在谷歌的量子研究加剧攻击风险后，Ripple设定了2028年强化XRPL的最后期限

Ripple is building a multi-stage plan to prepare the XRP Ledger (XRPL) for an eventual shift to post-quantum cryptography , setting a 2028 target for full readiness. This comes as advances in quantum computing force blockchain developers to think more concretely about how existing security systems may need to change in preparation for “Q-day.” The company said the work will begin immediately with testing of quantum-resistant signatures, hybrid deployments that run alongside current systems, and a fallback process for moving users to safer accounts if existing cryptography is ever broken faster than expected. The plan places Ripple among the first blockchain firms trying to translate a distant but increasingly defined risk into engineering deadlines, validator upgrades, and wallet migration procedures. Notably, this move comes after XRPL's developers integrated post-quantum cryptography into AlphaNet, the project’s public developer network. Related Reading Algorand just jumped 50% after Google flags quantum risk for Bitcoin and Ethereum Algorand's ALGO ripped from $0.08 to $0.12 as traders reacted to Google spotlighting a real post quantum rollout. Apr 5, 2026 · Oluwapelumi Adejumo Google research sharpens industry attention Ripple's new timeline comes as fresh quantum research has narrowed some of the assumptions developers once relied on when estimating how much time blockchains had before a credible attack became possible. Ripple pointed to recent work from Google Quantum AI showing that roughly 500,000 physical qubits may be enough to attack ECDLP-256 cryptography, a reduction of about 20-fold from earlier estimates. Google’s work suggested that once a machine of that scale exists, it may be possible to derive a private key from an exposed public key in minutes rather than over impractical time horizons. That does not mean a machine capable of doing this exists today, nor does it imply that blockchains are on the verge of being broken. However, it narrows the gap