PBEwithMD5andDES on windows phone 8 - windows-phone-8

I've tried different ways of encrypting a string with PBEwithMD5andDES, I implemented this with Bouncy Castle but its seems that is nor working since it returns a different string compared to the Java version, all params are the same (password, salt and iteration number)in both versions (C# and Java).
private IBufferedCipher makePbeCipherWithParam(
string algorithm,
bool forEncryption,
char[] password,
byte[] salt,
int iterationCount)
{
Asn1Encodable algParams = PbeUtilities.GenerateAlgorithmParameters(
algorithm, salt, iterationCount);
ICipherParameters cipherParams = PbeUtilities.GenerateCipherParameters(
algorithm, password, algParams);
IBufferedCipher cipher = (IBufferedCipher)PbeUtilities.CreateEngine(algorithm);
cipher.Init(forEncryption, cipherParams);
return cipher;
}
public string StringToPBEWithMD5AndDES(string rawString) {
char[] password = "APASSWORD".ToCharArray();
byte[] salt = { .... };
IBufferedCipher cEnc = makePbeCipherWithParam(
"PBEwithMD5andDES-CBC",
true,
password,
salt,
1024);
byte[] encBytes = cEnc.DoFinal(Hex.Decode(rawString));
string encodedUser = Encoding.UTF8.GetString(encBytes, 0, encBytes.Length);//encBytes.ToString();
Debug.WriteLine("Encoded user from StringToPBEWithMD5AndDES: " + encodedUser);
return encodedUser;
}
this is the java version I'm trying to replicate
public class Utils {
private Cipher ecipher;
public Utils() {
String passPhrase = "PASSWORD";
byte[] salt = { ...};
int iterationCount = 1024;
try {
KeySpec keySpec = new PBEKeySpec(passPhrase.toCharArray(), salt,iterationCount);
SecretKey key = SecretKeyFactory.getInstance("PBEWithMD5AndDES").generateSecret(keySpec);
ecipher = Cipher.getInstance(key.getAlgorithm());
dcipher = Cipher.getInstance(key.getAlgorithm());
AlgorithmParameterSpec paramSpec = new PBEParameterSpec(salt, iterationCount);
ecipher.init(Cipher.ENCRYPT_MODE, key, paramSpec);
dcipher.init(Cipher.DECRYPT_MODE, key, paramSpec);
} catch (InvalidAlgorithmParameterException e) {
System.out.println("EXCEPTION: InvalidAlgorithmParameterException");
} catch (InvalidKeySpecException e) {
System.out.println("EXCEPTION: InvalidKeySpecException");
} catch (NoSuchPaddingException e) {
System.out.println("EXCEPTION: NoSuchPaddingException");
} catch (NoSuchAlgorithmException e) {
System.out.println("EXCEPTION: NoSuchAlgorithmException");
} catch (InvalidKeyException e) {
System.out.println("EXCEPTION: InvalidKeyException");
}
}
public String encrypt(String str) {
try {
byte[] utf8 = str.getBytes("UTF-8");
byte[] enc = ecipher.doFinal(utf8);
return new String(Base64.encodeBase64(enc), "UTF-8");
} catch (BadPaddingException e) {
} catch (IllegalBlockSizeException e) {
} catch (UnsupportedEncodingException e) {
} catch (Exception e) {
}
return null;
}
}

Related

Java/Android: Backslashes in JSON in Double Quotation places

I try to send "POST" request to serwer. Request includes JSON. Server returns "ok" or my JSON (in value of "message" key), if data in not correct. And I get strange backslashes ( \ sing) in my JSON, sent to server.
I get JSON response:
{"message":{"{\"phone_number\":\"_380661111111\",\"password\":\"112233aa\",\"military_id\":\"12345\",\"email\":\"won#mail_ru\"}":""}}
Normal JSON:
{"phone_number":"380666320670","password":"112233aa","military_id":"12345","email":"wovilon#mail.ru"}
Full code:
class SendLoginData extends AsyncTask<Void, Void, Void> {
String[] key,value;
String mResultString;
SendLoginData(String[] inKey, String[] inValue ){
this.key=new String[inKey.length];
this.value=new String[inValue.length];
this.key=inKey;
this.value=inValue;
}
String resultString = null;
#Override
protected void onPreExecute() {
super.onPreExecute();
}
#Override
protected Void doInBackground(Void... params) {
try {// http://oasushqg.beget.tech/users
String myURL = "http://y937220i.bget.ru/users";
byte[] data = null;
InputStream is = null;
try {
URL url = new URL(myURL);
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setRequestMethod("POST");
conn.setDoOutput(true);
conn.setDoInput(true);
OutputStream os = conn.getOutputStream();
//Create JSONObject here
JSONObject jsonParam = new JSONObject();
for (int i=0; i<this.key.length; i++) {
jsonParam.put(this.key[i], this.value[i]);
}
data=jsonParam.toString().getBytes("UTF-8");
os.write(data);
Log.d("MyLOG", "data is next: "+new String(data, "UTF-8"));
data = null;
conn.connect();
int responseCode= conn.getResponseCode();
ByteArrayOutputStream baos = new ByteArrayOutputStream();
if (responseCode == 200) {
is = conn.getInputStream();
byte[] buffer = new byte[8192]; // Такого вот размера буфер
// Далее, например, вот так читаем ответ
int bytesRead;
while ((bytesRead = is.read(buffer)) != -1) {
baos.write(buffer, 0, bytesRead);
}
data = baos.toByteArray();
resultString = new String(data, "UTF-8");
JSONObject jsonObj=new JSONObject(resultString);
mResultString=jsonObj.getString("message");
} else {
}
} catch (MalformedURLException e) {
} catch (IOException e) {
} catch (Exception e) {
}
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
#Override
protected void onPostExecute(Void result) {
super.onPostExecute(result);
if(resultString != null) {
Log.d("MyLOG", "postExecute run");
Log.d("MyLOG", mResultString);
}
}}

Converting finalBufferData into img url to display

I am trying to extract several images url constructed from parts of a JSON to be displayed.
I was able to retrieve the JSON and then construct several url from the JSON displaying it as a text on the screen ( String ).
at the end of the AsyncTask i used the Universal Image Loader, to display a single pic, in case the JSON contain information of a single pic, but the problem is whnen construct several url from the JSON :
finalBufferData.append("http://res.cloudinary.com/CLOUD_NAME/" + fileType +
"/upload/v" + version + "/" + publicID + "." + format + "/n");
it create a string of address just in separate lines ( if displayed in a textView), but bening passed to UIL it is not acceptable.
So i am not sure how to do this, since i am trying to have an image view within a listView in a linearway or differently maybe, to display several images, depending on the JSON information .
Any suggestion on how to do this will be great .
My AsyncTask code it;
public class JsonTask extends AsyncTask<String, String, String> {
#Override
protected String doInBackground(String... params) {
HttpURLConnection connection = null;
BufferedReader reader = null;
try {
URL url = new URL(params[0]);
connection = (HttpURLConnection) url.openConnection();
connection.connect();
InputStream stream = connection.getInputStream();
reader = new BufferedReader(new InputStreamReader(stream));
StringBuffer buffer = new StringBuffer();
String line = "";
while ((line = reader.readLine()) != null) {
buffer.append(line);
}
String finalJson = buffer.toString();
JSONObject parentObject = new JSONObject(finalJson);
JSONArray parentArray = parentObject.getJSONArray("resources");
StringBuffer finalBufferData = new StringBuffer();
for(int i=0; i<parentArray.length(); i++) {
JSONObject finalObject = parentArray.getJSONObject(i);
String publicID = finalObject.getString("public_id");
String version = finalObject.getString("version");
String format = finalObject.getString("format");
finalBufferData.append("http://res.cloudinary.com/CLOUD_NAME/" + fileType +
"/upload/v" + version + "/" + publicID + "." + format);
}
return finalBufferData.toString();
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (JSONException e) {
e.printStackTrace();
} finally {
if (connection != null) {
connection.disconnect();
}
try {
if (reader != null) {
reader.close();
}
} catch (IOException e) {
e.printStackTrace();
}
}
return null;
}
#Override
protected void onPostExecute(String result) {
super.onPostExecute(result);
ImageLoader.getInstance().displayImage(result, imageViewDisplayUp);
//imagesList.setText(result);
}
}
}
found a way around it, by adding another String which is not in the JSON but get created from other JASON strings.
Since the public_id, version, and format are in the JSON downloaded from Cloudinary and needed to build the right address for the images to be passed into the ImageLoader, and i couldnt not find another way to retrieve a list of images urls uploaded by the user with a specific tag to Cloudinary, without using the admin api which require writing api_secret in the program, i ended up doing the following;
public class JsonTask extends AsyncTask<String, String, List<upImgModels> > {
#Override
protected List<upImgModels> doInBackground(String... params) {
HttpURLConnection connection = null;
BufferedReader reader = null;
try {
URL url = new URL(params[0]);
connection = (HttpURLConnection) url.openConnection();
connection.connect();
InputStream stream = connection.getInputStream();
reader = new BufferedReader(new InputStreamReader(stream));
StringBuffer buffer = new StringBuffer();
String line = "";
while ((line = reader.readLine()) != null) {
buffer.append(line);
}
String finalJson = buffer.toString();
JSONObject parentObject = new JSONObject(finalJson);
JSONArray parentArray = parentObject.getJSONArray("resources");
List<upImgModels> upImgList = new ArrayList<>();
for(int i=0; i<parentArray.length(); i++) {
JSONObject finalObject = parentArray.getJSONObject(i);
upImgModels upImgModels = new upImgModels();
upImgModels.setPublic_id(finalObject.getString("public_id"));
upImgModels.setVersion(finalObject.getString("version"));
upImgModels.setFormat(finalObject.getString("format"));
upImgModels.setAddress("http://res.cloudinary.com/we4x4/" + fileType
+ "/upload/v" + finalObject.getString("version") + "/"
+ finalObject.getString("public_id") + "." +
finalObject.getString("format"));
upImgList.add(upImgModels);
}
return upImgList;
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (JSONException e) {
e.printStackTrace();
} finally {
if (connection != null) {
connection.disconnect();
}
try {
if (reader != null) {
reader.close();
}
} catch (IOException e) {
e.printStackTrace();
}
}
return null;
}
#Override
protected void onPostExecute(List<upImgModels> result) {
super.onPostExecute(result);
upImgAdapter adapter = new upImgAdapter(getApplicationContext(), R.layout.row, result);
listViewUpload.setAdapter(adapter);
//imagesList.setText(result);
}
}
public class upImgAdapter extends ArrayAdapter{
public List<upImgModels> upImgModelsList;
private int resource;
private LayoutInflater inflater;
public upImgAdapter(Context context, int resource, List<upImgModels> objects) {
super(context, resource, objects);
upImgModelsList = objects;
this.resource = resource;
inflater = (LayoutInflater) getSystemService(LAYOUT_INFLATER_SERVICE);
}
#Override
public View getView(int position, View convertView, ViewGroup parent){
if(convertView == null){
convertView = inflater.inflate(R.layout.row, null);
}
ImageView imageViewDisplay;
imageViewDisplay = (ImageView)convertView.findViewById(R.id.imageViewDisplay);
ImageLoader.getInstance().displayImage(upImgModelsList.get(position).getAddress(), imageViewDisplay);
return convertView;
}
}
}
I hope someone could suggest a better way to do this if it is possible, which i am sure that is the case.

Json parsing Using Volley does not get cahced

I Parse json using volley framework, which every time gets response from the server, does not check the cache, It has taken a whole day, Here is my code. Any of you have used volley for parsing json are expected to help
Cache cache = AppController.getInstance().getRequestQueue().getCache();
Entry entry = cache.get(diag_url);
if(entry != null){
try {
String data = new String(entry.data, "UTF-8");
// handle data, like converting it to xml, json, bitmap etc.,
// Parsing json
JSONArray jsonArray = new JSONArray(data);
for (int i = 0; i < jsonArray.length(); i++) {
try {
DiagRegPojo test = new DiagRegPojo();
JSONObject obj = jsonArray.getJSONObject(i);
String testName = obj.getString("content");
Log.d("Response From Cache", testName);
test.setTitle(testName);
// adding movie to movies array
testList.add(test);
} catch (JSONException e) {
e.printStackTrace();
}
}
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
} catch (JSONException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
}else{
// Creating volley request obj
JsonArrayRequest testReq = new JsonArrayRequest(diag_url,
new Response.Listener<JSONArray>() {
#Override
public void onResponse(JSONArray response) {
Log.d(TAG, response.toString());
hidePDialog();
// Parsing json
for (int i = 0; i < response.length(); i++) {
try {
JSONObject obj = response.getJSONObject(i);
DiagRegPojo test = new DiagRegPojo();
test.setTitle(obj.getString("content"));
Log.d("Response From Server", obj.getString("content"));
// adding movie to movies array
testList.add(test);
} catch (JSONException e) {
e.printStackTrace();
}
}
// notifying list adapter about data changes
// so that it renders the list view with updated data
mAdapter.notifyDataSetChanged();
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
VolleyLog.d(TAG, "Error: " + error.getMessage());
hidePDialog();
}
})
{
//**
// Passing some request headers
//*
#Override
public Map<String, String> getHeaders() throws AuthFailureError {
HashMap<String, String> headers = new HashMap<String, String>();
headers.put("Cookie", MainActivity.sharedpreferences.getString(savedCookie, ""));
headers.put("Set-Cookie", MainActivity.sharedpreferences.getString(savedCookie, ""));
headers.put("Content-Type", "application/x-www-form-urlencoded");
//headers.put("Content-Type","application/json");
headers.put("Accept", "application/x-www-form-urlencoded");
return headers;
}
};
// Adding request to request queue
AppController.getInstance().addToRequestQueue(testReq);
}
}
To cache images, I have used this. sure it can be of some help to you.
public ImageLoader getImageLoader() {
getRequestQueue();
if (mImageLoader == null) {
mImageLoader = new ImageLoader(this.mRequestQueue,
new LruBitmapCache());
}
return this.mImageLoader;
}
.
public class LruBitmapCache extends LruCache<String, Bitmap> implements
ImageCache {
public static int getDefaultLruCacheSize() {
final int maxMemory = (int) (Runtime.getRuntime().maxMemory() / 1024);
final int cacheSize = maxMemory / 8;
return cacheSize;
}
public LruBitmapCache() {
this(getDefaultLruCacheSize());
}
public LruBitmapCache(int sizeInKiloBytes) {
super(sizeInKiloBytes);
}
#Override
protected int sizeOf(String key, Bitmap value) {
return value.getRowBytes() * value.getHeight() / 1024;
}
#Override
public Bitmap getBitmap(String url) {
return get(url);
}
#Override
public void putBitmap(String url, Bitmap bitmap) {
put(url, bitmap);
}
}

Future get() gets nullpointer exeception in java

I'm implementing a function that detects if there is a webcam. This piece of code works fine in windows and I had no problem with it in linux centos OS. Now I'm trying to run the same code in Ubuntu, here an exception is thrown.
Exception in thread "main" java.lang.NullPointerException
at CameraProperties.CheckForCameraPlugin.check(CheckForCameraPlugin.java:51)
at Main.Main.main(Main.java:39)
The code is given below.
public boolean check()
{
boolean b = true;
service = Executors.newFixedThreadPool(1);
task = service.submit(new InitialCameraChecker());
try
{
final String str;
// waits the 10 seconds for the Callable.call to finish.
str = task.get();
if (str.matches("nodevice"))
{
b = false;//Return false if no camera device found
}
else
{
b = true;
}
}
catch (InterruptedException | ExecutionException ex)
{
msgbox.showJoptionPane(15);
}
service.shutdownNow();
return b;
}
The callable class is given below
class InitialCameraChecker implements Callable<String>
{
private List<Integer> devices = new ArrayList<Integer>();
private final static String VERSION_ID = "1.0.0";
private String res;
//Checking for the Camera
public String call()
{
try
{
loadWebcam();
discoverDevices();
if (devices.isEmpty())
{
res = "nodevice";//No we cam device found
}
else
{
res = "founddevice";//Found Web Cam Device
}
}
catch (Exception ex)
{
System.out.println("Exception_logout" + ex.toString());
}
return res;
}
//Discovering the camera device
private void discoverDevices()
{
for (int i = 0; i < 10; i++)
{
CvCapture cap = null;
try
{
cap = cvCreateCameraCapture(i);
int res = cvGrabFrame(cap);
if (res > 0)
{
devices.add(i);
break;
}
}
catch (Exception e)
{
System.out.println("Exception in camaracheck Thread1");
}
finally
{
if (cap != null)
{
try
{
cvReleaseCapture(cap.pointerByReference());
}
catch (Exception e)
{
e.printStackTrace();
}
}
}
}
}
//Loading the dlls for starting the camera
private void loadWebcam()
{
String tmpDir = System.getProperty("java.io.tmpdir");
File faPath = new File(tmpDir + File.separator + "WebcamApplet_" + VERSION_ID.replaceAll("\\.", "-"));
System.setProperty("jna.library.path", faPath.getAbsolutePath());
}
}
Please tell me what is the problem. This works fine in windows.

Blackberry how to get Json Response (java)

I want to get a JSON response on the simulator. How can I read JSON from the server?
public void run()
{
HttpConnection httpConn;
ConnectionFactory connFact = new ConnectionFactory();
ConnectionDescriptor connDesc;
connDesc = connFact.getConnection("http://example.com/login.php");
if (connDesc != null)
{
try {
httpConn = (HttpConnection)connDesc.getConnection();
final int iResponseCode = httpConn.getResponseCode();
Dialog.alert("Type: "+httpConn.getType());
UiApplication.getUiApplication().invokeLater(new Runnable()
{
public void run()
{
Dialog.alert("Response code: " + Integer.toString(iResponseCode));
}
});
}
catch (IOException e)
{
System.err.println("Caught IOException: " + e.getMessage());
}
}
}
HttpConnection connection = (HttpConnection)Connector.open(urlConection);
InputStream inputStream = connection.openInputStream();
if(connection.getResponseCode() == HttpConnection.HTTP_OK){
InputStreamReader reader = new InputStreamReader(inputStream, "UTF-8");
int readCharacter;
StringBuffer responseBuffer = new StringBuffer();
while ((readCharacter = reader.read()) != -1) {
responseBuffer.append((char) readCharacter);
connection.close();
inputStream.close();
reader.close();
String responseMessage = new String(responseBuffer);
}
}
You need to create JSONObject for the response.
try {
JSONObject object = new JSONObject(responseMessage);
} catch (JSONException e) {
e.printStackTrace();
}