如何查看navicat已连接用户的密码

1：从注册表中查看加密后的密码。

　　1.1：windows键+r，输入 regedit

　　1.2：在注册表中找到 \HKEY_CURRENT_USER\SOFTWARE\PremiumSoft\navicat\servers 并找到 UserName 即账号

　 1.3：从上面步骤中，打开注册表、并找到如下图片中的密码栏：Pwd（加密的密码）

2：解密密码，打开在线工具运行一下代码，并修改倒数第二行代码，将上面的密码写入decrypt(’’);中，点击运行。即可

　　2.1：在线编码网址，https://tool.lu/coderunner/

2.2：解密代码：

<?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(12);
$navicatPassword = new NavicatPassword(11);

//解密
$decode = $navicatPassword->decrypt('7ED5BEA81394C9D81F75');
echo $decode."\n";
?>