Ethereum Foundation sets 2029 deadline for quantum-resistant cryptography

quantum-resistant cryptography — The Ethereum Foundation has declared achieving quantum resistance a top priority for the Ethereum network, setting a 2029 deadline to implement protections before a quantum computer capable of breaking today’s cryptography could plausibly emerge.

The Foundation stated that upcoming network upgrades will be judged against this timeline, indicating that future hard forks and protocol changes must contribute to this overarching security goal. The move aims to future-proof the blockchain against the potential threat of quantum computers, which could theoretically crack the cryptographic algorithms securing user wallets and transaction signatures.

While large-scale, cryptographically relevant quantum computers are not yet a reality, the Foundation’s proactive stance frames the 2029 target as a precautionary deadline. The announcement signals that research and development for post-quantum cryptographic standards will be integrated into Ethereum’s core development roadmap over the next several years.