如何查看Navicat加密的数据库密码

目录

• 查看Navicat加密的数据库密码
• 1、打开运行窗口，输入regedit，点击确认按钮，打开注册表编辑器
• 2、在注册表中找到Navicat加密后的密码
• 3、打开PHP在线运行工具，粘贴解密代码
• 4. 修改倒数第三行NavicatPassword的版本值
• 5、更改倒数第二行decrypt()方法中的字符串为Navicat加密后的密码
• 6、点击执行，右侧得到解密后的密码
• 附录：navicat找出加密的密码
• Navicat导出（推荐）
• 解密密文

查看Navicat加密的数据库密码

背景：本机装的MySQL数据库密码忘记了，打开了Navicat连接过数据库，不过密码是加密的，既然能加密那就能解密，哈哈哈哈。

解密后发现密码居然是password，好尴尬

1、打开运行窗口，输入regedit，点击确认按钮，打开注册表编辑器

2、在注册表中找到Navicat加密后的密码

• 展开【HKEY_CURRENT_USER】
• 展开【Software】
• 展开【PremiumSoft】
• 展开【NavicatPG】
• 展开【Servers】
• 选择 【MySQL】
• 右侧找到 pwd，双击并复制数值数据

3、打开PHP在线运行工具，粘贴解密代码

• 工具地址：https://tool.lu/coderunner
• 复制解密代码到工具中

<?php
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);
    }
};

//需要指定版本两种，11或12
//$navicatPassword = new NavicatPassword(11);
$navicatPassword = new NavicatPassword(12);

//解密
//$decode = $navicatPassword->decrypt('15057D7BA390');
$decode = $navicatPassword->decrypt('E75BF077AB8BAA3AC2D5');  // 替换成上一步的数据数值
echo $decode."\n";
?>

4. 修改倒数第三行NavicatPassword的版本值

5、更改倒数第二行decrypt()方法中的字符串为Navicat加密后的密码

6、点击执行，右侧得到解密后的密码

附录：navicat找出加密的密码

• Navicat（11.2.7、12.1.15、15.1.17、16.0.6上述版本均已通过测试）
• 进入注册表进行查询

使用【Win】+ 【R】组合快捷键，快速打开运行命令框，在打开后面键入命令：【Regedit】打开注册表编辑器

文件路径：

计算机\HKEY_CURRENT_USER\SOFTWARE\PremiumSoft\Navicat\Servers\

以Navicat16为例，通过上方路径，找到注册表中存储密码值的位置（如下图），选中要查看密码的连接名称，双击Pwd项，复制对应的值，至此获得了密文

Navicat导出（推荐）

以Navicat16为例，菜单栏上点击文件，选择导出连接...，一定要选中导出密码！！！导出格式为*.ncx（该ncx本质上是xml文件，文件中包含连接的全部信息）

注：Navicat11版本没有勾选导出密码选项，直接导出即可；Navicat12+版本要勾选【导出密码】选项！

解密密文

Go

https://www.nhooo.com/tool/java8/

运行代码

Go

import javax.crypto.Cipher;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;
import javax.xml.bind.DatatypeConverter;
import java.nio.charset.StandardCharsets;
import java.security.MessageDigest;
import java.util.Arrays;
public class Main {
    public static void main(String []args) {
//navicat11解密        Navicat11Cipher de = new Navicat11Cipher();
        System.out.println(de.decryptString("密文放此处"));
//navicat12+解密        Navicat12Cipher de12 = new Navicat12Cipher();
        System.out.println(de12.decryptString("密文放此处"));
    }
    static class Navicat11Cipher {
        public static final String DefaultUserKey = "3DC5CA39";
        private static byte[] _IV;
        private static SecretKeySpec _Key;
        private static Cipher _Encryptor;
        private static Cipher _Decryptor;
        private static void initKey(String UserKey) {
            try {
                MessageDigest sha1 = MessageDigest.getInstance("SHA1");
byte[] userkey_data = UserKey.getBytes(StandardCharsets.UTF_8);
                sha1.update(userkey_data, 0, userkey_data.length);
                _Key = new SecretKeySpec(sha1.digest(), "Blowfish");
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
        private static void initChiperEncrypt() {
            try {
// Must use NoPadding                _Encryptor = Cipher.getInstance("Blowfish/ECB/NoPadding");
                _Encryptor.init(Cipher.ENCRYPT_MODE, _Key);
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
        private static void initChiperDecrypt() {
            try {
// Must use NoPadding                _Decryptor = Cipher.getInstance("Blowfish/ECB/NoPadding");
                _Decryptor.init(Cipher.DECRYPT_MODE, _Key);
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
        private static void initIV() {
            try {
byte[] initVec = DatatypeConverter.parseHexBinary("FFFFFFFFFFFFFFFF");
                _IV = _Encryptor.doFinal(initVec);
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
        private void xorBytes(byte[] a, byte[] b) {
for (int i = 0; i < a.length; i++) {
int aVal = a[i] & 0xff; // convert byte to integerint bVal = b[i] & 0xff;
                a[i] = (byte) (aVal ^ bVal); // xor aVal and bVal and typecast to byte            }
        }
        private void xorBytes(byte[] a, byte[] b, int l) {
for (int i = 0; i < l; i++) {
int aVal = a[i] & 0xff; // convert byte to integerint bVal = b[i] & 0xff;
                a[i] = (byte) (aVal ^ bVal); // xor aVal and bVal and typecast to byte            }
        }
        static {
            initKey(DefaultUserKey);
            initChiperEncrypt();
            initChiperDecrypt();
            initIV();
        }
        private byte[] Encrypt(byte[] inData) {
            try {
byte[] CV = Arrays.copyOf(_IV, _IV.length);
byte[] ret = newbyte[inData.length];
int blocks_len = inData.length / 8;
int left_len = inData.length % 8;
for (int i = 0; i < blocks_len; i++) {
byte[] temp = Arrays.copyOfRange(inData, i * 8, (i * 8) + 8);
                    xorBytes(temp, CV);
                    temp = _Encryptor.doFinal(temp);
                    xorBytes(CV, temp);
                    System.arraycopy(temp, 0, ret, i * 8, 8);
                }
if (left_len != 0) {
                    CV = _Encryptor.doFinal(CV);
byte[] temp = Arrays.copyOfRange(inData, blocks_len * 8, (blocks_len * 8) + left_len);
                    xorBytes(temp, CV, left_len);
                    System.arraycopy(temp, 0, ret, blocks_len * 8, temp.length);
                }
return ret;
            } catch (Exception e) {
                e.printStackTrace();
return null;
            }
        }
        public String encryptString(String inputString) {
            try {
byte[] inData = inputString.getBytes(StandardCharsets.UTF_8);
byte[] outData = Encrypt(inData);
return DatatypeConverter.printHexBinary(outData);
            } catch (Exception e) {
                e.printStackTrace();
return"";
            }
        }
        private byte[] Decrypt(byte[] inData) {
            try {
byte[] CV = Arrays.copyOf(_IV, _IV.length);
byte[] ret = newbyte[inData.length];
int blocks_len = inData.length / 8;
int left_len = inData.length % 8;
for (int i = 0; i < blocks_len; i++) {
byte[] temp = Arrays.copyOfRange(inData, i * 8, (i * 8) + 8);
                    temp = _Decryptor.doFinal(temp);
                    xorBytes(temp, CV);
                    System.arraycopy(temp, 0, ret, i * 8, 8);
for (int j = 0; j < CV.length; j++) {
                        CV[j] = (byte) (CV[j] ^ inData[i * 8 + j]);
                    }
                }
if (left_len != 0) {
                    CV = _Encryptor.doFinal(CV);
byte[] temp = Arrays.copyOfRange(inData, blocks_len * 8, (blocks_len * 8) + left_len);
                    xorBytes(temp, CV, left_len);
for (int j = 0; j < temp.length; j++) {
                        ret[blocks_len * 8 + j] = temp[j];
                    }
                }
return ret;
            } catch (Exception e) {
                e.printStackTrace();
return null;
            }
        }
        public String decryptString(String hexString) {
            try {
byte[] inData = DatatypeConverter.parseHexBinary(hexString);
byte[] outData = Decrypt(inData);
returnnew String(outData, StandardCharsets.UTF_8);
            } catch (Exception e) {
                e.printStackTrace();
return"";
            }
        }
    }
    static class Navicat12Cipher {
        private static SecretKeySpec _AesKey;
        private static IvParameterSpec _AesIV;
        static {
            _AesKey = new SecretKeySpec("libcckeylibcckey".getBytes(StandardCharsets.UTF_8), "AES");
            _AesIV = new IvParameterSpec("libcciv libcciv ".getBytes(StandardCharsets.UTF_8));
        }
        public String encryptString(String plaintext) {
            try {
                Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
                cipher.init(Cipher.ENCRYPT_MODE, _AesKey, _AesIV);
byte[] ret = cipher.doFinal(plaintext.getBytes(StandardCharsets.UTF_8));
return DatatypeConverter.printHexBinary(ret);
            } catch (Exception e) {
                e.printStackTrace();
return"";
            }
        }
        public String decryptString(String ciphertext) {
            try {
                Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
                cipher.init(Cipher.DECRYPT_MODE, _AesKey, _AesIV);
byte[] ret = cipher.doFinal(DatatypeConverter.parseHexBinary(ciphertext));
returnnew String(ret, StandardCharsets.UTF_8);
            } catch (Exception e) {
                e.printStackTrace();
return"";
            }
        }
    }
}

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