this post was submitted on 27 Feb 2025
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I haven't seen that show, but it sounds like it has a basis in reality: there has been a real concern that quantum computers might be able to break much of current encryption because they are far quicker than classical computers at problems like finding the prime factors of a number, and widely used schemes like RSA encryption depend on that being hard to do. And that could be fairly catastrophic, not only for current communications and for data encrypted at rest, but because communications data can be collected now and decrypted later when the technology becomes available. As far as we know, no one has done it yet, but quantum computers are developing rapidly so the day may well come. So there's a reason to move to encryption algorithms that are hard for quantum computers, even before such computers become a practical reality.
They do talk about quantum computing in the show in a different context, saying it's still a decade away. Their tech has something to do with Prime numbers (hence the title).
But also several companies already advertise "quantum resistant encryption" for whatever that's worth.