It does and many security or privacy oriented services are already implemented post quantum encryption, but majority of the internet still relies on AES-256 or similar if not worse.
Comment on Quantum computers need vastly fewer resources than thought to break vital encryption
rando@sh.itjust.works 1 day ago
Doesn’t quantum proof encryption exist already? I thought I learned that in college more than a decade ago… The only reason its not technically usable is because hardware is not strong enough to run it yet without being slow.
I could be misremembering though its been a long time
BrikoX@lemmy.zip 1 day ago
Rossphorus@lemmy.world 1 day ago
AES-256 is fine actually. The best known quantum attack reduces key strength from 256 bits to 254.4 bits. The problem is that in order to use AES (which is a symmetric encryption scheme) you need to exchange keys using an asymmetric system like RSA, which is known to be weak to quantum attacks.
obbeel@lemmy.eco.br 23 hours ago
There is quantum cryptography also. If any middle man listens into the communication, the information is scrabbled. Cool stuff