解密Navicat密码（Java）

最近从Navicat换到了DBeaver，导出配置文件发现配置文件里的密码都是加密的，看网上的都是给的PHP代码，因为环境问题，就算是在线上运行的PHP代码也会报错，所以就把这段代码改成Java了。

package com.unicdata.system.controller.marketing;/*** @Author: PengShangXing* @Date: 2025/01/07/0007 15:13*/import javax.crypto.Cipher;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;
import java.util.Arrays;/*** @Author: PengShangXing* @Date: 2025/01/07/0007 15:13*/
public class NavicatPassword {private int version = 0;private final String aesKey = "libcckeylibcckey";private final String aesIv = "libcciv libcciv ";private final String blowString = "3DC5CA39";private byte[] blowKey;private byte[] blowIv;public NavicatPassword(int version) {this.version = version;this.blowKey = sha1("3DC5CA39");this.blowIv = hexToBytes("d9c7c3c8870d64bd");}public String encrypt(String string) throws Exception {String result = null;switch (this.version) {case 11:result = encryptEleven(string);break;case 12:result = encryptTwelve(string);break;default:break;}return result;}private String encryptEleven(String string) throws Exception {int round = string.length() / 8;int leftLength = string.length() % 8;StringBuilder result = new StringBuilder();byte[] currentVector = blowIv;for (int i = 0; i < round; i++) {byte[] temp = encryptBlock(xorBytes(string.substring(8 * i, 8 * (i + 1)).getBytes(), currentVector));currentVector = xorBytes(currentVector, temp);result.append(bytesToHex(temp));}if (leftLength > 0) {currentVector = encryptBlock(currentVector);result.append(bytesToHex(xorBytes(string.substring(8 * round).getBytes(), currentVector)));}return result.toString().toUpperCase();}private byte[] encryptBlock(byte[] block) throws Exception {Cipher cipher = Cipher.getInstance("Blowfish/ECB/NoPadding");SecretKeySpec keySpec = new SecretKeySpec(blowKey, "Blowfish");cipher.init(Cipher.ENCRYPT_MODE, keySpec);return cipher.doFinal(block);}private byte[] decryptBlock(byte[] block) throws Exception {Cipher cipher = Cipher.getInstance("Blowfish/ECB/NoPadding");SecretKeySpec keySpec = new SecretKeySpec(blowKey, "Blowfish");cipher.init(Cipher.DECRYPT_MODE, keySpec);return cipher.doFinal(block);}private String encryptTwelve(String string) throws Exception {Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");SecretKeySpec keySpec = new SecretKeySpec(aesKey.getBytes(), "AES");IvParameterSpec ivSpec = new IvParameterSpec(aesIv.getBytes());cipher.init(Cipher.ENCRYPT_MODE, keySpec, ivSpec);byte[] encrypted = cipher.doFinal(string.getBytes());return bytesToHex(encrypted).toUpperCase();}public String decrypt(String string) throws Exception {String result = null;switch (this.version) {case 11:result = decryptEleven(string);break;case 12:result = decryptTwelve(string);break;default:break;}return result;}private String decryptEleven(String upperString) throws Exception {byte[] string = hexToBytes(upperString.toLowerCase());int round = string.length / 8;int leftLength = string.length % 8;StringBuilder result = new StringBuilder();byte[] currentVector = blowIv;for (int i = 0; i < round; i++) {byte[] encryptedBlock = Arrays.copyOfRange(string, 8 * i, 8 * (i + 1));byte[] temp = xorBytes(decryptBlock(encryptedBlock), currentVector);currentVector = xorBytes(currentVector, encryptedBlock);result.append(new String(temp));}if (leftLength > 0) {currentVector = encryptBlock(currentVector);result.append(new String(xorBytes(Arrays.copyOfRange(string, 8 * round, string.length), currentVector)));}return result.toString();}private String decryptTwelve(String upperString) throws Exception {// 将十六进制字符串转换为字节数组byte[] string = hexToBytes(upperString.toLowerCase());// 初始化AES解密Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");SecretKeySpec keySpec = new SecretKeySpec(aesKey.getBytes("UTF-8"), "AES");IvParameterSpec ivSpec = new IvParameterSpec(aesIv.getBytes("UTF-8"));cipher.init(Cipher.DECRYPT_MODE, keySpec, ivSpec);// 解密并按照UTF-8编码返回字符串return new String(cipher.doFinal(string), "UTF-8");}private byte[] xorBytes(byte[] str1, byte[] str2) {byte[] result = new byte[str1.length];for (int i = 0; i < str1.length; i++) {result[i] = (byte) (str1[i] ^ str2[i]);}return result;}private byte[] sha1(String input) {try {java.security.MessageDigest digest = java.security.MessageDigest.getInstance("SHA-1");return digest.digest(input.getBytes());} catch (Exception e) {throw new RuntimeException(e);}}private byte[] hexToBytes(String hex) {int len = hex.length();byte[] data = new byte[len / 2];for (int i = 0; i < len; i += 2) {data[i / 2] = (byte) ((Character.digit(hex.charAt(i), 16) << 4)+ Character.digit(hex.charAt(i + 1), 16));}return data;}private String bytesToHex(byte[] bytes) {StringBuilder sb = new StringBuilder();for (byte b : bytes) {sb.append(String.format("%02x", b));}return sb.toString();}public static void main(String[] args) throws Exception {// Example usageNavicatPassword navicatPassword = new NavicatPassword(12);// DecryptString decode = navicatPassword.decrypt("xxxxx");System.out.println(decode);}}