XRP Ledger Accelerates Post-Quantum Security Plans

TLDR

• XRP Ledger targets full quantum resistance by 2028, with hybrid security deployment expected to begin in 2027.
• XRPL plans to use native key rotation, allowing users to update cryptographic keys without changing existing account addresses.
• Developers are preparing a Quantum-Day emergency protocol to protect vulnerable accounts without shutting down the network.
• XRPL is already testing post-quantum algorithms, while Project Eleven supports broader audits across validators and infrastructure.
• The 2028 target would place XRPL ahead of Ethereum’s current 2029 quantum-resistance roadmap, while Algorand is pursuing its own phased transition.

XRP Ledger (XRPL) developers are moving toward full post-quantum readiness by 2028 as blockchain networks prepare for future cryptographic risks. Ripple’s published roadmap includes active testing, hybrid signature deployment and a contingency plan for a possible “Quantum-Day.” The target places XRPL’s planned full transition ahead of Ethereum’s December 2029 goal for post-quantum protection across its main network.

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