• Vincent Lyles

Listening for Encryption Keys - it works!

Eran Tromer's team again show device vulnerability to to Side Channel Attacks - this time by listening. Computers emit high-pitched noise when working and these sounds leak sensitive information. The team's attack extracted the full 4096-bit RSA decryption keys from laptop computers (of various models), within an hour and experimentally demonstrated such attacks, using a plain mobile phone placed 30cm from the computer, or a more sensitive microphone placed 10 meters away. They even suggest that laser microphones and laser vibrometers will greatly increase the effective range of attacks.


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