Physical Side Channel Attacks on PCs presented at t2 2015

by Lev Pachmanov,

Summary : Can secret information be extracted from personal computers by measuring their physical properties from the outside? What would it take to extract whole keys from such fast and complex devices? We present myriads way to do so, including:
- Acoustic key extraction, using microphones to record the high-pitched noise caused by vibration of electronic circuit components during decryption.
- Electric key extraction exploiting fluctuations in the "ground" electric potential of computers. An attacker can measure this signal by touching the computer's chassis, or the shield on the remote end of Ethernet, VGA or USB cables.
- Electromagnetic key extraction, using a cheap radio to non-intrusively attack laptop computers.
The talk will discuss the cryptanalytic, physical and signal-processing principles of the attacks, and include live demonstrations.
Joint works with Daniel Genkin, Itamar Pipman, Adi Shamir, and Eran Tromer.
Lev Pachmanov is a M.Sc. student at the Tel Aviv University, advised by Dr. Eran Tromer. His research area is cryptography, information security.