ncx解密

<?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('3101B0895E804D559AA945D423422520'); echo $decode."\n";