Understanding EIP-712; Secure and Readable Signed Messages
EIP-712 improves Ethereum message signing by introducing a structured, human-readable format that enhances security and usability compared to EIP-191, which relies on raw message hashes. By encoding messages with a defined schema, EIP-712 allows wallets to display clear signing requests, reducing phishing risks and preventing blind approvals. Key security benefits include domain separation to prevent replay attacks, input validation to ensure correct data, and expiration timestamps to limit signature reuse. Proper implementation, including strong domain separators and user-friendly wallet interfaces, ensures that EIP-712 remains a secure and transparent standard for Ethereum transactions.