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Sui SUI

Rank #10 by market capNo quantum-safe path live
Market cap
$3.0B
▲ 5.59% 24h
DeFi TVL
$454.2M
DefiLlama
Exposed share of supply
n/a
No published estimate
Value in exposed keys
n/a
Signature scheme
Ed25519, secp256k1 ECDSA, secp256r1 ECDSA and multisig
Key hidden until first signature
Yes

A Sui address is BLAKE2b-256 of a 1-byte scheme flag concatenated with the public key, so a receive-only address has not revealed its key. Every serialized transaction signature is flag || sig || pk, so the public key is published with the first signed transaction and stays linked to the address.

Quantum-safe path
None live

Not live on mainnet. Mysten Labs' post (18 August 2026) picks ML-DSA-65 (NIST Level 3) for native account authentication and SLH-DSA-SHA2-128s vaults in Move for high-value holdings; quantum-safe vaults are targeted for mainnet in 2026, native ML-DSA-65 accounts for testnet by end of 2026 and mainnet in Q1 2027, subject to audits. Address aliases are already deployed and are meant to let an existing account swap in a post-quantum key while keeping its address; adoption is opt-in.

No published exposure measurement yet

No measurement of the share of SUI in addresses that have already signed was found. The address is a hash, so exposure is not total by construction; it depends on the signed versus receive-only split, which can be computed from chain state.

Sources