XRP Ledger Proposes Quantum-Resistant Account Design Without Extra Fees

The XRP Ledger Foundation proposed a quantum-resistant account design in its updated 2027 protocol roadmap on November 4. This design allows account owners to add quantum-resistant signature keys to their accounts and disable the original keys to prevent future quantum computer attacks. Each time an account signs a transaction, the public key is exposed on the blockchain, and any account that has previously sent payments, including all exchange wallets, has exposed that public key. The new keys will use the ML-DSA-44 signature scheme approved by the National Institute of Standards and Technology (NIST) in 2024, with a total of 3732 bytes for the keys and signatures, and each protected transaction will increase by approximately 3.6KB. Users will not have to pay any extra fees, as the base fee remains unchanged, and the additional storage costs will be borne by network operators. Currently, developers are still addressing the issue of inconsistent key generation across different version codes, with plans to conduct migration research in the first half of 2027, aiming for a full quantum transition by 2028.

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