XRP Ledger Proposes Quantum-Resistant Accounts With No Extra User Fees

The XRP Ledger Foundation proposed a quantum-resistant account design in its 2027 protocol roadmap, allowing users to add a quantum-resistant signing key and disable their existing key without paying extra fees. According to Odaily, the roadmap was updated on November 4. Public keys are exposed when accounts sign transactions on-chain, meaning accounts that have sent payments, including exchange wallets, have already exposed their keys. The proposed key uses the ML-DSA-44 signature scheme approved by the U.S. National Institute of Standards and Technology in 2024. Keys and signatures together would total 3,732 bytes, adding about 3.6 KB to each protected transaction. The base fee would remain unchanged, while network operators would bear the additional storage costs.