Fluton

Fluton applies fully homomorphic encryption to the intent execution layer. Users compose and encrypt orders locally, and solvers or sequencers compute only over ciphertext, unable to see amounts, destination addresses or strategy, which removes front-running, sandwiching and back-running as order-flow extraction. Cross-chain transport uses Union relayers and inter-blockchain communication to carry encrypted payloads, with EVM-side assets wrapped into encryptable tokens. Keys follow a layered model: user keys never leave the device, while solvers use an execution key split across coprocessors, with partial decryption inside trusted enclaves.

For compliance, the protocol issues non-inclusion proofs so a user can show funds are not on sanctions lists without revealing identity or balances, and can voluntarily share view keys with auditors. A private testnet drew more than 13,000 unique users, and the team packaged the capability into a TypeScript SDK that applications on Ethereum, Arbitrum, Base and Solana can call directly.