Aptos's new proposal suggests introducing quantum-resistant signatures as an optional account signature type.

PANews reported on December 19th, citing Cointelegraph, that Aptos announced a proposal, AIP-137, on Thursday to introduce quantum-resistant signatures, aiming to address the network's reliance on digital signatures for ownership verification, transaction authorization, and overall security. While existing encryption schemes remain secure to traditional computers, researchers warn that sufficiently powerful quantum computers could one day be able to forge these schemes, potentially compromising account security retroactively. If approved by governance, AIP-137 will introduce SLH-DSA (a hash-based digital signature scheme standardized as FIPS 205) as an optional account signature type. This would make Aptos one of the first blockchains to natively support quantum-resistant accounts. However, existing accounts will remain unaffected; quantum-resistant accounts will only be an optional feature for users.

Previously, it was reported that Solana would collaborate with Project Eleven to build quantum-resistant signatures .