Universal Bitcoin Address Generator

A light and easy to use PHP library for generating virtually any Bitcoin address formats along with their private and public keys

Features

• Custom-built functions to handle ECDSA key pair generation on the secp256k1 curve
• Generation of both uncompressed and compressed private and public keys
• Secure creation of private keys in Wallet Import Format (WIF)
• Support for multiple Bitcoin address formats: P2PKH, P2SH, P2WPKH, and P2WSH (SegWit)
• Support both for random private key generation or known private key to public key derivation
• Support for Brain Wallet (using passphrase and SHA256 algorithm)
• Utilizes cryptographically secure random number generator and functions
• Easy integration with existing PHP projects

Requirements

• PHP 7.1 or higher
• GMP PHP Extension

Usage

Include the BitcoinAddressGenerator.php file in your project, create an instance of the BitcoinAddressGenerator class and use its methods to generate Bitcoin addresses and keys, like in the following example:

<?php
require_once('BitcoinAddressGenerator.php');

$BTC = new BitcoinAddressGenerator();

echo "Private key: ".$BTC->getPrivateKey()."\n";
echo "Public key: ".$BTC->getPublicKey()."\n";
echo "Compressed Public Key: ".$BTC->getCompPublicKey()."\n";
echo "WIF: ".$BTC->getWIF()."\n";
echo "Compressed WIF: ".$BTC->getCompWIF()."\n";
echo "P2PKH Address: ".$BTC->getP2PKH()."\n";
echo "Compressed P2PKH Address: ".$BTC->getCompP2PKH()."\n";
echo "P2SH Address: ".$BTC->getP2SH()."\n";
echo "P2WPKH Address: ".$BTC->getP2WPKH()."\n";
echo "P2WSH Address: ".$BTC->getP2WSH()."\n";
?>

The above example will output something like this:

Private key: 90bae5e94c422b7d8ba8cda13b6f8974e63fa409e909afda2ffb400dd1bc448d
Public key: 04f94c255da6ffb59d1859fa08c2d4b4942b4cf533a6d7ec9eb242047a60f4801ef47fad20a3b143194bca890ab9edb7de80635e3441f95eaaa917f59ae96e63af
Compressed Public Key: 03f94c255da6ffb59d1859fa08c2d4b4942b4cf533a6d7ec9eb242047a60f4801e
WIF: 5Jv2WwACnLoqbuqmY7uix2YW2xWGoXSBS736yTW1vNZSh1J15vt
Compressed WIF: L253h83d18RjX6EFaMVi9sp39dzCkML93oeHNBy54aACPMHyMBS4
P2PKH Address: 1JkQH9oQ8EiCzCAW3D2auwXz7LfKiC1m8o
Compressed P2PKH Address: 1BdyvjvUgdmu1AtmhV3CTGJ9H79SfD4b4P
P2SH Address: 3QAsNPQJBgFs98YjPoDquuE3Bju6T6Jgr2
P2WPKH Address: bc1qwjhupxjkrs2sctfqwm2a4rlhhxna93kk29x7he
P2WSH Address: bc1u7znk6gn992vuzn9u5044rdurwa8yw5a5f5kaacgs555mnnrarvswkuv8v

Contributions

Contributions to BitcoinAddressGenerator are highly welcomed and appreciated. Whether it's reporting bugs, suggesting improvements, your input is valuable.

Help us

If you find this project useful and would like to support its development, consider making a donation. Any contribution is greatly appreciated!

Bitcoin (BTC) Addresses:

• 1LToggiof3rNUTCemJZSsxd1qubTYoSde6
• 3LToggio7Xx8qMsjCFfiarV4U2ZR9iU9ob

License

BitcoinAddressGenerator is licensed under the Apache License, Version 2.0. You are free to use, modify, and distribute the library in compliance with the license.

Copyright (C) 2024 Luca Soltoggio - https://www.lucasoltoggio.it/