忘記數據庫密碼？通過Navicat找回！！

平時工作中，通過Navicat鏈接數據庫，但是沒有記住密碼，當通過其他方式進行鏈接時，總是想不起來。除改密碼外，可以通過腳本找回。

1、導出忘記密碼的數據庫連接

在Navicat中 點擊文件導出連接

 

 選擇忘記密碼的連接

 

 勾選下方的導出密碼

通過notepad++打開文件，找到 Password="*******"

復制引號內的內容

2、通過PHP腳本對密碼進行解析 如果自己本地有環境可以直接替換密碼然后運行，如果沒有環境，可以使用線上環境 https://tool.lu/coderunner/#

<?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);


 

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

指定 Navicat版本 我這里是12版本的，倒數第三行 輸入12

將第一步拿到的密碼  替換掉 倒數第二行的 ***********

 

點擊執行，執行后的結果會在右側輸出。

然后進行連接測試。

本人sqlserver 解密成功