ZKSAFE

ZKSAFE is a protocol-level wallet security scheme that deploys a dedicated Safebox smart contract for every user as a personal vault, where withdrawals require both an on-chain password and the private key. The password is verified with zero-knowledge proofs (ZK-SNARKs); the protocol neither custodies private keys nor stores passwords, and it has no backend server or administrator privileges — contract ownership rests entirely with the user.

In practice it divides labour with wallets such as MetaMask: the wallet handles the private key, the ZKSAFE browser extension handles the password. After transferring ERC-20 tokens or ERC-721 assets to the Safebox address, withdrawals can only go to the owner address to avoid mistakes. If the password is forgotten or the key lost, ownership of the vault can be moved to a new wallet through a pre-set multi-signature wallet or with password plus key, completing a social recovery. The project ships a Chrome extension and cites a SlowMist audit report.