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I'm not really sure what the point of this was. First of all, it's titular claim is incorrect - quantum cryptography is not "unbreakable" (and nor does that cla
by dsacco 10y ago
I'm not really sure what the point of this was. First of all, it's titular claim is incorrect - quantum cryptography is not "unbreakable" (and nor does that claim entirely make sense given how mature entire quantum cryptosystems are)[1]. Components like quantum key distribution are reasonably well-studied and do provide an information-theoretically secure solution for key exchange...but that is one component of successfully secured communication.
The article starts off pretty strong with a reasonably accurate exploration into how public-key crypto was invented in the 70s, and how quantum computers could eliminate the RSA problem. But then it veers into this weird territory about the government wanting to control crypto, and proceeds to talk about criminals and terrorists typically misusing otherwise strong crypto. I'm not sure how we ended up there...
It goes on like that, then just sort of ends with this vague point about human ingenuity. It seems like Aeon just wanted to write a headline with the words "quantum" and "cryptography." It's really short and didn't make any interesting point, in my opinion.
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1. Scott Aaronson is a reasonable place to start reading about quantum information theory/computing, and its implications for quantum cryptography in general. Try http://www.scottaaronson.com/blog/?p=2673 http://www.scottaaronson.com/blog/?p=2673 instead of breathless reporting.
- _jal 10y agoYeah, the article feels like someone had a rambling conversation with a crypto nerd in a coffee house, ranging from how things work to recent crypto-politics, and then tossed off an article later. I say that because I've had those conversations myself - it is hard to explain much crypto-related without getting in to politics, because politics has shaped modern crypto. But then you've just explained a lot of dense history, politics and math in a bundle, and confused the heck out of someone. Not only because it is dense, but because far more people think they understand something about crypto than actually do. (This includes me.)
- ahelwer 10y agoI read his book Quantum Computing Since Democritus and got stuck early on where it actually starts getting into quantum computing. IMO the book is great when you already vaguely understand the material (so I coasted through the early chapters on set theory, computability, and complexity) but hit a wall just past the point where he introduces 2-norm. Anyone else have this issue? Can you understand quantum computing without understanding quantum mechanics?