Ethereum
Ethereum Foundation Targets 2029 Quantum Resistance Goal for Base Layer
The Ethereum Foundation has set a developer roadmap aiming for base-layer quantum resistance by December 2029, calling the timeline an aggressive planning assumption.
The Ethereum Foundation's protocol cluster announced on September 7, 2026, a developer roadmap aimed at achieving post-quantum security across Ethereum's execution, consensus, and data availability layers by December 2029. The initiative focuses on long-term cryptographic resilience, specifically addressing the fact that Ethereum accounts reveal their public keys once they execute on-chain transactions.
The foundation emphasized that the December 2029 date is an internal target intended for developer alignment rather than an immediate risk warning for token holders. The schedule remains open to reassessment alongside independent experts in January 2027, and any final protocol changes depend on consensus across independent client teams and core developers during open All Core Devs meetings.
According to the foundation's post-quantum team, current quantum hardware is far from capable of compromising elliptic curve cryptography, which would require thousands of stable, error-corrected logical qubits. The foundation characterized the expectation of a cryptographically relevant quantum machine by 2030 as a deliberately aggressive planning baseline rather than a reflection of mainstream industry estimates.
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