Ethereum Foundation launches post-quantum security hub with more than 10 client teams

The Ethereum Foundation has launched pq.ethereum.org, a dedicated resource hub for its multi-year effort to secure Ethereum against future quantum computing threats. This effort, which began in 2018, involves over 10 client teams building and shipping weekly devnets through a process called PQ Interop. While a cryptographically relevant quantum computer is not considered imminent, the migration requires years of coordination. The roadmap integrates into the next four hard forks, addressing the execution layer with post-quantum signature verification, replacing the consensus layer's BLS signatures with leanXMSS hash-based signatures, and extending cryptography to the data layer's blob handling. This structured approach treats quantum threats as a concrete engineering problem, ensuring a resilient transition for the decentralized protocol.

(Source：CoinDesk)