XRP Ledger Foundation Roadmap Proposes Post-Quantum Signature Scheme

TechFlow reported on November 10 that, according to the protocol roadmap published by the XRP Ledger Foundation, the foundation has included a post-quantum signature scheme in a proposed amendment for 2027, which would introduce the ML-DSA-44 signature algorithm to allow accounts to migrate to post-quantum keys.

The roadmap indicates that the scheme remains at the proposal stage, with migration research planned for the first half of 2027 and development, review, and audits scheduled for late 2027 or 2028. The new keys and signatures are substantially larger than those in existing schemes, and final activation of the amendment still requires a validator vote.

Source: TechFlow