACAC-561AA342C348/" alt="" width="19" height="19" border="0" style="vertical-align: middle; margin: 0px 4px; display: inline; border: none; float:none;" /></a>clipped from <a title="http://www.wired.com/news/technology/0,72375-0.html?tw=rss.technology" href="http://www.wired.com/news/technology/0,72375-0.html?tw=rss.technology" style="font-size: 11px;">www.wired.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.wired.com/news/technology/0,72375-0.html?tw=rss.technology"><H1 class="lg">Computer Warming a Privacy Risk</H1></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.wired.com/news/technology/0,72375-0.html?tw=rss.technology"><P>BERLIN -- A security researcher has a devised a novel attack on online anonymity systems in which he literally takes a computer's temperature over the internet.</P></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.wired.com/news/technology/0,72375-0.html?tw=rss.technology"><P>The attack uses a phenomenon called "clock skew" -- the tendency for the precise clocks in modern computers to drift off of the correct time at slightly different rates, which can be affected by heat.</P></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.wired.com/news/technology/0,72375-0.html?tw=rss.technology"><P>"When a crystal is manufactured, it has a clock skew, and it's different for each crystal (throughout its) lifetime," explains Steven J. Murdoch, a Cambridge University researcher who discussed <A href="%20http://www.cl.cam.ac.uk/%7Esjm217/%23talk-ccc06hotornot">his work</A> at the Chaos Communications Congress on Thursday.</P></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.wired.com/news/technology/0,72375-0.html?tw=rss.technology"><P>Last year UCLA Ph.D. student Tadayoshi Kohno showed that clock skew can be used to identify computers on the internet, by charting the timestamps in a machine's traffic. But the skew is a fairly weak identifier, providing at best 64 unique fingerprints. A network of a thousand computers would have 16 with an identical clock skew.</P></blockquote></div><div style="margin: 0px 6px 6px 4px;"><table style="font-size: 11px;border-spacing: 0px;padding: 0px;" cellpadding="0" cellspacing="0" width="100%"><tr><td style="background:transparent;border-width:0px;padding:0px;">&nbsp;</td><td align="right" style="background:transparent;border-width:0px;padding:0px;width:107px" width="107"><a href="http://clipmarks.com/share/5BCDE5E5-6940-49A3-ACAC-561AA342C348/blog/" title="blog or email this clip"><img src="http://content8.clipmarks.com/images/c2b-foot.png" border="0" alt="blog it" width="107" height="17" style="border-width:0px;padding:0px;margin:0px;" /></a></td></tr></table></div></div>

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