bip39-tx-signer

While there are some tools to easily generate your own HD-wallet using BIP39, signing a transaction on your cold storage hardware is still a hassle. I wrote this small CLI tool to make my life, and maybe yours, a bit easier.

How-To

1. Clone this repository
2. npm install
3. node index.js for help

Examples

To sign a transaction:

node index.js createEthTx --from "0xc2E87a289041fd0f04a954da6044ff8bb60927a4" --to "0xAAec6b3e1A7D9841255fAd5db80c027372496B2E" --nonce 0 --value 1 --gasPrice 21000000000 --gasLimit 21000

This will create a transaction for 1 ETH from 0xc2E87a289041fd0f04a954da6044ff8bb60927a4 to 0xAAec6b3e1A7D9841255fAd5db80c027372496B2E. You will then be asked to supply your mnemonic phrase using a prompt.

Caution : If you use --mnemonic to supply your phrase, be advised that your phrase can be recovered from your bash/shell history.