Ethereum Foundation: Has completed roughly 20% of its quantum-resistance preparations and plans to achieve full quantum resistance by 2032.

Gate News message, on April 1, at the EthCC[9] conference, Antonio Sanso, a cryptography researcher at the Ethereum Foundation, updated the latest progress toward Ethereum’s quantum-resistant security. He pointed out that quantum computers could pose a real threat to the ECDSA signature algorithm in the mid-2030s. Ethereum has already completed about 20% of its quantum-resistance preparations and plans to achieve full quantum resistance between 2028 and 2032 through the Lean Ethereum upgrade. The main technical challenge currently is the signature size problem: even the lightest post-quantum signature algorithm, Falcon, has a signature size more than 10 times that of ECDSA, and directly verifying Lattice-based schemes in Solidity incurs extremely high Gas costs. To address this, the research team has established two core technical paths: first, enabling users to upgrade their wallet signature algorithms to quantum-resistant schemes through account abstraction, without modifying the underlying protocol; second, introducing LeanVM to handle complex hash computations, and combining zero-knowledge proofs to verify ownership of address mnemonics, ensuring asset security during the migration process. Antonio said he will chair a biweekly ACD post-quantum special meeting starting in February 2026, and that consensus clients such as Lighthouse and Grandine have already launched experimental post-quantum testnets.