Aptos Proposes Post-Quantum Signatures With AIP-137
Aptos, a major layer-1 proof-of-stake blockchain, is moving to support post-quantum digital signatures to address rising concerns about quantum computing breaking current cryptographic security. Aptos developers have proposed AIP-137, which would introduce the SLH-DSA hash-based signature scheme (FIPS 205 standard) as an optional, opt-in account feature, making Aptos one of the first blockchains to natively support post-quantum accounts. The proposal responds to warnings that sufficiently advanced quantum computers could eventually forge traditional digital signatures, threatening blockchain security. Existing accounts would not be affected unless users choose to adopt the new scheme. This shift aligns with broader industry moves: Solana has tested quantum-resistant transactions, and the Bitcoin community is debating similar measures, though opinions differ on the urgency of the threat. Meanwhile, real-world asset tokenization and consumer-focused applications continue to grow on Aptos.
