imagine ECDSA is demonstrated to be broken by quantum computing tomorrow

now everyone’s scrambling to move funds into a smart wallet with quantum-resistant signature verification ASAP

what’s the best implementation of this currently out there? does one even exist?

curious if @vitalik.eth has thought about this

He has written about this in the past:

tl;dr: Assuming that most EOAs are BIP-32-based, require a ZK proof of ownership of the BIP-32 seed phrase (which can't be derived by a quantum attacker) to authorize moving EOA funds.

He has written about this in the past:

tl;dr: Assuming that most EOAs are BIP-32-based, require a ZK proof of ownership of the BIP-32 seed phrase (which can't be derived by a quantum attacker) to authorize moving EOA funds.

https://ethresear.ch/t/how-to-hard-fork-to-save-most-users-funds-in-a-quantum-emergency/18901