private function generateNewAddress(int $lastIndex) : array
{
$lastIndex++;
$master = $this->masterKey;
$address = BIP32::build_address($master, "m/44'/0'/0'/0/{$lastIndex}")[0];
return [$address, $lastIndex];
}
/**
* Method uses XPUB to generate next deterministic address.
*
* @param string $xpub Master public key (XPUB)
* @param int $index Index of the deterministic address
*
* @return string Generated address for specified index
*/
public static function generateAddress($xpub, $index = 0)
{
if (!class_exists('BitWasp\\BitcoinLib\\BIP32')) {
// if class BIP32 is not available, trigger an error
trigger_error("Library BitWasp/bitcoin-lib-php is required to generate deterministic address", E_USER_ERROR);
}
Console::debug("Generating address for XPUB '%s' index %d", $xpub, $index);
$address = BIP32::build_address($xpub, sprintf('0/%d', $index))[0];
Console::debug("Generated address (index %d): '%s'", $index, $address);
return $address;
}
