解決Navicat數(shù)據(jù)庫連接成功但密碼忘記的問題

更新時間：2023年08月31日 11:36:34 作者：Covarde.H

這篇文章給大家介紹了Navicat數(shù)據(jù)庫連接成功,密碼忘記如何解決,文中給大家介紹了兩種解決方法,有詳細的圖文講解,需要的朋友可以參考下

解決方法

一：通過注冊表找到數(shù)據(jù)庫連接的密碼，再通過PHP解密

具體操作：

1.用 win + R 快捷鍵打開運行窗口，輸入 regedit 打開注冊表

2.在注冊表地址欄輸入下面內(nèi)容，查找Navicat密碼保存位置，回車:

計算機\HKEY_CURRENT_USER\SOFTWARE\PremiumSoft\Navicat\Servers

3.在servers目錄下，找到需要找回密碼的連接，鼠標(biāo)左鍵點擊，右側(cè)下拉找到名稱為 pwd 的一項，該項的數(shù)據(jù)即為密碼。右鍵，點擊修改，復(fù)制數(shù)據(jù)：

4.使用 https://tool.lu/coderunner/ 在線工具，對復(fù)制下來的密碼15057D7BA390進行解密

5.將以下php解密代碼復(fù)制到在線工具中，將復(fù)制的數(shù)據(jù)粘貼到代碼的倒數(shù)第二行，點擊執(zhí)行，即可得到密碼

PS：該工具首行不能空行，否則執(zhí)行會報錯；另外，在代碼倒數(shù)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";