I'm not an expert in infosec, but I do know a few things about cryptography, and I feel fairly confident in saying that this is misinformation.
I don't ascribe or suspect any ill-will, but I will caution that getting us to distrust tools that can help us to stay secure is a kind of propaganda that we can easily fall for. Partly because infosec is, as far as my lay understanding goes, is pretty fucking bleak!
jorts.horse/@AnarchoNinaWrites…
AnarchoNinaWrites (@AnarchoNinaWrites@jorts.horse)
I mean, whatever you think about "quantum computing" the fact is they are absolutely doing things in computing, right now, that are going to render all of your present encryption irrelevant.jorts.horse
Co myslíte, má to takhle šanci? 
feld
in reply to Cassandra is only carbon now • • •until someone sells a room-temperature Quantum CPU with millions of qubits (and millions more for redundancy / error correction) and it doesn't consume a ton of electricity and isn't a billion dollars we don't have to care.
That isn't happening anytime soon. I have huge doubts it will ever happen. This feels like the 1980s and Cold Fusion all over again. Huge hype that is going nowhere, like every battery breakthrough.
Cassandra is only carbon now
in reply to feld • • •@feld Based on 20 years of expertise in the field, I don't think doubts that QC will happen *at all* are reasonable or terribly well-founded at this point.
The interesting question isn't *if* but *when*. From that perspective, I disagree with common marketing claims that say we're five years out. We've been five years out since the late 90s.
feld
in reply to Cassandra is only carbon now • • •Cassandra is only carbon now
in reply to feld • • •feld
in reply to Cassandra is only carbon now • • •It is true.
quantumcomputing.stackexchange…
How does a quantum computer do basic math at the hardware level?
Quantum Computing Stack ExchangeCassandra is only carbon now
in reply to feld • • •@feld Are you seriously linking an SE thread to someone who developed some of the first standard libraries for doing quantum arithmetic?
You said something flat-out false. Back off.
feld
in reply to Cassandra is only carbon now • • •okay
aau.edu/research-scholarship/f…
Researchers Show Classical Computers Can Keep Up with, and Surpass, Their Quantum Counterparts | Association of American Universities (AAU)
Association of American Universities (AAU)Cassandra is only carbon now
in reply to feld • • •feld
in reply to Cassandra is only carbon now • • •I fully believe that you have written a math library which in theory would do amazing work on a Quantum Computer if one was ever invented that did everything the theory thinks it would be able to do.
Q: I have access to a trillion dollar IT budget. Which Quantum CPU should I buy to do my incredibly expensive math calculations on using your library? I don't care if it's an engineering sample and we have to sign NDAs. And which OS can I install on it?