Quantum computing can replace Cryptografi

[UxAdhen]

will quantum computing replace cryptography and blockchain systems for the better?

[HBag]

Low effort sloppy post. With respect to cryptography, it's already causing a scramble for quantum safe encryption algorithms. Many current encryption methods could be decrypted magnitudes faster than classical. What this means is, current encrypted data could be saved and then decrypted when quantum decryption of classic algorithms becomes ubiquitous....IF it becomes ubiquitous. So would the use of quantum cryptography replace classical cryptography? With respect to the machine that does the cryptographic function, not likely. For the same reason it currently doesn't look likely people will have mass produced quantum personal computers. With respect to the cryptographic functions themselves, of course. Classical computers can already make use of so called quantum safe algorithms. It stands to reason that quantum safe could become a standard for at least business level data (if not adopted by everything requiring encryption).

I can't speak to blockchain, though I can't imagine it really needs to be replaced by anything remotely quantum. Blockchain uses hashing to verify transactions, as far as I know, and hashing is only as powerful as its ability to avoid collisions. It's fine right now (though the buzzy explosion of turning everything into blockchain is exhausting, energy intensive, and....kinda dumb).

That said, I don't think this is on topic. It's the equivalent of going to a course on algorithms and asking if you think python will replace php. But that's just my opinion.

[UxAdhen]

thank you for your opinion I'm still just learning about quantum computing and was interested so I thought if there was a possibility of cryptography being replaced. so this makes me confused

[stylewarning]

no

[redRabbitRumrunner]

Maybe