ethauth

A command-line utility for signing and verifying Ethereum messages.

Features

• Signs Ethereum messages using a private key.
• Verifies Ethereum signatures against an address.

Installation

This project uses Go modules. To install, clone the repository and run:

go install

Usage

The ethauth command provides subcommands for signing and verifying messages:

Signing a Message

ethauth sign --private-key <your_private_key> --message "<your_message>"

• --private-key: Your Ethereum private key (hexadecimal string). Keep this secret!
• --message: The message to sign (string).

Verifying a Signature

ethauth verify --signature <your_signature> --message "<your_message>" --address <your_address>

• --signature: The signature to verify (hexadecimal string).
• --message: The original message (string).
• --address: The Ethereum address to verify against.