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Topic: Can quantum technology crack the secret key in the future? - page 2. (Read 298 times)

full member
Activity: 616
Merit: 161
I know we are talking about quantum computing which is considered the be-all and end-all of technological advancement in any field but is it possible that encrypting as well will have its own evolution as it did so far. I'm looking at it like this, and mind you, this is a simplistic explanation so feel free to correct me, but as a quantum computer can decipher something, it can also make something more complex if the inputter wanted to go in that direction. If that is the case, since most research labs and governments will have access to it, they will surely want to explore new security and decryption option with it, at least to see if they could crack them.
legendary
Activity: 2072
Merit: 4265
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Quantum computers have long been called the future threat to the blockchain. But you also need to understand that even if such computers appear, it will not be a generally available technology. The owners of such computers will be research centers. For scammers, I think the purchase of this will not be available. Therefore, if we talk about hacking, then either large companies or the state itself can carry out them. Which by itself contradicts the possession of such technologies.
It should also be borne in mind that bitcoin itself develops annually, and while one industry is developing, another can also go-ahead for several decades.
hero member
Activity: 2156
Merit: 803
Top Crypto Casino
as far I know, to crack a complex password for example sha , you'll need centuries to crack those and you need like hundred supercomputers to do that but before that happens you'll be already dead when it happens, that's what I have read somewhere, but its just an estimate time and date not exact, so I think its a complete waste of time doing that.

Yes, you are write and this is where quantum computing comes in place as it can do calculation in just hours, which can take centuries for a few super computers.

I only know quantum computing is still in its early stages and it will be baseless to debate about a product which is not yet ready. IBM has been working on it and they have not yet confirmed when will it be ready.
legendary
Activity: 2436
Merit: 1362
I have heard the argument that if someone was to try and use
quantum computing to crack Bitcoin and passwords it would be
far more economical to actually start mining Bitcoin instead.

The power used trying to crack or hack the network or crack
passwords would be more beneficially used to help the network.

Then of course quantum computing is not just going to happen
miraculously overnight, its a technological journey and everybody
involved in the tech space is working towards the same basket of goals,
including quantum computing, so I dont have anything to fear
from QC.
sr. member
Activity: 1106
Merit: 310
as far I know, to crack a complex password for example sha , you'll need centuries to crack those and you need like hundred supercomputers to do that but before that happens you'll be already dead when it happens, that's what I have read somewhere, but its just an estimate time and date not exact, so I think its a complete waste of time doing that.
legendary
Activity: 3038
Merit: 4418
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Yes and no. Quantum computing is very useful for integer factorization with Shor's algorithm and offers an advantage for asymmetric algorithms to be cracked. This means that any pre-existing technology that uses public key cryptography, such as RSA and ECDSA are susceptible to such attacks. Is it more profitable for governments (presumably because they will have the budget required to operate one) to break TLS encryption or Bitcoin public keys? As of now, we're still quite a few years away from quantum computers with sufficient qubit to be able to crack asymmetric algorithms.

On the other hand, Grover's algorithm offers a quadratic speed up for symmetric algorithms. If your encryption cipher has a large enough key size, you're safe.
copper member
Activity: 117
Merit: 10
Will the future technology crack very complex passwords soon?
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