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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p><span style='font-size:10.0pt;font-family:"Verdana","sans-serif"'><a href="http://hackaday.com/2013/12/20/ambient-computer-noise-leaks-your-encryption-keys/">http://hackaday.com/2013/12/20/ambient-computer-noise-leaks-your-encryption-keys/</a></span><span style='font-family:"Verdana","sans-serif"'> <o:p></o:p></span></p><p><span style='font-size:10.0pt;font-family:"Verdana","sans-serif"'><a href="http://www.cs.tau.ac.il/~tromer/acoustic/">http://www.cs.tau.ac.il/~tromer/acoustic/</a><o:p></o:p></span></p><p><span style='font-size:10.0pt;font-family:"Verdana","sans-serif"'>Students at Tel Aviv University have successfully extracted 4096-bit RSA encryption keys using only the sound produced by the target computer. <o:p></o:p></span></p><p><span style='font-size:10.0pt;font-family:"Verdana","sans-serif"'>It may sound a bit like magic, but this is a real attack – although it’s practicality may be questionable. <o:p></o:p></span></p><p><span style='font-size:10.0pt;font-family:"Verdana","sans-serif"'>The group first described this attack vector at Eurocrypt 2004. <o:p></o:p></span></p><p><span style='font-size:10.0pt;font-family:"Verdana","sans-serif"'>The sound used to decode the encryption keys is produced not by the processor itself, but by the processor’s power supply, mainly the capacitors and coils.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif"'>Ruff, Ruff...!<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif"'>Network IPdog<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif"'>Ephesians 4:32 & Cheers!!!</span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'>A password is like a... toothbrush ;^) <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'>Choose a good one, change it regularly and don't share it.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif"'><o:p> </o:p></span></p><p><span style='font-family:"Verdana","sans-serif"'><o:p> </o:p></span></p></div></body></html>