XRP Ledger Proposes Quantum-Resistant Accounts Without Higher Fees

The XRP Ledger Foundation has outlined a proposed upgrade that would allow account owners to add quantum-resistant signing keys and disable their original keys, reducing the risk that future quantum computers could derive private credentials from public keys already exposed onchain. The design uses the NIST-approved ML-DSA-44 signature scheme and would keep base transaction fees unchanged despite larger keys and signatures, leaving network operators to absorb the additional storage. Technical compatibility work and network testing remain unfinished, with a migration study planned for early 2027 and development and auditing expected to follow as the ecosystem targets a broader quantum-security transition by 2028.