version 4.5.4

@@ -2,7 +2,7 @@ apply plugin: 'com.android.library'
 
 ext {
     PUBLISH_GROUP_ID = 'ly.warp'
-    PUBLISH_VERSION = '4.5.3.1'
+    PUBLISH_VERSION = '4.5.4'
     PUBLISH_ARTIFACT_ID = 'warply-android-sdk'
 }
 
@@ -37,7 +37,7 @@ dependencies {
     api 'androidx.appcompat:appcompat:1.4.1'
     api 'androidx.recyclerview:recyclerview:1.2.1'
     api 'androidx.cardview:cardview:1.0.0'
-
+    api "androidx.security:security-crypto:1.1.0-alpha03" // For minSDK 23 use 1.0.0, for minSDK 21 use 1.1.0 that is currently in alpha
     api 'org.altbeacon:android-beacon-library:2.19.3'
     api 'org.jbundle.util.osgi.wrapped:org.jbundle.util.osgi.wrapped.org.apache.http.client:4.1.2'
     api "commons-logging:commons-logging:1.2"

+package ly.warp.sdk.utils;
+
+import android.app.Application;
+import android.content.Context;
+import android.content.SharedPreferences;
+import android.preference.PreferenceManager;
+
+import androidx.security.crypto.EncryptedSharedPreferences;
+import androidx.security.crypto.MasterKey;
+
+import java.io.IOException;
+import java.lang.ref.WeakReference;
+import java.security.GeneralSecurityException;
+
+/**
+ * Created by Panagiotis Triantafyllou on 21-Nov-18.
+ */
+
+public class PrefsUtils {
+
+    // ===========================================================
+    // Constants
+    // ===========================================================
+    private static final String FILE_SECURE_SHARED_PREFS = "com.gr.gapp.obfuscatepreferences";
+    private static final String KEY_ACC_TOKEN = "key_acc_token";
+    private static final String KEY_REF_TOKEN = "key_ref_token";
+    private static final String KEY_CL_SECRET = "key_cl_secret";
+    private static final String KEY_CID = "key_cid";
+
+    // ===========================================================
+    // Fields
+    // ===========================================================
+
+    private static WeakReference<Application> sContext;
+    private static SharedPreferences mSecurePref;
+
+    // ===========================================================
+    // Methods
+    // ===========================================================
+
+    public static void initialize(Application application) {
+        sContext = new WeakReference<>(application);
+    }
+
+    private static SharedPreferences getPrefs() {
+        return PreferenceManager.getDefaultSharedPreferences(sContext.get());
+    }
+
+    private static SharedPreferences getPrefs(Context context) {
+        try {
+            MasterKey masterKey = new
+                    MasterKey.Builder(context, MasterKey.DEFAULT_MASTER_KEY_ALIAS).
+                    setKeyScheme(MasterKey.KeyScheme.AES256_GCM).build();
+
+            SharedPreferences encryptedSharedPreferences = EncryptedSharedPreferences.create(
+                    context,
+                    context.getPackageName() + "_preferences",
+                    masterKey,
+                    EncryptedSharedPreferences.PrefKeyEncryptionScheme.AES256_SIV,
+                    EncryptedSharedPreferences.PrefValueEncryptionScheme.AES256_GCM
+            );
+
+            return encryptedSharedPreferences;
+        } catch (GeneralSecurityException | IOException e) {
+            WarpUtils.log("PrefUtils Get Encrypted Shared Preferences Error", e);
+            return PreferenceManager.getDefaultSharedPreferences(context);
+        }
+    }
+
+    // ===========================================================
+    // Getter & Setter
+    // ===========================================================
+
+    /**
+     * Removes all user preferences.
+     */
+    public static void clearPrefs() {
+        getPrefs().edit().clear().apply();
+    }
+
+    public static String getAccToken(Context context) {
+        return getPrefs(context).getString(KEY_ACC_TOKEN, "");
+    }
+
+    public static void setAccToken(Context context, String at) {
+        getPrefs(context).edit().putString(KEY_ACC_TOKEN, at).apply();
+    }
+
+    public static String getRefToken(Context context) {
+        return getPrefs(context).getString(KEY_REF_TOKEN, "");
+    }
+
+    public static void setRefToken(Context context, String rt) {
+        getPrefs(context).edit().putString(KEY_REF_TOKEN, rt).apply();
+    }
+
+    public static String getClSecret(Context context) {
+        return getPrefs(context).getString(KEY_CL_SECRET, "");
+    }
+
+    public static void setClSecret(Context context, String cs) {
+        getPrefs(context).edit().putString(KEY_CL_SECRET, cs).apply();
+    }
+
+    public static String getCid(Context context) {
+        return getPrefs(context).getString(KEY_CID, "");
+    }
+
+    public static void setCid(Context context, String cid) {
+        getPrefs(context).edit().putString(KEY_CID, cid).apply();
+    }
+}

@@ -49,6 +49,9 @@ import android.view.View;
 import android.view.animation.Animation;
 import android.view.animation.ScaleAnimation;
 
+import androidx.security.crypto.EncryptedSharedPreferences;
+import androidx.security.crypto.MasterKey;
+
 import org.apache.http.client.HttpClient;
 import org.apache.http.client.methods.HttpRequestBase;
 import org.apache.http.params.HttpProtocolParams;
@@ -59,6 +62,7 @@ import java.io.IOException;
 import java.io.InputStream;
 import java.io.InputStreamReader;
 import java.nio.charset.Charset;
+import java.security.GeneralSecurityException;
 import java.security.MessageDigest;
 import java.security.NoSuchAlgorithmException;
 import java.util.zip.GZIPInputStream;
@@ -190,11 +194,26 @@ public class WarpUtils {
     }
 
     private static SharedPreferences getPreferences(Context context) {
-
         if (_prefs == null) {
-
-            _prefs = context.getSharedPreferences(PREFERENCES_NAME,
-                    Context.MODE_PRIVATE);
+            try {
+                MasterKey masterKey = new
+                        MasterKey.Builder(context, MasterKey.DEFAULT_MASTER_KEY_ALIAS).
+                        setKeyScheme(MasterKey.KeyScheme.AES256_GCM).build();
+
+                SharedPreferences encryptedSharedPreferences = EncryptedSharedPreferences.create(
+                        context,
+                        PREFERENCES_NAME,
+                        masterKey,
+                        EncryptedSharedPreferences.PrefKeyEncryptionScheme.AES256_SIV,
+                        EncryptedSharedPreferences.PrefValueEncryptionScheme.AES256_GCM
+                );
+
+                _prefs = encryptedSharedPreferences;
+            } catch (GeneralSecurityException | IOException e) {
+                WarpUtils.log("WarpUtils Get Encrypted Shared Preferences Error", e);
+                _prefs = context.getSharedPreferences(PREFERENCES_NAME,
+                        Context.MODE_PRIVATE);
+            }
         }
 
         return _prefs;

@@ -5,10 +5,15 @@ import android.content.Context;
 import android.content.SharedPreferences;
 import android.text.TextUtils;
 
+import androidx.security.crypto.EncryptedSharedPreferences;
+import androidx.security.crypto.MasterKey;
+
 import org.json.JSONArray;
 import org.json.JSONException;
 import org.json.JSONObject;
 
+import java.io.IOException;
+import java.security.GeneralSecurityException;
 import java.util.Map;
 import java.util.Set;
 
@@ -20,8 +25,25 @@ public class WarplyPreferences {
     private SharedPreferences warplySharedPrefs;
 
     public WarplyPreferences(Context context) {
-        this.warplySharedPrefs = context.
-                getSharedPreferences(WARPLY_SHARED_PREFS, Activity.MODE_PRIVATE);
+        try {
+            MasterKey masterKey = new
+                    MasterKey.Builder(context, MasterKey.DEFAULT_MASTER_KEY_ALIAS).
+                    setKeyScheme(MasterKey.KeyScheme.AES256_GCM).build();
+
+            SharedPreferences encryptedSharedPreferences = EncryptedSharedPreferences.create(
+                    context,
+                    WARPLY_SHARED_PREFS,
+                    masterKey,
+                    EncryptedSharedPreferences.PrefKeyEncryptionScheme.AES256_SIV,
+                    EncryptedSharedPreferences.PrefValueEncryptionScheme.AES256_GCM
+            );
+
+            this.warplySharedPrefs = encryptedSharedPreferences;
+        } catch (GeneralSecurityException | IOException e) {
+            WarpUtils.log("WarplyPreferences Encrypted Shared Preferences Error", e);
+            this.warplySharedPrefs = context.
+                    getSharedPreferences(WARPLY_SHARED_PREFS, Activity.MODE_PRIVATE);
+        }
     }
 
     public void saveLocationChangedReceiverStatus(String status) {
@@ -48,7 +70,8 @@ public class WarplyPreferences {
     public String getAppStatus() {
         return warplySharedPrefs.getString("appStatus", "background");
     }
-    public boolean isForeground(){
+
+    public boolean isForeground() {
         return !getAppStatus().equals("background");
     }
 

@@ -30,7 +30,7 @@ public class WarpConstants {
     /**
      * The version of the SDK installed in the device
      */
-    public static final String SDK_VERSION = "4.5.3";
+    public static final String SDK_VERSION = "4.5.4";
 
     /**
      * The URL of the server where it should ping