The threat of quantum computing has long been debated across the cryptocurrency market, particularly regarding the digital signature systems that secure blockchains. While no existing quantum computer is currently capable of breaking modern cryptography, experts warn that sufficiently advanced systems in the future could compromise today’s encryption standards. This possibility has pushed major blockchain networks to begin preparing for long-term security challenges.
In his latest remarks, Buterin identified four key areas that may require changes: validator signatures, data storage structures, user account security, and certain zero-knowledge proofs used by layer-2 networks. He emphasized that such a transition would be technically complex and would need to be implemented gradually rather than through a single upgrade.
As part of the proposed solution, Buterin suggested moving away from the current BLS consensus signatures toward quantum-resistant hash-based signature schemes. He also highlighted the need to improve how large volumes of transaction data are verified and stored. These steps aim to strengthen Ethereum’s resilience and ensure the network remains secure in a post-quantum future.
