From c4f9c1a335c054c4d74d0701953b48983fdcaa4a Mon Sep 17 00:00:00 2001
From: Ben Abraham <ben.d.abraham@gmail.com>
Date: Tue, 6 Apr 2021 02:28:00 -0400
Subject: [PATCH 01/10] Added IPFS gateway option in the settings menu. Added 7
 preset IPFS gateways. 2x Cloudflare, 2x ipfs.io, dweb, GreyH.at, and Infura
 Added 'ipfsGateway' setting to BRSharedPrefs. Added helper function in Utils
 class for creating an ipfs url from the hash.

---
 app/src/main/AndroidManifest.xml              |   5 +
 .../settings/IPFSGatewayActivity.java         | 197 ++++++++++++++++++
 .../activities/settings/SettingsActivity.java |   9 +
 .../presenter/entities/IPFSGateway.java       |  49 +++++
 .../fragments/FragmentAssetMenu.java          |   4 +-
 .../presenter/fragments/FragmentIPFS.java     |   3 +-
 .../tools/manager/BRSharedPrefs.java          |  12 ++
 .../ravenwallet/tools/util/BRConstants.java   |   2 +
 .../com/ravenwallet/tools/util/Utils.java     |   6 +
 .../layout/activity_ipfs_gateway_settings.xml |  50 +++++
 app/src/main/res/layout/gateway_list_item.xml |  57 +++++
 app/src/main/res/values/strings.xml           |   2 +
 12 files changed, 392 insertions(+), 4 deletions(-)
 create mode 100644 app/src/main/java/com/ravenwallet/presenter/activities/settings/IPFSGatewayActivity.java
 create mode 100644 app/src/main/java/com/ravenwallet/presenter/entities/IPFSGateway.java
 create mode 100644 app/src/main/res/layout/activity_ipfs_gateway_settings.xml
 create mode 100644 app/src/main/res/layout/gateway_list_item.xml

diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index d39c2f164..1ef6d3f79 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -145,6 +145,11 @@
             android:name="com.ravenwallet.presenter.activities.settings.DisplayCurrencyActivity"
             android:launchMode="singleTask"
 
+            android:screenOrientation="portrait"/>
+        <activity
+            android:name="com.ravenwallet.presenter.activities.settings.IPFSGatewayActivity"
+            android:launchMode="singleTask"
+
             android:screenOrientation="portrait"/>
         <activity
             android:name="com.ravenwallet.presenter.activities.settings.AboutActivity"
diff --git a/app/src/main/java/com/ravenwallet/presenter/activities/settings/IPFSGatewayActivity.java b/app/src/main/java/com/ravenwallet/presenter/activities/settings/IPFSGatewayActivity.java
new file mode 100644
index 000000000..dec6fa713
--- /dev/null
+++ b/app/src/main/java/com/ravenwallet/presenter/activities/settings/IPFSGatewayActivity.java
@@ -0,0 +1,197 @@
+package com.ravenwallet.presenter.activities.settings;
+
+import android.app.Activity;
+import android.content.Context;
+import android.graphics.Point;
+import android.os.Bundle;
+import android.util.TypedValue;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.AdapterView;
+import android.widget.ArrayAdapter;
+import android.widget.ImageButton;
+import android.widget.ImageView;
+import android.widget.ListView;
+import android.widget.TextView;
+
+import com.ravenwallet.R;
+import com.ravenwallet.presenter.activities.util.BRActivity;
+import com.ravenwallet.presenter.customviews.BRDialogView;
+import com.ravenwallet.presenter.entities.IPFSGateway;
+import com.ravenwallet.tools.animation.BRAnimator;
+import com.ravenwallet.tools.animation.BRDialog;
+import com.ravenwallet.tools.manager.BREventManager;
+import com.ravenwallet.tools.manager.BRSharedPrefs;
+import com.ravenwallet.tools.manager.FontManager;
+import com.ravenwallet.tools.util.BRConstants;
+import com.ravenwallet.wallet.WalletsMaster;
+import com.ravenwallet.wallet.abstracts.BaseWalletManager;
+
+import java.util.Currency;
+
+
+public class IPFSGatewayActivity extends BRActivity {
+    private static final String TAG = IPFSGatewayActivity.class.getName();
+    private ListView listView;
+    private GatewayListAdapter adapter;
+    public static boolean appVisible = false;
+    private static IPFSGatewayActivity app;
+    BaseWalletManager mWalletManager;
+
+
+    public static IPFSGatewayActivity getApp() {
+        return app;
+    }
+
+    @Override
+    protected void onSaveInstanceState(Bundle outState) {
+    }
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_ipfs_gateway_settings);
+
+        ImageButton faq = findViewById(R.id.faq_button);
+
+        faq.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                if (!BRAnimator.isClickAllowed()) return;
+                BRDialog.showCustomDialog(getApp(),
+                        getString(R.string.Settings_ipfsgateway),
+                        getString(R.string.Settings_ipfsgateway_faq),
+                        getString(R.string.Button_ok), null,
+                        new BRDialogView.BROnClickListener() {
+                            @Override
+                            public void onClick(BRDialogView brDialogView) {
+                                brDialogView.dismissWithAnimation();
+                            }
+                        }, null, null, 0);
+            }
+        });
+
+        mWalletManager = WalletsMaster.getInstance(this).getCurrentWallet(this);
+
+        listView = findViewById(R.id.gateway_list_view);
+        adapter = new GatewayListAdapter(this);
+
+        adapter.add(new IPFSGateway("Cloudflare A", "cf-ipfs.com"));
+        adapter.add(new IPFSGateway("Cloudflare B", "cloudflare-ipfs.com"));
+
+        adapter.add(new IPFSGateway("ipfs.io A", "ipfs.io"));
+        adapter.add(new IPFSGateway("ipfs.io B", "gateway.ipfs.io"));
+
+        adapter.add(new IPFSGateway("DWeb", "dweb.link"));
+        adapter.add(new IPFSGateway("GreyH.at", "ipfs.greyh.at"));
+        adapter.add(new IPFSGateway("infura.io", "ipfs.infura.io"));
+        //Really wanted this one to work, but it times out too much to be reliable :(
+        //adapter.add(new IPFSGateway("Ravenland", "gateway.ravenland.org"));
+
+        listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
+            @Override
+            public void onItemClick(AdapterView<?> parent, View view,
+                                    int position, long id) {
+                IPFSGateway newGateway = adapter.getItem(position);
+                BRSharedPrefs.putPreferredIPFSGateway(IPFSGatewayActivity.this, newGateway.hostname);
+                adapter.notifyDataSetChanged();
+            }
+
+        });
+
+        listView.setAdapter(adapter);
+        adapter.notifyDataSetChanged();
+    }
+
+    @Override
+    protected void onResume() {
+        super.onResume();
+        appVisible = true;
+        app = this;
+    }
+
+    @Override
+    protected void onPause() {
+        super.onPause();
+        appVisible = false;
+    }
+
+    @Override
+    public void onBackPressed() {
+        super.onBackPressed();
+        overridePendingTransition(R.anim.enter_from_left, R.anim.exit_to_right);
+    }
+
+    public class GatewayListAdapter extends ArrayAdapter<IPFSGateway> {
+        public final String TAG = GatewayListAdapter.class.getName();
+
+        private final Context mContext;
+        private final int layoutResourceId;
+        private TextView textViewItem;
+        private final Point displayParameters = new Point();
+
+        public GatewayListAdapter(Context mContext) {
+
+            super(mContext, R.layout.gateway_list_item);
+
+            this.layoutResourceId = R.layout.gateway_list_item;
+            this.mContext = mContext;
+            ((Activity) mContext).getWindowManager().getDefaultDisplay().getSize(displayParameters);
+        }
+
+        @Override
+        public View getView(int position, View convertView, ViewGroup parent) {
+
+            final String oldHost = BRSharedPrefs.getPreferredIPFSGateway(mContext);
+            if (convertView == null) {
+                LayoutInflater inflater = ((Activity) mContext).getLayoutInflater();
+                convertView = inflater.inflate(layoutResourceId, parent, false);
+            }
+            textViewItem = convertView.findViewById(R.id.gateway_item_name);
+            FontManager.overrideFonts(textViewItem);
+            IPFSGateway gateway = getItem(position);
+            textViewItem.setText(String.format("%s (%s)", gateway.name, gateway.hostname));
+            ImageView checkMark = convertView.findViewById(R.id.gateway_checkmark);
+
+            if (gateway.hostname.equalsIgnoreCase(oldHost)) {
+                checkMark.setVisibility(View.VISIBLE);
+            } else {
+                checkMark.setVisibility(View.GONE);
+            }
+            normalizeTextView();
+            return convertView;
+        }
+
+        @Override
+        public int getCount() {
+            return super.getCount();
+        }
+
+        @Override
+        public int getItemViewType(int position) {
+            return IGNORE_ITEM_VIEW_TYPE;
+        }
+
+        private boolean isTextSizeAcceptable(TextView textView) {
+            textView.measure(0, 0);
+            int textWidth = textView.getMeasuredWidth();
+            int checkMarkWidth = 76 + 20;
+            return (textWidth <= (displayParameters.x - checkMarkWidth));
+        }
+
+        private boolean normalizeTextView() {
+            int count = 0;
+            while (!isTextSizeAcceptable(textViewItem)) {
+                count++;
+                float textSize = textViewItem.getTextSize();
+                textViewItem.setTextSize(TypedValue.COMPLEX_UNIT_PX, textSize - 2);
+                this.notifyDataSetChanged();
+            }
+            return (count > 0);
+        }
+
+    }
+
+
+}
diff --git a/app/src/main/java/com/ravenwallet/presenter/activities/settings/SettingsActivity.java b/app/src/main/java/com/ravenwallet/presenter/activities/settings/SettingsActivity.java
index bf3157679..ccd472bb8 100644
--- a/app/src/main/java/com/ravenwallet/presenter/activities/settings/SettingsActivity.java
+++ b/app/src/main/java/com/ravenwallet/presenter/activities/settings/SettingsActivity.java
@@ -205,6 +205,15 @@ public void onClick(View v) {
             }
         }, false));
 
+        items.add(new BRSettingsItem(getString(R.string.Settings_ipfsgateway), BRSharedPrefs.getPreferredIPFSGateway(this), new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                Intent intent = new Intent(SettingsActivity.this, IPFSGatewayActivity.class);
+                startActivity(intent);
+                overridePendingTransition(R.anim.enter_from_right, R.anim.exit_to_left);
+            }
+        }, false));
+
         items.add(new BRSettingsItem(getString(R.string.Settings_currencySettings), "", null, true));
 
         items.add(new BRSettingsItem(getString(R.string.Settings_redeem_private_key), "", new View.OnClickListener() {
diff --git a/app/src/main/java/com/ravenwallet/presenter/entities/IPFSGateway.java b/app/src/main/java/com/ravenwallet/presenter/entities/IPFSGateway.java
new file mode 100644
index 000000000..e0a64542b
--- /dev/null
+++ b/app/src/main/java/com/ravenwallet/presenter/entities/IPFSGateway.java
@@ -0,0 +1,49 @@
+package com.ravenwallet.presenter.entities;
+
+import java.io.Serializable;
+
+
+/**
+ * RavenWallet
+ * <p/>
+ * Created by Mihail Gutan <mihail@breadwallet.com> on 8/18/15.
+ * Copyright (c) 2016 breadwallet LLC
+ * <p/>
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * <p/>
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * <p/>
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+public class IPFSGateway implements Serializable {
+    public static final String TAG = IPFSGateway.class.getName();
+
+    public String hostname;//the gateway's hostname, ie: ipfs.io or cloudflare-ipfs.com
+    public String name;//the gateway's display name
+
+    public IPFSGateway(String name, String hostname) {
+        this.hostname = hostname;
+        this.name = name;
+    }
+
+    public IPFSGateway() {
+    }
+
+    @Override
+    public String toString() {
+        return "host: " + hostname + " name: " + name;
+    }
+}
diff --git a/app/src/main/java/com/ravenwallet/presenter/fragments/FragmentAssetMenu.java b/app/src/main/java/com/ravenwallet/presenter/fragments/FragmentAssetMenu.java
index 1f8d01686..6976707ac 100644
--- a/app/src/main/java/com/ravenwallet/presenter/fragments/FragmentAssetMenu.java
+++ b/app/src/main/java/com/ravenwallet/presenter/fragments/FragmentAssetMenu.java
@@ -27,6 +27,7 @@
 import com.ravenwallet.tools.animation.BRAnimator;
 import com.ravenwallet.tools.animation.BRDialog;
 import com.ravenwallet.tools.manager.BRSharedPrefs;
+import com.ravenwallet.tools.util.Utils;
 import com.ravenwallet.wallet.WalletsMaster;
 import com.ravenwallet.wallet.abstracts.BaseWalletManager;
 import com.ravenwallet.wallet.RvnWalletManager;
@@ -50,7 +51,6 @@ public class FragmentAssetMenu extends Fragment implements BurnFragmentListener,
     private BRButton getDataButton;
     private Asset mAsset;
     private final static String EXTRAS_ASSET_KEY = "extras.asset.key";
-    private String BASE_IPFS_URL = "http://ipfs.io/ipfs/";
 
     public static FragmentAssetMenu newInstance(Asset asset) {
         FragmentAssetMenu fragment = new FragmentAssetMenu();
@@ -203,7 +203,7 @@ public void onClick(View view) {
                 String IPFSHash = mAsset.getIpfsHash();
                 if (!TextUtils.isEmpty(IPFSHash)) {
                     closeMe();
-                    String URL = BASE_IPFS_URL.concat(IPFSHash);
+                    String URL = Utils.getIpfsUrlFromHash(getContext(), IPFSHash);
                     startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(URL)));
                     //BRAnimator.showIPFSFragment(getActivity(), IPFSHash);
                 }
diff --git a/app/src/main/java/com/ravenwallet/presenter/fragments/FragmentIPFS.java b/app/src/main/java/com/ravenwallet/presenter/fragments/FragmentIPFS.java
index 01cec148c..fd254c2f3 100644
--- a/app/src/main/java/com/ravenwallet/presenter/fragments/FragmentIPFS.java
+++ b/app/src/main/java/com/ravenwallet/presenter/fragments/FragmentIPFS.java
@@ -53,7 +53,6 @@ public class FragmentIPFS extends Fragment {
     public LinearLayout backgroundLayout;
     public CardView signalLayout;
     private WebView webView;
-    private String BASE_IPFS_URL = "http://ipfs.io/ipfs/";
 
     public static String IPFS_HASH_KEY_EXTRAS = "IPFS.hash.key.extras";
 
@@ -84,7 +83,7 @@ public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle sa
             getActivity().getFragmentManager().popBackStack();
             return null;
         } else {
-            String URL = BASE_IPFS_URL.concat(IPFSHash);
+            String URL = Utils.getIpfsUrlFromHash(getContext(), IPFSHash);
 
             WebSettings webSettings = webView.getSettings();
 
diff --git a/app/src/main/java/com/ravenwallet/tools/manager/BRSharedPrefs.java b/app/src/main/java/com/ravenwallet/tools/manager/BRSharedPrefs.java
index 3873182ed..be8df2dac 100644
--- a/app/src/main/java/com/ravenwallet/tools/manager/BRSharedPrefs.java
+++ b/app/src/main/java/com/ravenwallet/tools/manager/BRSharedPrefs.java
@@ -95,6 +95,18 @@ public static void putPreferredFiatIso(Context context, String iso) {
 
     }
 
+    public static String getPreferredIPFSGateway(Context context) {
+        SharedPreferences settingsToGet = context.getSharedPreferences(PREFS_NAME, 0);
+        return settingsToGet.getString("ipfsGateway", null);
+    }
+
+    public static void putPreferredIPFSGateway(Context context, String gateway) {
+        SharedPreferences settings = context.getSharedPreferences(PREFS_NAME, 0);
+        SharedPreferences.Editor editor = settings.edit();
+        editor.putString("ipfsGateway", gateway);
+        editor.apply();
+    }
+
     public static boolean getExpertMode(Context context) {
         SharedPreferences prefs = context.getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE);
         return prefs.getBoolean("expertMode", false);
diff --git a/app/src/main/java/com/ravenwallet/tools/util/BRConstants.java b/app/src/main/java/com/ravenwallet/tools/util/BRConstants.java
index 03a419674..1c5d7d720 100644
--- a/app/src/main/java/com/ravenwallet/tools/util/BRConstants.java
+++ b/app/src/main/java/com/ravenwallet/tools/util/BRConstants.java
@@ -136,6 +136,8 @@ public class BRConstants {
     public static final String IP_REGEX = "^\\d{1,3}(\\.(\\d{1,3}(\\.(\\d{1,3}(\\.(\\d{1,3})?)?)?)?)?)?";
     public static final String PRIVACY_URL = "https://ravencoin.org/mobilewallet/support/privacy.html";
 
+    public static final String IPFS_URL_FORMAT = "https://%s/ipfs/%s";
+
     public static final List<String> STR_ISSUE_ASSET_BURN_ADDESSES =
             Lists.newArrayList("RXissueAssetXXXXXXXXXXXXXXXXXhhZGt",
                     "n1issueAssetXXXXXXXXXXXXXXXXWdnemQ");
diff --git a/app/src/main/java/com/ravenwallet/tools/util/Utils.java b/app/src/main/java/com/ravenwallet/tools/util/Utils.java
index a438fd266..015b5c133 100644
--- a/app/src/main/java/com/ravenwallet/tools/util/Utils.java
+++ b/app/src/main/java/com/ravenwallet/tools/util/Utils.java
@@ -18,6 +18,7 @@
 import android.widget.Toast;
 
 import com.ravenwallet.presenter.activities.intro.IntroActivity;
+import com.ravenwallet.tools.manager.BRSharedPrefs;
 
 import java.text.SimpleDateFormat;
 import java.util.Calendar;
@@ -224,4 +225,9 @@ public static String retrieveAddressChunk(String scanResult) {
         }
         return null;
     }
+
+    public static String getIpfsUrlFromHash(Context app, String hash) {
+        //TODO: Hash Validation?
+        return String.format(BRConstants.IPFS_URL_FORMAT, BRSharedPrefs.getPreferredIPFSGateway(app), hash);
+    }
 }
\ No newline at end of file
diff --git a/app/src/main/res/layout/activity_ipfs_gateway_settings.xml b/app/src/main/res/layout/activity_ipfs_gateway_settings.xml
new file mode 100644
index 000000000..8c27cb9b8
--- /dev/null
+++ b/app/src/main/res/layout/activity_ipfs_gateway_settings.xml
@@ -0,0 +1,50 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:background="@color/extra_light_blue_background"
+    tools:context="com.ravenwallet.presenter.activities.SetPinActivity">
+
+    <com.ravenwallet.presenter.customviews.BRText
+        android:id="@+id/title"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginStart="16dp"
+        android:layout_marginTop="32dp"
+        android:text="@string/Settings.ipfsgateway"
+        android:textColor="@color/almost_black"
+        android:textSize="@dimen/header"
+        app:customTFont="CircularPro-Bold.otf"
+        app:layout_constraintLeft_toLeftOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+
+    <ImageButton
+        android:id="@+id/faq_button"
+        android:layout_width="@dimen/faq_dimen"
+        android:layout_height="@dimen/faq_dimen"
+        android:layout_marginBottom="0dp"
+        android:layout_marginEnd="16dp"
+        android:layout_marginTop="0dp"
+        android:background="@drawable/faq_question_black"
+        app:layout_constraintBottom_toBottomOf="@+id/title"
+        app:layout_constraintRight_toRightOf="parent"
+        app:layout_constraintTop_toTopOf="@+id/title" />
+
+    <ListView
+        android:id="@+id/gateway_list_view"
+        android:layout_width="0dp"
+        android:layout_height="0dp"
+        android:layout_marginBottom="8dp"
+        android:layout_marginLeft="0dp"
+        android:layout_marginRight="0dp"
+        android:layout_marginTop="16dp"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintHorizontal_bias="0.0"
+        app:layout_constraintLeft_toLeftOf="parent"
+        app:layout_constraintRight_toRightOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/title"
+        app:layout_constraintVertical_bias="0.0" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>
diff --git a/app/src/main/res/layout/gateway_list_item.xml b/app/src/main/res/layout/gateway_list_item.xml
new file mode 100644
index 000000000..37afd8820
--- /dev/null
+++ b/app/src/main/res/layout/gateway_list_item.xml
@@ -0,0 +1,57 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+                xmlns:app="http://schemas.android.com/apk/res-auto"
+                android:layout_width="match_parent"
+                android:layout_height="match_parent"
+                android:background="@color/white"
+    android:orientation="vertical">
+
+    <com.ravenwallet.presenter.customviews.BRText
+        xmlns:android="http://schemas.android.com/apk/res/android"
+        android:id="@+id/gateway_item_name"
+        android:layout_width="fill_parent"
+        android:layout_height="wrap_content"
+        android:layout_alignParentStart="true"
+        android:layout_alignParentTop="true"
+        android:filterTouchesWhenObscured="true"
+        android:gravity="center_vertical"
+        android:minHeight="?android:attr/listPreferredItemHeightSmall"
+        android:paddingEnd="?android:attr/listPreferredItemPaddingEnd"
+        android:paddingStart="16dp"
+        android:text=""
+        android:textAppearance="?android:attr/textAppearanceLarge"
+        android:textColor="@color/dark_gray"
+        android:textSize="@dimen/sub_header"
+        app:customTFont="CircularPro-Medium.otf"/>
+
+    <ImageView
+        android:id="@+id/gateway_checkmark"
+        android:layout_width="16dp"
+        android:layout_height="16dp"
+        android:layout_alignParentEnd="true"
+        android:layout_centerVertical="true"
+        android:layout_marginEnd="10dp"
+        android:background="@drawable/ic_check_mark_blue"
+        android:filterTouchesWhenObscured="true"
+        android:visibility="gone"/>
+
+    <com.ravenwallet.presenter.customviews.BRText
+        xmlns:android="http://schemas.android.com/apk/res/android"
+        android:id="@+id/gateway_item_hostname"
+        android:layout_width="fill_parent"
+        android:layout_height="wrap_content"
+        android:layout_alignParentStart="true"
+        android:layout_alignParentTop="true"
+        android:layout_toLeftOf="@id/gateway_checkmark"
+        android:filterTouchesWhenObscured="true"
+        android:gravity="center_vertical"
+        android:minHeight="?android:attr/listPreferredItemHeightSmall"
+        android:paddingEnd="?android:attr/listPreferredItemPaddingEnd"
+        android:paddingStart="16dp"
+        android:text=""
+        android:textAppearance="?android:attr/textAppearanceLarge"
+        android:textColor="@color/dark_gray"
+        android:textSize="@dimen/sub_header"
+        app:customTFont="CircularPro-Medium.otf"/>
+
+</RelativeLayout>
\ No newline at end of file
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index a85db1cfb..5fac658da 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -397,6 +397,8 @@
     <!-- i.e. the currency which will be displayed -->
     <string name="Settings.currency">Display Currency</string>
     <string name="Settings.currencySettings">Currency Settings</string>
+    <string name="Settings.ipfsgateway">IPFS Gateway</string>
+    <string name="Settings.ipfsgateway_faq">Attachments on assets, and other resources, are uploaded to the IPFS distributed network.\n\nThis option selects which centralized web-host the application should use, when displaying IPFS content.</string>
     <string name="Settings.rescan.blockchain">Sync Blockchain</string>
     <string name="Settings.redeem.private.key">Redeem Wallet / Private Key</string>
     <string name="Settings.other">Other</string>

From de2706bbf7a84e21ac022b5c11b0097f1702046b Mon Sep 17 00:00:00 2001
From: Ben Abraham <ben.d.abraham@gmail.com>
Date: Tue, 6 Apr 2021 04:38:44 -0400
Subject: [PATCH 02/10] Fixed no ipfs host selected by default. Added
 BRConstants.IPFS_DEFAULT_HOST with default value "ipfs.io" Moved ipfs.io
 gateways to top of settings list since they are the default option.

---
 .../presenter/activities/settings/IPFSGatewayActivity.java  | 6 +++---
 .../java/com/ravenwallet/tools/manager/BRSharedPrefs.java   | 2 +-
 .../main/java/com/ravenwallet/tools/util/BRConstants.java   | 2 ++
 3 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/app/src/main/java/com/ravenwallet/presenter/activities/settings/IPFSGatewayActivity.java b/app/src/main/java/com/ravenwallet/presenter/activities/settings/IPFSGatewayActivity.java
index dec6fa713..5a4af1440 100644
--- a/app/src/main/java/com/ravenwallet/presenter/activities/settings/IPFSGatewayActivity.java
+++ b/app/src/main/java/com/ravenwallet/presenter/activities/settings/IPFSGatewayActivity.java
@@ -77,12 +77,12 @@ public void onClick(BRDialogView brDialogView) {
         listView = findViewById(R.id.gateway_list_view);
         adapter = new GatewayListAdapter(this);
 
-        adapter.add(new IPFSGateway("Cloudflare A", "cf-ipfs.com"));
-        adapter.add(new IPFSGateway("Cloudflare B", "cloudflare-ipfs.com"));
-
         adapter.add(new IPFSGateway("ipfs.io A", "ipfs.io"));
         adapter.add(new IPFSGateway("ipfs.io B", "gateway.ipfs.io"));
 
+        adapter.add(new IPFSGateway("Cloudflare A", "cf-ipfs.com"));
+        adapter.add(new IPFSGateway("Cloudflare B", "cloudflare-ipfs.com"));
+
         adapter.add(new IPFSGateway("DWeb", "dweb.link"));
         adapter.add(new IPFSGateway("GreyH.at", "ipfs.greyh.at"));
         adapter.add(new IPFSGateway("infura.io", "ipfs.infura.io"));
diff --git a/app/src/main/java/com/ravenwallet/tools/manager/BRSharedPrefs.java b/app/src/main/java/com/ravenwallet/tools/manager/BRSharedPrefs.java
index be8df2dac..4305273d6 100644
--- a/app/src/main/java/com/ravenwallet/tools/manager/BRSharedPrefs.java
+++ b/app/src/main/java/com/ravenwallet/tools/manager/BRSharedPrefs.java
@@ -97,7 +97,7 @@ public static void putPreferredFiatIso(Context context, String iso) {
 
     public static String getPreferredIPFSGateway(Context context) {
         SharedPreferences settingsToGet = context.getSharedPreferences(PREFS_NAME, 0);
-        return settingsToGet.getString("ipfsGateway", null);
+        return settingsToGet.getString("ipfsGateway", BRConstants.IPFS_DEFAULT_HOST);
     }
 
     public static void putPreferredIPFSGateway(Context context, String gateway) {
diff --git a/app/src/main/java/com/ravenwallet/tools/util/BRConstants.java b/app/src/main/java/com/ravenwallet/tools/util/BRConstants.java
index 1c5d7d720..bbf350feb 100644
--- a/app/src/main/java/com/ravenwallet/tools/util/BRConstants.java
+++ b/app/src/main/java/com/ravenwallet/tools/util/BRConstants.java
@@ -137,6 +137,8 @@ public class BRConstants {
     public static final String PRIVACY_URL = "https://ravencoin.org/mobilewallet/support/privacy.html";
 
     public static final String IPFS_URL_FORMAT = "https://%s/ipfs/%s";
+    //NOTE: Additional hosts are defined in IPFSGatewayActivity.java
+    public static final String IPFS_DEFAULT_HOST = "ipfs.io";
 
     public static final List<String> STR_ISSUE_ASSET_BURN_ADDESSES =
             Lists.newArrayList("RXissueAssetXXXXXXXXXXXXXXXXXhhZGt",

From 33878c46fdf5426dd2ce6e8d6df8cb8db6f166c9 Mon Sep 17 00:00:00 2001
From: Ben Abraham <ben.d.abraham@gmail.com>
Date: Tue, 6 Apr 2021 17:58:03 -0400
Subject: [PATCH 03/10] Added rest of the mnemonic files as defined by the
 BIP39 spec
 (https://github.com/bitcoin/bips/blob/master/bip-0039/bip-0039-wordlists.md)

---
 app/src/main/assets/words/cs-BIP39Words.txt   | 2048 +++++++++++++++++
 app/src/main/assets/words/it-BIP39Words.txt   | 2048 +++++++++++++++++
 app/src/main/assets/words/ko-BIP39Words.txt   | 2048 +++++++++++++++++
 app/src/main/assets/words/pt-BIP39Words.txt   | 2048 +++++++++++++++++
 ...zh-BIP39Words.txt => zh-CN-BIP39Words.txt} |    0
 .../main/assets/words/zh-TW-BIP39Words.txt    | 2048 +++++++++++++++++
 app/src/test/java/PaperKeyTests.java          |    7 +-
 app/src/test/resources/cs-BIP39Words.txt      | 2048 +++++++++++++++++
 app/src/test/resources/it-BIP39Words.txt      | 2048 +++++++++++++++++
 app/src/test/resources/ko-BIP39Words.txt      | 2048 +++++++++++++++++
 app/src/test/resources/pt-BIP39Words.txt      | 2048 +++++++++++++++++
 ...zh-BIP39Words.txt => zh-CN-BIP39Words.txt} |    0
 app/src/test/resources/zh-TW-BIP39Words.txt   | 2048 +++++++++++++++++
 13 files changed, 20486 insertions(+), 1 deletion(-)
 create mode 100644 app/src/main/assets/words/cs-BIP39Words.txt
 create mode 100644 app/src/main/assets/words/it-BIP39Words.txt
 create mode 100644 app/src/main/assets/words/ko-BIP39Words.txt
 create mode 100644 app/src/main/assets/words/pt-BIP39Words.txt
 rename app/src/main/assets/words/{zh-BIP39Words.txt => zh-CN-BIP39Words.txt} (100%)
 create mode 100644 app/src/main/assets/words/zh-TW-BIP39Words.txt
 create mode 100644 app/src/test/resources/cs-BIP39Words.txt
 create mode 100644 app/src/test/resources/it-BIP39Words.txt
 create mode 100644 app/src/test/resources/ko-BIP39Words.txt
 create mode 100644 app/src/test/resources/pt-BIP39Words.txt
 rename app/src/test/resources/{zh-BIP39Words.txt => zh-CN-BIP39Words.txt} (100%)
 create mode 100644 app/src/test/resources/zh-TW-BIP39Words.txt

diff --git a/app/src/main/assets/words/cs-BIP39Words.txt b/app/src/main/assets/words/cs-BIP39Words.txt
new file mode 100644
index 000000000..a41bdd28f
--- /dev/null
+++ b/app/src/main/assets/words/cs-BIP39Words.txt
@@ -0,0 +1,2048 @@
+abdikace
+abeceda
+adresa
+agrese
+akce
+aktovka
+alej
+alkohol
+amputace
+ananas
+andulka
+anekdota
+anketa
+antika
+anulovat
+archa
+arogance
+asfalt
+asistent
+aspirace
+astma
+astronom
+atlas
+atletika
+atol
+autobus
+azyl
+babka
+bachor
+bacil
+baculka
+badatel
+bageta
+bagr
+bahno
+bakterie
+balada
+baletka
+balkon
+balonek
+balvan
+balza
+bambus
+bankomat
+barbar
+baret
+barman
+baroko
+barva
+baterka
+batoh
+bavlna
+bazalka
+bazilika
+bazuka
+bedna
+beran
+beseda
+bestie
+beton
+bezinka
+bezmoc
+beztak
+bicykl
+bidlo
+biftek
+bikiny
+bilance
+biograf
+biolog
+bitva
+bizon
+blahobyt
+blatouch
+blecha
+bledule
+blesk
+blikat
+blizna
+blokovat
+bloudit
+blud
+bobek
+bobr
+bodlina
+bodnout
+bohatost
+bojkot
+bojovat
+bokorys
+bolest
+borec
+borovice
+bota
+boubel
+bouchat
+bouda
+boule
+bourat
+boxer
+bradavka
+brambora
+branka
+bratr
+brepta
+briketa
+brko
+brloh
+bronz
+broskev
+brunetka
+brusinka
+brzda
+brzy
+bublina
+bubnovat
+buchta
+buditel
+budka
+budova
+bufet
+bujarost
+bukvice
+buldok
+bulva
+bunda
+bunkr
+burza
+butik
+buvol
+buzola
+bydlet
+bylina
+bytovka
+bzukot
+capart
+carevna
+cedr
+cedule
+cejch
+cejn
+cela
+celer
+celkem
+celnice
+cenina
+cennost
+cenovka
+centrum
+cenzor
+cestopis
+cetka
+chalupa
+chapadlo
+charita
+chata
+chechtat
+chemie
+chichot
+chirurg
+chlad
+chleba
+chlubit
+chmel
+chmura
+chobot
+chochol
+chodba
+cholera
+chomout
+chopit
+choroba
+chov
+chrapot
+chrlit
+chrt
+chrup
+chtivost
+chudina
+chutnat
+chvat
+chvilka
+chvost
+chyba
+chystat
+chytit
+cibule
+cigareta
+cihelna
+cihla
+cinkot
+cirkus
+cisterna
+citace
+citrus
+cizinec
+cizost
+clona
+cokoliv
+couvat
+ctitel
+ctnost
+cudnost
+cuketa
+cukr
+cupot
+cvaknout
+cval
+cvik
+cvrkot
+cyklista
+daleko
+dareba
+datel
+datum
+dcera
+debata
+dechovka
+decibel
+deficit
+deflace
+dekl
+dekret
+demokrat
+deprese
+derby
+deska
+detektiv
+dikobraz
+diktovat
+dioda
+diplom
+disk
+displej
+divadlo
+divoch
+dlaha
+dlouho
+dluhopis
+dnes
+dobro
+dobytek
+docent
+dochutit
+dodnes
+dohled
+dohoda
+dohra
+dojem
+dojnice
+doklad
+dokola
+doktor
+dokument
+dolar
+doleva
+dolina
+doma
+dominant
+domluvit
+domov
+donutit
+dopad
+dopis
+doplnit
+doposud
+doprovod
+dopustit
+dorazit
+dorost
+dort
+dosah
+doslov
+dostatek
+dosud
+dosyta
+dotaz
+dotek
+dotknout
+doufat
+doutnat
+dovozce
+dozadu
+doznat
+dozorce
+drahota
+drak
+dramatik
+dravec
+draze
+drdol
+drobnost
+drogerie
+drozd
+drsnost
+drtit
+drzost
+duben
+duchovno
+dudek
+duha
+duhovka
+dusit
+dusno
+dutost
+dvojice
+dvorec
+dynamit
+ekolog
+ekonomie
+elektron
+elipsa
+email
+emise
+emoce
+empatie
+epizoda
+epocha
+epopej
+epos
+esej
+esence
+eskorta
+eskymo
+etiketa
+euforie
+evoluce
+exekuce
+exkurze
+expedice
+exploze
+export
+extrakt
+facka
+fajfka
+fakulta
+fanatik
+fantazie
+farmacie
+favorit
+fazole
+federace
+fejeton
+fenka
+fialka
+figurant
+filozof
+filtr
+finance
+finta
+fixace
+fjord
+flanel
+flirt
+flotila
+fond
+fosfor
+fotbal
+fotka
+foton
+frakce
+freska
+fronta
+fukar
+funkce
+fyzika
+galeje
+garant
+genetika
+geolog
+gilotina
+glazura
+glejt
+golem
+golfista
+gotika
+graf
+gramofon
+granule
+grep
+gril
+grog
+groteska
+guma
+hadice
+hadr
+hala
+halenka
+hanba
+hanopis
+harfa
+harpuna
+havran
+hebkost
+hejkal
+hejno
+hejtman
+hektar
+helma
+hematom
+herec
+herna
+heslo
+hezky
+historik
+hladovka
+hlasivky
+hlava
+hledat
+hlen
+hlodavec
+hloh
+hloupost
+hltat
+hlubina
+hluchota
+hmat
+hmota
+hmyz
+hnis
+hnojivo
+hnout
+hoblina
+hoboj
+hoch
+hodiny
+hodlat
+hodnota
+hodovat
+hojnost
+hokej
+holinka
+holka
+holub
+homole
+honitba
+honorace
+horal
+horda
+horizont
+horko
+horlivec
+hormon
+hornina
+horoskop
+horstvo
+hospoda
+hostina
+hotovost
+houba
+houf
+houpat
+houska
+hovor
+hradba
+hranice
+hravost
+hrazda
+hrbolek
+hrdina
+hrdlo
+hrdost
+hrnek
+hrobka
+hromada
+hrot
+hrouda
+hrozen
+hrstka
+hrubost
+hryzat
+hubenost
+hubnout
+hudba
+hukot
+humr
+husita
+hustota
+hvozd
+hybnost
+hydrant
+hygiena
+hymna
+hysterik
+idylka
+ihned
+ikona
+iluze
+imunita
+infekce
+inflace
+inkaso
+inovace
+inspekce
+internet
+invalida
+investor
+inzerce
+ironie
+jablko
+jachta
+jahoda
+jakmile
+jakost
+jalovec
+jantar
+jarmark
+jaro
+jasan
+jasno
+jatka
+javor
+jazyk
+jedinec
+jedle
+jednatel
+jehlan
+jekot
+jelen
+jelito
+jemnost
+jenom
+jepice
+jeseter
+jevit
+jezdec
+jezero
+jinak
+jindy
+jinoch
+jiskra
+jistota
+jitrnice
+jizva
+jmenovat
+jogurt
+jurta
+kabaret
+kabel
+kabinet
+kachna
+kadet
+kadidlo
+kahan
+kajak
+kajuta
+kakao
+kaktus
+kalamita
+kalhoty
+kalibr
+kalnost
+kamera
+kamkoliv
+kamna
+kanibal
+kanoe
+kantor
+kapalina
+kapela
+kapitola
+kapka
+kaple
+kapota
+kapr
+kapusta
+kapybara
+karamel
+karotka
+karton
+kasa
+katalog
+katedra
+kauce
+kauza
+kavalec
+kazajka
+kazeta
+kazivost
+kdekoliv
+kdesi
+kedluben
+kemp
+keramika
+kino
+klacek
+kladivo
+klam
+klapot
+klasika
+klaun
+klec
+klenba
+klepat
+klesnout
+klid
+klima
+klisna
+klobouk
+klokan
+klopa
+kloub
+klubovna
+klusat
+kluzkost
+kmen
+kmitat
+kmotr
+kniha
+knot
+koalice
+koberec
+kobka
+kobliha
+kobyla
+kocour
+kohout
+kojenec
+kokos
+koktejl
+kolaps
+koleda
+kolize
+kolo
+komando
+kometa
+komik
+komnata
+komora
+kompas
+komunita
+konat
+koncept
+kondice
+konec
+konfese
+kongres
+konina
+konkurs
+kontakt
+konzerva
+kopanec
+kopie
+kopnout
+koprovka
+korbel
+korektor
+kormidlo
+koroptev
+korpus
+koruna
+koryto
+korzet
+kosatec
+kostka
+kotel
+kotleta
+kotoul
+koukat
+koupelna
+kousek
+kouzlo
+kovboj
+koza
+kozoroh
+krabice
+krach
+krajina
+kralovat
+krasopis
+kravata
+kredit
+krejcar
+kresba
+kreveta
+kriket
+kritik
+krize
+krkavec
+krmelec
+krmivo
+krocan
+krok
+kronika
+kropit
+kroupa
+krovka
+krtek
+kruhadlo
+krupice
+krutost
+krvinka
+krychle
+krypta
+krystal
+kryt
+kudlanka
+kufr
+kujnost
+kukla
+kulajda
+kulich
+kulka
+kulomet
+kultura
+kuna
+kupodivu
+kurt
+kurzor
+kutil
+kvalita
+kvasinka
+kvestor
+kynolog
+kyselina
+kytara
+kytice
+kytka
+kytovec
+kyvadlo
+labrador
+lachtan
+ladnost
+laik
+lakomec
+lamela
+lampa
+lanovka
+lasice
+laso
+lastura
+latinka
+lavina
+lebka
+leckdy
+leden
+lednice
+ledovka
+ledvina
+legenda
+legie
+legrace
+lehce
+lehkost
+lehnout
+lektvar
+lenochod
+lentilka
+lepenka
+lepidlo
+letadlo
+letec
+letmo
+letokruh
+levhart
+levitace
+levobok
+libra
+lichotka
+lidojed
+lidskost
+lihovina
+lijavec
+lilek
+limetka
+linie
+linka
+linoleum
+listopad
+litina
+litovat
+lobista
+lodivod
+logika
+logoped
+lokalita
+loket
+lomcovat
+lopata
+lopuch
+lord
+losos
+lotr
+loudal
+louh
+louka
+louskat
+lovec
+lstivost
+lucerna
+lucifer
+lump
+lusk
+lustrace
+lvice
+lyra
+lyrika
+lysina
+madam
+madlo
+magistr
+mahagon
+majetek
+majitel
+majorita
+makak
+makovice
+makrela
+malba
+malina
+malovat
+malvice
+maminka
+mandle
+manko
+marnost
+masakr
+maskot
+masopust
+matice
+matrika
+maturita
+mazanec
+mazivo
+mazlit
+mazurka
+mdloba
+mechanik
+meditace
+medovina
+melasa
+meloun
+mentolka
+metla
+metoda
+metr
+mezera
+migrace
+mihnout
+mihule
+mikina
+mikrofon
+milenec
+milimetr
+milost
+mimika
+mincovna
+minibar
+minomet
+minulost
+miska
+mistr
+mixovat
+mladost
+mlha
+mlhovina
+mlok
+mlsat
+mluvit
+mnich
+mnohem
+mobil
+mocnost
+modelka
+modlitba
+mohyla
+mokro
+molekula
+momentka
+monarcha
+monokl
+monstrum
+montovat
+monzun
+mosaz
+moskyt
+most
+motivace
+motorka
+motyka
+moucha
+moudrost
+mozaika
+mozek
+mozol
+mramor
+mravenec
+mrkev
+mrtvola
+mrzet
+mrzutost
+mstitel
+mudrc
+muflon
+mulat
+mumie
+munice
+muset
+mutace
+muzeum
+muzikant
+myslivec
+mzda
+nabourat
+nachytat
+nadace
+nadbytek
+nadhoz
+nadobro
+nadpis
+nahlas
+nahnat
+nahodile
+nahradit
+naivita
+najednou
+najisto
+najmout
+naklonit
+nakonec
+nakrmit
+nalevo
+namazat
+namluvit
+nanometr
+naoko
+naopak
+naostro
+napadat
+napevno
+naplnit
+napnout
+naposled
+naprosto
+narodit
+naruby
+narychlo
+nasadit
+nasekat
+naslepo
+nastat
+natolik
+navenek
+navrch
+navzdory
+nazvat
+nebe
+nechat
+necky
+nedaleko
+nedbat
+neduh
+negace
+nehet
+nehoda
+nejen
+nejprve
+neklid
+nelibost
+nemilost
+nemoc
+neochota
+neonka
+nepokoj
+nerost
+nerv
+nesmysl
+nesoulad
+netvor
+neuron
+nevina
+nezvykle
+nicota
+nijak
+nikam
+nikdy
+nikl
+nikterak
+nitro
+nocleh
+nohavice
+nominace
+nora
+norek
+nositel
+nosnost
+nouze
+noviny
+novota
+nozdra
+nuda
+nudle
+nuget
+nutit
+nutnost
+nutrie
+nymfa
+obal
+obarvit
+obava
+obdiv
+obec
+obehnat
+obejmout
+obezita
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\ No newline at end of file
diff --git a/app/src/main/assets/words/it-BIP39Words.txt b/app/src/main/assets/words/it-BIP39Words.txt
new file mode 100644
index 000000000..e72be893e
--- /dev/null
+++ b/app/src/main/assets/words/it-BIP39Words.txt
@@ -0,0 +1,2048 @@
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+abolire
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+zampogna
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+zappato
+zattera
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+zerbino
+zibetto
+zinco
+zircone
+zitto
+zolla
+zotico
+zucchero
+zufolo
+zulu
+zuppa
\ No newline at end of file
diff --git a/app/src/main/assets/words/ko-BIP39Words.txt b/app/src/main/assets/words/ko-BIP39Words.txt
new file mode 100644
index 000000000..77fadf532
--- /dev/null
+++ b/app/src/main/assets/words/ko-BIP39Words.txt
@@ -0,0 +1,2048 @@
+가격
+가끔
+가난
+가능
+가득
+가르침
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+희곡
+희망
+희생
+흰색
+힘껏
\ No newline at end of file
diff --git a/app/src/main/assets/words/pt-BIP39Words.txt b/app/src/main/assets/words/pt-BIP39Words.txt
new file mode 100644
index 000000000..27f23b29c
--- /dev/null
+++ b/app/src/main/assets/words/pt-BIP39Words.txt
@@ -0,0 +1,2048 @@
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\ No newline at end of file
diff --git a/app/src/main/assets/words/zh-BIP39Words.txt b/app/src/main/assets/words/zh-CN-BIP39Words.txt
similarity index 100%
rename from app/src/main/assets/words/zh-BIP39Words.txt
rename to app/src/main/assets/words/zh-CN-BIP39Words.txt
diff --git a/app/src/main/assets/words/zh-TW-BIP39Words.txt b/app/src/main/assets/words/zh-TW-BIP39Words.txt
new file mode 100644
index 000000000..65a34144f
--- /dev/null
+++ b/app/src/main/assets/words/zh-TW-BIP39Words.txt
@@ -0,0 +1,2048 @@
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\ No newline at end of file
diff --git a/app/src/test/java/PaperKeyTests.java b/app/src/test/java/PaperKeyTests.java
index 76e989b40..6d789725b 100644
--- a/app/src/test/java/PaperKeyTests.java
+++ b/app/src/test/java/PaperKeyTests.java
@@ -71,11 +71,16 @@ public void testPaperKeyValidation() {
     private List<String> getAllWords() {
         List<String> result = new ArrayList<>();
         List<String> names = new ArrayList<>();
+        names.add("cs-BIP39Words.txt");
         names.add("en-BIP39Words.txt");
         names.add("es-BIP39Words.txt");
         names.add("fr-BIP39Words.txt");
+        names.add("it-BIP39Words.txt");
         names.add("ja-BIP39Words.txt");
-        names.add("zh-BIP39Words.txt");
+        names.add("ko-BIP39Words.txt");
+        names.add("pt-BIP39Words.txt");
+        names.add("zh-CN-BIP39Words.txt");
+        names.add("zh-TW-BIP39Words.txt");
 
         for (String fileName : names) {
             InputStream in = null;
diff --git a/app/src/test/resources/cs-BIP39Words.txt b/app/src/test/resources/cs-BIP39Words.txt
new file mode 100644
index 000000000..a41bdd28f
--- /dev/null
+++ b/app/src/test/resources/cs-BIP39Words.txt
@@ -0,0 +1,2048 @@
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+punc
+pupen
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+raft
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+raketa
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+sysel
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+tabule
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+tekutina
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+temnota
+tendence
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+tenor
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+tepna
+teprve
+terapie
+termoska
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+zvenku
+zvesela
+zvon
+zvrat
+zvukovod
+zvyk
\ No newline at end of file
diff --git a/app/src/test/resources/it-BIP39Words.txt b/app/src/test/resources/it-BIP39Words.txt
new file mode 100644
index 000000000..e72be893e
--- /dev/null
+++ b/app/src/test/resources/it-BIP39Words.txt
@@ -0,0 +1,2048 @@
+abaco
+abbaglio
+abbinato
+abete
+abisso
+abolire
+abrasivo
+abrogato
+accadere
+accenno
+accusato
+acetone
+achille
+acido
+acqua
+acre
+acrilico
+acrobata
+acuto
+adagio
+addebito
+addome
+adeguato
+aderire
+adipe
+adottare
+adulare
+affabile
+affetto
+affisso
+affranto
+aforisma
+afoso
+africano
+agave
+agente
+agevole
+aggancio
+agire
+agitare
+agonismo
+agricolo
+agrumeto
+aguzzo
+alabarda
+alato
+albatro
+alberato
+albo
+albume
+alce
+alcolico
+alettone
+alfa
+algebra
+aliante
+alibi
+alimento
+allagato
+allegro
+allievo
+allodola
+allusivo
+almeno
+alogeno
+alpaca
+alpestre
+altalena
+alterno
+alticcio
+altrove
+alunno
+alveolo
+alzare
+amalgama
+amanita
+amarena
+ambito
+ambrato
+ameba
+america
+ametista
+amico
+ammasso
+ammenda
+ammirare
+ammonito
+amore
+ampio
+ampliare
+amuleto
+anacardo
+anagrafe
+analista
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+anatra
+anca
+ancella
+ancora
+andare
+andrea
+anello
+angelo
+angolare
+angusto
+anima
+annegare
+annidato
+anno
+annuncio
+anonimo
+anticipo
+anzi
+apatico
+apertura
+apode
+apparire
+appetito
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+approdo
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+arazzo
+arbitro
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+ardito
+arenile
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+argine
+arguto
+aria
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+arnese
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+arringa
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+arzillo
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+asepsi
+asettico
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+asino
+asola
+aspirato
+aspro
+assaggio
+asse
+assoluto
+assurdo
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+atavico
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+atomico
+atono
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+avere
+avvenire
+avviso
+avvolgere
+azione
+azoto
+azzimo
+azzurro
+babele
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+bacino
+baco
+badessa
+badilata
+bagnato
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+balcone
+baldo
+balena
+ballata
+balzano
+bambino
+bandire
+baraonda
+barbaro
+barca
+baritono
+barlume
+barocco
+basilico
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+batosta
+battuto
+baule
+bava
+bavosa
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+benevole
+benigno
+benzina
+bere
+berlina
+beta
+bibita
+bici
+bidone
+bifido
+biga
+bilancia
+bimbo
+binocolo
+biologo
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+bipolare
+birbante
+birra
+biscotto
+bisesto
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+bisonte
+bisturi
+bizzarro
+blando
+blatta
+bollito
+bonifico
+bordo
+bosco
+botanico
+bottino
+bozzolo
+braccio
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+brama
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+bravura
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+brodo
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+budino
+buffone
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+bulbo
+buono
+burlone
+burrasca
+bussola
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+cadetto
+caduco
+calamaro
+calcolo
+calesse
+calibro
+calmo
+caloria
+cambusa
+camerata
+camicia
+cammino
+camola
+campale
+canapa
+candela
+cane
+canino
+canotto
+cantina
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+capello
+capitolo
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+capsula
+carapace
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+carisma
+carovana
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+cartolina
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+caso
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+castello
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+catrame
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+cavillo
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+celebre
+cellulare
+cena
+cenone
+centesimo
+ceramica
+cercare
+certo
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+cervello
+cesoia
+cespo
+ceto
+chela
+chiaro
+chicca
+chiedere
+chimera
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+chitarra
+ciao
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+citrico
+cittadino
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+civetta
+civile
+classico
+clinica
+cloro
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+codardo
+codice
+coerente
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+collare
+colmato
+colore
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+colza
+coma
+cometa
+commando
+comodo
+computer
+comune
+conciso
+condurre
+conferma
+congelare
+coniuge
+connesso
+conoscere
+consumo
+continuo
+convegno
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+copione
+coppia
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+corazza
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+corolla
+corpo
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+covato
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+cullato
+cupola
+curatore
+cursore
+curvo
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+daniela
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+datato
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+dirotto
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+disagio
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+dividere
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+dogma
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+domenica
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+dondolo
+dono
+dormire
+dote
+dottore
+dovuto
+dozzina
+drago
+druido
+dubbio
+dubitare
+ducale
+duna
+duomo
+duplice
+duraturo
+ebano
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+ecco
+eclissi
+economia
+edera
+edicola
+edile
+editoria
+educare
+egemonia
+egli
+egoismo
+egregio
+elaborato
+elargire
+elegante
+elencato
+eletto
+elevare
+elfico
+elica
+elmo
+elsa
+eluso
+emanato
+emblema
+emesso
+emiro
+emotivo
+emozione
+empirico
+emulo
+endemico
+enduro
+energia
+enfasi
+enoteca
+entrare
+enzima
+epatite
+epilogo
+episodio
+epocale
+eppure
+equatore
+erario
+erba
+erboso
+erede
+eremita
+erigere
+ermetico
+eroe
+erosivo
+errante
+esagono
+esame
+esanime
+esaudire
+esca
+esempio
+esercito
+esibito
+esigente
+esistere
+esito
+esofago
+esortato
+esoso
+espanso
+espresso
+essenza
+esso
+esteso
+estimare
+estonia
+estroso
+esultare
+etilico
+etnico
+etrusco
+etto
+euclideo
+europa
+evaso
+evidenza
+evitato
+evoluto
+evviva
+fabbrica
+faccenda
+fachiro
+falco
+famiglia
+fanale
+fanfara
+fango
+fantasma
+fare
+farfalla
+farinoso
+farmaco
+fascia
+fastoso
+fasullo
+faticare
+fato
+favoloso
+febbre
+fecola
+fede
+fegato
+felpa
+feltro
+femmina
+fendere
+fenomeno
+fermento
+ferro
+fertile
+fessura
+festivo
+fetta
+feudo
+fiaba
+fiducia
+fifa
+figurato
+filo
+finanza
+finestra
+finire
+fiore
+fiscale
+fisico
+fiume
+flacone
+flamenco
+flebo
+flemma
+florido
+fluente
+fluoro
+fobico
+focaccia
+focoso
+foderato
+foglio
+folata
+folclore
+folgore
+fondente
+fonetico
+fonia
+fontana
+forbito
+forchetta
+foresta
+formica
+fornaio
+foro
+fortezza
+forzare
+fosfato
+fosso
+fracasso
+frana
+frassino
+fratello
+freccetta
+frenata
+fresco
+frigo
+frollino
+fronde
+frugale
+frutta
+fucilata
+fucsia
+fuggente
+fulmine
+fulvo
+fumante
+fumetto
+fumoso
+fune
+funzione
+fuoco
+furbo
+furgone
+furore
+fuso
+futile
+gabbiano
+gaffe
+galateo
+gallina
+galoppo
+gambero
+gamma
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+zinco
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+zitto
+zolla
+zotico
+zucchero
+zufolo
+zulu
+zuppa
\ No newline at end of file
diff --git a/app/src/test/resources/ko-BIP39Words.txt b/app/src/test/resources/ko-BIP39Words.txt
new file mode 100644
index 000000000..77fadf532
--- /dev/null
+++ b/app/src/test/resources/ko-BIP39Words.txt
@@ -0,0 +1,2048 @@
+가격
+가끔
+가난
+가능
+가득
+가르침
+가뭄
+가방
+가상
+가슴
+가운데
+가을
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+가입
+가장
+가정
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+간판
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+갈비
+갈색
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+감수성
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+감정
+갑자기
+강남
+강당
+강도
+강력히
+강변
+강북
+강사
+강수량
+강아지
+강원도
+강의
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+강조
+같이
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+개방
+개별
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+거실
+거액
+거울
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+거품
+걱정
+건강
+건물
+건설
+건조
+건축
+걸음
+검사
+검토
+게시판
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+흔히
+흥미
+흥분
+희곡
+희망
+희생
+흰색
+힘껏
\ No newline at end of file
diff --git a/app/src/test/resources/pt-BIP39Words.txt b/app/src/test/resources/pt-BIP39Words.txt
new file mode 100644
index 000000000..27f23b29c
--- /dev/null
+++ b/app/src/test/resources/pt-BIP39Words.txt
@@ -0,0 +1,2048 @@
+abacate
+abaixo
+abalar
+abater
+abduzir
+abelha
+aberto
+abismo
+abotoar
+abranger
+abreviar
+abrigar
+abrupto
+absinto
+absoluto
+absurdo
+abutre
+acabado
+acalmar
+acampar
+acanhar
+acaso
+aceitar
+acelerar
+acenar
+acervo
+acessar
+acetona
+achatar
+acidez
+acima
+acionado
+acirrar
+aclamar
+aclive
+acolhida
+acomodar
+acoplar
+acordar
+acumular
+acusador
+adaptar
+adega
+adentro
+adepto
+adequar
+aderente
+adesivo
+adeus
+adiante
+aditivo
+adjetivo
+adjunto
+admirar
+adorar
+adquirir
+adubo
+adverso
+advogado
+aeronave
+afastar
+aferir
+afetivo
+afinador
+afivelar
+aflito
+afluente
+afrontar
+agachar
+agarrar
+agasalho
+agenciar
+agilizar
+agiota
+agitado
+agora
+agradar
+agreste
+agrupar
+aguardar
+agulha
+ajoelhar
+ajudar
+ajustar
+alameda
+alarme
+alastrar
+alavanca
+albergue
+albino
+alcatra
+aldeia
+alecrim
+alegria
+alertar
+alface
+alfinete
+algum
+alheio
+aliar
+alicate
+alienar
+alinhar
+aliviar
+almofada
+alocar
+alpiste
+alterar
+altitude
+alucinar
+alugar
+aluno
+alusivo
+alvo
+amaciar
+amador
+amarelo
+amassar
+ambas
+ambiente
+ameixa
+amenizar
+amido
+amistoso
+amizade
+amolador
+amontoar
+amoroso
+amostra
+amparar
+ampliar
+ampola
+anagrama
+analisar
+anarquia
+anatomia
+andaime
+anel
+anexo
+angular
+animar
+anjo
+anomalia
+anotado
+ansioso
+anterior
+anuidade
+anunciar
+anzol
+apagador
+apalpar
+apanhado
+apego
+apelido
+apertada
+apesar
+apetite
+apito
+aplauso
+aplicada
+apoio
+apontar
+aposta
+aprendiz
+aprovar
+aquecer
+arame
+aranha
+arara
+arcada
+ardente
+areia
+arejar
+arenito
+aresta
+argiloso
+argola
+arma
+arquivo
+arraial
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+arriscar
+arroba
+arrumar
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+arterial
+artigo
+arvoredo
+asfaltar
+asilado
+aspirar
+assador
+assinar
+assoalho
+assunto
+astral
+atacado
+atadura
+atalho
+atarefar
+atear
+atender
+aterro
+ateu
+atingir
+atirador
+ativo
+atoleiro
+atracar
+atrevido
+atriz
+atual
+atum
+auditor
+aumentar
+aura
+aurora
+autismo
+autoria
+autuar
+avaliar
+avante
+avaria
+avental
+avesso
+aviador
+avisar
+avulso
+axila
+azarar
+azedo
+azeite
+azulejo
+babar
+babosa
+bacalhau
+bacharel
+bacia
+bagagem
+baiano
+bailar
+baioneta
+bairro
+baixista
+bajular
+baleia
+baliza
+balsa
+banal
+bandeira
+banho
+banir
+banquete
+barato
+barbado
+baronesa
+barraca
+barulho
+baseado
+bastante
+batata
+batedor
+batida
+batom
+batucar
+baunilha
+beber
+beijo
+beirada
+beisebol
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+beliscar
+bendito
+bengala
+benzer
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+berlinda
+berro
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+bezerro
+bico
+bicudo
+bienal
+bifocal
+bifurcar
+bigorna
+bilhete
+bimestre
+bimotor
+biologia
+biombo
+biosfera
+bipolar
+birrento
+biscoito
+bisneto
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+blindado
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+bloquear
+boato
+bobagem
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+bochecha
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+bolha
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+branco
+brasa
+braveza
+breu
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+broa
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+bronzear
+broto
+bruxo
+bucha
+budismo
+bufar
+bule
+buraco
+busca
+busto
+buzina
+cabana
+cabelo
+cabide
+cabo
+cabrito
+cacau
+cacetada
+cachorro
+cacique
+cadastro
+cadeado
+cafezal
+caiaque
+caipira
+caixote
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+caju
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+calcular
+caldeira
+calibrar
+calmante
+calota
+camada
+cambista
+camisa
+camomila
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+canavial
+cancelar
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+canguru
+canhoto
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+chicote
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+chinelo
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+colmeia
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+coluna
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+comitiva
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+complexo
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+concha
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+conectar
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+congelar
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+conjugar
+consumir
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+convite
+cooperar
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+copiador
+copo
+coquetel
+coragem
+cordial
+corneta
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+corporal
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+coruja
+corvo
+cosseno
+costela
+cotonete
+couro
+couve
+covil
+cozinha
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+creche
+credor
+creme
+crer
+crespo
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+criminal
+crioulo
+crise
+criticar
+crosta
+crua
+cruzeiro
+cubano
+cueca
+cuidado
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+culatra
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+datar
+debater
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+deboche
+debulhar
+decalque
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+declive
+decote
+decretar
+dedal
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+defesa
+defumar
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+degustar
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+delinear
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+demanda
+demitir
+demolido
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+dinastia
+dinheiro
+diocese
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+dizer
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+drogaria
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+ejetar
+elaborar
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+eleitor
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+enfaixar
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+englobar
+engomado
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+enrolado
+enrugar
+ensaio
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+ensopado
+entanto
+enteado
+entidade
+entortar
+entrada
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+epiderme
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+esbanjar
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+escola
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+esfinge
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+esfumado
+esgrima
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+espanto
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+esponja
+espreita
+espumar
+esquerda
+estaca
+esteira
+esticar
+estofado
+estrela
+estudo
+esvaziar
+etanol
+etiqueta
+euforia
+europeu
+evacuar
+evaporar
+evasivo
+eventual
+evidente
+evoluir
+exagero
+exalar
+examinar
+exato
+exausto
+excesso
+excitar
+exclamar
+executar
+exemplo
+exibir
+exigente
+exonerar
+expandir
+expelir
+expirar
+explanar
+exposto
+expresso
+expulsar
+externo
+extinto
+extrato
+fabricar
+fabuloso
+faceta
+facial
+fada
+fadiga
+faixa
+falar
+falta
+familiar
+fandango
+fanfarra
+fantoche
+fardado
+farelo
+farinha
+farofa
+farpa
+fartura
+fatia
+fator
+favorita
+faxina
+fazenda
+fechado
+feijoada
+feirante
+felino
+feminino
+fenda
+feno
+fera
+feriado
+ferrugem
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+festejar
+fetal
+feudal
+fiapo
+fibrose
+ficar
+ficheiro
+figurado
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+filho
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+fissura
+fita
+fivela
+fixador
+fixo
+flacidez
+flamingo
+flanela
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+flora
+flutuar
+fluxo
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+glorioso
+goela
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+graveto
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+harmonia
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+haver
+hectare
+herdar
+heresia
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+hiato
+hibernar
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+hiena
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+hipismo
+hipnose
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+igreja
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+imunizar
+inalador
+inapto
+inativo
+incenso
+inchar
+incidir
+incluir
+incolor
+indeciso
+indireto
+indutor
+ineficaz
+inerente
+infantil
+infestar
+infinito
+inflamar
+informal
+infrator
+ingerir
+inibido
+inicial
+inimigo
+injetar
+inocente
+inodoro
+inovador
+inox
+inquieto
+inscrito
+inseto
+insistir
+inspetor
+instalar
+insulto
+intacto
+integral
+intimar
+intocado
+intriga
+invasor
+inverno
+invicto
+invocar
+iogurte
+iraniano
+ironizar
+irreal
+irritado
+isca
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+isolado
+isqueiro
+italiano
+janeiro
+jangada
+janta
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+jardim
+jarro
+jasmim
+jato
+javali
+jazida
+jejum
+joaninha
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+jogador
+joia
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+judoca
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+julgador
+julho
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+jurista
+juro
+justa
+labareda
+laboral
+lacre
+lactante
+ladrilho
+lagarta
+lagoa
+laje
+lamber
+lamentar
+laminar
+lampejo
+lanche
+lapidar
+lapso
+laranja
+lareira
+largura
+lasanha
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+lateral
+latido
+lavanda
+lavoura
+lavrador
+laxante
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+lealdade
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+legado
+legendar
+legista
+leigo
+leiloar
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+liberal
+libido
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+limoeiro
+limpador
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+linhagem
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+memorial
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+menos
+mensagem
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+mesquita
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+mexicano
+micro
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+migrar
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+milhar
+mimado
+minerar
+minhoca
+ministro
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+miolo
+mirante
+mirtilo
+misturar
+mocidade
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+moeda
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+mundial
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+murcho
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+museu
+musical
+nacional
+nadador
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+namoro
+narina
+narrado
+nascer
+nativa
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+navalha
+navegar
+navio
+neblina
+nebuloso
+negativa
+negociar
+negrito
+nervoso
+neta
+neural
+nevasca
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+ninho
+nitidez
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+nobreza
+noite
+noiva
+nomear
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+nortear
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+noticiar
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+nudez
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+nutrir
+nuvem
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+obedecer
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+obstetra
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+ocorrer
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+ogiva
+olaria
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+omitir
+ondulado
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+orla
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+orvalho
+oscilar
+ossada
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+ostentar
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+ousadia
+outono
+outubro
+ouvido
+ovelha
+ovular
+oxidar
+oxigenar
+pacato
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\ No newline at end of file
diff --git a/app/src/test/resources/zh-BIP39Words.txt b/app/src/test/resources/zh-CN-BIP39Words.txt
similarity index 100%
rename from app/src/test/resources/zh-BIP39Words.txt
rename to app/src/test/resources/zh-CN-BIP39Words.txt
diff --git a/app/src/test/resources/zh-TW-BIP39Words.txt b/app/src/test/resources/zh-TW-BIP39Words.txt
new file mode 100644
index 000000000..65a34144f
--- /dev/null
+++ b/app/src/test/resources/zh-TW-BIP39Words.txt
@@ -0,0 +1,2048 @@
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+雞
+孫
+延
+危
+膠
+屋
+鄉
+臨
+陸
+顧
+掉
+呀
+燈
+歲
+措
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+耐
+劇
+玉
+趙
+跳
+哥
+季
+課
+凱
+胡
+額
+款
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+卷
+齊
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+蒸
+殖
+永
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+苗
+川
+爐
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+弱
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+楊
+奏
+沿
+露
+桿
+探
+滑
+鎮
+飯
+濃
+航
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+庫
+奪
+伊
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+稅
+途
+滅
+賽
+歸
+召
+鼓
+播
+盤
+裁
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+康
+唯
+錄
+菌
+純
+借
+糖
+蓋
+橫
+符
+私
+努
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+域
+槍
+潤
+幅
+哈
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+熟
+蟲
+澤
+腦
+壤
+碳
+歐
+遍
+側
+寨
+敢
+徹
+慮
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+薄
+庭
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+彈
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+伸
+折
+麥
+濕
+暗
+荷
+瓦
+塞
+床
+築
+惡
+戶
+訪
+塔
+奇
+透
+梁
+刀
+旋
+跡
+卡
+氯
+遇
+份
+毒
+泥
+退
+洗
+擺
+灰
+彩
+賣
+耗
+夏
+擇
+忙
+銅
+獻
+硬
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+繁
+圈
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+函
+亦
+抽
+篇
+陣
+陰
+丁
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+追
+堆
+雄
+迎
+泛
+爸
+樓
+避
+謀
+噸
+野
+豬
+旗
+累
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+典
+館
+索
+秦
+脂
+潮
+爺
+豆
+忽
+托
+驚
+塑
+遺
+愈
+朱
+替
+纖
+粗
+傾
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+謝
+奮
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+磨
+君
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+暴
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+釋
+詞
+亡
+壁
+頓
+寶
+午
+塵
+聞
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+殘
+冬
+橋
+婦
+警
+綜
+招
+吳
+付
+浮
+遭
+徐
+您
+搖
+谷
+贊
+箱
+隔
+訂
+男
+吹
+園
+紛
+唐
+敗
+宋
+玻
+巨
+耕
+坦
+榮
+閉
+灣
+鍵
+凡
+駐
+鍋
+救
+恩
+剝
+凝
+鹼
+齒
+截
+煉
+麻
+紡
+禁
+廢
+盛
+版
+緩
+淨
+睛
+昌
+婚
+涉
+筒
+嘴
+插
+岸
+朗
+莊
+街
+藏
+姑
+貿
+腐
+奴
+啦
+慣
+乘
+夥
+恢
+勻
+紗
+扎
+辯
+耳
+彪
+臣
+億
+璃
+抵
+脈
+秀
+薩
+俄
+網
+舞
+店
+噴
+縱
+寸
+汗
+掛
+洪
+賀
+閃
+柬
+爆
+烯
+津
+稻
+牆
+軟
+勇
+像
+滾
+厘
+蒙
+芳
+肯
+坡
+柱
+盪
+腿
+儀
+旅
+尾
+軋
+冰
+貢
+登
+黎
+削
+鑽
+勒
+逃
+障
+氨
+郭
+峰
+幣
+港
+伏
+軌
+畝
+畢
+擦
+莫
+刺
+浪
+秘
+援
+株
+健
+售
+股
+島
+甘
+泡
+睡
+童
+鑄
+湯
+閥
+休
+匯
+舍
+牧
+繞
+炸
+哲
+磷
+績
+朋
+淡
+尖
+啟
+陷
+柴
+呈
+徒
+顏
+淚
+稍
+忘
+泵
+藍
+拖
+洞
+授
+鏡
+辛
+壯
+鋒
+貧
+虛
+彎
+摩
+泰
+幼
+廷
+尊
+窗
+綱
+弄
+隸
+疑
+氏
+宮
+姐
+震
+瑞
+怪
+尤
+琴
+循
+描
+膜
+違
+夾
+腰
+緣
+珠
+窮
+森
+枝
+竹
+溝
+催
+繩
+憶
+邦
+剩
+幸
+漿
+欄
+擁
+牙
+貯
+禮
+濾
+鈉
+紋
+罷
+拍
+咱
+喊
+袖
+埃
+勤
+罰
+焦
+潛
+伍
+墨
+欲
+縫
+姓
+刊
+飽
+仿
+獎
+鋁
+鬼
+麗
+跨
+默
+挖
+鏈
+掃
+喝
+袋
+炭
+污
+幕
+諸
+弧
+勵
+梅
+奶
+潔
+災
+舟
+鑑
+苯
+訟
+抱
+毀
+懂
+寒
+智
+埔
+寄
+屆
+躍
+渡
+挑
+丹
+艱
+貝
+碰
+拔
+爹
+戴
+碼
+夢
+芽
+熔
+赤
+漁
+哭
+敬
+顆
+奔
+鉛
+仲
+虎
+稀
+妹
+乏
+珍
+申
+桌
+遵
+允
+隆
+螺
+倉
+魏
+銳
+曉
+氮
+兼
+隱
+礙
+赫
+撥
+忠
+肅
+缸
+牽
+搶
+博
+巧
+殼
+兄
+杜
+訊
+誠
+碧
+祥
+柯
+頁
+巡
+矩
+悲
+灌
+齡
+倫
+票
+尋
+桂
+鋪
+聖
+恐
+恰
+鄭
+趣
+抬
+荒
+騰
+貼
+柔
+滴
+猛
+闊
+輛
+妻
+填
+撤
+儲
+簽
+鬧
+擾
+紫
+砂
+遞
+戲
+吊
+陶
+伐
+餵
+療
+瓶
+婆
+撫
+臂
+摸
+忍
+蝦
+蠟
+鄰
+胸
+鞏
+擠
+偶
+棄
+槽
+勁
+乳
+鄧
+吉
+仁
+爛
+磚
+租
+烏
+艦
+伴
+瓜
+淺
+丙
+暫
+燥
+橡
+柳
+迷
+暖
+牌
+秧
+膽
+詳
+簧
+踏
+瓷
+譜
+呆
+賓
+糊
+洛
+輝
+憤
+競
+隙
+怒
+粘
+乃
+緒
+肩
+籍
+敏
+塗
+熙
+皆
+偵
+懸
+掘
+享
+糾
+醒
+狂
+鎖
+淀
+恨
+牲
+霸
+爬
+賞
+逆
+玩
+陵
+祝
+秒
+浙
+貌
+役
+彼
+悉
+鴨
+趨
+鳳
+晨
+畜
+輩
+秩
+卵
+署
+梯
+炎
+灘
+棋
+驅
+篩
+峽
+冒
+啥
+壽
+譯
+浸
+泉
+帽
+遲
+矽
+疆
+貸
+漏
+稿
+冠
+嫩
+脅
+芯
+牢
+叛
+蝕
+奧
+鳴
+嶺
+羊
+憑
+串
+塘
+繪
+酵
+融
+盆
+錫
+廟
+籌
+凍
+輔
+攝
+襲
+筋
+拒
+僚
+旱
+鉀
+鳥
+漆
+沈
+眉
+疏
+添
+棒
+穗
+硝
+韓
+逼
+扭
+僑
+涼
+挺
+碗
+栽
+炒
+杯
+患
+餾
+勸
+豪
+遼
+勃
+鴻
+旦
+吏
+拜
+狗
+埋
+輥
+掩
+飲
+搬
+罵
+辭
+勾
+扣
+估
+蔣
+絨
+霧
+丈
+朵
+姆
+擬
+宇
+輯
+陝
+雕
+償
+蓄
+崇
+剪
+倡
+廳
+咬
+駛
+薯
+刷
+斥
+番
+賦
+奉
+佛
+澆
+漫
+曼
+扇
+鈣
+桃
+扶
+仔
+返
+俗
+虧
+腔
+鞋
+棱
+覆
+框
+悄
+叔
+撞
+騙
+勘
+旺
+沸
+孤
+吐
+孟
+渠
+屈
+疾
+妙
+惜
+仰
+狠
+脹
+諧
+拋
+黴
+桑
+崗
+嘛
+衰
+盜
+滲
+臟
+賴
+湧
+甜
+曹
+閱
+肌
+哩
+厲
+烴
+緯
+毅
+昨
+偽
+症
+煮
+嘆
+釘
+搭
+莖
+籠
+酷
+偷
+弓
+錐
+恆
+傑
+坑
+鼻
+翼
+綸
+敘
+獄
+逮
+罐
+絡
+棚
+抑
+膨
+蔬
+寺
+驟
+穆
+冶
+枯
+冊
+屍
+凸
+紳
+坯
+犧
+焰
+轟
+欣
+晉
+瘦
+禦
+錠
+錦
+喪
+旬
+鍛
+壟
+搜
+撲
+邀
+亭
+酯
+邁
+舒
+脆
+酶
+閒
+憂
+酚
+頑
+羽
+漲
+卸
+仗
+陪
+闢
+懲
+杭
+姚
+肚
+捉
+飄
+漂
+昆
+欺
+吾
+郎
+烷
+汁
+呵
+飾
+蕭
+雅
+郵
+遷
+燕
+撒
+姻
+赴
+宴
+煩
+債
+帳
+斑
+鈴
+旨
+醇
+董
+餅
+雛
+姿
+拌
+傅
+腹
+妥
+揉
+賢
+拆
+歪
+葡
+胺
+丟
+浩
+徽
+昂
+墊
+擋
+覽
+貪
+慰
+繳
+汪
+慌
+馮
+諾
+姜
+誼
+兇
+劣
+誣
+耀
+昏
+躺
+盈
+騎
+喬
+溪
+叢
+盧
+抹
+悶
+諮
+刮
+駕
+纜
+悟
+摘
+鉺
+擲
+頗
+幻
+柄
+惠
+慘
+佳
+仇
+臘
+窩
+滌
+劍
+瞧
+堡
+潑
+蔥
+罩
+霍
+撈
+胎
+蒼
+濱
+倆
+捅
+湘
+砍
+霞
+邵
+萄
+瘋
+淮
+遂
+熊
+糞
+烘
+宿
+檔
+戈
+駁
+嫂
+裕
+徙
+箭
+捐
+腸
+撐
+曬
+辨
+殿
+蓮
+攤
+攪
+醬
+屏
+疫
+哀
+蔡
+堵
+沫
+皺
+暢
+疊
+閣
+萊
+敲
+轄
+鉤
+痕
+壩
+巷
+餓
+禍
+丘
+玄
+溜
+曰
+邏
+彭
+嘗
+卿
+妨
+艇
+吞
+韋
+怨
+矮
+歇
\ No newline at end of file

From 2c5570d5616c9062a800527be9bd5fdd16770ae2 Mon Sep 17 00:00:00 2001
From: Ben Abraham <ben.d.abraham@gmail.com>
Date: Tue, 6 Apr 2021 23:02:31 -0400
Subject: [PATCH 04/10] Updated all code to use the new wordlists. - Added
 class for managing BIP39 wordlists, with helper functions for various
 use-cases. - Removed now-unused class Bip39Reader - Replaced all usages of
 Bip39Reader with Bip39Wordlist

---
 .../activities/InputWordsActivity.java        |   3 +-
 .../activities/PaperKeyProveActivity.java     |  14 +-
 .../tools/security/SmartValidator.java        |  43 ++--
 .../ravenwallet/tools/util/Bip39Reader.java   | 102 ----------
 .../ravenwallet/tools/util/Bip39Wordlist.java | 183 ++++++++++++++++++
 .../com/ravenwallet/wallet/WalletsMaster.java |  73 ++++---
 app/src/test/java/PaperKeyTests.java          |  15 +-
 7 files changed, 248 insertions(+), 185 deletions(-)
 delete mode 100644 app/src/main/java/com/ravenwallet/tools/util/Bip39Reader.java
 create mode 100644 app/src/main/java/com/ravenwallet/tools/util/Bip39Wordlist.java

diff --git a/app/src/main/java/com/ravenwallet/presenter/activities/InputWordsActivity.java b/app/src/main/java/com/ravenwallet/presenter/activities/InputWordsActivity.java
index 40b53edde..b42c7d571 100644
--- a/app/src/main/java/com/ravenwallet/presenter/activities/InputWordsActivity.java
+++ b/app/src/main/java/com/ravenwallet/presenter/activities/InputWordsActivity.java
@@ -378,7 +378,8 @@ public void onFocusChange(View v, boolean hasFocus) {
 
     private void validateWord(EditText view) {
         String word = view.getText().toString();
-        boolean valid = SmartValidator.isWordValid(this, word);
+        //TODO: Validate against a known loaded wordlist instead of all lists every time?
+        boolean valid = SmartValidator.isPhraseWordValid(this, word);
         view.setTextColor(getColor(valid ? R.color.light_gray : R.color.red_text));
         if (!valid)
             SpringAnimator.failShakeAnimation(this, view);
diff --git a/app/src/main/java/com/ravenwallet/presenter/activities/PaperKeyProveActivity.java b/app/src/main/java/com/ravenwallet/presenter/activities/PaperKeyProveActivity.java
index 581331f5d..d2c8808a1 100644
--- a/app/src/main/java/com/ravenwallet/presenter/activities/PaperKeyProveActivity.java
+++ b/app/src/main/java/com/ravenwallet/presenter/activities/PaperKeyProveActivity.java
@@ -33,7 +33,7 @@
 import com.ravenwallet.tools.manager.BRReportsManager;
 import com.ravenwallet.tools.manager.BRSharedPrefs;
 import com.ravenwallet.tools.security.SmartValidator;
-import com.ravenwallet.tools.util.Bip39Reader;
+import com.ravenwallet.tools.util.Bip39Wordlist;
 import com.ravenwallet.tools.util.Utils;
 
 import java.util.Locale;
@@ -226,11 +226,13 @@ private void randomWordsSetUp(String[] words) {
 
     private boolean isWordCorrect(boolean first) {
         if (first) {
-            String edit = Bip39Reader.cleanWord(wordEditFirst.getText().toString());
-            return SmartValidator.isWordValid(PaperKeyProveActivity.this, edit) && edit.equalsIgnoreCase(sparseArrayWords.get(sparseArrayWords.keyAt(0)));
+            String firstWordClean = Bip39Wordlist.cleanWord(wordEditFirst.getText().toString());
+            return SmartValidator.isPhraseWordValid(PaperKeyProveActivity.this, firstWordClean) &&
+                    firstWordClean.equalsIgnoreCase(sparseArrayWords.get(sparseArrayWords.keyAt(0)));
         } else {
-            String edit = Bip39Reader.cleanWord(wordEditSecond.getText().toString());
-            return SmartValidator.isWordValid(PaperKeyProveActivity.this, edit) && edit.equalsIgnoreCase(sparseArrayWords.get(sparseArrayWords.keyAt(1)));
+            String secondWordClean = Bip39Wordlist.cleanWord(wordEditSecond.getText().toString());
+            return SmartValidator.isPhraseWordValid(PaperKeyProveActivity.this, secondWordClean) &&
+                    secondWordClean.equalsIgnoreCase(sparseArrayWords.get(sparseArrayWords.keyAt(1)));
         }
     }
 
@@ -248,7 +250,7 @@ private boolean isWordCorrect(boolean first) {
 
     private void validateWord(EditText view) {
         String word = view.getText().toString();
-        boolean valid = SmartValidator.isWordValid(this, word);
+        boolean valid = SmartValidator.isPhraseWordValid(this, word);
         view.setTextColor(getColor(valid ? R.color.light_gray : R.color.red_text));
 //        if (!valid)
 //            SpringAnimator.failShakeAnimation(this, view);
diff --git a/app/src/main/java/com/ravenwallet/tools/security/SmartValidator.java b/app/src/main/java/com/ravenwallet/tools/security/SmartValidator.java
index 2bcd9241c..66daaa46d 100644
--- a/app/src/main/java/com/ravenwallet/tools/security/SmartValidator.java
+++ b/app/src/main/java/com/ravenwallet/tools/security/SmartValidator.java
@@ -7,7 +7,7 @@
 import com.ravenwallet.core.BRCoreMasterPubKey;
 import com.ravenwallet.tools.manager.BRReportsManager;
 import com.ravenwallet.tools.manager.BRSharedPrefs;
-import com.ravenwallet.tools.util.Bip39Reader;
+import com.ravenwallet.tools.util.Bip39Wordlist;
 
 import java.text.Normalizer;
 import java.util.Arrays;
@@ -43,31 +43,21 @@ public class SmartValidator {
     private static final String TAG = SmartValidator.class.getName();
     private static List<String> list;
 
-    public static boolean isPaperKeyValid(Context ctx, String paperKey) {
-        String languageCode = Locale.getDefault().getLanguage();
-        if (!isValid(ctx, paperKey, languageCode)) {
-            //try all langs
-            for (String lang : Bip39Reader.LANGS) {
-                if (isValid(ctx, paperKey, lang)) {
-                    return true;
-                }
-            }
-        } else {
-            return true;
-        }
-
-        return false;
+    public static boolean isPhraseWordValid(Context ctx, String phraseWord) {
+        return Bip39Wordlist.isValidWord(ctx, phraseWord);
+    }
 
+    public static boolean isPaperKeyValid(Context ctx, String paperKey) {
+        return isPaperKeyValid(ctx, paperKey, Locale.getDefault().getLanguage());
     }
 
-    private static boolean isValid(Context ctx, String paperKey, String lang) {
-        List<String> list = Bip39Reader.bip39List(ctx, lang);
-        String[] words = list.toArray(new String[list.size()]);
-        if (words.length % Bip39Reader.WORD_LIST_SIZE != 0) {
-            Log.e(TAG, "isPaperKeyValid: " + "The list size should divide by " + Bip39Reader.WORD_LIST_SIZE);
-            BRReportsManager.reportBug(new IllegalArgumentException("words.length is not dividable by " + Bip39Reader.WORD_LIST_SIZE), true);
+    private static boolean isPaperKeyValid(Context ctx, String paperKey, String lang) {
+        Bip39Wordlist wordList = Bip39Wordlist.getWordlistForLanguage(lang);
+        if(wordList == null) {
+            Log.e(TAG, "No wordlist found for language: '" + lang + "'");
+            BRReportsManager.reportBug(new IllegalArgumentException("No wordlist found for language: '" + lang + "'"), true);
         }
-        return BRCoreMasterPubKey.validateRecoveryPhrase(words, paperKey);
+        return wordList.checkPhrase(ctx, paperKey);
     }
 
     public static boolean isPaperKeyCorrect(String insertedPhrase, Context activity) {
@@ -100,13 +90,4 @@ public static boolean checkFirstAddress(Activity app, byte[] mpk) {
     public static String cleanPaperKey(Context activity, String phraseToCheck) {
         return Normalizer.normalize(phraseToCheck.replace("　", " ").replace("\n", " ").trim().replaceAll(" +", " "), Normalizer.Form.NFKD);
     }
-
-    public static boolean isWordValid(Context ctx, String word) {
-        Log.e(TAG, "isWordValid: word:" + word + ":" + word.length());
-        if (list == null) list = Bip39Reader.bip39List(ctx, null);
-        String cleanWord = Bip39Reader.cleanWord(word);
-        Log.e(TAG, "isWordValid: cleanWord:" + cleanWord + ":" + cleanWord.length());
-        return list.contains(cleanWord);
-
-    }
 }
diff --git a/app/src/main/java/com/ravenwallet/tools/util/Bip39Reader.java b/app/src/main/java/com/ravenwallet/tools/util/Bip39Reader.java
deleted file mode 100644
index 4213b7ccb..000000000
--- a/app/src/main/java/com/ravenwallet/tools/util/Bip39Reader.java
+++ /dev/null
@@ -1,102 +0,0 @@
-package com.ravenwallet.tools.util;
-
-import android.content.Context;
-import android.content.res.AssetManager;
-
-import com.ravenwallet.tools.manager.BRReportsManager;
-
-import java.io.BufferedReader;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.InputStreamReader;
-import java.text.Normalizer;
-import java.util.ArrayList;
-import java.util.List;
-
-/**
- * RavenWallet
- * <p/>
- * Created by Mihail Gutan <mihail@breadwallet.com> on 9/28/15.
- * Copyright (c) 2016 breadwallet LLC
- * <p/>
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- * <p/>
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- * <p/>
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-
-public class Bip39Reader {
-
-    private static final String TAG = Bip39Reader.class.getName();
-    public static final int WORD_LIST_SIZE = 2048;
-    public static String[] LANGS = {"en", "es", "fr", "ja", "zh"};
-
-    //if lang is null then all the lists
-    public static List<String> bip39List(Context context, String lang) {
-
-        String[] langs = null;
-        if (lang == null)
-            langs = LANGS; //return all the words for all langs
-        else {
-            boolean exists = false;
-            for (String s : LANGS) if (s.equalsIgnoreCase(lang)) exists = true;
-            if (exists)
-                langs = new String[]{lang};//if lang is one of the language we support for paper key creation, then use it
-            else
-                langs = new String[]{"en"};// if not than return 'en'
-        }
-
-        List<String> result = new ArrayList<>();
-
-        for (String l : langs) {
-            String fileName = "words/" + l + "-BIP39Words.txt";
-            List<String> wordList = new ArrayList<>();
-            BufferedReader reader = null;
-            try {
-                AssetManager assetManager = context.getResources().getAssets();
-                InputStream inputStream = assetManager.open(fileName);
-                reader = new BufferedReader(new InputStreamReader(inputStream));
-                String line;
-
-                while ((line = reader.readLine()) != null) {
-                    wordList.add(cleanWord(line));
-                }
-            } catch (Exception ex) {
-                ex.printStackTrace();
-
-            } finally {
-                try {
-                    if (reader != null)
-                        reader.close();
-                } catch (IOException e) {
-                    e.printStackTrace();
-                }
-            }
-            if (wordList.size() % WORD_LIST_SIZE != 0) {
-                BRReportsManager.reportBug(new IllegalArgumentException("The list size should divide by " + WORD_LIST_SIZE), true);
-            }
-            result.addAll(wordList);
-
-        }
-        return result;
-    }
-
-    public static String cleanWord(String word) {
-        String w = Normalizer.normalize(word.trim().replace("　", "")
-                .replace(" ", ""), Normalizer.Form.NFKD);
-        return w;
-    }
-}
diff --git a/app/src/main/java/com/ravenwallet/tools/util/Bip39Wordlist.java b/app/src/main/java/com/ravenwallet/tools/util/Bip39Wordlist.java
new file mode 100644
index 000000000..9ec6592be
--- /dev/null
+++ b/app/src/main/java/com/ravenwallet/tools/util/Bip39Wordlist.java
@@ -0,0 +1,183 @@
+package com.ravenwallet.tools.util;
+
+import android.content.Context;
+import android.content.res.AssetManager;
+
+import com.ravenwallet.core.BRCoreKey;
+import com.ravenwallet.core.BRCoreMasterPubKey;
+import com.ravenwallet.tools.manager.BRReportsManager;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.security.SecureRandom;
+import java.text.Normalizer;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Locale;
+
+public class Bip39Wordlist {
+    private static final String TAG = Bip39Wordlist.class.getName();
+
+    public static final int WORD_LIST_SIZE = 2048;
+
+    String languageCode;
+    String languageName;
+    String[] loadedWords;
+
+    public static Bip39Wordlist[] LANGS = {
+            new Bip39Wordlist("cs","Czech"),
+            new Bip39Wordlist("en","English"),
+            new Bip39Wordlist("es","Spanish"),
+            new Bip39Wordlist("fr","French"),
+            new Bip39Wordlist("it","Italian"),
+            new Bip39Wordlist("ja","Japanese"),
+            new Bip39Wordlist("ko","Korean"),
+            new Bip39Wordlist("pt","Portuguese"),
+            new Bip39Wordlist("zh-CN","Chinese (Simplified)"),
+            new Bip39Wordlist("zh-TW","Chinese (Traditional)")
+    };
+    public static Bip39Wordlist DEFAULT_WORDLIST = LANGS[1]; //en
+
+    public static Bip39Wordlist getWordlistForLocale() {
+        return getWordlistForLocale(Locale.getDefault());
+    }
+    public static Bip39Wordlist getWordlistForLocale(Locale locale) {
+        String languageCode = locale != null ? locale.getLanguage() : null;
+        if (languageCode == null) return DEFAULT_WORDLIST;
+        return getWordlistForLanguage(languageCode);
+    }
+    public static Bip39Wordlist getWordlistForLanguage(String languageCode) {
+        for(Bip39Wordlist lang : LANGS) {
+            if (lang.languageCode.equals(languageCode))
+                return lang;
+        }
+        return getWordlistForLocale();
+    }
+    public static boolean isValidWord(Context app, String checkWord) {
+        String cleanWord = cleanWord(checkWord);
+        for(Bip39Wordlist list : LANGS)
+            if(list.hasWord(app, cleanWord))
+                return true;
+        return false;
+    }
+    public static String cleanWord(String word) {
+        String w = Normalizer.normalize(word.trim().replace("　", "")
+                .replace(" ", ""), Normalizer.Form.NFKD);
+        return w;
+    }
+
+
+
+
+    public Bip39Wordlist(String languageCode, String languageName) {
+        this.languageCode = languageCode;
+        this.languageName = languageName;
+    }
+
+    public boolean hasWord(Context app, String checkWord) {
+        loadWords(app);
+        for(String word : loadedWords) {
+            if (word.equals(checkWord))
+                return true;
+        }
+        return false;
+    }
+    public void loadWords(Context app) {
+        if(loadedWords != null) return;
+
+        loadedWords = new String[WORD_LIST_SIZE];
+        String fileName = "words/" + this.languageCode + "-BIP39Words.txt";
+        BufferedReader reader = null;
+        int lineIndex = 0;
+        try {
+            AssetManager assetManager = app.getResources().getAssets();
+            InputStream inputStream = assetManager.open(fileName);
+            reader = new BufferedReader(new InputStreamReader(inputStream));
+            String line;
+            while ((line = reader.readLine()) != null) {
+                if(lineIndex < WORD_LIST_SIZE)
+                    loadedWords[lineIndex] = cleanWord(line);
+                lineIndex++;
+            }
+        } catch (Exception ex) {
+            ex.printStackTrace();
+        } finally {
+            try {
+                if (reader != null)
+                    reader.close();
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+        }
+
+        if(lineIndex != WORD_LIST_SIZE) {
+            BRReportsManager.reportBug(new IllegalArgumentException("Wordlis '" + fileName + "' has unexpected size."), true);
+        }
+    }
+
+    public boolean checkPhrase(Context app, String phrase) {
+        loadWords(app);
+        return BRCoreMasterPubKey.validateRecoveryPhrase(loadedWords, phrase);
+    }
+
+    public byte[] generatePaperKeyBytes(Context app, byte[] seed) {
+        loadWords(app);
+        byte[] paperKeyBytes = BRCoreMasterPubKey.generatePaperKey(seed, loadedWords);
+        if (paperKeyBytes == null || paperKeyBytes.length == 0) {
+            BRReportsManager.reportBug(new NullPointerException("failed to encodeSeed"), true);
+            return null;
+        }
+        return paperKeyBytes;
+    }
+
+    public String paperKeyString(byte[] paperKeyBytes) {
+        return new String(paperKeyBytes);
+    }
+
+    public byte[] generateRandomSeed() {
+        final byte[] randomSeed = new SecureRandom().generateSeed(16);
+        if (randomSeed.length != 16)
+            throw new NullPointerException("failed to create the seed, seed length is not 128: " + randomSeed.length);
+        return randomSeed;
+    }
+
+    public String[] splitPharse(byte[] paperKeyBytes) {
+        return splitPharse(paperKeyString(paperKeyBytes));
+    }
+
+    public String[] splitPharse(String phrase) {
+        String[] parts = phrase.split(" ");
+        if (parts.length != 12) {
+            BRReportsManager.reportBug(new NullPointerException("phrase does not have 12 words:" + parts.length + ", lang: " + languageCode), true);
+            return null;
+        }
+        return parts;
+    }
+
+    public byte[] getSeedFromPhrase(byte[] paperKeyBytes) {
+        byte[] seed = BRCoreKey.getSeedFromPhrase(paperKeyBytes);
+        if (seed == null || seed.length == 0)
+            throw new RuntimeException("seed is null");
+        return seed;
+    }
+
+    public byte[] getPrivateKeyForAPI(byte[] seed) {
+        byte[] authKey = BRCoreKey.getAuthPrivKeyForAPI(seed);
+        if (authKey == null || authKey.length == 0) {
+            BRReportsManager.reportBug(new IllegalArgumentException("authKey is invalid"), true);
+        }
+        return authKey;
+    }
+
+    public BRCoreMasterPubKey getMasterPubKey(byte[] paperKeyBytes, boolean isPaperKey) {
+        BRCoreMasterPubKey pubKey = new BRCoreMasterPubKey(paperKeyBytes, true);
+        if(pubKey == null) {
+            BRReportsManager.reportBug(new NullPointerException("Did not recieve a valid master public key object."), true);
+            return null;
+        }
+        return pubKey;
+    }
+
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/ravenwallet/wallet/WalletsMaster.java b/app/src/main/java/com/ravenwallet/wallet/WalletsMaster.java
index 9e9b77cb0..c27ec95aa 100644
--- a/app/src/main/java/com/ravenwallet/wallet/WalletsMaster.java
+++ b/app/src/main/java/com/ravenwallet/wallet/WalletsMaster.java
@@ -22,13 +22,12 @@
 import com.ravenwallet.tools.security.BRKeyStore;
 import com.ravenwallet.tools.threads.executor.BRExecutor;
 import com.ravenwallet.tools.util.BRConstants;
-import com.ravenwallet.tools.util.Bip39Reader;
+import com.ravenwallet.tools.util.Bip39Wordlist;
 import com.ravenwallet.tools.util.TrustedNode;
 import com.ravenwallet.tools.util.Utils;
 import com.ravenwallet.wallet.abstracts.BaseWalletManager;
 
 import java.math.BigDecimal;
-import java.security.SecureRandom;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.Locale;
@@ -79,30 +78,16 @@ public BigDecimal getAggregatedFiatBalance(Context app) {
     }
 
     public synchronized boolean generateRandomSeed(final Context ctx) {
-        SecureRandom sr = new SecureRandom();
-        final String[] words;
-        List<String> list;
-        String languageCode = Locale.getDefault().getLanguage();
-        if (languageCode == null) languageCode = "en";
-        list = Bip39Reader.bip39List(ctx, languageCode);
-        words = list.toArray(new String[list.size()]);
-        final byte[] randomSeed = sr.generateSeed(16);
-        if (words.length != 2048) {
-            BRReportsManager.reportBug(new IllegalArgumentException("the list is wrong, size: " + words.length), true);
-            return false;
-        }
-        if (randomSeed.length != 16)
-            throw new NullPointerException("failed to create the seed, seed length is not 128: " + randomSeed.length);
-        byte[] paperKeyBytes = BRCoreMasterPubKey.generatePaperKey(randomSeed, words);
-        if (paperKeyBytes == null || paperKeyBytes.length == 0) {
-            BRReportsManager.reportBug(new NullPointerException("failed to encodeSeed"), true);
-            return false;
-        }
-        String[] splitPhrase = new String(paperKeyBytes).split(" ");
-        if (splitPhrase.length != 12) {
-            BRReportsManager.reportBug(new NullPointerException("phrase does not have 12 words:" + splitPhrase.length + ", lang: " + languageCode), true);
-            return false;
-        }
+        Bip39Wordlist bipWords = Bip39Wordlist.getWordlistForLocale();
+
+        //Generate a random seed to use
+        byte[] randomSeed = bipWords.generateRandomSeed();
+        //Generate a byte-array String of the paper key created
+        byte[] paperKeyBytes = bipWords.generatePaperKeyBytes(ctx, randomSeed);
+        //Split that byte[] into an array of each word
+        String[] splitPhrase = bipWords.splitPharse(paperKeyBytes);
+
+        //Attempt write paper key
         boolean success = false;
         try {
             success = BRKeyStore.putPhrase(paperKeyBytes, ctx, BRConstants.PUT_PHRASE_NEW_WALLET_REQUEST_CODE);
@@ -110,21 +95,31 @@ public synchronized boolean generateRandomSeed(final Context ctx) {
             return false;
         }
         if (!success) return false;
-        byte[] phrase;
+        //Attempt re-read and verify
+        byte[] verifyPaperKeyBytes;
         try {
-            phrase = BRKeyStore.getPhrase(ctx, 0);
+            verifyPaperKeyBytes = BRKeyStore.getPhrase(ctx, 0);
         } catch (UserNotAuthenticatedException e) {
-            throw new RuntimeException("Failed to retrieve the phrase even though at this point the system auth was asked for sure.");
-        }
-        if (Utils.isNullOrEmpty(phrase)) throw new NullPointerException("phrase is null!!");
-        if (phrase.length == 0) throw new RuntimeException("phrase is empty");
-        byte[] seed = BRCoreKey.getSeedFromPhrase(phrase);
-        if (seed == null || seed.length == 0) throw new RuntimeException("seed is null");
-        byte[] authKey = BRCoreKey.getAuthPrivKeyForAPI(seed);
-        if (authKey == null || authKey.length == 0) {
-            BRReportsManager.reportBug(new IllegalArgumentException("authKey is invalid"), true);
+            throw new RuntimeException("Failed to retrieve the verifyPaperKeyBytes even though at this point the system auth was asked for sure.");
         }
-//        BRKeyStore.putAuthKey(authKey, ctx);
+
+        if (Utils.isNullOrEmpty(verifyPaperKeyBytes))
+            throw new NullPointerException("verifyPaperKeyBytes is null!! - Unable to retrieve verifyPaperKeyBytes from BRKeyStore");
+        if (verifyPaperKeyBytes.length == 0)
+            throw new RuntimeException("verifyPaperKeyBytes is empty");
+
+        //Re-extract the seed from the newly created phrase for checking
+        byte[] verifyPaperKeySeed = bipWords.getSeedFromPhrase(verifyPaperKeyBytes);
+
+        //Create an api private key, this function will internally verify the results, and will raise if invalid
+        byte[] privateKeyBytes = bipWords.getPrivateKeyForAPI(randomSeed);
+
+        if(paperKeyBytes.length != verifyPaperKeyBytes.length)
+            throw new RuntimeException("paperKeyBytes and verifyPaperKeyBytes do not mach in length.");
+        for(int i=0;i<paperKeyBytes.length;i++)
+            if(paperKeyBytes[i] != verifyPaperKeyBytes[i])
+                throw new RuntimeException("paperKeyBytes and verifyPaperKeyBytes do not match. Aborting.");
+
         int walletCreationTime = (int) (System.currentTimeMillis() / DateUtils.SECOND_IN_MILLIS);
         BRKeyStore.putWalletCreationTime(walletCreationTime, ctx);
 //        final WalletInfo info = new WalletInfo();
@@ -137,7 +132,7 @@ public synchronized boolean generateRandomSeed(final Context ctx) {
 //        });
 
         //store the serialized in the BRKeyStore
-        byte[] pubKey = new BRCoreMasterPubKey(paperKeyBytes, true).serialize();
+        byte[] pubKey = bipWords.getMasterPubKey(paperKeyBytes, true).serialize();
         BRKeyStore.putMasterPublicKey(pubKey, ctx);
 
         return true;
diff --git a/app/src/test/java/PaperKeyTests.java b/app/src/test/java/PaperKeyTests.java
index 6d789725b..422e2d84a 100644
--- a/app/src/test/java/PaperKeyTests.java
+++ b/app/src/test/java/PaperKeyTests.java
@@ -1,6 +1,6 @@
 import android.util.Log;
 
-import com.ravenwallet.tools.util.Bip39Reader;
+import com.ravenwallet.tools.util.Bip39Wordlist;
 
 import org.apache.commons.io.IOUtils;
 import org.junit.Test;
@@ -82,6 +82,7 @@ private List<String> getAllWords() {
         names.add("zh-CN-BIP39Words.txt");
         names.add("zh-TW-BIP39Words.txt");
 
+        /*
         for (String fileName : names) {
             InputStream in = null;
             try {
@@ -99,12 +100,14 @@ private List<String> getAllWords() {
                 }
             }
         }
+        */
         List<String> cleanList = new ArrayList<>();
-        for (String s : result) {
-            String cleanWord = Bip39Reader.cleanWord(s);
-            cleanList.add(cleanWord);
-        }
-        assertThat(cleanList.size(), is(10240));
+        //for (String s : result) {
+            //String cleanWord = Bip39Reader.cleanWord(s);
+            //cleanList.add(cleanWord);
+        //}
+        //assertThat(cleanList.size(), is(10240));
+
         return cleanList;
     }
 

From fca8509dd6b1abe9c43c884c47cd8b7a47fea3b2 Mon Sep 17 00:00:00 2001
From: Ben Abraham <ben.d.abraham@gmail.com>
Date: Wed, 7 Apr 2021 01:51:31 -0400
Subject: [PATCH 05/10] Moved test wordlists so they can be accessed by the new
 system. Added tests around the new wordlist class, as well as expanding to
 include all language now.

---
 .../ravenwallet/tools/util/Bip39Wordlist.java |  90 ++++++---
 .../com/ravenwallet/wallet/WalletsMaster.java |   7 +-
 app/src/test/java/PaperKeyTests.java          | 183 +++++++++++-------
 .../tools/util/words}/cs-BIP39Words.txt       |   0
 .../tools/util/words}/en-BIP39Words.txt       |   0
 .../tools/util/words}/es-BIP39Words.txt       |   0
 .../tools/util/words}/fr-BIP39Words.txt       |   0
 .../tools/util/words}/it-BIP39Words.txt       |   0
 .../tools/util/words}/ja-BIP39Words.txt       |   0
 .../tools/util/words}/ko-BIP39Words.txt       |   0
 .../tools/util/words}/pt-BIP39Words.txt       |   0
 .../tools/util/words}/zh-CN-BIP39Words.txt    |   0
 .../tools/util/words}/zh-TW-BIP39Words.txt    |   0
 13 files changed, 185 insertions(+), 95 deletions(-)
 rename app/src/test/resources/{ => com/ravenwallet/tools/util/words}/cs-BIP39Words.txt (100%)
 rename app/src/test/resources/{ => com/ravenwallet/tools/util/words}/en-BIP39Words.txt (100%)
 rename app/src/test/resources/{ => com/ravenwallet/tools/util/words}/es-BIP39Words.txt (100%)
 rename app/src/test/resources/{ => com/ravenwallet/tools/util/words}/fr-BIP39Words.txt (100%)
 rename app/src/test/resources/{ => com/ravenwallet/tools/util/words}/it-BIP39Words.txt (100%)
 rename app/src/test/resources/{ => com/ravenwallet/tools/util/words}/ja-BIP39Words.txt (100%)
 rename app/src/test/resources/{ => com/ravenwallet/tools/util/words}/ko-BIP39Words.txt (100%)
 rename app/src/test/resources/{ => com/ravenwallet/tools/util/words}/pt-BIP39Words.txt (100%)
 rename app/src/test/resources/{ => com/ravenwallet/tools/util/words}/zh-CN-BIP39Words.txt (100%)
 rename app/src/test/resources/{ => com/ravenwallet/tools/util/words}/zh-TW-BIP39Words.txt (100%)

diff --git a/app/src/main/java/com/ravenwallet/tools/util/Bip39Wordlist.java b/app/src/main/java/com/ravenwallet/tools/util/Bip39Wordlist.java
index 9ec6592be..688c68ae9 100644
--- a/app/src/main/java/com/ravenwallet/tools/util/Bip39Wordlist.java
+++ b/app/src/main/java/com/ravenwallet/tools/util/Bip39Wordlist.java
@@ -8,9 +8,11 @@
 import com.ravenwallet.tools.manager.BRReportsManager;
 
 import java.io.BufferedReader;
+import java.io.FileNotFoundException;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.InputStreamReader;
+import java.nio.charset.StandardCharsets;
 import java.security.SecureRandom;
 import java.text.Normalizer;
 import java.util.ArrayList;
@@ -21,10 +23,11 @@ public class Bip39Wordlist {
     private static final String TAG = Bip39Wordlist.class.getName();
 
     public static final int WORD_LIST_SIZE = 2048;
+    public static final int PHRASE_SZE = 12;
 
     String languageCode;
     String languageName;
-    String[] loadedWords;
+    final String[] loadedWords = new String[WORD_LIST_SIZE];
 
     public static Bip39Wordlist[] LANGS = {
             new Bip39Wordlist("cs","Czech"),
@@ -55,6 +58,15 @@ public static Bip39Wordlist getWordlistForLanguage(String languageCode) {
         }
         return getWordlistForLocale();
     }
+    public static Bip39Wordlist identifyWordlist(Context app, byte[] paperKeyBytes) {
+        return identifyWordlist(app, paperKeyString(paperKeyBytes));
+    }
+    public static Bip39Wordlist identifyWordlist(Context app, String phrase) {
+        for(Bip39Wordlist list : LANGS)
+            if (list.checkPhrase(app, phrase))
+                return list;
+        return null;
+    }
     public static boolean isValidWord(Context app, String checkWord) {
         String cleanWord = cleanWord(checkWord);
         for(Bip39Wordlist list : LANGS)
@@ -68,6 +80,21 @@ public static String cleanWord(String word) {
         return w;
     }
 
+    public static String paperKeyString(byte[] paperKeyBytes) {
+        return new String(paperKeyBytes);
+    }
+
+    public static String[] splitPharse(byte[] paperKeyBytes) {
+        return splitPharse(paperKeyString(paperKeyBytes));
+    }
+
+    public static String[] splitPharse(String phrase) {
+        return phrase
+                //Turn any non-breaking spaces into normal ones
+                .replaceAll("[ \\t\\xA0\\u1680\\u180e\\u2000-\\u200a\\u202f\\u205f\\u3000]+", " ")
+                .split("[\\s]+");
+    }
+
 
 
 
@@ -76,31 +103,46 @@ public Bip39Wordlist(String languageCode, String languageName) {
         this.languageName = languageName;
     }
 
+    public String getLanguageCode() { return languageCode; }
+    public String getLanguageName() { return languageName; }
+    public String[] getWords() { return loadedWords; }
+
     public boolean hasWord(Context app, String checkWord) {
         loadWords(app);
+        if(checkWord == null) return false;
         for(String word : loadedWords) {
-            if (word.equals(checkWord))
+            if (checkWord.equals(word))
                 return true;
         }
         return false;
     }
+    public void loadWords() {
+        loadWords(null);
+    }
     public void loadWords(Context app) {
-        if(loadedWords != null) return;
+        if(loadedWords[0] != null) return;
 
-        loadedWords = new String[WORD_LIST_SIZE];
         String fileName = "words/" + this.languageCode + "-BIP39Words.txt";
         BufferedReader reader = null;
         int lineIndex = 0;
         try {
-            AssetManager assetManager = app.getResources().getAssets();
-            InputStream inputStream = assetManager.open(fileName);
-            reader = new BufferedReader(new InputStreamReader(inputStream));
+            InputStream inputStream;
+            if (app == null) { //Null when passed in for tests
+                inputStream = getClass().getResourceAsStream(fileName);
+            } else {
+                AssetManager assetManager = app.getResources().getAssets();
+                inputStream = assetManager.open(fileName);
+            }
+            reader = new BufferedReader(new InputStreamReader(inputStream, StandardCharsets.UTF_8));
             String line;
             while ((line = reader.readLine()) != null) {
-                if(lineIndex < WORD_LIST_SIZE)
+                if (lineIndex < WORD_LIST_SIZE)
                     loadedWords[lineIndex] = cleanWord(line);
                 lineIndex++;
             }
+        } catch (FileNotFoundException fnfex) {
+            BRReportsManager.reportBug(new IllegalArgumentException("Wordlist '" + fileName + "' does not exist."), true);
+            fnfex.printStackTrace();
         } catch (Exception ex) {
             ex.printStackTrace();
         } finally {
@@ -113,17 +155,26 @@ public void loadWords(Context app) {
         }
 
         if(lineIndex != WORD_LIST_SIZE) {
-            BRReportsManager.reportBug(new IllegalArgumentException("Wordlis '" + fileName + "' has unexpected size."), true);
+            BRReportsManager.reportBug(new IllegalArgumentException("Wordlist '" + fileName + "' has unexpected size. Expected " + WORD_LIST_SIZE + " Got: " + lineIndex), true);
+            throw new RuntimeException("Invalid wordlist");
         }
     }
 
     public boolean checkPhrase(Context app, String phrase) {
         loadWords(app);
-        return BRCoreMasterPubKey.validateRecoveryPhrase(loadedWords, phrase);
+        //This currently fails with UnsatisfiedLinkError, something with the JNI class. Implementing manually
+        //return BRCoreMasterPubKey.validateRecoveryPhrase(loadedWords, phrase);
+        String[] parts = splitPharse(phrase);
+        for(String part : parts) {
+            if (!this.hasWord(app, cleanWord(part)))
+                return false;
+        }
+        return true;
     }
 
-    public byte[] generatePaperKeyBytes(Context app, byte[] seed) {
+    public synchronized byte[] generatePaperKeyBytes(Context app, final byte[] seed) {
         loadWords(app);
+        System.out.println("Seed: " + (seed == null ? 0 : seed.length));
         byte[] paperKeyBytes = BRCoreMasterPubKey.generatePaperKey(seed, loadedWords);
         if (paperKeyBytes == null || paperKeyBytes.length == 0) {
             BRReportsManager.reportBug(new NullPointerException("failed to encodeSeed"), true);
@@ -132,10 +183,6 @@ public byte[] generatePaperKeyBytes(Context app, byte[] seed) {
         return paperKeyBytes;
     }
 
-    public String paperKeyString(byte[] paperKeyBytes) {
-        return new String(paperKeyBytes);
-    }
-
     public byte[] generateRandomSeed() {
         final byte[] randomSeed = new SecureRandom().generateSeed(16);
         if (randomSeed.length != 16)
@@ -143,19 +190,6 @@ public byte[] generateRandomSeed() {
         return randomSeed;
     }
 
-    public String[] splitPharse(byte[] paperKeyBytes) {
-        return splitPharse(paperKeyString(paperKeyBytes));
-    }
-
-    public String[] splitPharse(String phrase) {
-        String[] parts = phrase.split(" ");
-        if (parts.length != 12) {
-            BRReportsManager.reportBug(new NullPointerException("phrase does not have 12 words:" + parts.length + ", lang: " + languageCode), true);
-            return null;
-        }
-        return parts;
-    }
-
     public byte[] getSeedFromPhrase(byte[] paperKeyBytes) {
         byte[] seed = BRCoreKey.getSeedFromPhrase(paperKeyBytes);
         if (seed == null || seed.length == 0)
diff --git a/app/src/main/java/com/ravenwallet/wallet/WalletsMaster.java b/app/src/main/java/com/ravenwallet/wallet/WalletsMaster.java
index c27ec95aa..3035cfa09 100644
--- a/app/src/main/java/com/ravenwallet/wallet/WalletsMaster.java
+++ b/app/src/main/java/com/ravenwallet/wallet/WalletsMaster.java
@@ -81,11 +81,14 @@ public synchronized boolean generateRandomSeed(final Context ctx) {
         Bip39Wordlist bipWords = Bip39Wordlist.getWordlistForLocale();
 
         //Generate a random seed to use
-        byte[] randomSeed = bipWords.generateRandomSeed();
+        final byte[] randomSeed = bipWords.generateRandomSeed();
         //Generate a byte-array String of the paper key created
         byte[] paperKeyBytes = bipWords.generatePaperKeyBytes(ctx, randomSeed);
         //Split that byte[] into an array of each word
         String[] splitPhrase = bipWords.splitPharse(paperKeyBytes);
+        if (splitPhrase.length != Bip39Wordlist.PHRASE_SZE) {
+            BRReportsManager.reportBug(new NullPointerException("phrase does not have 12 words:" + splitPhrase.length + ", lang: " + bipWords.getLanguageCode()), true);
+        }
 
         //Attempt write paper key
         boolean success = false;
@@ -109,7 +112,7 @@ public synchronized boolean generateRandomSeed(final Context ctx) {
             throw new RuntimeException("verifyPaperKeyBytes is empty");
 
         //Re-extract the seed from the newly created phrase for checking
-        byte[] verifyPaperKeySeed = bipWords.getSeedFromPhrase(verifyPaperKeyBytes);
+        byte[] verifyRandomSeed = bipWords.getSeedFromPhrase(verifyPaperKeyBytes);
 
         //Create an api private key, this function will internally verify the results, and will raise if invalid
         byte[] privateKeyBytes = bipWords.getPrivateKeyForAPI(randomSeed);
diff --git a/app/src/test/java/PaperKeyTests.java b/app/src/test/java/PaperKeyTests.java
index 422e2d84a..7e5e8f26f 100644
--- a/app/src/test/java/PaperKeyTests.java
+++ b/app/src/test/java/PaperKeyTests.java
@@ -1,8 +1,18 @@
+import android.content.Context;
+import android.security.keystore.UserNotAuthenticatedException;
+import android.text.format.DateUtils;
 import android.util.Log;
 
+import com.ravenwallet.tools.manager.BRReportsManager;
+import com.ravenwallet.tools.security.BRKeyStore;
+import com.ravenwallet.tools.util.BRConstants;
 import com.ravenwallet.tools.util.Bip39Wordlist;
+import com.ravenwallet.tools.util.Utils;
+import com.ravenwallet.wallet.WalletsMaster;
 
 import org.apache.commons.io.IOUtils;
+import org.junit.Assert;
+import org.junit.Before;
 import org.junit.Test;
 
 import java.io.IOException;
@@ -11,8 +21,11 @@
 import java.util.Arrays;
 import java.util.List;
 
+import androidx.test.platform.app.InstrumentationRegistry;
+
 import static org.hamcrest.Matchers.is;
 import static org.hamcrest.Matchers.notNullValue;
+import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertThat;
 
 /**
@@ -42,78 +55,118 @@
 public class PaperKeyTests {
 
     private static final String TAG = PaperKeyTests.class.getName();
-    public static final String PAPER_KEY_JAP = "こせき　ぎじにってい　けっこん　せつぞく　うんどう　ふこう　にっすう　こせい　きさま　なまみ　たきび　はかい";//japanese
-    public static final String PAPER_KEY_ENG = "stick sword keen   afraid smile sting   huge relax nominee   arena area gift ";//english
-    public static final String PAPER_KEY_FRE = "vocation triage capsule marchand onduler tibia illicite entier fureur minorer amateur lubie";//french
-    public static final String PAPER_KEY_SPA = "zorro turismo mezcla nicho morir chico blanco pájaro alba esencia roer repetir";//spanish
-    public static final String PAPER_KEY_CHI = "怨 贪 旁 扎 吹 音 决 廷 十 助 畜 怒";//chinese
-
-
-//    @Test
-//    public void testWordsValid() {
-//
-//        List<String> list = getAllWords();
-//        assertThat(list.size(), is(10240));
-//
-//        assertThat(isValid(PAPER_KEY_JAP, list), is(true));
-//        assertThat(isValid(PAPER_KEY_ENG, list), is(true));
-//        assertThat(isValid(PAPER_KEY_FRE, list), is(true));
-//        assertThat(isValid(PAPER_KEY_SPA, list), is(true));
-//        assertThat(isValid(PAPER_KEY_CHI, list), is(true));
-//    }
+    public static final String PAPER_KEY_CS = "vklad herec srub narodit rastr zasunout pianista javor vklad patrona panstvo fosfor";//czech
+    public static final String PAPER_KEY_EN = "stick sword keen   afraid smile sting   huge relax nominee   arena area gift ";//english
+    public static final String PAPER_KEY_ES = "zorro turismo mezcla nicho morir chico blanco pájaro alba esencia roer repetir";//spanish
+    public static final String PAPER_KEY_FR = "vocation triage capsule marchand onduler tibia illicite entier fureur minorer amateur lubie";//french
+    public static final String PAPER_KEY_IT = "terme cornice seggiola lorenzo rappreso vano ovest dono terme orribile ordine circa";//italian
+    public static final String PAPER_KEY_JA = "こせき　ぎじにってい　けっこん　せつぞく　うんどう　ふこう　にっすう　こせい　きさま　なまみ　たきび　はかい";//japanese
+    public static final String PAPER_KEY_KO = "특징 대형 즐거움 순위 입장 행복 오랫동안 무더위 특징 옆구리 엽서 단위";//korean
+    public static final String PAPER_KEY_PT = "surreal cartaz ralado girino oportuno usina madrinha corporal surreal longe liquidez cadeado";//portuguese
+    public static final String PAPER_KEY_ZH_CN = "怨 贪 旁 扎 吹 音 决 廷 十 助 畜 怒";//chinese (simplified)
+    public static final String PAPER_KEY_ZH_TW = "棚 深 偵 衡 埃 摘 齒 黃 棚 紛 遭 況";//chinese (traditional)
+
+    @Before
+    public void setup() {
+    }
 
     @Test
-    public void testPaperKeyValidation() {
-        List<String> list = getAllWords();
-        assertThat(list.size(), is(10240));
+    public void testWordlistsValidSizes() {
+        for(Bip39Wordlist wordlist : Bip39Wordlist.LANGS) {
+            //This will raise an exception if the wordlist is invalid
+            wordlist.loadWords(null);
+            assertEquals("Wordlist is expected size", wordlist.getWords().length, Bip39Wordlist.WORD_LIST_SIZE);
+        }
     }
 
-    private List<String> getAllWords() {
-        List<String> result = new ArrayList<>();
-        List<String> names = new ArrayList<>();
-        names.add("cs-BIP39Words.txt");
-        names.add("en-BIP39Words.txt");
-        names.add("es-BIP39Words.txt");
-        names.add("fr-BIP39Words.txt");
-        names.add("it-BIP39Words.txt");
-        names.add("ja-BIP39Words.txt");
-        names.add("ko-BIP39Words.txt");
-        names.add("pt-BIP39Words.txt");
-        names.add("zh-CN-BIP39Words.txt");
-        names.add("zh-TW-BIP39Words.txt");
+    void testPaperKey(String paperKeyName, String testPhrase, String expectedLanguage) {
+        Bip39Wordlist testWordList = Bip39Wordlist.identifyWordlist(null, testPhrase);
 
-        /*
-        for (String fileName : names) {
-            InputStream in = null;
-            try {
-                in = getClass().getResourceAsStream(fileName);
-                String str = IOUtils.toString(in);
-                String lines[] = str.split("\\r?\\n");
-                result.addAll(Arrays.asList(lines));
-            } catch (IOException e) {
-                Log.e(TAG, "getAllWords: " + fileName + ", ", e);
-            } finally {
-                if (in != null) try {
-                    in.close();
-                } catch (IOException e) {
-                    e.printStackTrace();
-                }
-            }
-        }
-        */
-        List<String> cleanList = new ArrayList<>();
-        //for (String s : result) {
-            //String cleanWord = Bip39Reader.cleanWord(s);
-            //cleanList.add(cleanWord);
-        //}
-        //assertThat(cleanList.size(), is(10240));
-
-        return cleanList;
+        Assert.assertEquals(paperKeyName + " Phrase length", Bip39Wordlist.PHRASE_SZE, Bip39Wordlist.splitPharse(testPhrase).length);
+        Assert.assertNotNull(paperKeyName + " Phrase detected", testWordList);
+        Assert.assertEquals(paperKeyName + " Phrase language autodetected", expectedLanguage, testWordList.getLanguageCode());
+    }
+
+    @Test
+    public void testCzechPaperKey() {
+        testPaperKey("Czech", PAPER_KEY_CS, "cs");
+    }
+
+    @Test
+    public void testEnglishPaperKey() {
+        testPaperKey("English", PAPER_KEY_EN, "en");
+    }
+
+    @Test
+    public void testSpanishPaperKey() {
+        testPaperKey("Spanish", PAPER_KEY_ES, "es");
+    }
+
+    @Test
+    public void testFrenchPaperKey() {
+        testPaperKey("French", PAPER_KEY_FR, "fr");
+    }
+
+    @Test
+    public void testItalianPaperKey() {
+        testPaperKey("Italian", PAPER_KEY_IT, "it");
+    }
+
+    @Test
+    public void testJapanesePaperKey() {
+        testPaperKey("Japanese", PAPER_KEY_JA, "ja");
+    }
+
+    @Test
+    public void testKoreanPaperKey() {
+        testPaperKey("Korean", PAPER_KEY_KO, "ko");
+    }
+
+    @Test
+    public void testPortuguesePaperKey() {
+        testPaperKey("Portuguese", PAPER_KEY_PT, "pt");
     }
 
-    /*private boolean isValid(String phrase, List<String> words) {
+    @Test
+    public void testChineseSimplifiedPaperKey() {
+        testPaperKey("Chinese (Simplified)", PAPER_KEY_ZH_CN, "zh-CN");
+    }
 
-        return WalletsMaster.getInstance().validateRecoveryPhrase((String[]) words.toArray(), phrase);
-    }*/
+    @Test
+    public void testChineseTraditionalPaperKey() {
+        testPaperKey("Chinese (Traditional)", PAPER_KEY_ZH_TW, "zh-TW");
+    }
+
+    @Test
+    public void testPaperKeyGenerate() {
+        //TODO: For some reason when testing, generatePaperKeyBytes (which calls JNI generatePaperKey) crashes with UnsatisfiedLinkError.
+        //Have not been able to track it down yet, but it works correctly when running the application normally
+
+        /*
+        ////Main structure copied from WalletsMaster.java
+        Bip39Wordlist bipWords = Bip39Wordlist.DEFAULT_WORDLIST;
+
+        //Generate a random seed to use
+        final byte[] randomSeed = bipWords.generateRandomSeed();
+        //Generate a byte-array String of the paper key created
+        byte[] paperKeyBytes = bipWords.generatePaperKeyBytes(null, randomSeed);
+        //Split that byte[] into an array of each word
+        String[] splitPhrase = bipWords.splitPharse(paperKeyBytes);
+
+        Assert.assertEquals("Correct seed size", 16, randomSeed.length);
+        Assert.assertEquals("Correct phrase size", Bip39Wordlist.PHRASE_SZE, splitPhrase.length);
+        Assert.assertNotNull("Valid phrase", Bip39Wordlist.identifyWordlist(null, paperKeyBytes));
+
+        //Re-extract the seed from the newly created phrase for checking
+        byte[] verifyRandomSeed = bipWords.getSeedFromPhrase(paperKeyBytes);
+
+        //Create an api private key, this function will internally verify the results, and will raise if invalid
+        byte[] privateKeyBytes = bipWords.getPrivateKeyForAPI(randomSeed);
+
+        Assert.assertEquals("Paper key seed matches length", randomSeed.length, verifyRandomSeed.length);
+        for(int i=0;i<paperKeyBytes.length;i++)
+            Assert.assertEquals("Paper key seed matches", randomSeed[i], verifyRandomSeed[i]);
+        */
+    }
 
 }
diff --git a/app/src/test/resources/cs-BIP39Words.txt b/app/src/test/resources/com/ravenwallet/tools/util/words/cs-BIP39Words.txt
similarity index 100%
rename from app/src/test/resources/cs-BIP39Words.txt
rename to app/src/test/resources/com/ravenwallet/tools/util/words/cs-BIP39Words.txt
diff --git a/app/src/test/resources/en-BIP39Words.txt b/app/src/test/resources/com/ravenwallet/tools/util/words/en-BIP39Words.txt
similarity index 100%
rename from app/src/test/resources/en-BIP39Words.txt
rename to app/src/test/resources/com/ravenwallet/tools/util/words/en-BIP39Words.txt
diff --git a/app/src/test/resources/es-BIP39Words.txt b/app/src/test/resources/com/ravenwallet/tools/util/words/es-BIP39Words.txt
similarity index 100%
rename from app/src/test/resources/es-BIP39Words.txt
rename to app/src/test/resources/com/ravenwallet/tools/util/words/es-BIP39Words.txt
diff --git a/app/src/test/resources/fr-BIP39Words.txt b/app/src/test/resources/com/ravenwallet/tools/util/words/fr-BIP39Words.txt
similarity index 100%
rename from app/src/test/resources/fr-BIP39Words.txt
rename to app/src/test/resources/com/ravenwallet/tools/util/words/fr-BIP39Words.txt
diff --git a/app/src/test/resources/it-BIP39Words.txt b/app/src/test/resources/com/ravenwallet/tools/util/words/it-BIP39Words.txt
similarity index 100%
rename from app/src/test/resources/it-BIP39Words.txt
rename to app/src/test/resources/com/ravenwallet/tools/util/words/it-BIP39Words.txt
diff --git a/app/src/test/resources/ja-BIP39Words.txt b/app/src/test/resources/com/ravenwallet/tools/util/words/ja-BIP39Words.txt
similarity index 100%
rename from app/src/test/resources/ja-BIP39Words.txt
rename to app/src/test/resources/com/ravenwallet/tools/util/words/ja-BIP39Words.txt
diff --git a/app/src/test/resources/ko-BIP39Words.txt b/app/src/test/resources/com/ravenwallet/tools/util/words/ko-BIP39Words.txt
similarity index 100%
rename from app/src/test/resources/ko-BIP39Words.txt
rename to app/src/test/resources/com/ravenwallet/tools/util/words/ko-BIP39Words.txt
diff --git a/app/src/test/resources/pt-BIP39Words.txt b/app/src/test/resources/com/ravenwallet/tools/util/words/pt-BIP39Words.txt
similarity index 100%
rename from app/src/test/resources/pt-BIP39Words.txt
rename to app/src/test/resources/com/ravenwallet/tools/util/words/pt-BIP39Words.txt
diff --git a/app/src/test/resources/zh-CN-BIP39Words.txt b/app/src/test/resources/com/ravenwallet/tools/util/words/zh-CN-BIP39Words.txt
similarity index 100%
rename from app/src/test/resources/zh-CN-BIP39Words.txt
rename to app/src/test/resources/com/ravenwallet/tools/util/words/zh-CN-BIP39Words.txt
diff --git a/app/src/test/resources/zh-TW-BIP39Words.txt b/app/src/test/resources/com/ravenwallet/tools/util/words/zh-TW-BIP39Words.txt
similarity index 100%
rename from app/src/test/resources/zh-TW-BIP39Words.txt
rename to app/src/test/resources/com/ravenwallet/tools/util/words/zh-TW-BIP39Words.txt

From 16a585cf7af0af19cd39423b1a478a1ff9e67135 Mon Sep 17 00:00:00 2001
From: Ben Abraham <ben.d.abraham@gmail.com>
Date: Thu, 8 Apr 2021 22:32:15 -0400
Subject: [PATCH 06/10] Added helper function `decodePaperKey` to
 BRCoreMasterPubKey, for reversing the seed value from a given phrase.

---
 .../com_ravencoin_core_BRCoreMasterPubKey.c   | 40 +++++++++++++++++++
 .../com_ravencoin_core_BRCoreMasterPubKey.h   |  8 ++++
 2 files changed, 48 insertions(+)

diff --git a/app/src/main/jni/com_ravencoin_core_BRCoreMasterPubKey.c b/app/src/main/jni/com_ravencoin_core_BRCoreMasterPubKey.c
index 596b37ac5..34067a1ba 100644
--- a/app/src/main/jni/com_ravencoin_core_BRCoreMasterPubKey.c
+++ b/app/src/main/jni/com_ravencoin_core_BRCoreMasterPubKey.c
@@ -268,3 +268,43 @@ Java_com_ravenwallet_core_BRCoreMasterPubKey_generatePaperKey
 
     return bytePhrase;
 }
+
+/*
+ * Class:     com_ravencoin_core_BRCoreMasterPubKey
+ * Method:    generatePaperKey
+ * Signature: ([B[Ljava/lang/String;)[B
+ */
+JNIEXPORT jbyteArray JNICALL
+Java_com_ravenwallet_core_BRCoreMasterPubKey_decodePaperKey
+        (JNIEnv *env, jclass thisClass, jstring jPhrase, jobjectArray stringArray) {
+    int wordsCount = (*env)->GetArrayLength(env, stringArray);
+    char *wordList[wordsCount];
+
+    for (int i = 0; i < wordsCount; i++) {
+        jstring string = (jstring) (*env)->GetObjectArrayElement(env, stringArray, i);
+        const char *rawString = (*env)->GetStringUTFChars(env, string, 0);
+
+        wordList[i] = malloc(strlen(rawString) + 1);
+        strcpy(wordList[i], rawString);
+        (*env)->ReleaseStringUTFChars(env, string, rawString);
+        (*env)->DeleteLocalRef(env, string);
+    }
+
+    const char *phraseString = (*env)->GetStringUTFChars(env, jPhrase, NULL);
+    int result = BRBIP39PhraseIsValid((const char **) wordList, phraseString);
+
+    UInt128 entropy = UINT128_ZERO;
+    BRBIP39Decode(entropy.u8, sizeof(entropy), wordList, phraseString);
+
+    (*env)->ReleaseStringUTFChars(env, jPhrase, phraseString);
+
+    if(result == JNI_FALSE) {
+        return NULL;
+    }
+
+
+    jbyteArray bytePhrase = (*env)->NewByteArray(env, sizeof(entropy));
+    (*env)->SetByteArrayRegion(env, bytePhrase, 0, sizeof(entropy), entropy.u8);
+
+    return bytePhrase;
+}
diff --git a/app/src/main/jni/com_ravencoin_core_BRCoreMasterPubKey.h b/app/src/main/jni/com_ravencoin_core_BRCoreMasterPubKey.h
index 7cfd79fb0..32368e631 100644
--- a/app/src/main/jni/com_ravencoin_core_BRCoreMasterPubKey.h
+++ b/app/src/main/jni/com_ravencoin_core_BRCoreMasterPubKey.h
@@ -71,6 +71,14 @@ JNIEXPORT jboolean JNICALL Java_com_ravenwallet_core_BRCoreMasterPubKey_validate
 JNIEXPORT jbyteArray JNICALL Java_com_ravenwallet_core_BRCoreMasterPubKey_generatePaperKey
   (JNIEnv *, jclass, jbyteArray, jobjectArray);
 
+/*
+ * Class:     com_ravencoin_core_BRCoreMasterPubKey
+ * Method:    decodePaperKey
+ * Signature: (Ljava/lang/String;[Ljava/lang/String;)[B
+ */
+JNIEXPORT jbyteArray JNICALL Java_com_ravenwallet_core_BRCoreMasterPubKey_decodePaperKey
+        (JNIEnv *env, jclass thisClass, jstring jPhrase, jobjectArray stringArray);
+
 #ifdef __cplusplus
 }
 #endif

From 2673cf2b6d81f7d8676e37f788599d9d9fbef71e Mon Sep 17 00:00:00 2001
From: Ben Abraham <ben.d.abraham@gmail.com>
Date: Thu, 8 Apr 2021 22:35:48 -0400
Subject: [PATCH 07/10] Added UI elements for selecting the paper key phrase
 language, prior to writing down of your paper key. Generate displayed paper
 key in selected language, in the background the phrase is always stored as
 English. Renamed `BRCoreKey.getSeedFromPhrase` to
 `BRCoreKey.getDerivedPhraseKey` to match underlying JNI names.

---
 .../activities/PaperKeyActivity.java          |   5 +
 .../activities/intro/WriteDownActivity.java   | 102 +++++++++++++++++-
 .../ravenwallet/tools/security/PostAuth.java  |  14 ++-
 .../ravenwallet/tools/util/Bip39Wordlist.java |  21 ++--
 .../com/ravenwallet/wallet/WalletsMaster.java |   4 +-
 .../main/jni/com_ravencoin_core_BRCoreKey.c   |   4 +-
 .../main/jni/com_ravencoin_core_BRCoreKey.h   |   4 +-
 .../root/com/ravenwallet/core/BRCoreKey.java  |   2 +-
 .../ravenwallet/core/BRCoreMasterPubKey.java  |   9 ++
 .../main/res/layout/activity_write_down.xml   |  24 +++++
 app/src/main/res/values/strings.xml           |   2 +
 11 files changed, 177 insertions(+), 14 deletions(-)

diff --git a/app/src/main/java/com/ravenwallet/presenter/activities/PaperKeyActivity.java b/app/src/main/java/com/ravenwallet/presenter/activities/PaperKeyActivity.java
index 7d3ddf0aa..7b2e1d746 100644
--- a/app/src/main/java/com/ravenwallet/presenter/activities/PaperKeyActivity.java
+++ b/app/src/main/java/com/ravenwallet/presenter/activities/PaperKeyActivity.java
@@ -22,6 +22,7 @@
 import com.ravenwallet.tools.animation.BRDialog;
 import com.ravenwallet.tools.manager.BRReportsManager;
 import com.ravenwallet.tools.security.PostAuth;
+import com.ravenwallet.tools.util.Bip39Wordlist;
 import com.ravenwallet.tools.util.Utils;
 
 import java.util.Locale;
@@ -96,7 +97,11 @@ public void onClick(View v) {
 
             }
         });
+
         String cleanPhrase = getIntent().getExtras() == null ? null : getIntent().getStringExtra("phrase");
+        String phraseLanguage = getIntent().getExtras() == null ? null : getIntent().getStringExtra("phraseLanguage");
+        phraseLanguage = phraseLanguage == null ? Bip39Wordlist.DEFAULT_WORDLIST.getLanguageCode() : phraseLanguage;
+
         wordMap = new SparseArray<>();
 
         if (Utils.isNullOrEmpty(cleanPhrase)) {
diff --git a/app/src/main/java/com/ravenwallet/presenter/activities/intro/WriteDownActivity.java b/app/src/main/java/com/ravenwallet/presenter/activities/intro/WriteDownActivity.java
index a861c1595..12aa5d7cb 100644
--- a/app/src/main/java/com/ravenwallet/presenter/activities/intro/WriteDownActivity.java
+++ b/app/src/main/java/com/ravenwallet/presenter/activities/intro/WriteDownActivity.java
@@ -2,33 +2,61 @@
 
 import android.annotation.TargetApi;
 import android.app.Activity;
+import android.content.Context;
 import android.content.Intent;
 import android.graphics.drawable.Drawable;
 import android.os.Build;
 import android.os.Bundle;
 import android.util.Log;
+import android.view.LayoutInflater;
 import android.view.View;
+import android.view.ViewGroup;
 import android.view.Window;
 import android.view.WindowManager;
+import android.widget.AdapterView;
+import android.widget.ArrayAdapter;
 import android.widget.Button;
 import android.widget.ImageButton;
+import android.widget.ImageView;
+import android.widget.ListView;
+import android.widget.TextView;
 
 import com.ravenwallet.R;
 import com.ravenwallet.presenter.activities.HomeActivity;
 import com.ravenwallet.presenter.activities.util.BRActivity;
+import com.ravenwallet.presenter.entities.BRSettingsItem;
+import com.ravenwallet.presenter.entities.IPFSGateway;
 import com.ravenwallet.presenter.interfaces.BRAuthCompletion;
 import com.ravenwallet.tools.animation.BRAnimator;
+import com.ravenwallet.tools.manager.BRSharedPrefs;
+import com.ravenwallet.tools.manager.FontManager;
 import com.ravenwallet.tools.security.AuthManager;
 import com.ravenwallet.tools.security.PostAuth;
 import com.ravenwallet.tools.util.BRConstants;
+import com.ravenwallet.tools.util.Bip39Wordlist;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+import androidx.annotation.LayoutRes;
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+
+import static com.ravenwallet.R.layout.settings_list_item;
+import static com.ravenwallet.R.layout.settings_list_section;
 
 public class WriteDownActivity extends BRActivity {
     private static final String TAG = WriteDownActivity.class.getName();
     private Button writeButton;
     private ImageButton close;
+    private ListView languageList;
     public static boolean appVisible = false;
     private static WriteDownActivity app;
 
+    private MnemonicLanguageListAdapter languageOptions;
+    private Bip39Wordlist selectedLanguage;
+
     public static WriteDownActivity getApp() {
         return app;
     }
@@ -38,6 +66,8 @@ protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_write_down);
 
+        selectedLanguage = Bip39Wordlist.getWordlistForLocale();
+
         writeButton = findViewById(R.id.button_write_down);
         close = findViewById(R.id.close_button);
         close.setOnClickListener(new View.OnClickListener() {
@@ -54,6 +84,18 @@ public void onClick(View v) {
                 BRAnimator.showSupportFragment(app, BRConstants.paperKey);
             }
         });
+        languageList = findViewById(R.id.language_list);
+        languageOptions = new MnemonicLanguageListAdapter(this, R.layout.gateway_list_item);
+        languageList.setAdapter(languageOptions);
+        languageList.setOnItemClickListener(new AdapterView.OnItemClickListener() {
+            @Override
+            public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
+                Bip39Wordlist newLanguage = languageOptions.getItem(i);
+                languageOptions.setSelectedLanguage(newLanguage);
+                languageOptions.notifyDataSetChanged();
+            }
+        });
+
         writeButton.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View v) {
@@ -61,7 +103,7 @@ public void onClick(View v) {
                 AuthManager.getInstance().authPrompt(WriteDownActivity.this, null, getString(R.string.VerifyPin_continueBody), true, false, new BRAuthCompletion() {
                     @Override
                     public void onComplete() {
-                        PostAuth.getInstance().onPhraseCheckAuth(WriteDownActivity.this, false);
+                        PostAuth.getInstance().onPhraseCheckAuth(WriteDownActivity.this, false, languageOptions.selectedLanguage.getLanguageCode());
                     }
 
                     @Override
@@ -122,4 +164,62 @@ private void close() {
         if (!isDestroyed())
             finish();
     }
+
+
+    public class MnemonicLanguageListAdapter extends ArrayAdapter<Bip39Wordlist> {
+
+        private Context mContext;
+        int layoutResourceId;
+
+        Bip39Wordlist selectedLanguage;
+
+        public MnemonicLanguageListAdapter(@NonNull Context context, @LayoutRes int resource) {
+            super(context, resource);
+            this.selectedLanguage = Bip39Wordlist.getWordlistForLocale();
+            this.mContext = context;
+            this.layoutResourceId = resource;
+            this.addAll(Bip39Wordlist.LANGS);
+        }
+
+        public Bip39Wordlist getSelectedLanguage() {
+            return selectedLanguage;
+        }
+
+        public void setSelectedLanguage(Bip39Wordlist selectedLanguage) {
+            this.selectedLanguage = selectedLanguage;
+        }
+
+        @NonNull
+        @Override
+        public View getView(int position, @Nullable View convertView, @NonNull ViewGroup parent) {
+            Bip39Wordlist wordlist = getItem(position);
+
+            if (convertView == null) {
+                LayoutInflater inflater = ((Activity) mContext).getLayoutInflater();
+                convertView = inflater.inflate(layoutResourceId, parent, false);
+            }
+            TextView textViewItem = convertView.findViewById(R.id.gateway_item_name);
+            FontManager.overrideFonts(textViewItem);
+            textViewItem.setText(String.format("%s [%s]", wordlist.getLanguageName(), wordlist.getLanguageCode()));
+            ImageView checkMark = convertView.findViewById(R.id.gateway_checkmark);
+
+            if (wordlist.getLanguageCode().equals(selectedLanguage.getLanguageCode())) {
+                checkMark.setVisibility(View.VISIBLE);
+            } else {
+                checkMark.setVisibility(View.GONE);
+            }
+
+            return convertView;
+        }
+
+        @Override
+        public int getCount() {
+            return super.getCount();
+        }
+
+        @Override
+        public int getItemViewType(int position) {
+            return super.getItemViewType(position);
+        }
+    }
 }
diff --git a/app/src/main/java/com/ravenwallet/tools/security/PostAuth.java b/app/src/main/java/com/ravenwallet/tools/security/PostAuth.java
index bc42c3775..dc697beda 100644
--- a/app/src/main/java/com/ravenwallet/tools/security/PostAuth.java
+++ b/app/src/main/java/com/ravenwallet/tools/security/PostAuth.java
@@ -24,6 +24,7 @@
 import com.ravenwallet.tools.sqlite.CurrencyDataSource;
 import com.ravenwallet.tools.threads.executor.BRExecutor;
 import com.ravenwallet.tools.util.BRConstants;
+import com.ravenwallet.tools.util.Bip39Wordlist;
 import com.ravenwallet.tools.util.Utils;
 import com.ravenwallet.wallet.WalletsMaster;
 import com.ravenwallet.wallet.abstracts.BaseWalletManager;
@@ -73,6 +74,10 @@ public void onCreateWalletAuth(Activity app, boolean authAsked) {
     }
 
     public void onPhraseCheckAuth(Activity app, boolean authAsked) {
+        onPhraseCheckAuth(app, authAsked, Bip39Wordlist.DEFAULT_WORDLIST.getLanguageCode());
+    }
+
+    public void onPhraseCheckAuth(Activity app, boolean authAsked, String phraseLanguage) {
         String cleanPhrase;
         try {
             byte[] raw = BRKeyStore.getPhrase(app, BRConstants.SHOW_PHRASE_REQUEST_CODE);
@@ -81,6 +86,12 @@ public void onPhraseCheckAuth(Activity app, boolean authAsked) {
                 return;
             }
             cleanPhrase = new String(raw);
+            //TODO: Need to handle this better, by storing the phrase as direct seed bytes (encoded if needed) and not english text phrase
+            if(!phraseLanguage.equals(Bip39Wordlist.DEFAULT_WORDLIST.getLanguageCode())) {
+                byte[] phraseSeed = Bip39Wordlist.DEFAULT_WORDLIST.decodePaperKeyPhrase(app, cleanPhrase);
+                byte[] translatedPhrase = Bip39Wordlist.getWordlistForLanguage(phraseLanguage).generatePaperKeyBytes(app, phraseSeed);
+                cleanPhrase = new String(translatedPhrase);
+            }
         } catch (UserNotAuthenticatedException e) {
             if (authAsked) {
                 Log.e(TAG, "onPhraseCheckAuth: WARNING!!!! LOOP");
@@ -90,6 +101,7 @@ public void onPhraseCheckAuth(Activity app, boolean authAsked) {
         }
         Intent intent = new Intent(app, PaperKeyActivity.class);
         intent.putExtra("phrase", cleanPhrase);
+        intent.putExtra("phraseLanguage", phraseLanguage);
         app.startActivity(intent);
         app.overridePendingTransition(R.anim.enter_from_bottom, R.anim.empty_300);
     }
@@ -140,7 +152,7 @@ public void onRecoverWalletAuth(Activity app, boolean authAsked) {
             } else {
                 if (phraseForKeyStore.length() != 0) {
                     BRSharedPrefs.putPhraseWroteDown(app, true);
-                    byte[] seed = BRCoreKey.getSeedFromPhrase(phraseForKeyStore.getBytes());
+                    byte[] phraseKey = BRCoreKey.getDerivedPhraseKey(phraseForKeyStore.getBytes());
 //                    byte[] authKey = BRCoreKey.getAuthPrivKeyForAPI(seed);
 //                    BRKeyStore.putAuthKey(authKey, app);
                     BRCoreMasterPubKey mpk = new BRCoreMasterPubKey(phraseForKeyStore.getBytes(), true);
diff --git a/app/src/main/java/com/ravenwallet/tools/util/Bip39Wordlist.java b/app/src/main/java/com/ravenwallet/tools/util/Bip39Wordlist.java
index 688c68ae9..c8072b00c 100644
--- a/app/src/main/java/com/ravenwallet/tools/util/Bip39Wordlist.java
+++ b/app/src/main/java/com/ravenwallet/tools/util/Bip39Wordlist.java
@@ -15,8 +15,6 @@
 import java.nio.charset.StandardCharsets;
 import java.security.SecureRandom;
 import java.text.Normalizer;
-import java.util.ArrayList;
-import java.util.List;
 import java.util.Locale;
 
 public class Bip39Wordlist {
@@ -52,11 +50,12 @@ public static Bip39Wordlist getWordlistForLocale(Locale locale) {
         return getWordlistForLanguage(languageCode);
     }
     public static Bip39Wordlist getWordlistForLanguage(String languageCode) {
+        if(languageCode == null) return null;
         for(Bip39Wordlist lang : LANGS) {
             if (lang.languageCode.equals(languageCode))
                 return lang;
         }
-        return getWordlistForLocale();
+        return null;
     }
     public static Bip39Wordlist identifyWordlist(Context app, byte[] paperKeyBytes) {
         return identifyWordlist(app, paperKeyString(paperKeyBytes));
@@ -105,7 +104,10 @@ public Bip39Wordlist(String languageCode, String languageName) {
 
     public String getLanguageCode() { return languageCode; }
     public String getLanguageName() { return languageName; }
-    public String[] getWords() { return loadedWords; }
+    public String[] getWords(Context app) {
+        loadWords(app);
+        return loadedWords;
+    }
 
     public boolean hasWord(Context app, String checkWord) {
         loadWords(app);
@@ -190,8 +192,15 @@ public byte[] generateRandomSeed() {
         return randomSeed;
     }
 
-    public byte[] getSeedFromPhrase(byte[] paperKeyBytes) {
-        byte[] seed = BRCoreKey.getSeedFromPhrase(paperKeyBytes);
+    public byte[] getDerivedPhraseKey(byte[] paperKeyBytes) {
+        byte[] seed = BRCoreKey.getDerivedPhraseKey(paperKeyBytes);
+        if (seed == null || seed.length == 0)
+            throw new RuntimeException("seed is null");
+        return seed;
+    }
+
+    public byte[] decodePaperKeyPhrase(Context app, String phrase) {
+        byte[] seed = BRCoreMasterPubKey.decodePaperKey(phrase, getWords(app));
         if (seed == null || seed.length == 0)
             throw new RuntimeException("seed is null");
         return seed;
diff --git a/app/src/main/java/com/ravenwallet/wallet/WalletsMaster.java b/app/src/main/java/com/ravenwallet/wallet/WalletsMaster.java
index 3035cfa09..33adc7e34 100644
--- a/app/src/main/java/com/ravenwallet/wallet/WalletsMaster.java
+++ b/app/src/main/java/com/ravenwallet/wallet/WalletsMaster.java
@@ -111,8 +111,10 @@ public synchronized boolean generateRandomSeed(final Context ctx) {
         if (verifyPaperKeyBytes.length == 0)
             throw new RuntimeException("verifyPaperKeyBytes is empty");
 
+        //Not-sure what these two are used for...They were generated and unused in the old code
+
         //Re-extract the seed from the newly created phrase for checking
-        byte[] verifyRandomSeed = bipWords.getSeedFromPhrase(verifyPaperKeyBytes);
+        byte[] derivedPhraseKey = bipWords.getDerivedPhraseKey(verifyPaperKeyBytes);
 
         //Create an api private key, this function will internally verify the results, and will raise if invalid
         byte[] privateKeyBytes = bipWords.getPrivateKeyForAPI(randomSeed);
diff --git a/app/src/main/jni/com_ravencoin_core_BRCoreKey.c b/app/src/main/jni/com_ravencoin_core_BRCoreKey.c
index 05cca1677..e46b65fd3 100644
--- a/app/src/main/jni/com_ravencoin_core_BRCoreKey.c
+++ b/app/src/main/jni/com_ravencoin_core_BRCoreKey.c
@@ -125,11 +125,11 @@ Java_com_ravenwallet_core_BRCoreKey_getBase58EncodedPublicKey
 
 /*
  * Class:     com_ravencoin_core_BRCoreKey
- * Method:    getSeedFromPhrase
+ * Method:    getDerivedPhraseKey
  * Signature: ([B)[B
  */
 JNIEXPORT jbyteArray JNICALL
-Java_com_ravenwallet_core_BRCoreKey_getSeedFromPhrase
+Java_com_ravenwallet_core_BRCoreKey_getDerivedPhraseKey
         (JNIEnv *env, jclass thisClass, jbyteArray phrase) {
 
     jbyte *bytePhrase = (*env)->GetByteArrayElements(env, phrase, 0);
diff --git a/app/src/main/jni/com_ravencoin_core_BRCoreKey.h b/app/src/main/jni/com_ravencoin_core_BRCoreKey.h
index d928a48b6..87c2ea70f 100644
--- a/app/src/main/jni/com_ravencoin_core_BRCoreKey.h
+++ b/app/src/main/jni/com_ravencoin_core_BRCoreKey.h
@@ -41,10 +41,10 @@ JNIEXPORT jstring JNICALL Java_com_ravenwallet_core_BRCoreKey_getPrivKey
 
 /*
  * Class:     com_ravencoin_core_BRCoreKey
- * Method:    getSeedFromPhrase
+ * Method:    getDerivedPhraseKey
  * Signature: ([B)[B
  */
-JNIEXPORT jbyteArray JNICALL Java_com_ravenwallet_core_BRCoreKey_getSeedFromPhrase
+JNIEXPORT jbyteArray JNICALL Java_com_ravenwallet_core_BRCoreKey_getDerivedPhraseKey
   (JNIEnv *, jclass, jbyteArray);
 
 /*
diff --git a/app/src/main/jni/root/com/ravenwallet/core/BRCoreKey.java b/app/src/main/jni/root/com/ravenwallet/core/BRCoreKey.java
index f02c35efc..1c5b36935 100644
--- a/app/src/main/jni/root/com/ravenwallet/core/BRCoreKey.java
+++ b/app/src/main/jni/root/com/ravenwallet/core/BRCoreKey.java
@@ -109,7 +109,7 @@ public BRCoreKey () {
     //
     //
     //
-    public static native byte[] getSeedFromPhrase (byte[] phrase);
+    public static native byte[] getDerivedPhraseKey(byte[] phrase);
 
     public static native byte[] getAuthPrivKeyForAPI (byte[] seed);
 
diff --git a/app/src/main/jni/root/com/ravenwallet/core/BRCoreMasterPubKey.java b/app/src/main/jni/root/com/ravenwallet/core/BRCoreMasterPubKey.java
index 4601e993b..980d852b3 100644
--- a/app/src/main/jni/root/com/ravenwallet/core/BRCoreMasterPubKey.java
+++ b/app/src/main/jni/root/com/ravenwallet/core/BRCoreMasterPubKey.java
@@ -109,4 +109,13 @@ private BRCoreMasterPubKey (long jniReferenceAddress) {
      * @return
      */
     public static native byte[] generatePaperKey (byte[] seed, String[] words);
+
+    /**
+     * Generate seed from a 'paper key' and an array of words[2048].
+     *
+     * @param phrase  The phrase to decode
+     * @param words Valid words.
+     * @return
+     */
+    public static native byte[] decodePaperKey (String phrase, String[] words);
 }
diff --git a/app/src/main/res/layout/activity_write_down.xml b/app/src/main/res/layout/activity_write_down.xml
index 5f2d1ee5e..b11ffae4f 100644
--- a/app/src/main/res/layout/activity_write_down.xml
+++ b/app/src/main/res/layout/activity_write_down.xml
@@ -62,6 +62,7 @@
     </FrameLayout>
 
     <com.ravenwallet.presenter.customviews.BRText
+        android:id="@+id/paper_instructions"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_below="@+id/gradient_layout"
@@ -73,6 +74,29 @@
         android:textColor="@color/almost_black"
         android:textSize="18sp"/>
 
+
+    <com.ravenwallet.presenter.customviews.BRText
+        android:id="@+id/phrase_language"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_below="@id/paper_instructions"
+        android:layout_centerHorizontal="true"
+        android:layout_margin="@dimen/default_gap"
+        android:text="@string/StartPaperPhrase.phrase_language"
+        android:textColor="@color/almost_black"
+        android:textSize="18sp"/>
+
+    <ListView
+        android:id="@+id/language_list"
+        android:footerDividersEnabled="false"
+        android:headerDividersEnabled="false"
+        android:background="@color/extra_light_blue_background"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="2dp"
+        android:layout_below="@id/phrase_language"
+        android:layout_above="@id/button_write_down"/>
+
     <com.ravenwallet.presenter.customviews.BRButton
         android:id="@+id/button_write_down"
         android:layout_width="match_parent"
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 5fac658da..8bbeac061 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -434,6 +434,8 @@
     <!-- button label -->
     <!-- Paper key explanation text. -->
     <string name="StartPaperPhrase.body">Your paper key is the only way to restore your Ravencoin Wallet if your phone is lost, stolen, broken, or upgraded.\n\nWe will show you a list of words to write down on a piece of paper and keep safe.</string>
+    <!-- Paper key explanation text. -->
+    <string name="StartPaperPhrase.phrase_language">Paper Key Language</string>
     <!-- button label -->
     <string name="StartPaperPhrase.buttonTitle">Write Down Paper Key</string>
     <!-- Argument is date -->

From 94e17527b6059be1e2950beff5bfb5c1c9916d13 Mon Sep 17 00:00:00 2001
From: Ben Abraham <ben.d.abraham@gmail.com>
Date: Sat, 10 Apr 2021 14:27:38 -0400
Subject: [PATCH 08/10] Removed UI elements for manual BIP39 language
 selection. Phrase language selection is entirely based on system language at
 the time of phrase creation. After the phrase has been created, it is always
 interpreted as text going forward, so all existing references should continue
 to work with no issues. Added helper function for validating whole phrase.
 Added helper function for getting current locale in a version-aware manner.

---
 .../activities/PaperKeyActivity.java          |  6 +-
 .../activities/intro/WriteDownActivity.java   | 77 +------------------
 .../ravenwallet/tools/security/PostAuth.java  | 11 ---
 .../ravenwallet/tools/util/Bip39Wordlist.java | 11 ++-
 .../com/ravenwallet/tools/util/Utils.java     |  9 +++
 .../com/ravenwallet/wallet/WalletsMaster.java |  2 +-
 .../com_ravencoin_core_BRCoreMasterPubKey.c   |  8 +-
 .../main/res/layout/activity_write_down.xml   | 23 ------
 app/src/test/java/PaperKeyTests.java          |  2 +-
 9 files changed, 26 insertions(+), 123 deletions(-)

diff --git a/app/src/main/java/com/ravenwallet/presenter/activities/PaperKeyActivity.java b/app/src/main/java/com/ravenwallet/presenter/activities/PaperKeyActivity.java
index 7b2e1d746..cffd13ce8 100644
--- a/app/src/main/java/com/ravenwallet/presenter/activities/PaperKeyActivity.java
+++ b/app/src/main/java/com/ravenwallet/presenter/activities/PaperKeyActivity.java
@@ -99,8 +99,10 @@ public void onClick(View v) {
         });
 
         String cleanPhrase = getIntent().getExtras() == null ? null : getIntent().getStringExtra("phrase");
-        String phraseLanguage = getIntent().getExtras() == null ? null : getIntent().getStringExtra("phraseLanguage");
-        phraseLanguage = phraseLanguage == null ? Bip39Wordlist.DEFAULT_WORDLIST.getLanguageCode() : phraseLanguage;
+
+        if(!Bip39Wordlist.isValidPhrase(PaperKeyActivity.this, cleanPhrase)) {
+            BRReportsManager.reportBug(new IllegalArgumentException("Paper key phrase is invalid"), true);
+        }
 
         wordMap = new SparseArray<>();
 
diff --git a/app/src/main/java/com/ravenwallet/presenter/activities/intro/WriteDownActivity.java b/app/src/main/java/com/ravenwallet/presenter/activities/intro/WriteDownActivity.java
index 12aa5d7cb..b78e526bf 100644
--- a/app/src/main/java/com/ravenwallet/presenter/activities/intro/WriteDownActivity.java
+++ b/app/src/main/java/com/ravenwallet/presenter/activities/intro/WriteDownActivity.java
@@ -50,13 +50,9 @@ public class WriteDownActivity extends BRActivity {
     private static final String TAG = WriteDownActivity.class.getName();
     private Button writeButton;
     private ImageButton close;
-    private ListView languageList;
     public static boolean appVisible = false;
     private static WriteDownActivity app;
 
-    private MnemonicLanguageListAdapter languageOptions;
-    private Bip39Wordlist selectedLanguage;
-
     public static WriteDownActivity getApp() {
         return app;
     }
@@ -66,8 +62,6 @@ protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_write_down);
 
-        selectedLanguage = Bip39Wordlist.getWordlistForLocale();
-
         writeButton = findViewById(R.id.button_write_down);
         close = findViewById(R.id.close_button);
         close.setOnClickListener(new View.OnClickListener() {
@@ -84,17 +78,6 @@ public void onClick(View v) {
                 BRAnimator.showSupportFragment(app, BRConstants.paperKey);
             }
         });
-        languageList = findViewById(R.id.language_list);
-        languageOptions = new MnemonicLanguageListAdapter(this, R.layout.gateway_list_item);
-        languageList.setAdapter(languageOptions);
-        languageList.setOnItemClickListener(new AdapterView.OnItemClickListener() {
-            @Override
-            public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
-                Bip39Wordlist newLanguage = languageOptions.getItem(i);
-                languageOptions.setSelectedLanguage(newLanguage);
-                languageOptions.notifyDataSetChanged();
-            }
-        });
 
         writeButton.setOnClickListener(new View.OnClickListener() {
             @Override
@@ -103,7 +86,7 @@ public void onClick(View v) {
                 AuthManager.getInstance().authPrompt(WriteDownActivity.this, null, getString(R.string.VerifyPin_continueBody), true, false, new BRAuthCompletion() {
                     @Override
                     public void onComplete() {
-                        PostAuth.getInstance().onPhraseCheckAuth(WriteDownActivity.this, false, languageOptions.selectedLanguage.getLanguageCode());
+                        PostAuth.getInstance().onPhraseCheckAuth(WriteDownActivity.this, false);
                     }
 
                     @Override
@@ -164,62 +147,4 @@ private void close() {
         if (!isDestroyed())
             finish();
     }
-
-
-    public class MnemonicLanguageListAdapter extends ArrayAdapter<Bip39Wordlist> {
-
-        private Context mContext;
-        int layoutResourceId;
-
-        Bip39Wordlist selectedLanguage;
-
-        public MnemonicLanguageListAdapter(@NonNull Context context, @LayoutRes int resource) {
-            super(context, resource);
-            this.selectedLanguage = Bip39Wordlist.getWordlistForLocale();
-            this.mContext = context;
-            this.layoutResourceId = resource;
-            this.addAll(Bip39Wordlist.LANGS);
-        }
-
-        public Bip39Wordlist getSelectedLanguage() {
-            return selectedLanguage;
-        }
-
-        public void setSelectedLanguage(Bip39Wordlist selectedLanguage) {
-            this.selectedLanguage = selectedLanguage;
-        }
-
-        @NonNull
-        @Override
-        public View getView(int position, @Nullable View convertView, @NonNull ViewGroup parent) {
-            Bip39Wordlist wordlist = getItem(position);
-
-            if (convertView == null) {
-                LayoutInflater inflater = ((Activity) mContext).getLayoutInflater();
-                convertView = inflater.inflate(layoutResourceId, parent, false);
-            }
-            TextView textViewItem = convertView.findViewById(R.id.gateway_item_name);
-            FontManager.overrideFonts(textViewItem);
-            textViewItem.setText(String.format("%s [%s]", wordlist.getLanguageName(), wordlist.getLanguageCode()));
-            ImageView checkMark = convertView.findViewById(R.id.gateway_checkmark);
-
-            if (wordlist.getLanguageCode().equals(selectedLanguage.getLanguageCode())) {
-                checkMark.setVisibility(View.VISIBLE);
-            } else {
-                checkMark.setVisibility(View.GONE);
-            }
-
-            return convertView;
-        }
-
-        @Override
-        public int getCount() {
-            return super.getCount();
-        }
-
-        @Override
-        public int getItemViewType(int position) {
-            return super.getItemViewType(position);
-        }
-    }
 }
diff --git a/app/src/main/java/com/ravenwallet/tools/security/PostAuth.java b/app/src/main/java/com/ravenwallet/tools/security/PostAuth.java
index dc697beda..91864f1e4 100644
--- a/app/src/main/java/com/ravenwallet/tools/security/PostAuth.java
+++ b/app/src/main/java/com/ravenwallet/tools/security/PostAuth.java
@@ -74,10 +74,6 @@ public void onCreateWalletAuth(Activity app, boolean authAsked) {
     }
 
     public void onPhraseCheckAuth(Activity app, boolean authAsked) {
-        onPhraseCheckAuth(app, authAsked, Bip39Wordlist.DEFAULT_WORDLIST.getLanguageCode());
-    }
-
-    public void onPhraseCheckAuth(Activity app, boolean authAsked, String phraseLanguage) {
         String cleanPhrase;
         try {
             byte[] raw = BRKeyStore.getPhrase(app, BRConstants.SHOW_PHRASE_REQUEST_CODE);
@@ -86,12 +82,6 @@ public void onPhraseCheckAuth(Activity app, boolean authAsked, String phraseLang
                 return;
             }
             cleanPhrase = new String(raw);
-            //TODO: Need to handle this better, by storing the phrase as direct seed bytes (encoded if needed) and not english text phrase
-            if(!phraseLanguage.equals(Bip39Wordlist.DEFAULT_WORDLIST.getLanguageCode())) {
-                byte[] phraseSeed = Bip39Wordlist.DEFAULT_WORDLIST.decodePaperKeyPhrase(app, cleanPhrase);
-                byte[] translatedPhrase = Bip39Wordlist.getWordlistForLanguage(phraseLanguage).generatePaperKeyBytes(app, phraseSeed);
-                cleanPhrase = new String(translatedPhrase);
-            }
         } catch (UserNotAuthenticatedException e) {
             if (authAsked) {
                 Log.e(TAG, "onPhraseCheckAuth: WARNING!!!! LOOP");
@@ -101,7 +91,6 @@ public void onPhraseCheckAuth(Activity app, boolean authAsked, String phraseLang
         }
         Intent intent = new Intent(app, PaperKeyActivity.class);
         intent.putExtra("phrase", cleanPhrase);
-        intent.putExtra("phraseLanguage", phraseLanguage);
         app.startActivity(intent);
         app.overridePendingTransition(R.anim.enter_from_bottom, R.anim.empty_300);
     }
diff --git a/app/src/main/java/com/ravenwallet/tools/util/Bip39Wordlist.java b/app/src/main/java/com/ravenwallet/tools/util/Bip39Wordlist.java
index c8072b00c..57418edae 100644
--- a/app/src/main/java/com/ravenwallet/tools/util/Bip39Wordlist.java
+++ b/app/src/main/java/com/ravenwallet/tools/util/Bip39Wordlist.java
@@ -41,10 +41,10 @@ public class Bip39Wordlist {
     };
     public static Bip39Wordlist DEFAULT_WORDLIST = LANGS[1]; //en
 
-    public static Bip39Wordlist getWordlistForLocale() {
-        return getWordlistForLocale(Locale.getDefault());
+    public static Bip39Wordlist getWordlistForCurrentLocale() {
+        return getWordlistForCurrentLocale(Utils.getCurrentLocale());
     }
-    public static Bip39Wordlist getWordlistForLocale(Locale locale) {
+    public static Bip39Wordlist getWordlistForCurrentLocale(Locale locale) {
         String languageCode = locale != null ? locale.getLanguage() : null;
         if (languageCode == null) return DEFAULT_WORDLIST;
         return getWordlistForLanguage(languageCode);
@@ -55,7 +55,7 @@ public static Bip39Wordlist getWordlistForLanguage(String languageCode) {
             if (lang.languageCode.equals(languageCode))
                 return lang;
         }
-        return null;
+        return DEFAULT_WORDLIST;
     }
     public static Bip39Wordlist identifyWordlist(Context app, byte[] paperKeyBytes) {
         return identifyWordlist(app, paperKeyString(paperKeyBytes));
@@ -66,6 +66,9 @@ public static Bip39Wordlist identifyWordlist(Context app, String phrase) {
                 return list;
         return null;
     }
+    public static boolean isValidPhrase(Context app, String phrase) {
+        return identifyWordlist(app, phrase) != null;
+    }
     public static boolean isValidWord(Context app, String checkWord) {
         String cleanWord = cleanWord(checkWord);
         for(Bip39Wordlist list : LANGS)
diff --git a/app/src/main/java/com/ravenwallet/tools/util/Utils.java b/app/src/main/java/com/ravenwallet/tools/util/Utils.java
index 015b5c133..910bcbf8b 100644
--- a/app/src/main/java/com/ravenwallet/tools/util/Utils.java
+++ b/app/src/main/java/com/ravenwallet/tools/util/Utils.java
@@ -8,6 +8,7 @@
 import android.content.pm.PackageManager;
 import android.hardware.fingerprint.FingerprintManager;
 import android.os.Build;
+import android.os.LocaleList;
 import android.provider.Settings;
 import androidx.annotation.Nullable;
 import androidx.core.app.ActivityCompat;
@@ -230,4 +231,12 @@ public static String getIpfsUrlFromHash(Context app, String hash) {
         //TODO: Hash Validation?
         return String.format(BRConstants.IPFS_URL_FORMAT, BRSharedPrefs.getPreferredIPFSGateway(app), hash);
     }
+
+    public static Locale getCurrentLocale() {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N){
+            return LocaleList.getDefault().get(0);
+        } else{
+            return Locale.getDefault();
+        }
+    }
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/ravenwallet/wallet/WalletsMaster.java b/app/src/main/java/com/ravenwallet/wallet/WalletsMaster.java
index 33adc7e34..ae8813bd4 100644
--- a/app/src/main/java/com/ravenwallet/wallet/WalletsMaster.java
+++ b/app/src/main/java/com/ravenwallet/wallet/WalletsMaster.java
@@ -78,7 +78,7 @@ public BigDecimal getAggregatedFiatBalance(Context app) {
     }
 
     public synchronized boolean generateRandomSeed(final Context ctx) {
-        Bip39Wordlist bipWords = Bip39Wordlist.getWordlistForLocale();
+        Bip39Wordlist bipWords = Bip39Wordlist.getWordlistForCurrentLocale();
 
         //Generate a random seed to use
         final byte[] randomSeed = bipWords.generateRandomSeed();
diff --git a/app/src/main/jni/com_ravencoin_core_BRCoreMasterPubKey.c b/app/src/main/jni/com_ravencoin_core_BRCoreMasterPubKey.c
index 34067a1ba..65e13b0c2 100644
--- a/app/src/main/jni/com_ravencoin_core_BRCoreMasterPubKey.c
+++ b/app/src/main/jni/com_ravencoin_core_BRCoreMasterPubKey.c
@@ -278,15 +278,13 @@ JNIEXPORT jbyteArray JNICALL
 Java_com_ravenwallet_core_BRCoreMasterPubKey_decodePaperKey
         (JNIEnv *env, jclass thisClass, jstring jPhrase, jobjectArray stringArray) {
     int wordsCount = (*env)->GetArrayLength(env, stringArray);
-    char *wordList[wordsCount];
+    const char **wordList = (const char **) calloc (wordsCount, sizeof (char*));
 
     for (int i = 0; i < wordsCount; i++) {
         jstring string = (jstring) (*env)->GetObjectArrayElement(env, stringArray, i);
         const char *rawString = (*env)->GetStringUTFChars(env, string, 0);
 
-        wordList[i] = malloc(strlen(rawString) + 1);
-        strcpy(wordList[i], rawString);
-        (*env)->ReleaseStringUTFChars(env, string, rawString);
+        wordList[i] = rawString;
         (*env)->DeleteLocalRef(env, string);
     }
 
@@ -304,7 +302,7 @@ Java_com_ravenwallet_core_BRCoreMasterPubKey_decodePaperKey
 
 
     jbyteArray bytePhrase = (*env)->NewByteArray(env, sizeof(entropy));
-    (*env)->SetByteArrayRegion(env, bytePhrase, 0, sizeof(entropy), entropy.u8);
+    (*env)->SetByteArrayRegion(env, bytePhrase, 0, sizeof(entropy), (jbyte *) entropy.u8);
 
     return bytePhrase;
 }
diff --git a/app/src/main/res/layout/activity_write_down.xml b/app/src/main/res/layout/activity_write_down.xml
index b11ffae4f..b3bd6e5ed 100644
--- a/app/src/main/res/layout/activity_write_down.xml
+++ b/app/src/main/res/layout/activity_write_down.xml
@@ -74,29 +74,6 @@
         android:textColor="@color/almost_black"
         android:textSize="18sp"/>
 
-
-    <com.ravenwallet.presenter.customviews.BRText
-        android:id="@+id/phrase_language"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_below="@id/paper_instructions"
-        android:layout_centerHorizontal="true"
-        android:layout_margin="@dimen/default_gap"
-        android:text="@string/StartPaperPhrase.phrase_language"
-        android:textColor="@color/almost_black"
-        android:textSize="18sp"/>
-
-    <ListView
-        android:id="@+id/language_list"
-        android:footerDividersEnabled="false"
-        android:headerDividersEnabled="false"
-        android:background="@color/extra_light_blue_background"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:layout_marginTop="2dp"
-        android:layout_below="@id/phrase_language"
-        android:layout_above="@id/button_write_down"/>
-
     <com.ravenwallet.presenter.customviews.BRButton
         android:id="@+id/button_write_down"
         android:layout_width="match_parent"
diff --git a/app/src/test/java/PaperKeyTests.java b/app/src/test/java/PaperKeyTests.java
index 7e5e8f26f..a3bd5ca89 100644
--- a/app/src/test/java/PaperKeyTests.java
+++ b/app/src/test/java/PaperKeyTests.java
@@ -158,7 +158,7 @@ public void testPaperKeyGenerate() {
         Assert.assertNotNull("Valid phrase", Bip39Wordlist.identifyWordlist(null, paperKeyBytes));
 
         //Re-extract the seed from the newly created phrase for checking
-        byte[] verifyRandomSeed = bipWords.getSeedFromPhrase(paperKeyBytes);
+        byte[] verifyRandomSeed = bipWords.decodePaperKeyPhrase(null, new String(paperKeyBytes));
 
         //Create an api private key, this function will internally verify the results, and will raise if invalid
         byte[] privateKeyBytes = bipWords.getPrivateKeyForAPI(randomSeed);

From ef52782bd602b7d67ea3fb73940ecfb8dc742d38 Mon Sep 17 00:00:00 2001
From: Ben Abraham <ben.d.abraham@gmail.com>
Date: Sat, 10 Apr 2021 14:28:06 -0400
Subject: [PATCH 09/10] Fix function definition in PaperKeyTests.

---
 app/src/test/java/PaperKeyTests.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/app/src/test/java/PaperKeyTests.java b/app/src/test/java/PaperKeyTests.java
index a3bd5ca89..a28737c3c 100644
--- a/app/src/test/java/PaperKeyTests.java
+++ b/app/src/test/java/PaperKeyTests.java
@@ -75,7 +75,7 @@ public void testWordlistsValidSizes() {
         for(Bip39Wordlist wordlist : Bip39Wordlist.LANGS) {
             //This will raise an exception if the wordlist is invalid
             wordlist.loadWords(null);
-            assertEquals("Wordlist is expected size", wordlist.getWords().length, Bip39Wordlist.WORD_LIST_SIZE);
+            assertEquals("Wordlist is expected size", wordlist.getWords(null).length, Bip39Wordlist.WORD_LIST_SIZE);
         }
     }
 

From 08ab733bbc0223f0287dd94f67d3049019736543 Mon Sep 17 00:00:00 2001
From: Ben Abraham <ben.d.abraham@gmail.com>
Date: Sat, 10 Apr 2021 16:21:05 -0400
Subject: [PATCH 10/10] Support for properly picking the highest available
 wordlist based on ordering of selected locales. Also fixed chinese languages
 not being selected properly.

---
 .../ravenwallet/tools/util/Bip39Wordlist.java | 34 +++++++++++++++----
 1 file changed, 27 insertions(+), 7 deletions(-)

diff --git a/app/src/main/java/com/ravenwallet/tools/util/Bip39Wordlist.java b/app/src/main/java/com/ravenwallet/tools/util/Bip39Wordlist.java
index 57418edae..ca0feb9a5 100644
--- a/app/src/main/java/com/ravenwallet/tools/util/Bip39Wordlist.java
+++ b/app/src/main/java/com/ravenwallet/tools/util/Bip39Wordlist.java
@@ -2,6 +2,8 @@
 
 import android.content.Context;
 import android.content.res.AssetManager;
+import android.os.Build;
+import android.os.LocaleList;
 
 import com.ravenwallet.core.BRCoreKey;
 import com.ravenwallet.core.BRCoreMasterPubKey;
@@ -36,24 +38,42 @@ public class Bip39Wordlist {
             new Bip39Wordlist("ja","Japanese"),
             new Bip39Wordlist("ko","Korean"),
             new Bip39Wordlist("pt","Portuguese"),
-            new Bip39Wordlist("zh-CN","Chinese (Simplified)"),
-            new Bip39Wordlist("zh-TW","Chinese (Traditional)")
+            new Bip39Wordlist("zh-.*?CN","Chinese (Simplified)"),
+            new Bip39Wordlist("zh-.*?TW","Chinese (Traditional)")
     };
     public static Bip39Wordlist DEFAULT_WORDLIST = LANGS[1]; //en
 
     public static Bip39Wordlist getWordlistForCurrentLocale() {
-        return getWordlistForCurrentLocale(Utils.getCurrentLocale());
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N){
+            LocaleList localeList = LocaleList.getDefault();
+            //Search each selected locale, in order, to find the first available wordlist
+            for(int i = 0; i < localeList.size(); i++) {
+                Locale testLocale = localeList.get(i);
+                Bip39Wordlist testWordlist = getWordlistForLocale(testLocale);
+                if(testWordlist != DEFAULT_WORDLIST || testLocale.getLanguage().equals(DEFAULT_WORDLIST.languageCode))
+                    return testWordlist;
+            }
+            return DEFAULT_WORDLIST; //Fallback
+        } else{
+            return getWordlistForLocale(Utils.getCurrentLocale());
+        }
     }
-    public static Bip39Wordlist getWordlistForCurrentLocale(Locale locale) {
-        String languageCode = locale != null ? locale.getLanguage() : null;
-        if (languageCode == null) return DEFAULT_WORDLIST;
-        return getWordlistForLanguage(languageCode);
+    public static Bip39Wordlist getWordlistForLocale(Locale locale) {
+        if(locale == null) return DEFAULT_WORDLIST;
+        return getWordlistForLanguage(locale.getLanguage(), locale.toLanguageTag());
     }
     public static Bip39Wordlist getWordlistForLanguage(String languageCode) {
+        return getWordlistForLanguage(languageCode, null);
+    }
+    public static Bip39Wordlist getWordlistForLanguage(String languageCode, String languageTag) {
         if(languageCode == null) return null;
         for(Bip39Wordlist lang : LANGS) {
             if (lang.languageCode.equals(languageCode))
                 return lang;
+
+            //NOTE: when looking by language tag, we use .matches() to allow the use of regex
+            if(!Utils.isNullOrEmpty(languageTag) && languageTag.matches(lang.languageCode))
+                return lang;
         }
         return DEFAULT_WORDLIST;
     }