Ethereum Targets 128-Bit Security by 2026

Ethereum Foundation Targets 128-bit Security by 2026

• The Ethereum Foundation is prioritizing security over speed, aiming for 128-bit provable security for L1 zkEVMs by the end of 2026.
• A three-phase roadmap has been outlined to achieve this goal.
• The first phase involves a unified security assessment in early 2026.
• The second phase targets at least 100-bit provable security by mid-2026, with defined proof-size limits.
• The final phase requires full 128-bit provable security with smaller proofs and formal soundness arguments by the end of 2026.
• Recent cryptographic advances make these targets feasible, emphasizing the need to stabilize zkEVM architectures now for long-term security.

The Ethereum Foundation’s shift from performance to security focuses on achieving robust zkEVM architectures, marking a significant transition towards foundational stability.