Aptos is proposing an optional post-quantum signature scheme called SLH-DSA to protect against future quantum computing threats to blockchain security. This move addresses risks to digital signatures used for account ownership and transactions, making Aptos a pioneer in quantum-resistant cryptography for layer-1 networks. Aptos Improvement Proposal AIP-137 introduces SLH-DSA, a NIST-standardized hash-based scheme resistant to [...]