RSA keys obtained through CPU sounds
Posted: 2013-12-22 20:24
http://www.pcworld.com/article/2082200/ ... phone.html
"The attack can extract full 4096-bit RSA decryption keys from laptop computers (of various models), within an hour, using the sound generated by the computer during the decryption of some chosen ciphertexts," the paper's authors wrote. "We experimentally demonstrate that such attacks can be carried out, using either a plain mobile phone placed next to the computer, or a more sensitive microphone placed 4 meters away."
I can't help but remember the other post about malware communicating through such techniques:
viewtopic.php?f=4&t=222
Apparently to ensure messages are sent secretly you not only need a very good encryption algorithm, but also a sound-proof Faraday cage.
"The attack can extract full 4096-bit RSA decryption keys from laptop computers (of various models), within an hour, using the sound generated by the computer during the decryption of some chosen ciphertexts," the paper's authors wrote. "We experimentally demonstrate that such attacks can be carried out, using either a plain mobile phone placed next to the computer, or a more sensitive microphone placed 4 meters away."
I can't help but remember the other post about malware communicating through such techniques:
viewtopic.php?f=4&t=222
Apparently to ensure messages are sent secretly you not only need a very good encryption algorithm, but also a sound-proof Faraday cage.