XRP Ledger maps out quantum-proof accounts, with no extra fees for users

Current blockchains, including the XRP Ledger, secure accounts with elliptic-curve signatures, a scheme that a sufficiently powerful quantum computer could in theory break by deriving a private key from its public counterpart. NIST responded in 2024 by approving ML-DSA-44 as a standardized post-quantum signature algorithm. Ripple and the XRP Ledger Foundation are now adapting that standard for XRP accounts, following similar quantum-readiness discussions already underway at Ethereum and within NIST's broader migration timeline for federal systems.

Account holders would gain the option to attach a quantum-secure key alongside, or in place of, their existing one, then retire the old key once ready, without paying a higher base transaction fee. The tradeoff lands in storage: protected transactions need more space, a cost absorbed by the network rather than passed to users. Wallets, exchanges and custodians holding XRP will eventually need to support key rotation, but nobody is forced to act before a transition date arrives.

A blockchain's long-term credibility rests on signatures nobody can forge, so the real test here is whether a fee-free migration path can be delivered without quietly shifting cost or risk onto node operators who store the larger transactions. Other major chains face the identical cryptographic deadline, and none has yet shipped a production-ready answer, which makes this proposal a useful early marker for how the wider industry might eventually retrofit decades-old signature schemes. (per newsbtc.com)

The XRP Ledger Foundation's own roadmap is explicit that this remains a proposal and research direction, placed on the 2027 agenda, not a network-wide switch that has already been activated. Ripple's public target for a full security transition sits in 2028, meaning the next marker to watch is whether the 2027 agenda item converts into an actual amendment vote and deployment schedule, or slips as the harder storage and compatibility questions get worked out.

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