The team said solutions targeting the execution layer will follow after the initial 2029 milestone.
Ethereum News
A team linked to the Ethereum Foundation has launched a dedicated resource hub to address potential quantum computing threats to the Ethereum network. The Post-Quantum Ethereum website went live on Tuesday, outlining a plan to integrate quantum-resistant solutions at the protocol level by 2029.
The team said solutions targeting the execution layer will follow after the initial 2029 milestone. While it acknowledged that no quantum threat to cryptography-secured blockchains is imminent, it argued that early action is necessary given the scale of the challenge.
"Migrating a decentralized, global protocol takes years of coordination, engineering, and formal verification," the team said. "The work must begin well before the threat arrives."
Quantum computing has generated ongoing concern across the blockchain industry, particularly around the security of private keys and wallet infrastructure. Analysts differ on the degree of exposure. Galaxy Digital analyst Will Owens has said only wallets with exposed public keys are at risk, while Charles Edwards of Capriole Investments has argued that all coins face some level of vulnerability.
The Post-Quantum team is building SNARK-based signature solutions, using Zero-Knowledge Succinct Non-Interactive Argument of Knowledge technology. The approach is intended to avoid the performance costs associated with some quantum-safe alternatives, which can increase bandwidth and storage demands and slow network throughput.
Quantum-resistant solutions will be deployed across Ethereum's consensus, execution, and data layers, according to the team. Standard Ethereum wallets will be the first priority, given that the team considers them to hold the largest concentration of value on the network.
High-value operational wallets tied to exchanges, bridges, and custody providers will be addressed in a subsequent phase. The team identified safely upgrading hundreds of millions of accounts as one of the most complex parts of the process, alongside preventing new bugs from being introduced during migration, maintaining network performance, and coordinating adoption across the broader ecosystem.
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