Java處理url加解密

1. MessageDigest md = MessageDigest.getInstance("MD5");
2. byte[] byteKeyMd5 = md.digest(encryptKey.getBytes());
4. byte[] byteKey = new byte[24];
5. System.arraycopy(byteKeyMd5, 0, byteKey, 0, 16);
6. System.arraycopy(byteKeyMd5, 0, byteKey, 16, 8);
8. Key deskey = null;
9. DESedeKeySpec spec = new DESedeKeySpec(byteKey);
10. SecretKeyFactory keyfactory = SecretKeyFactory.getInstance("desede");
11. deskey = keyfactory.generateSecret(spec);
12. Cipher cipher = Cipher.getInstance("DESede/ECB/PKCS5Padding");
13. cipher.init(Cipher.ENCRYPT_MODE, deskey);
14. byte[] encryptedBytes = cipher.doFinal(source.getBytes("UTF-8"));
16. BASE64Encoder encoder = new BASE64Encoder();
17. encryptedString = encoder.encode(encryptedBytes);

MessageDigest md = MessageDigest.getInstance("MD5");
byte[] byteKeyMd5 = md.digest(encryptKey.getBytes());

byte[] byteKey = new byte[24];
System.arraycopy(byteKeyMd5, 0, byteKey, 0, 16); 
System.arraycopy(byteKeyMd5, 0, byteKey, 16, 8); 

Key deskey = null;
DESedeKeySpec spec = new DESedeKeySpec(byteKey);
SecretKeyFactory keyfactory = SecretKeyFactory.getInstance("desede");
deskey = keyfactory.generateSecret(spec);
Cipher cipher = Cipher.getInstance("DESede/ECB/PKCS5Padding");
cipher.init(Cipher.ENCRYPT_MODE, deskey);
byte[] encryptedBytes = cipher.doFinal(source.getBytes("UTF-8"));

BASE64Encoder encoder = new BASE64Encoder();
encryptedString = encoder.encode(encryptedBytes);

1. byte[] decodedBytes;
2. BASE64Decoder decoder = new BASE64Decoder();
3. decodedBytes = decoder.decodeBuffer(cipherText);
5. MessageDigest md = MessageDigest.getInstance("MD5");
6. byte[] byteKeyMd5 = md.digest(decryptKey.getBytes());
8. byte[] byteKey = new byte[24];
9. System.arraycopy(byteKeyMd5, 0, byteKey, 0, 16);
10. System.arraycopy(byteKeyMd5, 0, byteKey, 16, 8);
12. Key deskey = null;
13. DESedeKeySpec spec = new DESedeKeySpec(byteKey);
14. SecretKeyFactory keyfactory = SecretKeyFactory.getInstance("desede");
15. deskey = keyfactory.generateSecret(spec);
16. Cipher cipher = Cipher.getInstance("DESede/ECB/PKCS5Padding");
17. cipher.init(Cipher.DECRYPT_MODE, deskey);
19. byte[] plainTextBytes = cipher.doFinal(decodedBytes);
20. plainText = new String(plainTextBytes);