Would Quantum Computer Kill Bitcoin | Bitcointalksearch.org

Aying

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Quote from: jarhed on October 14, 2019, 09:35:33 AM

Quote from: ?? on ??

Very likely, but it takes more time! Quantum Computer is too expensive at the moment! Not suitable for trying to find private keys

I am sure that the Bitcoin network will find a way out of this problem in the coming years and will have very reliable protection against quantum computing. Bitcoin will always be ahead and the most innovative and secure.

Blockchain system will improve, and bitcoin will do as well. and there is no possibility that quantum computer will help us. because quantum is easily to control and everyone will not blessed to have this expensive system. who can have this is those multi-billionaire campany's. and its not suitable for everyone's need especially in crypto industry. no need to worry about this advance quantum computing system.

bitcoinposts

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They are reports that quantum computer has nothing to do with bitcoin it is just a rummor got spread on internet in reality it has nothing to do with bitcoin

bounceback

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I can't be sure clearly but in my opinion, Google's quantum computer doesn't have much impact on bitcoin because the supremacy of quantum computers only shows that quantum computers can solve very complex mathematical problems and mathematical problems are actually not the same as the context cryptography on the current blockchain.

crossabdd

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from some of the media that I read, Google and IBM have made quantum computers but are still small scale, around 50-60 qubits. while the bitcoin blockchain has a qubit of around 100, so at the moment the bitcoin blockchain cannot be solved. but it could be possible because in calculations it would take another 10 years to create a quantum computer that could break the Bitcoin Blockchain. so I think one day bitcoin will be hacked (broken code) because it has obsolete technology.

doomistake

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*heavy sighs*

This quantum computer will definitely destroy bitcoin, altcoins and even blockchain if the Government will successfully made this in the future (I hope they don't), even if quantum computer are just still theories, it scares me because we're saying goodbye to the foundation we made with bitcoins and other cryptocurrencies. Imagine the government having this, they could easily manipulate and control the entire blockchain or even destroy it.

Disclaimer: Let's withdraw all of our cryptocurrencies into fiat before this happens (let's pray for blockchain)

djsugar

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The strength of crypto is its cryptographically secured ledger which can't be viably breached at this point. Quantum computers will make it economically viable to break the cryptographic algorithm which will make blockchain obsolete in case some updating isn't done to fight it. So, the fear is legit that quantum computers will kill BTC. But it is way too far from reality as of now.

peter0425

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Quote from: jarhed on October 14, 2019, 09:35:33 AM

Quote from: ?? on ??

Very likely, but it takes more time! Quantum Computer is too expensive at the moment! Not suitable for trying to find private keys

I am sure that the Bitcoin network will find a way out of this problem in the coming years and will have very reliable protection against quantum computing. Bitcoin will always be ahead and the most innovative and secure.

Yups because bitcoin is design for future and only a quantum computer can kill this so what’s the sense of having this?i am sure this won’t happen and we still have time to prevent this from happening

Quote from: legok on October 12, 2019, 06:45:04 AM

i hope thats not will be reall... bitcoin have grow in the world...

Yeah it won’t ,let’s leave this to the experts than can make this not possible

sandra_x

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Quantum computing can pose a problem for Ellyptic curve cryptography in the future. Bitcoin in a way already has some sort of safe guard against this. As a precaution, if you do not use the same bitcoin address more that once, it makes it extremely difficult to crack your private keys. In any case, bitcoin is community-driven and a better security layer will be implemented when ECC becomes practically vulnerable. Quantum computing cracking encryption is not just a bitcoin problem, it will affected more serious segments such as military defense systems, finance etc

jarhed

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Quote from: ?? on ??

Very likely, but it takes more time! Quantum Computer is too expensive at the moment! Not suitable for trying to find private keys

I am sure that the Bitcoin network will find a way out of this problem in the coming years and will have very reliable protection against quantum computing. Bitcoin will always be ahead and the most innovative and secure.

legok

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i hope thats not will be reall... bitcoin have grow in the world...

panganib999

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Quote from: joinfree on October 03, 2019, 01:13:57 AM

As per the latest, Google has reached Quantum Supremacy. Meaning it could potentially decode an entire blockchain and...
YOUR PRIVATE KEYS...
Blockchains are secured through elliptic curve cryptography (ECC), just like encrypted user data and website traffic. Now the issue is that ECC is NOT "quantum-safe" meaning that a quantum computer could theoretically decrypt a user's private keys and forge transaction signatures.
Is this the end of Crypto?
I don't think so, but I'd love to hear your opinions too! (Especially the opinion of a cryptographer)

source https://www.coindesk.com/what-googles-quantum-supremacy-means-for-the-future-of-cryptocurrency

Spreading news, articles, or anything about quantum computing going to crush down blockchain because of its ability of decrypting private keys and breaking blockchain supported security might affect bitcoin's reputation and users for it might deploy panic and scare to investor, traders and users. Because one of the biggest asset of bitcoin is the anonymity it gives to every transaction and user's addresses, and losing it might affect bitcoin big time. But, this claim could not be possible if people behind blockchain will take an action to counter the threat.

rahmatullah9305

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When viewed from the rapid development of technology, one day surely bitcoin can be vulnerable too. But not all things have a bad impact, if in my opinion there is a positive side too, bro. quantum computers in one computational step can carry out mathematical operations on 2N different inputs stored in coherent N qubit superpositions. For the same thing, a conventional computer must repeat a number of operations 2N times or must use 2N conventional processors that work simultaneously. Quantum computers offer a tremendous increase in the use of two main computing resources, namely time and memory.
If quantum computerization is included in the operation of data I think bitcoin is not vulnerable because bitcoin is difficult to track because it is anonymous.

7788bitcoin

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Quote from: timerland on October 06, 2019, 01:43:29 AM

I think it'll be a pretty big risk to assume that BTC would be safe when quantum computers come around, using today's gear, it'll obviously almost be impossible to decipher someones private key, but with quantum computers, almost anything is possible.

The real question here is when are they becoming a real thing? We've talked and theorised about this technology, but I don't think we'll see anything that powerful until 20-30 years.

Hypothetically we can kill anyone with the help of quantum computers and the entire system can be hacked and we might see cyber war on a larger scale where countries will try to hack their enemies financial system and so on. These are all hypothetical scenarios and anything is possible in the future but for that to happen first there must be billions spend on testing and creating the perfect machine to hack the current security systems and if they try to come up with powerful technology in the next 20 to 30 years the security protocols will also gets updated.

bounty.bn

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We have heard a lot about Bitcoin dying. There are so many new blockchain platforms out there and also want to beat Bitcoin for over 10 years. Of course nothing is everlasting. In theory, Bitcoin can be defeated, but actually Bitcoin still exists and is getting stronger. So with what we see Bitcoin developing, it can't be beaten by Quantum. And I am confident that Bitcoin will be more and more powerful and improved in the future and at least 100 years more or even more... Cheesy

timerland

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I think it'll be a pretty big risk to assume that BTC would be safe when quantum computers come around, using today's gear, it'll obviously almost be impossible to decipher someones private key, but with quantum computers, almost anything is possible.

The real question here is when are they becoming a real thing? We've talked and theorised about this technology, but I don't think we'll see anything that powerful until 20-30 years.

lighpulsar07

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Well yeah a quantum computer can solve a sha 256 algorithm within a second from the articles about quantum computer online although don't be worry a quantum computer is costly and only a huge companies like google can build and own one and no one ordinary person can build or buy a quantum computer anyway just relax and don't panic.

boltz

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Not gonna happen but imagine the amount of mining power that it can generate , that would be a threat for sure. Besides that, quantum computer is not here to kill Bitcoin or even to threat it as the tech it has was build for another sectors and so far there are only 2 knowing brands that posses something like this. The quantum tech is still in development and maybe in some years we can talk about how it can threat the bitcoin future,replace it ,kill it or even help out in the security system because anything is possible regarding this gigantic technology that took us by surprise.

darkangel11

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Quote from: Mike Mayor on October 05, 2019, 07:35:32 PM

This is an interesting question. If quantum computing becomes this powerful then how will we protect our important data? Passwords would no longer work? The computer would crack any algorithm a human can think of so does this mean we will need physical verification such as a retina or fingerprint scan? That's scary that passwords would not be safe anymore. Bitcoin wouldn't work anymore and most other things too. After all what code would be safe if this quantum computer can just crack it?

This is a game hackers and programmers have been playing for decades. If you had a computer from the 80s with all its security and had a chance to use a modern computer and a modern hacker to break into it you would succeed without problems. Now people think that quantum computers that aren't even usable will break Bitcoin's encryption. By the time they become used for that purpose Bitcoin will be in another era.

Now you're comparing a technology from 2010 with a technology that could be online in 2030. In 2030 Bitcoin will be upgraded so much that it will be able to withstand a quantum attack.

Mike Mayor

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This is an interesting question. If quantum computing becomes this powerful then how will we protect our important data? Passwords would no longer work? The computer would crack any algorithm a human can think of so does this mean we will need physical verification such as a retina or fingerprint scan? That's scary that passwords would not be safe anymore. Bitcoin wouldn't work anymore and most other things too. After all what code would be safe if this quantum computer can just crack it?

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Quote from: SaShiRaJaVu on October 04, 2019, 04:37:32 PM

Suppose if anyone use those resources to break bitcoin then they can be prosecuted for theft.

no they can't. it can't be proven that coins taken in this manner were stolen at all. there would be no evidence of hacking or theft; there would be nobody to prosecute. it's the perfect crime.

in fact, it's debatable whether it's theft at all. pubkeys are publicly available so bruteforcing them doesn't require "taking" anything from the victim. they are more so attacking the pubkey-privkey system.

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