A POST-QUANTUM ROADMAP FOR THE SUPERCHAIN

Summary from the TLDR Crypto newsletter

OP Labs plans to deprecate ECDSA-based EOAs across OP Mainnet and the Superchain by January 2036, requiring all accounts to delegate key management to post-quantum smart contract accounts via EIP-7702. The migration leverages account abstraction to transition signing authority from ECDSA to post-quantum signatures. The specific cryptographic scheme remains undecided as NIST-standardized lattice-based options may not prove optimal long-term. OP Labs is coordinating with the Ethereum Foundation on broader quantum-resistance efforts, including migrating validators from BLS signatures and KZG commitments to post-quantum algorithms.