本机装的MySQL数据库密码忘记了，打开了Navicat连接过数据库，不过密码是加密的，怎么办呢？今天给大家分享如何查看Navicat加密的数据库密码，感兴趣的朋友一起看看吧。

查看Navicat加密的数据库密码

通过导出连接信息

点击navicat左上角导出连接信息 然后选择你要查看密码的数据库信息勾选导出密码

会导出一个.ncx文件 通过记事本打开 然后找到PassWord的加密密码

将Password引号后面的加密密钥7E61A6223B985D31FCC549579B536956复制出来

打开PHP在线运行工具，粘贴解密代码

1. 工具地址：https://tool.lu/coderunner 或者搜索 PHP在线运行
2. 复制解密代码到工具中

<?php
class NavicatPassword
{
    protected $version = 0;
    protected $aesKey = 'libcckeylibcckey';
    protected $aesIv = 'libcciv libcciv ';
    protected $blowString = '3DC5CA39';
    protected $blowKey = null;
    protected $blowIv = null;
      
    public function __construct($version = 12)
    {
        $this->version = $version;
        $this->blowKey = sha1('3DC5CA39', true);
        $this->blowIv = hex2bin('d9c7c3c8870d64bd');
    }
      
    public function encrypt($string)
    {
        $result = FALSE;
        switch ($this->version) {
            case 11:
                $result = $this->encryptEleven($string);
                break;
            case 12:
                $result = $this->encryptTwelve($string);
                break;
            default:
                break;
        }
          
        return $result;
    }
      
    protected function encryptEleven($string)
    {
        $round = intval(floor(strlen($string) / 8));
        $leftLength = strlen($string) % 8;
        $result = '';
        $currentVector = $this->blowIv;
          
        for ($i = 0; $i < $round; $i++) {
            $temp = $this->encryptBlock($this->xorBytes(substr($string, 8 * $i, 8), $currentVector));
            $currentVector = $this->xorBytes($currentVector, $temp);
            $result .= $temp;
        }
          
        if ($leftLength) {
            $currentVector = $this->encryptBlock($currentVector);
            $result .= $this->xorBytes(substr($string, 8 * $i, $leftLength), $currentVector);
        }
          
        return strtoupper(bin2hex($result));
    }
      
    protected function encryptBlock($block)
    {
        return openssl_encrypt($block, 'BF-ECB', $this->blowKey, OPENSSL_RAW_DATA|OPENSSL_NO_PADDING);
    }
      
    protected function decryptBlock($block)
    {
        return openssl_decrypt($block, 'BF-ECB', $this->blowKey, OPENSSL_RAW_DATA|OPENSSL_NO_PADDING);
    }
      
    protected function xorBytes($str1, $str2)
    {
        $result = '';
        for ($i = 0; $i < strlen($str1); $i++) {
            $result .= chr(ord($str1[$i]) ^ ord($str2[$i]));
        }
          
        return $result;
    }
      
    protected function encryptTwelve($string)
    {
        $result = openssl_encrypt($string, 'AES-128-CBC', $this->aesKey, OPENSSL_RAW_DATA, $this->aesIv);
        return strtoupper(bin2hex($result));
    }
      
    public function decrypt($string)
    {
        $result = FALSE;
        switch ($this->version) {
            case 11:
                $result = $this->decryptEleven($string);
                break;
            case 12:
                $result = $this->decryptTwelve($string);
                break;
            default:
                break;
        }
          
        return $result;
    }
      
    protected function decryptEleven($upperString)
    {
        $string = hex2bin(strtolower($upperString));
          
        $round = intval(floor(strlen($string) / 8));
        $leftLength = strlen($string) % 8;
        $result = '';
        $currentVector = $this->blowIv;
          
        for ($i = 0; $i < $round; $i++) {
            $encryptedBlock = substr($string, 8 * $i, 8);
            $temp = $this->xorBytes($this->decryptBlock($encryptedBlock), $currentVector);
            $currentVector = $this->xorBytes($currentVector, $encryptedBlock);
            $result .= $temp;
        }
          
        if ($leftLength) {
            $currentVector = $this->encryptBlock($currentVector);
            $result .= $this->xorBytes(substr($string, 8 * $i, $leftLength), $currentVector);
        }
          
        return $result;
    }
      
    protected function decryptTwelve($upperString)
    {
        $string = hex2bin(strtolower($upperString));
        return openssl_decrypt($string, 'AES-128-CBC', $this->aesKey, OPENSSL_RAW_DATA, $this->aesIv);
    }
};
 
//需要指定版本两种，11或12
//$navicatPassword = new NavicatPassword(11);
$navicatPassword = new NavicatPassword(12);
  
//解密
//$decode = $navicatPassword->decrypt('15057D7BA390');
$decode = $navicatPassword->decrypt('7E61A6223B985D31FCC549579B536956');  // 替换成上一步的数据数值
echo $decode."\n";
?>

修改倒数第三行NavicatPassword的版本值

点击执行，右侧得到解密后的密码