在php中使用mcrypt进行密码加密

我想知道我是否可以使用这个加密解密脚本进行密码加密并将其放入数据库?什么将是sql表密码列结构(目前是password varchar(32) NOT NULL)。请注意，此脚本使用32字节的十六进制密钥作为加密密钥。

<?php
define('ENCRYPTION_KEY', '32-byte hexadecimal encryption key');
function mc_encrypt($encrypt, $key)
{
  $encrypt = serialize($encrypt);
  $iv = mcrypt_create_iv(mcrypt_get_iv_size(MCRYPT_RIJNDAEL_256, MCRYPT_MODE_CBC), MCRYPT_DEV_URANDOM);
  $key = pack('H*', $key);
  $mac = hash_hmac('sha256', $encrypt, substr(bin2hex($key), -32));
  $passcrypt = mcrypt_encrypt(MCRYPT_RIJNDAEL_256, $key, $encrypt.$mac, MCRYPT_MODE_CBC, $iv);
  $encoded = base64_encode($passcrypt).'|'.base64_encode($iv);
  return $encoded;
}
function mc_decrypt($decrypt, $key)
{
  $decrypt = explode('|', $decrypt);
  $decoded = base64_decode($decrypt[0]);
  $iv = base64_decode($decrypt[1]);
  if(strlen($iv)!==mcrypt_get_iv_size(MCRYPT_RIJNDAEL_256, MCRYPT_MODE_CBC)){ return false; }
  $key = pack('H*', $key);
  $decrypted = trim(mcrypt_decrypt(MCRYPT_RIJNDAEL_256, $key, $decoded, MCRYPT_MODE_CBC, $iv));
  $mac = substr($decrypted, -64);
  $decrypted = substr($decrypted, 0, -64);
  $calcmac = hash_hmac('sha256', $decrypted, substr(bin2hex($key), -32));
  if($calcmac!==$mac){ return false; }
  $decrypted = unserialize($decrypted);
  return $decrypted;
}
?>