hey guys, do you know if/what digital currencies are robust against quantum computers? because they are developing quite fast, and VCs pour tons of money in quantum startups. "quantum attacks" will eventually be an issue
Discussion
bitcoin. Also quantum attacks aren’t yet an issue.
for sure they are not yet an issue, but my point is it might be an issue sooner than expected. would you happen to have some material about that topic (protection against quantum computers)? I'd be curious to dig into it
Protections depend largely on the address type as bitcoin uses both ECDSA and Schnorr. Some old address types have their public keys easily accessible, whereas newer script types are more complicated, either locking funds to the hash of a public key or something else. Hashing the public key effectively protects from this sort of attack, so while in theory it’s a major issue, due to implementation details it’s not an issue in practice. that’s mostly why bitcoiners consider it a non-priority. I’d recommend learning how the address types work, maybe look at the BIPs (the specifications used in bitcoin)?
Bitcoin. There are already some quantum resistant algorithms out there, we will make the switch when necessary. Don’t forget everything else will break before bitcoin in this scenario, like your bank