Ethereum researchers are redirecting development priorities away from performance improvements toward cryptographic defenses against quantum computing and artificial intelligence threats.
Ethlabs announced it will withdraw the Quick Slots proposal from Ethereum's planned Hegotá upgrade, reorienting resources toward a security initiative called pqai27. The roadmap aims to make Ethereum's core infrastructure and user accounts resistant to emerging cryptographic threats by 2027.
Abandoning Faster Block Production
Ethlabs had previously supported Quick Slots (EIP-8198), which would reduce Ethereum's block production interval from 12 seconds to 10 seconds to accelerate transaction confirmation and improve network performance. The research group determined that preparing Ethereum for future cryptographic vulnerabilities should take priority.
The group indicated that FOCIL, a planned censorship-resistance feature, should proceed only if development does not interfere with the quantum-security timeline. Frame Transactions (EIP-8141), which could enable quantum-resistant authentication methods, will remain central to the plan.
Two-Stage Quantum-Ready Timeline
The pqai27 proposal addresses two potential security risks: quantum computers capable of breaking existing cryptographic systems, and advanced AI models that could identify vulnerabilities in software and mathematical algorithms.
The transition divides into two stages. The first, pqai-ready, would upgrade Ethereum's consensus layer with post-quantum cryptography and provide users account migration to more secure authentication systems. The network could experience reduced performance during this phase.
The second stage, pqai-scaled, aims to restore full network functionality while supporting quantum-resistant transactions and data availability at current volumes. This requires post-quantum signature aggregation and improved data-availability technology.
More Aggressive Than Ethereum Foundation Timeline
Ethlabs' 2027 target substantially accelerates the Ethereum Foundation's existing roadmap. In September, the Foundation established December 2029 as its deadline for making Ethereum's execution, consensus, and data layers quantum-resistant, including changes to account signatures and validator authentication.
The urgency reflects the possibility that sufficiently powerful quantum computers could eventually derive private keys from exposed public keys, potentially allowing unauthorized transactions and asset theft. Neither quantum computing nor AI currently presents an immediate threat to Ethereum's security, but migrating an established blockchain, its wallets, and validator infrastructure requires extensive testing and coordination.
