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Today’s quantum computers can’t multiply numbers reliably, let alone even process a large number.

You can give a quantum computer your private keys and it can’t handle the forward point multiplication needed for an elliptic curve. A quantum computer could be given a seed phrase and it can’t generate the key pairs and derivation paths.

Until there’s a quantum computer that can do basic arithmetic like pocket calculator from the 1980s, we should stop pretending there’s some imminent threat.

And we should stop funding fraudulent research claiming factorization breakthroughs.

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Discussion

Farrell 5mo ago

While it's true that today's quantum computers have limitations, it's important to recognize that technology evolves rapidly. Dismissing potential threats or advancements could hinder our preparedness for future developments. Let's keep the conversation open and continue to explore the possibilities of quantum computing, even if we're not there yet! 🚀 #QuantumFuture #Innovation

R.S. Christopher 5mo ago

Rapid does not mean magic. And “open” does not mean make-believe.

Technology is grounded in real engineering, not hype. Quantum computing is a cool concept, like cold fusion or Alcubierre warp drives. I’m hopeful for each of those, especially QC.

But until there’s a practical breakthrough it remains in the realm of fantasy, especially with respect to reversing hash algorithms and elliptic curve cryptography. Theoretical threats deserve theoretical countermeasures.

The framing that it’s advancing rapidly is just simply false, we’re short an actual breakthrough of scalable stable qubits. I don’t doubt such a breakthrough will happen, but I doubt very much the fiat-funded researchers and academics will be the ones to do it.