Vitalik Buterin Maps Quantum Upgrade to Ethereum to Replace Core Cryptography

Decrypt News Technology Vitalik Buterin Maps Quantum Upgrade to Ethereum to Replace Core Cryptography Buterin has outlined a phased roadmap to replace four vulnerable components of Ethereum's cryptographic architecture. By Jason Nelson Edited by Sebastian Sinclair Feb 26, 2026 Feb 26, 2026 3 min read Vitalik Buterin. Image: Siam Blockchain/Decrypt Create an account to save your articles. Add on Google Add Decrypt as your preferred source to see more of our stories on Google. In brief Buterin pointed out four Ethereum components that rely on cryptography vulnerable to quantum attacks. The plan replaces BLS, KZG, and ECDSA with hash-based, lattice-based, or STARK-based systems. Recursive aggregation aims to reduce high gas costs from quantum-safe signatures and proofs. Ethereum co-founder Vitalik Buterin on Thursday called for a broad overhaul of the network’s cryptographic foundations, warning that advances in quantum computing could break core parts of the protocol, while laying out a multi-stage plan to replace them.