February 27 News: Vitalik Buterin announced the Ethereum quantum resistance roadmap, clearly proposing upgrades across four key areas: validator signatures, data storage, user account signatures, and zero-knowledge proofs, to enhance network security in the era of quantum computing. As the potential threat of quantum supercomputers becomes an industry focus, Ethereum’s quantum security solutions are attracting close attention from developers and investors.
At the consensus layer, Buterin recommends replacing the current BLS signature scheme with a “lightweight” quantum-safe hash signature. He emphasizes that the choice of hash function is critical, as this could be Ethereum’s long-term or even “last” core hash algorithm upgrade. Previously, Justin Drake proposed the “Lite Ethereum” concept in 2025, aiming to strengthen the network’s resistance to quantum attacks.
In terms of data availability, Ethereum currently relies on KZG commitments for storing and verifying data. According to the new roadmap, future plans may involve replacing this with a quantum-resistant STARK proof system, though this transition involves extensive engineering optimization and protocol restructuring. On the user account layer, there are potential risks with ECDSA signatures; the solution is to promote account abstraction upgrades, allowing addresses to adopt quantum-safe signature algorithms based on lattices. However, these new signatures are more computationally complex, which will increase gas costs.
(Source: ETHresearch) To address on-chain verification costs, Buterin proposes recursive signature and proof aggregation at the protocol layer, consolidating thousands of signatures into a single main proof, significantly reducing computational burden. This “verification frame” mechanism can accommodate numerous signatures and proof data within a single block, maintaining security redundancy while controlling costs.
Additionally, Buterin mentioned the Ethereum Foundation’s Strawman plan, which aims to gradually shorten block slot times and final confirmation times in the future. As the path to quantum resistance becomes clearer, the security architecture of the Ethereum network and its long-term technical evolution are becoming key topics of market discussion.
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