Encrypt a string in Java for Android

encrypt-string.android.java

public static String encryptText(String text, String keyHex, String saltHex, String hmacHexKey) {
    String ivHex = generateIV();
    byte[] ivData = BCHelpers.hexStringToByteArray(ivHex);
    byte[] keyData = BCHelpers.hexStringToByteArray(keyHex);
    byte[] hmacKeyData = BCHelpers.hexStringToByteArray(hmacHexKey);
    IvParameterSpec iv = new IvParameterSpec(ivData);
    SecretKeySpec skeySpec = new SecretKeySpec(keyData, "AES");
    try {
        // AES encryption
        Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5PADDING");
        cipher.init(Cipher.ENCRYPT_MODE, skeySpec, iv);
        byte[] encrypted = cipher.doFinal(text.getBytes());
        byte[] encodedEncryptedText = Base64.encode(encrypted);
        String encryptedText = new String(encodedEncryptedText);
        // HMAC
        Mac sha256HMAC = Mac.getInstance("HmacSHA256");
        SecretKeySpec hmacSecretKey = new SecretKeySpec(hmacKeyData, "HmacSHA256");
        sha256HMAC.init(hmacSecretKey);
        String hmacTarget = encryptedText + ivHex + saltHex;
        byte[] hmacData = sha256HMAC.doFinal(hmacTarget.getBytes(StandardCharsets.UTF_8));
        String hmacHex = BCHelpers.byteArrayToHexString(hmacData);
        // Output
        return encryptedText + "|" + hmacHex + "|" + ivHex + "|" + saltHex;
    } catch (Exception ex) {
        return "Error:" + ex.getMessage();
    }
}