对比新文件 |
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| | | package com.flow.util; |
| | | |
| | | import java.security.SecureRandom; |
| | | import javax.crypto.Cipher; |
| | | import javax.crypto.SecretKey; |
| | | import javax.crypto.SecretKeyFactory; |
| | | import javax.crypto.spec.DESKeySpec; |
| | | import org.apache.commons.codec.binary.Base64; |
| | | |
| | | public class DESUtil { |
| | | public static final String KEY_ALGORITHM = "DES"; |
| | | public static final String CIPHER_ALGORITHM = "DESede/CBC/PKCS5Padding"; |
| | | public static String key = "FHGT4KHVJKVKV2KHCTBM"; |
| | | |
| | | public DESUtil() { |
| | | } |
| | | |
| | | private static SecretKey keyGenerator(String keyStr) throws Exception { |
| | | byte[] input = HexString2Bytes(keyStr); |
| | | DESKeySpec desKey = new DESKeySpec(input); |
| | | SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES"); |
| | | SecretKey securekey = keyFactory.generateSecret(desKey); |
| | | return securekey; |
| | | } |
| | | |
| | | private static int parse(char c) { |
| | | if (c >= 'a') { |
| | | return c - 97 + 10 & 15; |
| | | } else { |
| | | return c >= 'A' ? c - 65 + 10 & 15 : c - 48 & 15; |
| | | } |
| | | } |
| | | |
| | | public static byte[] HexString2Bytes(String hexstr) { |
| | | byte[] b = new byte[hexstr.length() / 2]; |
| | | int j = 0; |
| | | |
| | | for(int i = 0; i < b.length; ++i) { |
| | | char c0 = hexstr.charAt(j++); |
| | | char c1 = hexstr.charAt(j++); |
| | | b[i] = (byte)(parse(c0) << 4 | parse(c1)); |
| | | } |
| | | |
| | | return b; |
| | | } |
| | | |
| | | public static String encrypt(String data, String key) throws Exception { |
| | | SecureRandom sr = new SecureRandom(); |
| | | DESKeySpec dks = new DESKeySpec(key.getBytes()); |
| | | SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES"); |
| | | SecretKey securekey = keyFactory.generateSecret(dks); |
| | | Cipher cipher = Cipher.getInstance("DES"); |
| | | cipher.init(1, securekey, sr); |
| | | byte[] results = cipher.doFinal(data.getBytes()); |
| | | return Base64.encodeBase64String(results); |
| | | } |
| | | |
| | | public static String decrypt(String data, String key) throws Exception { |
| | | SecureRandom sr = new SecureRandom(); |
| | | DESKeySpec dks = new DESKeySpec(key.getBytes()); |
| | | SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES"); |
| | | SecretKey securekey = keyFactory.generateSecret(dks); |
| | | Cipher cipher = Cipher.getInstance("DES"); |
| | | cipher.init(2, securekey, sr); |
| | | return new String(cipher.doFinal(Base64.decodeBase64(data))); |
| | | } |
| | | |
| | | public static void main(String[] args) throws Exception { |
| | | String url = "jdbc:mysql://localhost:3306/hxzkflow?useUnicode=true&characterEncoding=UTF-8&useSSL=false&autoReconnect=true"; |
| | | String username = "15210640466"; |
| | | String password = "123456"; |
| | | System.out.println("url: " + url); |
| | | System.out.println("username: " + username); |
| | | System.out.println("password: " + password); |
| | | String e_url = encrypt(url, key); |
| | | String e_username = encrypt(username, key); |
| | | String e_password = encrypt(password, key); |
| | | System.out.println("鍔犲瘑鍚巙rl: " + e_url); |
| | | System.out.println("鍔犲瘑鍚巙sername: " + e_username); |
| | | System.out.println("鍔犲瘑鍚巔assword: " + e_password); |
| | | } |
| | | } |