We don't need quantum computers to be at microprocessor scale to make 2048-bit R... | Hacker News

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		adtac on Jan 11, 2020 \| parent \| context \| favorite \| on: A Graduate Course in Applied Cryptography We don't need quantum computers to be at microprocessor scale to make 2048-bit RSA factoring groundbreaking. If a quantum computer the size of a car can do it in 8 hours, it's sufficient.

nabla9 on Jan 11, 2020 [–]

It's extremely hard to maintain car sized superposition for 8 hours.

The devise itself can be huge, mostly because it's cooled, but the actual quantum state inside is just tiny chip.

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