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Ethereum Foundation unveils plan to protect the network from quantum computers
The development team behind the second-largest cryptocurrency by market cap is moving into an active phase of preparation for the era of quantum computing. According to an official statement from the Ethereum Foundation (EF), the organization has launched a dedicated portal and a large-scale initiative to secure the protocol.
Research in this area has been ongoing for the past eight years, and previously private developments have now been made fully public.
Source: Ethereum Foundation
“The project began back in 2018 with research into signature aggregation mechanisms based on STARK technology. Today, it is a coordinated effort of multiple independent teams developing open-source code. More than ten client development teams meet weekly to build and test solutions under the PQ Interop program,” the statement said.
The new resource consolidates all information on how post-quantum cryptography will impact each layer of the blockchain.
The initiative’s website already includes a full roadmap, open repositories, and technical specifications. The knowledge base features 14 detailed answers to key questions across five categories, along with a series of six audio interviews.
Registration is also open for the second annual research conference, which will take place in Cambridge, UK, in October 2026.
Foundation representatives emphasized that Ethereum is designed as a resilient, sovereign infrastructure for decades to come, with security as a core property of the network.
“The blockchain must withstand upcoming shifts in how humanity processes information,” EF stated.
The foundation believes that quantum computers will eventually be capable of breaking public-key cryptography, which underpins authentication and consensus across most digital systems.
“Such machines may not emerge in the immediate future, but migrating a global protocol requires years of development and formal verification,” EF representatives noted.
They added that the engineering approach is based on the concept of cryptographic agility — the ability of a blockchain to upgrade its core security mechanisms without downtime or destabilization.
The transition is also seen as an opportunity to further strengthen decentralization and network architecture.
Roadmap
The protocol architecture team maintains a dynamic update schedule. Post-quantum stages are integrated across all three blockchain layers — consensus, data, and execution.
The plan is divided into several key phases. Phase I includes the creation of a post-quantum key registry at the consensus layer. At stage J, special precompiles will be added to the execution layer to support new digital signatures.
Roadmap of the quantum-resilience initiative (Ethereum Foundation)
Stage L will unify the consensus and data layers through post-quantum attestations and the launch of a simplified virtual machine, leanVM. Phase M includes signature aggregation and protection of large volumes of transient data.
The ultimate long-term goal is to achieve full post-quantum consensus across all layers of the network.
Meanwhile, last autumn, Vitalik Buterin outlined a concrete timeline for addressing this challenge. He stated that the blockchain must transition to quantum-resistant cryptography within four years.
This urgency stems from the growing vulnerability of traditional elliptic-curve cryptography. Buterin gave developers until the next U.S. presidential elections in 2028, calling the task an “existential challenge for the entire industry.”
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