Quantum computers

[Wa Da Fak]

Years ago I read about the potential danger of quantum computing for Bitcoin, I'm aware that before bitcoin gets **** up, many other things like banks and governments get fucked up earlier. However, I was wondering if anything changed in the last few years and whether quantum computing has progressed lately. Is it still a threat, will there be a solution? Thanks!

Yes of course in every problem there will be a solution right, but I think it just making some time to blew up again, last few years indeed lots of quantum computers been using and a lot of it was making money, hence lots of people including the government been discussing about the bitcoin, because it somehow uses in illegal ways.

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[muslol67]

For some reason this quantum computing topic is increasing its popularity every day. Why did people start asking questions crazy about it? Does anyone know how many quantum computers are fully operational?

[pawanjain]

Years ago I read about the potential danger of quantum computing for Bitcoin, I'm aware that before bitcoin gets **** up, many other things like banks and governments get fucked up earlier. However, I was wondering if anything changed in the last few years and whether quantum computing has progressed lately. Is it still a threat, will there be a solution? Thanks!

I read an article recently on quantum computers and came to know that it will at least take about 8-10 more years for functional quantum computers to be available in the market for sale. So we don't have to worry about bitcoin's current encryption method for at least until quantum computers are alive.
Apart from that they also mentioned that with the rise of quantum computers will rise encryption methods that will be quantum proof.
Obviously the SHA256 encryption method which bitcoin uses currently will be easily breakable by quantum computers but when the developers switch to quantum proof encryption then there will be no stop to bitcoin.

[Artemis3]

Years ago I read about the potential danger of quantum computing for Bitcoin,

for thousands of years (yes, even before computers) we have been coming up with newer and stronger cryptographic schemes to make it stronger as efficient ways were found to break the older ones. this is not going to stop here either, it will be a constant battle of strengthening cryptography while technology improves.
so what does it mean for bitcoin? nothing really! like everything else bitcoin has to also upgrade its cryptography at some point to be ahead of the technology.

Remember when the enigma machines were cracked by the British? But the Germans knew nothing and kept using them until it was too late. I'm sure they knew the "possibility" was there, that their enemy would somehow be able to decipher their messages, but why bother? They did in fact had an improved variant used only (why?) in their submarine fleet, but there too made a (stupid) operational mistake since they considered safe enough or "too" safe to bother properly setting the things with a different random starting number (cause randomness is overrated, right?...)

And that's one of the historical mistakes in cryptography, thinking that you are already safe, when you still have the chance to improve things even more.

[MetalGear]

Years ago I read about the potential danger of quantum computing for Bitcoin, I'm aware that before bitcoin gets **** up, many other things like banks and governments get fucked up earlier. However, I was wondering if anything changed in the last few years and whether quantum computing has progressed lately. Is it still a threat, will there be a solution? Thanks!

Quantum computing is mainly about storing and manipulating data and performs a calculation using 1 and 0's and is used most especially in major corporations and academic institutions and will be widely spread and used in not time. But in crypto space, this is no good news for quantum computers is a threat in cryptography, quantum computing's technology is very powerful that it can break widely used encryption scheme, and there comes the threat to cryptography especially in bitcoin because it relies on the blockchain which uses encryption, same goes with other cryptocurrencies. If quantum computing will be put on the wrong hands, crypto space will be at risk for they will be able to manipulate data inside a ledger.

[Hans17]

For some reason this quantum computing topic is increasing its popularity every day. Why did people start asking questions crazy about it? Does anyone know how many quantum computers are fully operational?

Well here in this article it said that quantum computers are very common right now and we cant stop that and we cant stop asking ourselves about it because quantum computers basically has purpose an atomic level calculations, and we somehow know that quantum computers will be exposed sooner or later.

Fully operational? i guess on some states maybe?

https://www.technologyreview.com/s/610250/serious-quantum-computers-are-finally-here-what-are-we-going-to-do-with-them/

[Eugenar]

Read the posts below,

Google:
https://www.theverge.com/2019/9/23/20879485/google-quantum-supremacy-qubits-nasa

IBM:
https://techcrunch.com/2019/09/18/ibm-will-soon-launch-a-53-qubit-quantum-computer/

If I have to believe the contents of these articles, then I would have to believe that quantum computer exists already. Did anything happen to bitcoin yet?

I am sure quantum computer with astronomical power will be invented in near future! But it is very highly unlikely that anything would happen to bitcoin.

Take example of nuclear/ hydrogen bombs. Many countries have these bombs in their arsenal. But it is highly unlikely to be actually used against human race! Chill!

Technically speaking, yes quantum computers already exists, based on the article you've provided, quantum computers exists already since 2017, they are just try to achieve the what so called "Quantum Supremacy", which is considered to be the greatest computing power of all. Based on that conjecture, if we are going to mine or compute transactions using our regular computers with huge graphics on it, what more that a quantum computer can do? If a project with quantum computing enters the cryptocurrency, we can expect huge outcomes and changes to it.

[pooya87]

for thousands of years (yes, even before computers) we have been coming up with newer and stronger cryptographic schemes to make it stronger as efficient ways were found to break the older ones. this is not going to stop here either, it will be a constant battle of strengthening cryptography while technology improves.
 

Are you merely trolling here?

why would you think that? just because it seemed to me you were trolling in your topic in other place?!!

i am just pointing out that despite popular belief, even if ECDSA was broken some day by any means, it won't be the end of bitcoin (or as OP puts it, bitcoin won't get **** up). people are usually unaware that we keep upgrading cryptographic functions every now and then to stronger ones to stay ahead and bitcoin isn't going to an exception.

[pawanjain]

for thousands of years (yes, even before computers) we have been coming up with newer and stronger cryptographic schemes to make it stronger as efficient ways were found to break the older ones. this is not going to stop here either, it will be a constant battle of strengthening cryptography while technology improves.
 

Are you merely trolling here?

why would you think that? just because it seemed to me you were trolling in your topic in other place?!!

i am just pointing out that despite popular belief, even if ECDSA was broken some day by any means, it won't be the end of bitcoin (or as OP puts it, bitcoin won't get **** up). people are usually unaware that we keep upgrading cryptographic functions every now and then to stronger ones to stay ahead and bitcoin isn't going to an exception.

Yes, @pooya87 is probably right. Just read my quoted post.

Years ago I read about the potential danger of quantum computing for Bitcoin, I'm aware that before bitcoin gets **** up, many other things like banks and governments get fucked up earlier. However, I was wondering if anything changed in the last few years and whether quantum computing has progressed lately. Is it still a threat, will there be a solution? Thanks!

I read an article recently on quantum computers and came to know that it will at least take about 8-10 more years for functional quantum computers to be available in the market for sale. So we don't have to worry about bitcoin's current encryption method for at least until quantum computers are alive.
Apart from that they also mentioned that with the rise of quantum computers will rise encryption methods that will be quantum proof.
Obviously the SHA256 encryption method which bitcoin uses currently will be easily breakable by quantum computers but when the developers switch to quantum proof encryption then there will be no stop to bitcoin.

[Wintersoldier]

Years ago I read about the potential danger of quantum computing for Bitcoin, I'm aware that before bitcoin gets **** up, many other things like banks and governments get fucked up earlier. However, I was wondering if anything changed in the last few years and whether quantum computing has progressed lately. Is it still a threat, will there be a solution? Thanks!

Quantum computing is mainly about storing and manipulating data and performs a calculation using 1 and 0's and is used most especially in major corporations and academic institutions and will be widely spread and used in not time. But in crypto space, this is no good news for quantum computers is a threat in cryptography, quantum computing's technology is very powerful that it can break widely used encryption scheme, and there comes the threat to cryptography especially in bitcoin because it relies on the blockchain which uses encryption, same goes with other cryptocurrencies. If quantum computing will be put on the wrong hands, crypto space will be at risk for they will be able to manipulate data inside a ledger.

First, I would like to add some info about how the quantum computer works, it is not just computes using 1 and 0, there is a superposition that can be understand as being in a state of 1 and 0 at the same time. That is the reason why quantum computer computes very fast. In my opinion, even the google 72 qubits quantum computer will not be able to decrypt our private keys and encryption, because as far as I know, quantum computers are good in some points, if we will going to let them perform same algorithms like the generic computer, it might be the same performance (bottleneck).

[hotmom]

Quantum computers aren't as close as you think, it's still in the future