Sui to Deploy Quantum-Safe Vaults on Mainnet This Year, Adds NIST-Approved Post-Quantum Signatures
Sui announced plans to bring quantum-safe vaults to its mainnet within this year, introducing two NIST-approved post-quantum signature schemes. ML-DSA-65 will serve as the native protocol signature for regular accounts, while the hash-based SLH-DSA-SHA2-128s is designated for high-value vaults within Move smart contracts. The move responds to the potential threat quantum computing poses to existing elliptic curve cryptography. According to Sui, because Sui keys are deterministically derived from seeds, users can upgrade to quantum-safe keys using their existing recovery mnemonic. An already live address-alias feature lets current accounts update authorization keys without moving assets. The quantum-safe vaults are slated for mainnet deployment this year, with native ML-DSA-65 accounts expected on testnet by year-end. Account authentication is targeted for mainnet in Q1 2027. Sui said the upgrade is incremental and optional, leaving existing accounts and contracts unaffected.








