AESCBCNopading Java

import javax.crypto.Cipher;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;
import static tivitop2.Lai.hexArray;


public class AESCBCNopading {
    public static final String KEY = "d7f8g9hk0dj2s712";
    public static final String IV = "f7h9a5d0gkvi7v6v";

    public static void main(String[] args) throws Exception {
        // d74fb44c840ebe083d59908e836a2e5c7d9963ec24c5df8ac3b9713e43e75dc92ebb0fd9e3ad9d9249d8395178debd9853c94c8ac573665925cfbab4c55d7efb7aa68725eea10fb4b85a3cc31e51704c
        // http://hlscache.fptplay.net.vn/livez/vtv1_500.stream/playlist.m3u8

        // f37249baa85d917abaf0a3a6552ec1812876f8f97a89a05f26aad35a4970df85
        // http://222.255.27.92/vtv1.m3u8

        String dataMaHoa = "http://tivi.crackgame.net/youtubefaker/Hai-co-tien-365.mp4      ";
        System.out.println("dataMaHoa:" + dataMaHoa.length());
        String dataGiaiMa = "7bffbdb21c836b1f1a3d3f697ba37d679647c47b0c6a538ef3a484bc63c68e999747105fb472b88f46557065afe57a4f0ceb11605de772bc462d644bda331430";
               String mao = "7bffbdb21c836b1f1a3d3f697ba37d679647c47bc6a538ef3a484bc63c68e999747105fb472b88f46557065afe57a4fceb11605de772bc462d644bda331430";
        System.out.println("Ma hoa: " + encrypt(dataMaHoa, KEY, IV));
        System.out.println("Giai ma: " + desEncrypt(dataGiaiMa, KEY, IV) + "mao");
        String tinh = "7bffbdb21c836b1f1a3d3f697ba37d679647c47b";
        System.out.println(tinh.length());
    }

    public static String encrypt(String data, String key, String iv) throws Exception {
        try {
//            String data = "Test String";
//            String key = "1234567812345678";
//            String iv = "1234567812345678";
            Cipher cipher = Cipher.getInstance("AES/CBC/NoPadding");
            int blockSize = cipher.getBlockSize();
            byte[] dataBytes = data.getBytes();
            int plaintextLength = dataBytes.length;
            if (plaintextLength % blockSize != 0) {
                plaintextLength = plaintextLength + (blockSize - (plaintextLength % blockSize));
            }
            byte[] plaintext = new byte[plaintextLength];
            System.arraycopy(dataBytes, 0, plaintext, 0, dataBytes.length);

            SecretKeySpec keyspec = new SecretKeySpec(key.getBytes(), "AES");
            IvParameterSpec ivspec = new IvParameterSpec(iv.getBytes());
            cipher.init(Cipher.ENCRYPT_MODE, keyspec, ivspec);
            byte[] encrypted = cipher.doFinal(plaintext);
            return bytesToHex(encrypted);
                    //new sun.misc.BASE64Encoder().encode(encrypted);
        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }
    }
    public static String desEncrypt(String data, String key, String iv) throws Exception {
        try
        {
//            String data = "2fbwW9+8vPId2/foafZq6Q==";
//            String key = "1234567812345678";
//            String iv = "1234567812345678";

            byte[] encrypted1 = hexToBytes(data);
                    //new sun.misc.BASE64Decoder().decodeBuffer(data);

            Cipher cipher = Cipher.getInstance("AES/CBC/NoPadding");
            SecretKeySpec keyspec = new SecretKeySpec(key.getBytes(), "AES");
            IvParameterSpec ivspec = new IvParameterSpec(iv.getBytes());

            cipher.init(Cipher.DECRYPT_MODE, keyspec, ivspec);
            byte[] original = cipher.doFinal(encrypted1);
            String originalString = new String(original);
            return originalString;
        }
        catch (Exception e) {
            e.printStackTrace();
            return null;
        }
    }

    public static String bytesToHex(byte[] bytes) {
        char[] hexChars = new char[bytes.length * 2];
        for (int j = 0; j < bytes.length; j++) {
            int v = bytes[j] & 0xFF;
            hexChars[j * 2] = hexArray[v >>> 4];
            hexChars[j * 2 + 1] = hexArray[v & 0x0F];
        }
        return new String(hexChars);
    }

    private static byte[] hexToBytes(String hex) {
        String HEXINDEX = "0123456789abcdef";
        int l = hex.length() / 2;
        byte data[] = new byte[l];
        int j = 0;

        for (int i = 0; i < l; i++) {
            char c = hex.charAt(j++);
            int n, b;

            n = HEXINDEX.indexOf(c);
            b = (n & 0xf) << 4;
            c = hex.charAt(j++);
            n = HEXINDEX.indexOf(c);
            b += (n & 0xf);
            data[i] = (byte) b;
        }

        return data;
    }
}