解决Navicat数据库连接成功但密码忘记的问题


    目录
  • 解决方法
    • 一:通过注册表找到数据库连接的密码,再通过PHP解密
    • 二:通过Navicat导出连接,找到连接密码,再通过PHP进行解密

    解决方法
    一:通过注册表找到数据库连接的密码,再通过PHP解密
    具体操作:
    1.用 win + R 快捷键打开运行窗口,输入 regedit 打开注册表
    
    2.在注册表地址栏输入下面内容,查找Navicat密码保存位置,回车:
    
    计算机\HKEY_CURRENT_USER\SOFTWARE\PremiumSoft\Navicat\Servers 
    
    3.在servers目录下,找到需要找回密码的连接,鼠标左键点击,右侧下拉找到名称为 pwd 的一项,该项的数据即为密码。右键,点击修改,复制数据:
    
    
    
    4.使用 https://tool.lu/coderunner/ 在线工具,对复制下来的密码15057D7BA390进行解密
    5.将以下php解密代码复制到在线工具中,将复制的数据粘贴到代码的倒数第二行,点击执行,即可得到密码
    PS:该工具首行不能空行,否则执行会报错;另外,在代码倒数五六行需要指定Navicat版本
    
<?php
namespace FatSmallTools;
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, $this->aesIv);
    }
}
use FatSmallTools\NavicatPassword;
//需要指定版本,11或12
//$navicatPassword = new NavicatPassword(12);
$navicatPassword = new NavicatPassword(11);
//解密
$decode = $navicatPassword->decrypt('15057D7BA390');
echo $decode."\n";

    
    二:通过Navicat导出连接,找到连接密码,再通过PHP进行解密
    具体操作:
    1.打开Navicat,导航栏点击“文件”,点击“导出连接”,
    
    2.选择自己需要找回密码的连接,并勾选左下角“导出密码”,点击“确定”
    
     3.打开导出的文件,找到Password这一项,将引号中的数据复制下来
    
    4.打开并使用方法一步骤4.中的在线工具和代码,修改倒数第二行的内容为步骤三保存的数据833E4ABBC56C89041A9070F043641E3B,点击运行
    PS:由于我使用的是Navicat 12,在这种方法中需要修改代码中倒数第五六行的版本,否则解析出来乱码