Ripple has unveiled a four-phase roadmap for post-quantum security on the XRP Ledger (XRPL), aiming to complete a full transition to post-quantum signature schemes by no later than 2028. The roadmap includes: a Q-Day emergency migration mechanism; quantum risk assessment and testing of NIST-recommended algorithms in the first half of 2026; parallel integration of candidate post-quantum signature schemes on Devnet in the second half of 2026; and subsequent large-scale network-wide adoption via XRPL Amendments. Ripple states that it has partnered with Project Eleven to conduct validator testing, Devnet benchmarking, and the development of a custodial wallet prototype. It emphasizes that current assets are not immediately at risk, but must address the “harvest now, decrypt later” threat.
Ripple Unveils 2028 Post-Quantum Migration Roadmap for the XRP Ledger
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Summary
Ripple has outlined a four-phase network upgrade plan to transition the XRP Ledger to a post-quantum signature system, targeting full migration by 2028. The roadmap includes a Q-Day emergency mechanism, quantum risk assessments, and NIST algorithm testing in early 2026. Validator testing and Devnet benchmarking are already underway. The company warns of the "harvest now, decrypt later" threat but says current assets remain secure. This latest crypto news highlights Ripple’s proactive approach to future-proofing the XRPL.
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