TREE NEWS update: Mysten Labs chief cryptographer Kostas Chalkias said Sui’s devnet has completed testing of native post-quantum signature transactions, with the latest version supporting ML-DSA-65 verification for ordinary account transaction authorization. Sui also plans to add SLH-DSA-SHA2-128s signatures via Move smart contracts to protect high-value asset vaults, and aims to deploy post-quantum vaults to mainnet by end-2026 and bring native ML-DSA-65 accounts to testnet, targeting mainnet native account authentication in Q1 2027, subject to security audits and test results.
Sui Devnet Completes Native Post-Quantum Signature Test, Mainnet Account Auth Targeted for Q1 2027
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AI take
Sui is moving post-quantum readiness from research into protocol-level engineering, which matters because account authentication is the hardest place to retrofit cryptography — it touches every wallet and key-management flow. The two-track design is notable: native ML-DSA-65 for ordinary accounts, and optional SLH-DSA vaults for high-value assets, implying a deliberate trade-off between signature cost and conservatism. The stated 2027 timeline is contingent on audits, so the open question is whether that sequencing holds as the standard matures.
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