I have tried adding getbytes("UTF") or getbytes("UTF-8"), since it was suggested in a similar question. It said we need to try UTF while converting bytes to string and vice a versa. But still it is not working for my code...please help
public class Password1 {
private static final String ALGO = "AES";
private static byte[] keyValue = new byte[]{'t','h','y','u','e','f','z','s','y','k','f','l','d','a','b','m'};
public static void main(String[] args) {
//Password1 p = new Password1();
Scanner sc = new Scanner(System.in);
String i = sc.nextLine();
System.out.println("Password = "+i);
try {
String en = encrypt(i);
System.out.println(en);
String dec = decrypt(en);
System.out.println("Encrypted = " + en);
System.out.println("Decrypted = " + dec);
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public static String encrypt(String Data) throws Exception {
Key key = generateKey();
Cipher c = Cipher.getInstance(ALGO);
c.init(Cipher.ENCRYPT_MODE, key);
byte[] encVal = c.doFinal(Data.getBytes("UTF-8"));
String encrypted = new BASE64Encoder().encode(encVal);
return encrypted;
}
public static String decrypt(String encrypted) throws Exception {
Key key = generateKey();
Cipher c = Cipher.getInstance(ALGO);
c.init(Cipher.DECRYPT_MODE, key);
//Byte bencrypted = Byte.valueOf(encrypted);
byte[] decoded = new BASE64Decoder().decodeBuffer(encrypted);
byte[] decValue = c.doFinal(decoded);
String decrypted = new String(decValue);
return decrypted;
}
private static Key generateKey() throws Exception {
MessageDigest sha = MessageDigest.getInstance("SHA-1");
keyValue = sha.digest(keyValue);
keyValue = Arrays.copyOf(keyValue, 16);
SecretKeySpec key = new SecretKeySpec(keyValue, ALGO);
return key;
}
}
