Vitalik Buterin warns AI could weaken the math behind crypto security

Warning of Weakening Lattice-Based Cryptography

Most crypto security debates focus on quantum computers, but Vitalik Buterin warns that AI-accelerated mathematical research poses a significant threat to lattice-based cryptography. Lattice-based schemes, such as ML-DSA and FHE, are widely used in cryptocurrencies like Ethereum.

Recommendations for Mitigating the Risk

Buterin recommends increasing key sizes, conservative settings, and storing encrypted data off-chain. He also advises key rotation for multisig signers and off-chain signature gathering to minimize exposure.

Shift towards Hash-Based Signature Schemes

Buterin suggests moving away from lattice-based cryptography and towards pure hash-based signature schemes like WOTS and SPHINCS+. Hash-based signatures rely on hash functions, which have fewer exotic math assumptions, making them less vulnerable to AI-driven attacks.

Impact on Users and Builders

The warning has no immediate price reactions or protocol exploits, but it emphasizes the need for long-term cryptographic strategy. Builders and investors relying on lattice-based tools should reconsider their parameter choices and projects storing encrypted data on-chain should reconsider their approach.