[samlavery]

This article is kind of crap. I kind of expected better from ft.

----- The reality is that none of these companies — or any other quantum computing firm, for that matter — are actually earning any real money. ----- ORLY? I guess I should go masssively short IBM shares then. https://newsroom.ibm.com/image/2022%20IBM%20Quantum%20Roadma...

---- Shor’s algorithm has been a godsend to the quantum industry, leading to untold amounts of funding from government security agencies all over the world. However, the commonly forgotten caveat here is that there are many alternative cryptographic schemes that are not vulnerable to quantum computers. It would be far from impossible to simply replace these vulnerable schemes with so-called “quantum-secure” ones. ---- ORLY? New cryptography can take 20 years or more to be fully deployed to all National Security Systems. NSS equipment is often used for decades after deployment. National security information intelligence value varies depending on classification, sensitivity, and subject, but it can require protection for many decades. -NSA

The solutions we do have do not work very well. Only the weakest FALCON-512 (bad name as it was only 64 bits of quantum security, now the dual lattice attack seems to reduce this to 20?), actually fits the TLS use case without breaking the internet. The signatures are just too big. Cloudflare has testing that proves this.

If that wasn't enough, this person is completely unaware of the annual survey of quantum researches that actually puts the arrivial of a cryptanalyically relevant quantum computer at 2030 or so. Peter Shor is actually one of the people polled in the survey, this person is not. And if you parts are still clean, you can look at the surveys estimates since 2018. These estimates are clearly trending towards sooner and sooner, instead of further and futher away.

If you still have doubts, read this: https://www.whitehouse.gov/briefing-room/statements-releases...