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2020-12-11

2020-12-11 11:32:00  阅读:201  来源: 互联网

标签:11 function 12 return string currentVector protected 2020 result


如果想要破解一个已经连接好的数据库密码,可以参考这个方法。

 

一、查看navicat保存的密码

1. 进入注册表

  • win + R
  • 输入 regedit 回车

在这里插入图片描述

2.找到 navicat 中存储的密码

  • HKEY_CURRENT_USER
  • Software
  • PremiumSoft
  • Navicat
  • Servers
  • 点击要破解密码的数据库,右边会出现 Pwd,值就是加密后的密码

 

数据库密码,是被加密了的。

到这里 , 已被加密过的密码已经找到。下一步进行解密。

 

二、解密密码

1. GitHub上一个大神写了个PHP,可以直接破解这个密码,一切成功的开始。https://github.com/tianhe1986/FatSmallTools

2. 秀儿来了!!本地没有安装PHP,直接找个在线运行的工具  https://tool.lu/coderunner/

3. 粘贴代码,修改参数,一切顺利

在这里插入图片描述

<?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');
$decode = $navicatPassword->decrypt('73EFB530B74DCCE359F34539742ECD9E8D1FE826F5C263CE');
echo $decode."\n";
 

标签:11,function,12,return,string,currentVector,protected,2020,result
来源: https://blog.csdn.net/qq_34462698/article/details/111031606

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