Optimism unveils a quantum-resistant roadmap for Superchain: ECDSA and EOAs to be phased out over the next decade

Optimism has unveiled a roadmap for Superchain that emphasizes quantum resistance, aiming for a complete transition from External Ownership Accounts (EOAs) that utilize ECDSA signatures by January 2036.

Key management for EOAs will shift to smart contract accounts that can support post-quantum signatures, ensuring a secure and modern approach for user interactions.

The migration plan includes L2 orderers transitioning to post-quantum signatures, with all upgrades being managed through coordinated hard forks to ensure a smooth transition over the next decade.