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Title: . Post by: CriminologyProf on August 17, 2017, 10:06:17 AM .
Title: Re: Could a future hard fork save Bitcoin from Quantum Computing? Post by: BTCLovingDude on August 17, 2017, 10:09:29 AM I have heard people talk about how quantum computing could kill Bitcoin, don't just read the questions that people ask, read the answers that others give too. so would Bitcoin be able to "fork off" into a quantum resistant blockchain in a kind of hard fork when the time comes? yes! Title: Re: Could a future hard fork save Bitcoin from Quantum Computing? Post by: krishnapramod on August 17, 2017, 10:40:55 AM I have heard people talk about how quantum computing could kill Bitcoin, so would Bitcoin be able to "fork off" into a quantum resistant blockchain in a kind of hard fork when the time comes? If Quantum computers become a threat to bitcoin then quantum resistant new cryptography standards can be incorporated into the bitcoin protocol as a softfork or a hardfork. https://en.bitcoin.it/wiki/Quantum_computing_and_Bitcoin Quantum Resistant Ledger https://bitcointalk.org/index.php?topic=1730273.0 Title: Re: Could a future hard fork save Bitcoin from Quantum Computing? Post by: davis196 on August 17, 2017, 12:32:00 PM I have heard people talk about how quantum computing could kill Bitcoin, so would Bitcoin be able to "fork off" into a quantum resistant blockchain in a kind of hard fork when the time comes? The suggestions that quantum computing could kill bitcoin are made by people who don`t know anything about quantum computers or the blockchain. I think that the human civilization would need decades to make quantum computers cheap and available for the majority of people.I don`t see this as a threat,perhaps this is an opportunity to improve even further all the crypto technologies. Title: Re: Could a future hard fork save Bitcoin from Quantum Computing? Post by: buwaytress on August 17, 2017, 02:02:26 PM The suggestions that quantum computing could kill bitcoin are made by people who don`t know anything about quantum computers or the blockchain. I think that the human civilization would need decades to make quantum computers cheap and available for the majority of people.I don`t see this as a threat,perhaps this is an opportunity to improve even further all the crypto technologies. In other words, you're saying that the scenario that would make this threat possible will arrive in mere decades? Even the brightest minds often fail to correctly estimate how quickly home computers are able to advance. Here's an article about very smart people who knew a lot about their field (computers and tech mainly)... and yet made a few wrong calls. Nothing wrong with making mistakes but point is, what's wrong with ideas? Title: Re: Could a future hard fork save Bitcoin from Quantum Computing? Post by: BitcoinBarrel on August 17, 2017, 02:10:36 PM I still don't believe Quantum Computing is even a reality. There is no solid proof that quantum computers exist outside of Science Fiction.
The reason I don't think Quantum Computers will ever exist is because they insist that TWO Values can Equal a Single Value. This is not possible in the world we live in. Title: Re: Could a future hard fork save Bitcoin from Quantum Computing? Post by: audaciousbeing on August 17, 2017, 02:22:07 PM I have heard people talk about how quantum computing could kill Bitcoin, so would Bitcoin be able to "fork off" into a quantum resistant blockchain in a kind of hard fork when the time comes? The suggestions that quantum computing could kill bitcoin are made by people who don`t know anything about quantum computers or the blockchain. I think that the human civilization would need decades to make quantum computers cheap and available for the majority of people.I don`t see this as a threat,perhaps this is an opportunity to improve even further all the crypto technologies. Based on this your argument then bitcoin and blockchain is not safe because if you really follow the way technology is advancing, then you will know that the years that is being estimated to arrive at your conclusion could be fifty years early which is why there is need for further development of the blockchain technology to withstand any attack now or in the future. But I expect that Satoshi in his wisdom must have known this before concluding on bitcoin. Title: Re: Could a future hard fork save Bitcoin from Quantum Computing? Post by: michkima on August 17, 2017, 02:25:47 PM Now that this is answered by everyone here, that a quantum resistant code can be implemented, the new question is,
"Will bitcoin be able to upgrade first before quantum computers can break the code?" We all know how slow it is to implement updates to the bitcoin code, now it is a race. Title: Re: Could a future hard fork save Bitcoin from Quantum Computing? Post by: Roboabhishek on August 17, 2017, 02:59:04 PM I have heard people talk about how quantum computing could kill Bitcoin, so would Bitcoin be able to "fork off" into a quantum resistant blockchain in a kind of hard fork when the time comes? If Quantum computers become a threat to bitcoin then quantum resistant new cryptography standards can be incorporated into the bitcoin protocol as a softfork or a hardfork. https://en.bitcoin.it/wiki/Quantum_computing_and_Bitcoin Quantum Resistant Ledger https://bitcointalk.org/index.php?topic=1730273.0 After reading this article i think its very hard to bruteforce bitcoin network for private keys but not impossible. Also there's a company claims that it can make a quantum computer with 1000qbits. However this claim is not confirmed Title: Re: Could a future hard fork save Bitcoin from Quantum Computing? Post by: Emoclaw on August 17, 2017, 03:02:52 PM The answer is yes.
I still don't believe Quantum Computing is even a reality. There is no solid proof that quantum computers exist outside of Science Fiction. Yes it's a reality and yes there is. D-Wave manufactures and sells quantum computers. https://www.dwavesys.comThe reason I don't think Quantum Computers will ever exist is because they insist that TWO Values can Equal a Single Value. This is not possible in the world we live in. Your second statement is very false, and shows your lack of understanding of this topic. Quantum computers do not "insist" anything. Quantum computers use Qubits, which can be either of two states (0 and 1), like bits, or a superposition of both. Superposition is a principle of quantum mechanics which states that two or more quantum states can be added up, resulting in another quantum state. Title: Re: Could a future hard fork save Bitcoin from Quantum Computing? Post by: Kprawn on August 17, 2017, 04:17:04 PM We can upgrade, if the processing power increase. ;D
SHA-256 SHA-256 as we already mentioned is part of the SHA-2 family of products, it’s based on SHA-2 but with the capability for larger output strings (up to 256bits). The design of SHA-256 has changed a little, however because it is still based upon SHA-1 people are sceptical about just how sure it is. SHA-384 SHA-384 is part of the SHA-2 family of algorithms, it is closely based upon SHA-1 but the output sizes are increased to 384 Bits. SHA-512 SHA-512 is based upon SHA-1 algorithms, small differences do exist however. The string is increased in size to 512bits. *There are some other options too, but it shows that we have other tools in our arsenal.. if we need them in the future. 8) |