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Chinese researchers break RSA encryption with a quantum computer (www.csoonline.com)

submitted 4 days ago by yogthos@lemmygrad.ml to c/technology@lemmygrad.ml

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[–] spark947@lemm.ee 8 points 4 days ago (1 children)

Yes, but also it's not looking good because theoretically this exploit could be applied over more bits with access to more qubits right? So it is only a matter of someone getting their hands on enough quantum computing cores.

But it was already theorized that this could happen, RSA had been considered unsuitable for a while now.

[–] yogthos@lemmygrad.ml 7 points 4 days ago (1 children)

Exactly, this method scales with the size of the quantum computer, so we could see RSA broken within a decade. And this technique could apply to a lot of other existing algorithms. The key part to keep in mind is that there is a lot of encrypted data that has been collected already that people simply had no way to decrypt. So, there are retroactive consequences here as well.

[–] spark947@lemm.ee 2 points 2 days ago

Yeah, but RSA has been considered insecure for a while now because this attack was theorized.

Still, I'm sure there is a lot of RSA encryption out there through hardware keys and ssl certs and such...