Anyone in particular know if Bitcoin is quantum resistant?
Discussion
Likely not…
Maybe in the year 2105 lol and then some kid will develop to migrate to sha-512 algorithm then they backbto square one..
Well I know that elliptical curve cryptography was the start of developing quantum resistant encryption, but I don't really know how resistant it is given the efficiency of quantum computers in their current state. Google is already publishing papers about algorithms run on their systems instantly that would take half a century on a classical supercomputer.
There is a good What Bitcoin did episode about that topic https://www.whatbitcoindid.com/podcast/the-quantum-threat-to-bitcoin-with-quantum-physicist-dr-stepan-snigirev
I've seen a few breakdowns over the years, short answer is yes, my statements here aren't based on anything I know, only what seems most plausible from actual smart people bitching. The number of qbits required to crack sha 256 would dwarf the number of atoms in the universe, so its a non starter. For that matter, the number of qbits required to do any amount of meaningful work is beyond the pale of what we are putting on a chip. Worse yet is how much deception there is in this industry, a lot of things are being called quantum computing when they aren't even close. Finally, satoshi themself I believe said due to the nature of quantum computing it would require the reuse of public keys (which is disabled by default on modern wallets) to leak enough information to crack the private key.
There certainly is a good amount of disinformation on quantum computing out there, but Google's recent published works make no mistake that real strides are being made. It's good that there's flexibility in the system and people actively planning for it.
It is good no one is taking the threat sitting down. Google though is making a lot of errors here, they seem to be comparing the work load of a supercomputer to a quantum computer factoring prime numbers. That super computer would not hash bitcoin blocks as fast as a relatively tiny amount of asics, for instance, if they compared this quantum computer to silicon that's designed for prime factorization then this might be more meaningful.
Not yet. But Satoshi had a solution for it
https://nostrcheck.me/media/public/nostrcheck.me_9008929331028210331688926629.webp
Also from an economic standpoint, which I can talk about a bit, there is obvious rent seeking going on here. Thousands or tens of thousands of people have been tricked into studying in this field and have absolutely no viable product to show for it, so they lie and say its coming soon™. They are tricking people and government organizations with money into proving funding, every once in a while they have to set up a little tech demo to assure their patrons that significant progress is being made.
Its like fusion, its always 20-30 years away so that the players today can make their money and retire before anyone calls them on their bullshit. Lockheed martin claimed almost 10 years ago that they had a viable fusion reactor for small scale power generation, they did this in response to a failed experiment claiming to show viable fusion, they wanted to throw their name out there to get the investment, since then its been swept under the rug.