Ethereum Research Proposes Post-Quantum Signature Scheme
- An Ethereum Research proposal introduces a post-quantum signature verification method for the EVM.
- The approach is based on SPHINCS+ and optimized for Ethereum’s execution model using KECCAK256 instead of SHAKE256.
- Verification gas costs are estimated between approximately 127,000 to 150,000, higher than normal but feasible for high-value transactions.
The proposal by Ethereum researcher nicocsgy aims to enable quantum-resistant signature verification within the existing EVM framework without requiring a full protocol upgrade. This could provide a practical migration path as quantum threats become more pressing.
This initiative highlights the importance of preparing for potential future cryptographic vulnerabilities by ensuring that wallets and smart accounts can verify post-quantum signatures effectively. (Source)
