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A comment on Proof emerges that a quantum computer can outperform a classical one. Parent comment

Re:Proof emerges that a quantum computer can outperform a cl... by lonelappde on Sunday September 29, 2019 @11:52AM (#21107715)
That's not an interesting statement. It's already possible to crack encryption given sufficient time. The amount of time matters.
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Re:Proof emerges that a quantum computer can outperform a cl... by octosphere on Sunday September 29, 2019 @01:55PM (#21108515)
I meant having a sufficient amount of time before certain crypto schemes are broken. Maybe I really meant reasonable. In a reasonable amount of time we can expect quantum computers to attack crypto schemes.

If you mean brute forcing an encrypted message, then yeah: that could take until the heat death of the universe for complex passphrases. Infact you might even need several universes of time to crack some passphrases.

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