Ethereum Users Can Now Add Quantum-Resistant Account Protection for Just $0.07, Researchers Say

TLDR: Researchers say Ethereum users can secure accounts against quantum attacks today for as little as $0.07. SPHINCS- verifies post-quantum signatures on-chain at ~150,000 gas using Ethereum’s native KECCAK256 opcode. C11 and C12 variants support hardware wallet signing, tested at 390s and 47.5s on a Ledger secure element. Future leanSPHINCS variant targets STARK aggregation, cutting [...]

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