Ripple has unveiled a four-phase XRPL roadmap aimed at full post-quantum readiness by 2028, addressing future cryptographic threats from quantum computing.

Phase 4, targeting 2028, plans a production-ready XRPL upgrade with a new network amendment to enable post-quantum cryptography, focusing on throughput, validator coordination, and minimizing disruption.

Phase 4 will introduce post-quantum signatures and integrate with ecosystem partners, leveraging XRPL’s native key rotation and seed-based key generation to ease the transition.

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Phase 1 establishes a Quantum-Day response framework and migration from classical signatures, using post-quantum zero-knowledge proofs for secure fund recovery.

Industry voices are divided on quantum risks, with some leaders warning of threats and others seeing it as a manageable upgrade cycle.

The initiative is framed against research suggesting future quantum computers could derive private keys from exposed public keys, underscoring the need for robust defenses.

Roadmap prioritizes recovery mechanisms, testing quantum-resistant algorithms, and assessing performance impacts from larger signatures and higher computation costs.

Phase 1 will enforce a hard switch away from classical public-key signatures, enabling secure ownership verification via post-quantum zero-knowledge proofs.

Guiding principles emphasize cryptographic agility and performance to preserve XRPL’s speed and reliability while adopting multiple NIST-standardized algorithms.

Experts note that no quantum computer can break modern encryption today, but ongoing risk assessments and proactive upgrades are essential as quantum capabilities evolve.

Only a small fraction of XRP exposure exists due to dormant keys, with most accounts not revealing public keys and thus largely immune to quantum attacks.