Help Registration Panel for Acis Rev 401 key encryption Bcrypt

I am adapting a php code that allows new players to create accounts, the issue is that it generates the keys in a way that when they try to enter the server, it does not allow them to enter due to a password error.
 

function encPass($pass){
  return base64_encode(pack("H*",sha1(utf8_encode($pass))));
}

function HashAleatorio($tamanho = 70){
  $chars = "abcdefghijkmnopqrstuvwxyz023456789";
  srand((double)microtime() * 1000000);
  $i = 1;
  $pass = '';
  while($i <= $tamanho){
    $num = rand() % 33;
    $tmp = substr($chars,$num,1);
    $pass = $pass.$tmp;
    $i++;
  }
  return $pass;
}

And from what I see Acis rev401 uses Bcrypt to encrypt the keys generated by the game's self-account. Since I don't understand anything about keys, I would like to know if someone can help me adapt the PHP code so that it generates keys that can be used to log into the game. Or I wonder if there is any other alternative method that I am not aware of.
Bcrypt example code:
 

 * String strong_salt = BCrypt.gensalt(10)<br />
 * String stronger_salt = BCrypt.gensalt(12)<br />
 * </code>
 * <p>
 * The amount of work increases exponentially (2**log_rounds), so each increment is twice as much work. The default log_rounds is 10, and the valid range is 4 to 30.
 * @author Damien Miller
 * @version 0.2
 */
public class BCrypt
{
	// BCrypt parameters
	private static final int GENSALT_DEFAULT_LOG2_ROUNDS = 10;
	private static final int BCRYPT_SALT_LEN = 16;

	// Blowfish parameters
	private static final int BLOWFISH_NUM_ROUNDS = 16;

	// Initial contents of key schedule
	private static final int[] P_ORIG =
	{
		0x243f6a88,
		0x85a308d3,
		0x13198a2e,
		0x03707344,