Comment by Molitor5901 5 hours ago
I sat through a briefing last week about quantum encryption and the threat that quantum computing poses to encryption in use today. It was stressed that nation states are hoovering up encrypted data now in order to decrypt later with quantum computing. Much the same way America decrypted old soviet encrypted data. I wonder if it will take as long and if anyone will still be alive to make use of that data.
As has been previously pointed out, the 2001 and 2012 quantum factorisation records may be easily matched with a dog trained to bark three times [33]. We verified this by taking a recently-calibrated reference dog, Scribble, depicted in Figure 6, and having him bark three times, thus simultaneously factorising both 15 and 21. This process wasn’t as simple as it first appeared because Scribble is very well behaved and almost never barks. Having him perform the quantum factorisation required having his owner play with him with a ball in order to encourage him to bark. It was a special performance just for this publication, because he understands the importance of evidence-based science.
If quantum computing would progress just like in the last 30 years it may take 300 years before it can be useful.
https://eprint.iacr.org/2025/1237.pdf