Schneier says in a March SciAm brief on Kocher's timing attack: "In theory there are other attacks. You can measure power consumption or heat dissipation of a chip; timing is just one way."
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"John" == John Young <jya@pipeline.com> writes:
John> Schneier says in a March SciAm brief on Kocher's timing John> attack: "In theory there are other attacks. You can measure John> power consumption or heat dissipation of a chip; timing is John> just one way." And you could measure emissions, without even getting close to the chip itself. Andreas -----BEGIN PGP SIGNATURE----- Version: 2.6.2 Comment: Processed by Mailcrypt 3.4, an Emacs/PGP interface iQCVAgUBMSu6x0yjTSyISdw9AQHHwAP/TrNlmlJkHvojhI0F2ZXykIfXWqJOSjD3 /EqWvhM3e/l3N2OnrMelAhJDf3c/m6E823vQpwYMIRbOwdRkBgEGM/WJGyAPpLqU n0sgNrfD0E+zq9wKCw6HorFJc/UNIz6T3A9XGTv9ymK+eWdOjMdL0HLyedTdOgmh l74jDaRIYzg= =aMZl -----END PGP SIGNATURE-----
John Young writes:
Schneier says in a March SciAm brief on Kocher's timing attack: "In theory there are other attacks. You can measure power consumption or heat dissipation of a chip; timing is just one way."
You could also count the number of electrons, as well as their direction across the chips.
I dare say that it would be easier to look over the target's shoulder than to accurately measure differential amounts of heat dissapaiting out of a chip, covertly.
participants (4)
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Alan Horowitz -
andreas＠artcom.de -
John Young -
Mike Tighe