Ethereum Develops New Signature Schemes for Quantum Security
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🔒✨ Ethereum prepares for quantum threats with new signature schemes. As quantum computing advances, Ethereum is transitioning to cryptographic methods that can withstand potential quantum attacks, particularly focusing on non-interactive multi-signature schemes. This article introduces a family of hash-based signature schemes as post-quantum alternatives to the current BLS signatures used in Ethereum’s proof-of-stake consensus. The proposed schemes, based on the XMSS signature scheme, are analyzed within a unified framework aimed at minimizing security loss and providing clear guidelines for hash function security. Notably, the work avoids random oracles in its security proofs, offering explicit requirements for hash functions and practical recommendations for their implementation, thereby enhancing the overall security landscape for Ethereum against future quantum threats.
