Sui to add post-quantum signature schemes for quantum-safe accounts
Quick TakeSui said it will integrate two post-quantum signature schemes approved by NIST.One scheme will serve Suis native accounts while the other will cover high-value vaults.Sui noted that users do not have to generate new phrases or move to another address to benefit from the quantum resistance updates. Sui (SUI) is integrating two post-quantum signature schemes approved by the National Institute of Standards and Technology (NIST), enabling users to optionally adopt quantum-safe keys derived from existing recovery phrases. According to its latest announcement, the blockchain network will add ML-DSA-65 as a native protocol signature scheme for everyday accounts and the hash-based SLH-DSA-SHA2-128s inside Move smart contracts for high-value vaults. The effort comes amid the growing threat of quantum computing to the security of onchain keys. “In most systems, an attacker needs a breach before they can start working on a key,” Sui said. “Onchain, the key is already published, exposed permanently the moment an account transacts.” Sui argued that a sufficiently capable quantum computer running Shors algorithm could eventually break the elliptic-curve cryptography securing most onchain accounts, and that a “harvest-now-forge-later” attack does not require quantum hardware because attackers can collect exposed public keys today and exploit them once such machines become available. “Sui was built