bitcoin-test-wallets-generator's Introduction

Bitcoin Test Wallets Generator

A Bitcoin test wallet’s generator to help bitcoin programmers.

Features

Generate six wallets (Alice, Bob, Carol, Dave Eve, Mallory)
Create a json file detailing all the cryptographic materials
Import private keys to Bitcoin Core

Requirements

>= NodeJS v10
jq - JSON processor
Bash or a Bash interpreter like Cygwin or Windows Subsystem for Linux (WSL)

How to use it

First launch Bitcoin Core so that the library can import the private keys.

Note	By default, the library is set to the regtest network and uses hardcoded 16 bytes entropy.

npx bitcointestwalletsgenerator

git clone [email protected]:bitcoin-studio/bitcoin-test-wallets-generator.git
node generate_wallets.js

Run with a new set of entropy

Note	16 bytes entropy = 12 words mnemonic 32 bytes entropy = 24 words mnemonic

npx bitcointestwalletsgenerator --entropy 16

Set the network

npx bitcointestwalletsgenerator --network mainnet

Set the network and entropy

npx bitcointestwalletsgenerator -n testnet -e 32

Verbose

npx bitcointestwalletsgenerator -v

Help

npx bitcointestwalletsgenerator --help

Check that private key import was successful with the listlabels command in Bitcoin Core console

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bitcoin-test-wallets-generator's Issues

Creating recipient's output should not involve his private key

I see this across several scenarios like for example in Simple Transaction (1 input, 1 output) - Legacy P2PKH. To add the recipient's output in the tx, you use his priv key:

const keyPairBob1 = bitcoin.ECPair.fromWIF(bob[1].wif, network)
const p2pkhBob1 = bitcoin.payments.p2pkh({pubkey: keyPairBob1.publicKey, network})
...
txb.addOutput(p2pkhBob1.address, ...)

This gives the false impression that to send to someone I need to have his WIF.

The example could instead just use directly Bob's publicKey from the wallets.json. It still shows how to construct a p2pkh address using bitcoinjs and also maintains that only public info is required from the recipient:

const p2pkhBob1 = bitcoin.payments.p2pkh({pubkey: Buffer.from(bob[1].pubKey, 'hex'), network})
...
txb.addOutput(p2pkhBob1.address, ...)

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