Encrypt String Using AES Algorithm

Encrypt a String using AES algorithm.

Javadoc available at https://www.javatapas.com/docs/javatapas/string/EncryptString.html 


public static byte[] encryptString(String inStr) throws NoSuchAlgorithmException, InvalidKeyException, IllegalBlockSizeException, NoSuchPaddingException, BadPaddingException {

  KeyGenerator keyGenerator = KeyGenerator.getInstance("AES");
  keyGenerator.init(256);

  SecretKey secretKey = keyGenerator.generateKey();
  byte[] raw = secretKey.getEncoded();

  Cipher cipher = Cipher.getInstance("AES");
  cipher.init(Cipher.ENCRYPT_MODE, secretKey);

  byte[] encrypted = cipher.doFinal(inStr.getBytes());

  return encrypted;

}