NoKnowledge

5 ms·

1.
by NoKnowledge 4y ago
This claims to be well-documented and secure by default, but I cannot find a link to the documentation (or is it just the README)? What actual algorithm is used for encryption and for signing? The README has a major red flag: > From the
2.
by NoKnowledge 5y ago
Oh absolutely, the theory behind QKD is fascinating! And I do think that some day there may be actually secure practical implementations, maybe even ones that are practical for more than a few niche applications. But you mentioned the assum
3.
by NoKnowledge 5y ago
Yes, otherwise how would you know you are indeed communicating with that party? Otherwise the standard Person-in-the-Middle attack would apply: Eve (claiming to be Bob) first runs a full protocol session (quantum + classical communication)
4.
by NoKnowledge 5y ago
> Rather, device-independent quantum key distribution allows you to scale back the assumptions on your implementation to a well-motivated, minimal set. To me, this is already intriguing enough without the need for hyperbole! Would it be
5.
by NoKnowledge 5y ago
The article suggests that quantum key distribution (QKD) is a replacement for a courier, but that is not true. Distributing an initial small secret key (which allows authenticity of the post-processing of the quantum measurements) is still
6.
by NoKnowledge 5y ago
That's simply a logical fallacy: P => Q does not imply (not P) => (not Q). Here: "If it is inaccurate, then it is wrong" does not imply "If it is accurate, then it is right."
7.
by NoKnowledge 5y ago
No configuration, curve or key-size would protect any of the asymmetric crypto mentioned in the book from quantum computing. You really have to switch to something mentioned in the post-quantum chapter.
8.
by NoKnowledge 6y ago
This take is rather naive. Those RSA factoring records were done by a large international team of researchers, using well established algorithms and decades of work on implementing those methods as fast as possible. The blog post says the p
9.
by NoKnowledge 6y ago
It's broken for me, thanks to the "responsive" design. When the browser window occupies half my screen (1920x1080px), the top-right menus (bell, plus, profile) get replaced with only a bell icon. How am I supposed to reach th
10.
by NoKnowledge 6y ago
That is apples to oranges, you're citing a lattice reduction algorithm? Maybe you meant the number field sieve https://en.wikipedia.org/wiki/General_number_field_sieve ? In that case the answer is: never. We'v
11.
by NoKnowledge 6y ago
This study considers seven semi-primes (without justification why these seven) and reports an average(?) runtime of factoring each with D-Wave. No conclusions should be drawn on so few data-points. The proposed "Block Multiplication Ta
12.
by NoKnowledge 7y ago
It's strange that the authors pick integer factorization as the problem to solve on their machine. Although their machine may provide a speedup for optimization problems, these speedups are not relevant for the problem of integer facto
13.
by NoKnowledge 8y ago
The so called quantum key-exchange requires a shared secret, so it is actually doing key-expansion. Besides that it has practical problems in side-channel protection and cannot achieve a high enough bandwidth to be of interest in most prac
14.
by NoKnowledge 8y ago
When quantum computers break existing algorithms, we do not need to resort to quantum key exchange, but we can make the switch to post-quantum crypto, as also indicated by the other comment[0]. However, switching to the next generation of c
15.
by NoKnowledge 8y ago
Hi Scott, Do you think we will see a Quantum Winter (or even several), similar to how we've had several AI Winters? We see tremendous amounts of funding in academia (and also industry) to build ambitious projects that still have signif
16.
by NoKnowledge 8y ago
They do that, with the extra step of allowing k-anonimity ( https://www.troyhunt.com/were-baking-have-i-been-pwned-into-... )