I admittedly don’t know much about the technology involved, but this seems very unlikely to be true.
this. The last I heard from China, quantum computers had 2 qbits and were the size of a house, but still very powerful, mind you.
The article says Samsung has already released one in South Korea, so it seems like it’d be pretty easy to confirm.
Edit: Looks like it does exist, has existed for two years, and so it’s very believable that China has one too. No reason to lie about it really
The article says Samsung has already released one in South Korea, so it seems like it’d be pretty easy to confirm.
Edit: Looks like it does exist, has existed for two years, and so it’s very believable that China has one too. No reason to lie about it really
I wasn’t really disputing that the phone exists, more that it performs the way that they say it does. I’m not really sure how you would test it. From my very limited understanding, it’s already incredibly difficult to break conventional encryption.
" It’s a tiny embedded chipset called the SKT IDQ S2Q000 that’s just 2.5mm square consisting of an LED and a CMOS sensor. The LED shines into the sensor to produce image noise, and the sensor interprets that as quantum randomness. These random noise patterns become the basis for truly random number strings."
That’s (supposedly) how the Samsung one works. Couldn’t really say how accurate it is to call that “quantum randomness” as that’s not my expertise, nor could I say if it is anymore secure than any other random number generator, which, as you say, are already really tough to hack, but a random noise pattern like that would in fact create a truly random string of numbers. So I guess there’s that.
Curious how this one from China will tackle the “quantum randomness” problem, but it’s likely to be pretty similar in all likelihood. It does seem to be impressively secure, but I (personally, and again, not an expert in this) do sort of think it’s a bit of a marketing buzz to centre “quantum” in this, as it isn’t really what people tend to think of when quantum computing comes to mind.
From my understanding, the main benefit of the quantumness was the inability of third parties to intercept data without changing it. But it sounds like this system relies on a series of base-stations relaying the data over fiber optic cables. Each of these base stations have access to all the keys, per Yogthos’ article.
China has been pioneering research in quantum communication, and has demonstrated using quantum channels to transmit data a while back https://www.scientificamerican.com/article/china-reaches-new-milestone-in-space-based-quantum-communications/
You can simulate qubits on classical hardware. I have no idea how it works, though.
