seems obvious, but just checking that they needed (acoustic) access to the machi... | Hacker News

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		lifeisstillgood on Sept 2, 2018 \| parent \| context \| favorite \| on: An Intensive Introduction to Cryptography seems obvious, but just checking that they needed (acoustic) access to the machine performing a calculation with private key?

Kalium on Sept 2, 2018 [–]

Yes, though generally such attacks can function from at least a few feet - sometimes 20-ish - away.

So some access, though less than you might guess.

lifeisstillgood on Sept 3, 2018 | [–]

Thank you, and i think that leads to a new trailer for the Bionic Man - "he can hear a resistor whine 20 feet away"

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