Small golang utility used to sign EIP-712 hashes. Supports:
- ledgers
- mnemonics
- raw private keys
go install github.com/base-org/eip712signUsage of eip712sign: -hd-paths string Hierarchical deterministic derivation path for mnemonic or ledger (default "m/44'/60'/0'/0/0") -ledger Use ledger device for signing -mnemonic string Mnemonic to use for signing -prefix string String that prefixes the data to be signed (default "vvvvvvvv") -private-key string Private key to use for signing -suffix string String that suffixes the data to be signed (default "^^^^^^^^") -workdir string Directory in which to run the subprocess (default ".")eip712sign can either be run as a command wrapper, or data can be piped in via stdin. The former is recommended as it will only attempt to sign if the subprocess exit code is 0.
eip712sign --ledger -- <COMMAND>or
<COMMAND> | eip712sign --ledgerExample signing some bytes output from a forge script:
eip712sign --ledger -- forge script --rpc-url <RPC_URL> SomeScripteip712sign will parse the stdout from the subprocess, and by default, sign any hex string between the magic strings vvvvvvvv and ^^^^^^^^. This prefix + suffix can be configured using the -prefix and -suffix flags. In this example, SomeScript should print this to the console, for example:
function printDataToSign(bytes memory data) internal pure { console.log("vvvvvvvv"); console.logBytes(data); console.log("^^^^^^^^"); }...where data is 66 bytes in length.
Example output:
Compiling 5 files with 0.8.15 Solc 0.8.15 finished in 7.01s Compiler run successful! Script ran successfully. == Logs == vvvvvvvv 0x19011b6ca1022dcb8ee88e2ab8dd1adf6f6bfa6af586f8b074e99c952e6e3c6befadd5c5183a56f8aa2520c9522029fc20aba61ce6c6aa32aec3b00519c95eb819e8 ^^^^^^^^ forge exited with code 0 Domain hash: 0x1b6ca1022dcb8ee88e2ab8dd1adf6f6bfa6af586f8b074e99c952e6e3c6befad Message hash: 0xd5c5183a56f8aa2520c9522029fc20aba61ce6c6aa32aec3b00519c95eb819e8 Data: 0x19011b6ca1022dcb8ee88e2ab8dd1adf6f6bfa6af586f8b074e99c952e6e3c6befadd5c5183a56f8aa2520c9522029fc20aba61ce6c6aa32aec3b00519c95eb819e8 Signer: 0x4A02DE0C8a1C74AB99D1eCeb56d1d5f54B8293b0 Signature: 36b6a15e3e86b1ae44bdfc9183c4d86b0eaead44c838530ecb2e43dd0618559579195d42fe63868a44ee0279feef0181b1a9ed3b0faa89bf1ebd48b0f48f54bc1c```