Sui Designs Quantum-Safe Account Migration With Zero Asset Transfer Requirement

Sui plans seamless quantum-resistant migration using ML-DSA-65 and SLH-DSA-SHA2-128s, avoiding address changes despite larger signature sizes.

Woofun AI reports that Sui is engineering a transition mechanism toward quantum-resistant cryptography without requiring users to move assets to new addresses. The system utilizes ML-DSA-65 and SLH-DSA-SHA2-128s algorithms, scheduled for an August 6, 2026 migration, where Address Aliases will authorize signers associated with existing accounts to approve transactions exclusively. A separate derivation path ensures the migration process is resistant to incorrect or malicious use.

This approach reduces dependence on a single mathematical foundation, ensuring that if one security category fails, the other remains intact.

However, the upgrade involves significant storage overhead, as ML-DSA-65 signatures occupy 3,309 bytes compared to 64 bytes for standard Ed25519, while SLH-DSA-SHA2-128s produces 7,856-byte signatures. No immediate action is required from users, and the process strictly prohibits sending funds to new addresses.