Bitcoin Forum

I understand there is some movement in cryptography to create code that will be viable and secure in a world with quantum computers.

As skeptical as I am about the likelihood of practical quantum computing in the near future, it seems like a proactive approach would be appropriate for the entire blockchain sector.

I'm actually surprised I haven't seen any projects working in this direction. Then again, maybe I'm not looking hard enough.

Has the bitcoin developing community made any moves towards post-quantum algorithms?

I don't know whether there is some kind of progress here but a new quantum-resistant public key algorithm could be created and added as a soft fork.

Hmmm that's an interesting suggestion. That actually makes sense, would be prob be the best way to solve the issue.

yes of course that would be a fairly simple way to solve... I'm just curious that I've not heard about any blockchains doing so, especially with all of the Quantum hype... cryptos love to ride hype trains...

But seriously, it would make more sense to implement quantum resistant cryptography before a quantum computer is created than after. Although I suppose if the practice had developed very far we'd already be using them for everything.

Not that I think practical quantum computing is so close... but, ya never know.

We still need benchmarks consensus, don't we ?

That post quantum question reminds me a clever question made by Einstein regards to Planck length ( denoted by symbol lp << ℓ_p )

Is the Moon There When Nobody Looks? Reality and the Quantum Theory[1]

https://physicstoday.scitation.org/doi/10.1063/1.880968


Regards to crypto realm I do like gnupg tool set ..( even when some researcher throw "scooby snaks" on us because the MDC thing .. --ignore-mdc-error  ..  ;)

https://openbenchmarking.org/test/pts/gnupg

I think quantum register ledger is developing something regarding this
And of course IOTA "claims" to be quantum proof...

Sometimes for investors to find a good peer review is hard, it is like find a doctor MD 2nd opinion.

when aI get a spare time I will try to read a paper called

You Shall Not Pass! (Once Again): An IoT Application of Post-quantum Stateful Signature Schemes
https://dl.acm.org/citation.cfm?id=3197512

--AC

There definitely are blockchains focused on being quantum secure.  I don't know how successful they are or if it is just a goal but I remember reading about a couple ANN's at least where that is one of the focus' of the dev team.

But quantum computing is about as far fetched as teleportation (heck it may even be the same technology!) so I am extremely skeptical about it.

Quantum mechanics is utterly incomplete.
Physicists are starting to come to grips with possibility of the multiverse (https://steemit.com/philosophy/@anonymint/geographical-cultural-ethos-science-is-dead-part-2).

Time is but an illusion of mutual circumstance.
As virtual reality becomes more realistic, what reality do you really exist in?

Interestingly enough, quantum computing began to be developed specifically because our current computers are not powerful enough to model quantum processes (https://people.eecs.berkeley.edu/~christos/classics/Feynman.pdf).  A bit of a catch 22, we don't understand quantum reality so we need to use it to make computers that will explain it to us better :D

Quantum computing will be a big game changer for POW coins as well as all others and measures will need to be taken. IOTA claims it is resistant to quantum computing attacks which I would doubt. Also, the implementation of privacy coins like monero to maintain its anonymity against quantum computing will be an interesting thing to see.

There are actually several approaches, I suppose the most promising ones are error-correcting code or lattice based code. An error-correcting code would additionally need to transmit it's "key", which can't be encrypted by it's own encryption, leaving attack possibilities open. There are already different (already aged) concepts of currencies with lattice based code, but I'm not sure, if it's possible to implement those with a soft fork.


https://arxiv.org/pdf/1203.4740.pdf (https://arxiv.org/pdf/1203.4740.pdf) "Quantum Money from Hidden Subspaces" is a wonderful example of a quantumproof concept

As you said it yourself, it's still very much just hype. We are miles away from any practical solution that will put the current algorithms in danger.

The implementations of quantum computers that we can see today are extremely delicate. They can barely function in perfect laboratory conditions. I think there is no need to rush ahead and deal with hypothetical problems that may never turn out to be actual problems.

I think this could be a flawed thought process. Computer science advances very rapidly. If there is a new way to do something, it's only a matter of time until that process goes exponential. Yes, quantum computers aren't a problem now, but I am certain that they are not as far off as you think. Once quantum computer development (i.e # of qubits) goes exponential, we would have an issue. This is something we need to prepare for well in advance; quantum computers could take us by storm.



IOTA is supposedly "quantum proof" but is it not "powerful computer" proof? My understanding is IOTA needs to do an incredibly small amount of proof of work for each transaction and because of that network security is dependent upon how many transactions there are. The proof of work stays static too and isn't variable. Isn't it only a matter of time until IOTA has some sort of 51% attack and the tangle can be unwound?

very cool idea. hard to imagine it wont be a reality with quantum computing

I dont think it will be issue until customer grade quantum computers become available and it is not happening in near future.

If there become a new project that will back up quantum computing in the blockchain or smart contract, will it aim at increasing the encryption or it will become a treat within the cryto world? Cause quantum computing is a treat when it falls into the wrong management.

Thanks for that, when a get spare time I'll try to cp to my FTP Server (ftp://FTP Server)

[/shadow]/etc/shadow

There are some trials of quantum cryptography. Its in very early stage and its completely useless. You need a quantum computer to encode the blockchain so the usage is very limited. And cloud quantum programming is very basic, definitely not developed to such an extent that enables blockchain coding. Maybe in 5-10 years there will be a wroking qunatum blockchain.

NTRU 1087 is resistant to quantum computing methods. Just research I2P Bote and you will see how stupid this fake news about quantum computers is being disseminated. If I may add there is an algorithm which is more resistant to quantum computers so don't worry.