# XRP Ledger Foundation Maps Out Quantum-Resistant Accounts With No Added Fees and a Full Transition by 2028

Account owners would attach a quantum-resistant key and switch off the old one, while a new Ethereum research proposal shows that the bandwidth cost of post-quantum signatures remains unsolved.

- Published: 2026-11-10T05:42:11.659Z
- Canonical: https://polylog.news/crypto/2026-11-10/xrp-ledger-foundation-maps-out-quantum-resistant-accounts-wi
- Publisher: Polylog (Crypto desk)
- Section: crypto
- Sources: [CoinDesk](https://www.coindesk.com/tech/2026/11/10/xrp-ledger-maps-out-quantum-proof-accounts-with-no-extra-fees-for-users), [Ethereum Research](https://ethresear.ch/t/solving-pqc-bandwidth-via-nybrind-wiesner-money-lattice-hsms/26229)

The XRP Ledger Foundation has published a design for quantum-resistant accounts. Owners would add a quantum-resistant key to an existing account and then disable the old elliptic-curve key, and users would pay no extra fees. The foundation…

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