Bumping version to 2.1.1

Fixes #1701

.gitignore

@@ -5,7 +5,17 @@ project.properties
 bin/
 gen/
 .idea/
-TextSecure.iml
+*.iml
 out
 tests
 lint.xml
+local.properties
+ant.properties
+.DS_Store
+build.log
+build-log.xml
+.gradle
+build
+signing.properties
+library/lib/
+library/obj/

.travis.yml

@@ -0,0 +1,7 @@
+language: android
+android:
+  components:
+    - platform-tools
+    - build-tools-19.1.0
+    - android-19
+    - extra-android-m2repository

.tx/config

@@ -1,5 +1,7 @@
 [main]
 host = https://www.transifex.com
+lang_map = fr_CA:fr-rCA,pt_BR:pt-rBR,pt_PT:pt,zh_CN:zh-rCN,zh_HK:zh-rHK,zh_TW:zh-rTW,da_DK:da-rDK,de_DE:de,tr_TR:tr,fr_FR:fr,es_ES:es,hu_HU:hu,sv_SE:sv-rSE,bg_BG:bg,el_GR:el,kn_IN:kn-rIN,cs_CZ:cs
+
 
 [textsecure-official.master]
 file_filter = res/values-<lang>/strings.xml

AndroidManifest.xml

@@ -1,128 +1,229 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-      package="org.thoughtcrime.securesms"
-      android:versionCode="25"
-      android:versionName="0.7">
+          xmlns:tools="http://schemas.android.com/tools"
+          package="org.thoughtcrime.securesms"
+      android:versionCode="73"
+      android:versionName="2.1.1">
 
-    <uses-sdk android:minSdkVersion="8" android:targetSdkVersion="16"/>
+    <uses-sdk android:minSdkVersion="9" android:targetSdkVersion="19"/>
 
     <permission android:name="org.thoughtcrime.securesms.ACCESS_SECRETS"
-            android:label="Access to TextSecure Secrets"
-            android:protectionLevel="signature" />    
-    
-	<uses-permission android:name="org.thoughtcrime.securesms.ACCESS_SECRETS"></uses-permission>
-	<uses-permission android:name="android.permission.BROADCAST_WAP_PUSH"></uses-permission>
-	<uses-permission android:name="android.permission.READ_CONTACTS"></uses-permission>
-	<uses-permission android:name="android.permission.WRITE_CONTACTS"></uses-permission>
-	<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
-	<uses-permission android:name="android.permission.RECEIVE_SMS"></uses-permission>
-	<uses-permission android:name="android.permission.RECEIVE_MMS"></uses-permission>
-	<uses-permission android:name="android.permission.READ_SMS"></uses-permission>
-	<uses-permission android:name="android.permission.SEND_SMS"></uses-permission>
-	<uses-permission android:name="android.permission.WRITE_SMS"></uses-permission>
-	<uses-permission android:name="android.permission.VIBRATE"></uses-permission>
-	<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
-	<uses-permission android:name="android.permission.CHANGE_NETWORK_STATE" />
-	<uses-permission android:name="android.permission.READ_PHONE_STATE" />
-	<uses-permission android:name="android.permission.WAKE_LOCK" />
-	<uses-permission android:name="android.permission.INTERNET" />
-	<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
-        
-    <application android:icon="@drawable/icon"
-                 android:label="@string/app_name"
-                 android:theme="@style/Theme.Sherlock.Light.DarkActionBar">
+                android:label="Access to TextSecure Secrets"
+                android:protectionLevel="signature" />
 
-        <activity android:name=".ConversationListActivity"
-                  android:label="@string/app_name"
+	<uses-permission android:name="org.thoughtcrime.securesms.ACCESS_SECRETS"/>
+    <uses-permission android:name="android.permission.READ_PROFILE"/>
+    <uses-permission android:name="android.permission.WRITE_PROFILE"/>
+    <uses-permission android:name="android.permission.BROADCAST_WAP_PUSH"
+                     tools:ignore="ProtectedPermissions"/>
+    <uses-permission android:name="android.permission.READ_CONTACTS"/>
+    <uses-permission android:name="android.permission.WRITE_CONTACTS"/>
+    <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
+    <uses-permission android:name="android.permission.RECEIVE_SMS"/>
+    <uses-permission android:name="android.permission.RECEIVE_MMS"/>
+    <uses-permission android:name="android.permission.READ_SMS"/>
+    <uses-permission android:name="android.permission.SEND_SMS"/>
+    <uses-permission android:name="android.permission.WRITE_SMS"/>
+    <uses-permission android:name="android.permission.VIBRATE"/>
+    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
+    <uses-permission android:name="android.permission.CHANGE_NETWORK_STATE" />
+    <uses-permission android:name="android.permission.READ_PHONE_STATE" />
+    <uses-permission android:name="android.permission.WAKE_LOCK" />
+    <uses-permission android:name="android.permission.INTERNET" />
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
+    <uses-permission android:name="android.permission.READ_CALL_LOG" />
+    <uses-permission android:name="android.permission.GET_ACCOUNTS" />
+    <uses-permission android:name="android.permission.WAKE_LOCK" />
+    <uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" />
+
+    <permission android:name="org.thoughtcrime.securesms.permission.C2D_MESSAGE"
+                android:protectionLevel="signature" />
+    <uses-permission android:name="org.thoughtcrime.securesms.permission.C2D_MESSAGE" />
+
+    <application android:name="org.thoughtcrime.securesms.ApplicationListener"
+                 android:icon="@drawable/icon"
+                 android:label="@string/app_name"
+                 android:theme="@style/TextSecure.LightTheme">
+
+        <activity android:name=".RoutingActivity"
+                  android:theme="@style/NoAnimation.Theme.BlackScreen"
                   android:launchMode="singleTask"
-                  android:uiOptions="splitActionBarWhenNarrow"
                   android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize">
 
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
-            
+
             <intent-filter>
                   <action android:name="android.intent.action.SENDTO"/>
                   <category android:name="android.intent.category.DEFAULT" />
                   <data android:scheme="sms" />
                   <data android:scheme="smsto" />
+                  <data android:scheme="mms" />
+                  <data android:scheme="mmsto" />
             </intent-filter>
-            
+
+            <intent-filter>
+                <action android:name="android.intent.action.SEND" />
+                <category android:name="android.intent.category.DEFAULT"/>
+                <data android:mimeType="audio/*" />
+                <data android:mimeType="image/*" />
+                <data android:mimeType="text/plain" />
+                <data android:mimeType="video/*" />
+            </intent-filter>
+
         </activity>
 
+    <activity android:name=".RegistrationProblemsActivity"
+              android:theme="@style/TextSecure.Light.Dialog"
+              android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"/>
+
+    <activity android:name=".CountrySelectionActivity"
+              android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"/>
+
+    <activity android:name=".ImportExportActivity"
+              android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"/>
+
+    <activity android:name=".PromptMmsActivity"
+              android:label="Configure MMS Settings"
+              android:windowSoftInputMode="stateUnchanged"              
+              android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"/>
+
+    <activity android:name=".MmsPreferencesActivity"
+               android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"/>
+
+    <activity android:name=".ShareActivity"
+              android:excludeFromRecents="true"
+              android:launchMode="singleTask"
+              android:noHistory="true"
+              android:windowSoftInputMode="stateHidden"
+              android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"/>
+
+    <activity android:name=".ConversationListActivity"
+          android:label="@string/app_name"
+          android:launchMode="singleTask"
+          android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"/>
+
     <activity android:name=".ConversationActivity"
               android:windowSoftInputMode="stateUnchanged"
               android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"/>
 
+    <activity android:name=".GroupCreateActivity"
+              android:windowSoftInputMode="stateVisible"
+              android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"/>
+
+    <activity android:name=".DatabaseMigrationActivity"
+              android:theme="@style/NoAnimation.Theme.Sherlock.Light.DarkActionBar"
+              android:launchMode="singleTask"
+              android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"/>
+
+    <activity android:name=".DatabaseUpgradeActivity"
+              android:theme="@style/NoAnimation.Theme.Sherlock.Light.DarkActionBar"
+              android:launchMode="singleTask"
+              android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"/>
+
     <activity android:name=".PassphraseCreateActivity"
-              android:theme="@style/Theme.Sherlock.Light.Dialog"
-              android:label="@string/create_passphrase"
-              android:launchMode="singleInstance"
+              android:label="@string/AndroidManifest__create_passphrase"
+              android:windowSoftInputMode="stateUnchanged"
+              android:theme="@style/NoAnimation.Theme.Sherlock.Light.DarkActionBar"
+              android:launchMode="singleTop"
               android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"/>
 
     <activity android:name=".PassphrasePromptActivity"
-              android:theme="@style/Theme.Sherlock.Light.Dialog"
-              android:label="@string/enter_passphrase"
-              android:launchMode="singleInstance"
-              android:windowSoftInputMode="stateVisible"
+              android:label="@string/AndroidManifest__enter_passphrase"
+              android:launchMode="singleTop"
+              android:theme="@style/TextSecure.IntroTheme"
+              android:windowSoftInputMode="stateAlwaysVisible"
               android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"/>
 
     <activity android:name=".ContactSelectionActivity"
-              android:label="@string/select_contacts"
+              android:label="@string/AndroidManifest__select_contacts"
+              android:windowSoftInputMode="stateHidden"
               android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"/>
 
+    <activity android:name=".NewConversationActivity"
+              android:label="@string/AndroidManifest__select_contacts"
+              android:windowSoftInputMode="stateHidden"
+              android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"/>
+
+    <activity android:name=".PushContactSelectionActivity"
+          android:label="@string/AndroidManifest__select_contacts"
+          android:windowSoftInputMode="stateHidden"
+          android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"/>
+
     <activity android:name=".AutoInitiateActivity"
-              android:theme="@style/Theme.Sherlock.Light.Dialog"
-              android:label="@string/textsecure_detected"
+              android:theme="@style/TextSecure.Light.Dialog"
+              android:label="@string/AndroidManifest__textsecure_detected"
               android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"/>
 
     <activity android:name=".ViewIdentityActivity"
-              android:theme="@style/Theme.Sherlock.Light.Dialog"
-              android:label="@string/public_identity_key"
+              android:label="@string/AndroidManifest__public_identity_key"
+              android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"/>
+
+    <activity android:name=".ViewLocalIdentityActivity"
               android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"/>
 
     <activity android:name=".PassphraseChangeActivity"
-              android:theme="@style/Theme.Sherlock.Light.Dialog"
-              android:label="@string/change_passphrase2"
-              android:launchMode="singleInstance"
-              android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"/>
-
-    <activity android:name=".VerifyKeysActivity"
-              android:label="@string/verify_session"
+              android:label="@string/AndroidManifest__change_passphrase"
               android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"/>
 
     <activity android:name=".VerifyIdentityActivity"
-              android:label="@string/verify_identity"
+              android:label="@string/AndroidManifest__verify_identity"
               android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"/>
 
-    <activity android:name=".SaveIdentityActivity"
-              android:theme="@style/Theme.Sherlock.Light.Dialog"
-              android:label="@string/save_identity"
-              android:windowSoftInputMode="stateVisible"
-              android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"/>
-
-    <activity android:name=".ReviewIdentitiesActivity"
-              android:label="@string/manage_identity_keys2"
-              android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"/>
-
-    <activity android:name=".ReceiveKeyActivity" 
-              android:theme="@style/Theme.Sherlock.Light.Dialog" 
-              android:label="@string/complete_key_exchange" 
+    <activity android:name=".ReceiveKeyActivity"
+              android:label="@string/AndroidManifest__complete_key_exchange"
+              android:theme="@style/TextSecure.Light.Dialog"
               android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"/>
     
-    <activity android:name=".ApplicationPreferencesActivity" 
+    <activity android:name=".ApplicationPreferencesActivity"
               android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"/>
 
-    <activity android:name=".VerifyImportedIdentityActivity" 
-              android:theme="@style/Theme.Sherlock.Light.Dialog" 
-              android:label="@string/verify_imported_identity" 
+    <activity android:name=".RegistrationActivity"
+              android:windowSoftInputMode="stateUnchanged"
               android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"/>
 
+    <activity android:name=".RegistrationProgressActivity"
+              android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"/>
+
+    <activity android:name=".LogSubmitActivity"
+              android:label="@string/AndroidManifest__log_submit"
+              android:windowSoftInputMode="stateHidden"
+              android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"/>
+
+    <activity android:name=".DummyActivity"
+              android:theme="@android:style/Theme.NoDisplay"
+              android:enabled="true"
+              android:allowTaskReparenting="true"
+              android:noHistory="true"
+              android:excludeFromRecents="true"
+              android:alwaysRetainTaskState="false"
+              android:stateNotNeeded="true"
+              android:clearTaskOnLaunch="true"
+              android:finishOnTaskLaunch="true" />
+
     <service android:enabled="true" android:name=".service.ApplicationMigrationService"/>
     <service android:enabled="true" android:name=".service.KeyCachingService"/>
     <service android:enabled="true" android:name=".service.SendReceiveService"/>
+    <service android:enabled="true" android:name=".service.RegistrationService"/>
+    <service android:enabled="true" android:name=".service.DirectoryRefreshService"/>
+    <service android:enabled="true" android:name=".service.PreKeyService"/>
+    <service android:enabled="true" android:name=".gcm.GcmIntentService"/>
+
+    <service android:name=".service.QuickResponseService"
+             android:permission="android.permission.SEND_RESPOND_VIA_MESSAGE"
+             android:exported="true" >
+        <intent-filter>
+            <action android:name="android.intent.action.RESPOND_VIA_MESSAGE" />
+            <category android:name="android.intent.category.DEFAULT" />
+            <data android:scheme="sms" />
+            <data android:scheme="smsto" />
+            <data android:scheme="mms" />
+            <data android:scheme="mmsto" />
+        </intent-filter>
+    </service>
+
 
 <!--	<receiver android:name=".service.BootListener" -->
 <!-- 			  android:enabled="true" -->
@@ -132,30 +233,73 @@
 <!--    		</intent-filter>-->
 <!--	</receiver>-->
 
+    <receiver android:name=".gcm.GcmBroadcastReceiver" android:permission="com.google.android.c2dm.permission.SEND" >
+        <intent-filter>
+            <action android:name="com.google.android.c2dm.intent.RECEIVE" />
+            <action android:name="com.google.android.c2dm.intent.REGISTRATION" />
+            <category android:name="org.thoughtcrime.securesms" />
+        </intent-filter>
+    </receiver>
+
     <receiver android:name=".service.SmsListener"
+              android:permission="android.permission.BROADCAST_SMS"
               android:enabled="true"
               android:exported="true">
              <intent-filter android:priority="1001">
-                 <action android:name="android.provider.Telephony.SMS_RECEIVED"></action>
+                 <action android:name="android.provider.Telephony.SMS_RECEIVED"/>
              </intent-filter>
              <intent-filter>
-                 <action android:name="org.thoughtcrime.securesms.services.MESSAGE_SENT"></action>
+                 <action android:name="android.provider.Telephony.SMS_DELIVER"/>
              </intent-filter>
     </receiver>
 
+    <receiver android:name=".service.SmsDeliveryListener"
+              android:exported="true">
+        <intent-filter>
+            <action android:name="org.thoughtcrime.securesms.services.MESSAGE_SENT"/>
+        </intent-filter>
+    </receiver>
+
     <receiver android:name=".service.MmsListener"
               android:enabled="true"
               android:exported="true"
               android:permission="android.permission.BROADCAST_WAP_PUSH">
              <intent-filter android:priority="1001">
-                 <action android:name="android.provider.Telephony.WAP_PUSH_RECEIVED"></action>
+                 <action android:name="android.provider.Telephony.WAP_PUSH_RECEIVED"/>
+                 <data android:mimeType="application/vnd.wap.mms-message" />
+             </intent-filter>
+             <intent-filter>
+                 <action android:name="android.provider.Telephony.WAP_PUSH_DELIVER"/>
                  <data android:mimeType="application/vnd.wap.mms-message" />
              </intent-filter>
     </receiver>
 
-    <provider android:name=".providers.PartProvider" 
+    <receiver android:name=".notifications.MarkReadReceiver"
+              android:enabled="true"
+              android:exported="true">
+        <intent-filter>
+            <action android:name="org.thoughtcrime.securesms.notifications.CLEAR"/>
+        </intent-filter>
+    </receiver>
+
+    <provider android:name=".providers.PartProvider"
+              android:grantUriPermissions="true"
               android:authorities="org.thoughtcrime.provider.securesms" />
 
+    <receiver android:name=".service.RegistrationNotifier"
+              android:exported="false">
+        <intent-filter>
+            <action android:name="org.thoughtcrime.securesms.REGISTRATION_EVENT" />
+        </intent-filter>
+    </receiver>
+
+    <receiver android:name=".service.DirectoryRefreshListener">
+        <intent-filter>
+            <action android:name="org.whispersystems.whisperpush.DIRECTORY_REFRESH"/>
+            <action android:name="android.intent.action.BOOT_COMPLETED" />
+        </intent-filter>
+    </receiver>
+
        <uses-library android:name="android.test.runner" />
 </application>
 

BUILDING.md

@@ -0,0 +1,67 @@
+Building TextSecure
+=====================
+
+Basics
+------
+
+TextSecure uses [Gradle](http://gradle.org) to build the project and to maintain
+dependencies.
+
+Building TextSecure
+-------------------
+
+The following steps should help you (re)build TextSecure from the command line.
+
+1. Checkout the source somewhere on your filesystem with 
+
+        git clone https://github.com/WhisperSystems/TextSecure.git
+
+2. Make sure you have the [Android SDK](https://developer.android.com/sdk/index.html) installed somewhere on your system.
+3. Ensure the "Android Support Repository" and "Android SDK Build-tools" are installed from the Android SDK manager.
+4. Create a local.properties file at the root of your source checkout and add an sdk.dir entry to it.
+
+        sdk.dir=\<path to your sdk installation\>
+
+5. Execute Gradle:
+
+        ./gradlew build
+
+Re-building native components
+-----------------------------
+
+Note: This step is optional; native components are contained as binaries (see [library/libs](library/libs)).
+
+1. Ensure that the Android NDK is installed.
+
+Execute ndk-build:
+
+    cd library
+    ndk-build
+
+Afterwards, execute Gradle as above to re-create the APK.
+
+Setting up a development environment
+------------------------------------
+
+[Android Studio](https://developer.android.com/sdk/installing/studio.html) is the recommended development environment.
+
+1. Install Android Studio
+2. Make sure the "Android Support Repository" is installed in the Android Studio SDK.
+3. Make sure the latest "Android SDK build-tools" is installed in the Android Studio SDK.
+4. Create a new Android Studio project. from the Quickstart pannel (use File > Close Project to see it), choose "Checkout from Version Control" then "git".
+5. Paste the URL for the TextSecure project when prompted (https://github.com/WhisperSystems/TextSecure.git)
+6. Android studio should detect the presence of a project file and ask you wethere to open it. Click "yes".
+7. Default config options should be good enough.
+8. Project initialisation and build should proceed.
+
+Contributing code
+-----------------
+
+Code contributions should be sent via github as pull requests, from feature branches [as explained here](https://help.github.com/articles/using-pull-requests).
+
+Mailing list
+------------
+
+Development discussion happens on the whispersystems mailing list.
+[To join](https://lists.riseup.net/www/info/whispersystems)
+Send emails to whispersystems@lists.riseup.net

README.md

@@ -1,50 +1,73 @@
-TextSecure
-=================
+# TextSecure [![Build Status](https://travis-ci.org/WhisperSystems/TextSecure.svg?branch=master)](https://travis-ci.org/WhisperSystems/TextSecure)
 
-A secure text messaging application for Android.
+TextSecure is a messaging app for easy private communicate with friends.
 
-TextSecure is a replacement for the standard text messaging application, allowing you to send and receive text messages as normal.  Additionally, TextSecure provides:
+TextSecure can use either data (WiFi/3G/4G) or SMS to communicate securely, and all TextSecure
+messages can also be encrypted locally on your device.
 
-1. *Local Encryption* -- All text messages, regardless of destination, that are sent or received with TextSecure are stored in an encrypted database on your phone.
-2. *Wire Encryption* -- When communicating with a recipient who is also using TextSecure, text messages are encrypted during transmission.
+Currently available on the Play store.
 
-Bug tracker
------------
+*[![Play Store Badge](https://developer.android.com/images/brand/en_app_rgb_wo_60.png)](https://play.google.com/store/apps/details?id=org.thoughtcrime.securesms)*
 
-Have a bug? Please create an issue here on GitHub!
+## Contributing Bug reports
+We use GitHub for bug tracking. Please search the existing issues for your bug and create a new one if the issue is not yet tracked!
 
 https://github.com/WhisperSystems/TextSecure/issues
 
+## Contributing Translations
+Interested in helping to translate TextSecure? Contribute here:
 
-Documentation
--------------
+https://www.transifex.com/projects/p/textsecure-official/
 
-Looking for documentation? Check out the wiki!
+## Contributing Code
+Instructions on how to setup your development environment and build TextSecure can be found in  [BUILDING.md](https://github.com/WhisperSystems/TextSecure/blob/master/BUILDING.md).
 
-https://github.com/WhisperSystems/TextSecure/wiki
+If you're new to the TextSecure codebase, we recommend going through our issues and picking out a simple bug to fix (check the "easy" label in our issues) in order to get yourself familiar.
 
-Mailing list
-------------
+For larger changes and feature ideas, we ask that you propose it on the mailing list for a high-level discussion before implementation.
 
-Have a question? Ask on our mailing list!
+This repository is set up with [BitHub](https://whispersystems.org/blog/bithub/), so you can make money for committing to TextSecure. The current BitHub price for an accepted pull request is:
+
+[![Current BitHub Price](https://bithub.herokuapp.com/v1/status/payment/commit/)](https://whispersystems.org/blog/bithub/)
+
+## Contributing Ideas
+Have something you want to say about Open Whisper Systems projects or want to be part of the conversation? Get involved in the mailing list!
 
 whispersystems@lists.riseup.net
 
 https://lists.riseup.net/www/info/whispersystems
 
-Cryptography Notice
-------------
+## Contributing Funds
+[![Donate](https://coinbase.com/assets/buttons/donation_large-6ec72b1a9eec516944e50a22aca7db35.png)](https://whispersystems.org/blog/bithub/)
 
-This distribution includes cryptographic software. The country in which you currently reside may have restrictions on the import, possession, use, and/or re-export to another country, of encryption software. 
-BEFORE using any encryption software, please check your country's laws, regulations and policies concerning the import, possession, or use, and re-export of encryption software, to see if this is permitted. 
+You can add funds to BitHub to directly help further development efforts.
+
+Help
+====
+## Support
+For troubleshooting and questions, please visit our support center!
+
+http://support.whispersystems.org/
+
+## Documentation
+Looking for documentation? Check out the wiki!
+
+https://github.com/WhisperSystems/TextSecure/wiki
+
+# Legal things
+## Cryptography Notice
+
+This distribution includes cryptographic software. The country in which you currently reside may have restrictions on the import, possession, use, and/or re-export to another country, of encryption software.
+BEFORE using any encryption software, please check your country's laws, regulations and policies concerning the import, possession, or use, and re-export of encryption software, to see if this is permitted.
 See <http://www.wassenaar.org/> for more information.
 
-The U.S. Government Department of Commerce, Bureau of Industry and Security (BIS), has classified this software as Export Commodity Control Number (ECCN) 5D002.C.1, which includes information security software using or performing cryptographic functions with asymmetric algorithms. 
+The U.S. Government Department of Commerce, Bureau of Industry and Security (BIS), has classified this software as Export Commodity Control Number (ECCN) 5D002.C.1, which includes information security software using or performing cryptographic functions with asymmetric algorithms.
 The form and manner of this distribution makes it eligible for export under the License Exception ENC Technology Software Unrestricted (TSU) exception (see the BIS Export Administration Regulations, Section 740.13) for both object code and source code.
 
-License
----------------------
+## License
 
 Copyright 2011 Whisper Systems
 
+Copyright 2013-2014 Open Whisper Systems
+
 Licensed under the GPLv3: http://www.gnu.org/licenses/gpl-3.0.html

androidTest/org/thoughtcrime/securesms/database/CanonicalAddressDatabaseTest.java

@@ -0,0 +1,118 @@
+package org.thoughtcrime.securesms.database;
+
+import android.test.InstrumentationTestCase;
+
+import static org.fest.assertions.api.Assertions.assertThat;
+
+public class CanonicalAddressDatabaseTest extends InstrumentationTestCase {
+  private static final String AMBIGUOUS_NUMBER = "222-3333";
+  private static final String SPECIFIC_NUMBER  = "+49 444 222 3333";
+  private static final String EMAIL            = "a@b.fom";
+  private static final String SIMILAR_EMAIL    = "a@b.com";
+  private static final String GROUP            = "__textsecure_group__!000111222333";
+  private static final String SIMILAR_GROUP    = "__textsecure_group__!100111222333";
+  private static final String ALPHA            = "T-Mobile";
+  private static final String SIMILAR_ALPHA    = "T-Mobila";
+
+  private CanonicalAddressDatabase db;
+
+  public void setUp() throws Exception {
+    super.setUp();
+    this.db = CanonicalAddressDatabase.getInstance(getInstrumentation().getTargetContext());
+  }
+
+  public void tearDown() throws Exception {
+
+  }
+
+  /**
+   * Throw two equivalent numbers (one without locale info, one with full info) at the canonical
+   * address db and see that the caching and DB operations work properly in revealing the right
+   * addresses. This is run twice to ensure cache logic is hit.
+   *
+   * @throws Exception
+   */
+  public void testNumberAddressUpdates() throws Exception {
+    final long id = db.getCanonicalAddressId(AMBIGUOUS_NUMBER);
+
+    assertThat(db.getAddressFromId(id)).isEqualTo(AMBIGUOUS_NUMBER);
+    assertThat(db.getCanonicalAddressId(SPECIFIC_NUMBER)).isEqualTo(id);
+    assertThat(db.getAddressFromId(id)).isEqualTo(SPECIFIC_NUMBER);
+    assertThat(db.getCanonicalAddressId(AMBIGUOUS_NUMBER)).isEqualTo(id);
+
+    assertThat(db.getCanonicalAddressId(AMBIGUOUS_NUMBER)).isEqualTo(id);
+    assertThat(db.getAddressFromId(id)).isEqualTo(AMBIGUOUS_NUMBER);
+    assertThat(db.getCanonicalAddressId(SPECIFIC_NUMBER)).isEqualTo(id);
+    assertThat(db.getAddressFromId(id)).isEqualTo(SPECIFIC_NUMBER);
+    assertThat(db.getCanonicalAddressId(AMBIGUOUS_NUMBER)).isEqualTo(id);
+  }
+
+  public void testSimilarNumbers() throws Exception {
+    assertThat(db.getCanonicalAddressId("This is a phone number 222-333-444"))
+        .isNotEqualTo(db.getCanonicalAddressId("222-333-4444"));
+    assertThat(db.getCanonicalAddressId("222-333-444"))
+        .isNotEqualTo(db.getCanonicalAddressId("222-333-4444"));
+    assertThat(db.getCanonicalAddressId("222-333-44"))
+        .isNotEqualTo(db.getCanonicalAddressId("222-333-4444"));
+    assertThat(db.getCanonicalAddressId("222-333-4"))
+        .isNotEqualTo(db.getCanonicalAddressId("222-333-4444"));
+    assertThat(db.getCanonicalAddressId("+49 222-333-4444"))
+        .isNotEqualTo(db.getCanonicalAddressId("+1 222-333-4444"));
+
+    assertThat(db.getCanonicalAddressId("1 222-333-4444"))
+        .isEqualTo(db.getCanonicalAddressId("222-333-4444"));
+    assertThat(db.getCanonicalAddressId("1 (222) 333-4444"))
+        .isEqualTo(db.getCanonicalAddressId("222-333-4444"));
+    assertThat(db.getCanonicalAddressId("+12223334444"))
+        .isEqualTo(db.getCanonicalAddressId("222-333-4444"));
+    assertThat(db.getCanonicalAddressId("+1 (222) 333.4444"))
+        .isEqualTo(db.getCanonicalAddressId("222-333-4444"));
+    assertThat(db.getCanonicalAddressId("+49 (222) 333.4444"))
+        .isEqualTo(db.getCanonicalAddressId("222-333-4444"));
+
+  }
+
+  public void testEmailAddresses() throws Exception {
+    final long emailId        = db.getCanonicalAddressId(EMAIL);
+    final long similarEmailId = db.getCanonicalAddressId(SIMILAR_EMAIL);
+
+    assertThat(emailId).isNotEqualTo(similarEmailId);
+
+    assertThat(db.getAddressFromId(emailId)).isEqualTo(EMAIL);
+    assertThat(db.getAddressFromId(similarEmailId)).isEqualTo(SIMILAR_EMAIL);
+  }
+
+  public void testGroups() throws Exception {
+    final long groupId        = db.getCanonicalAddressId(GROUP);
+    final long similarGroupId = db.getCanonicalAddressId(SIMILAR_GROUP);
+
+    assertThat(groupId).isNotEqualTo(similarGroupId);
+
+    assertThat(db.getAddressFromId(groupId)).isEqualTo(GROUP);
+    assertThat(db.getAddressFromId(similarGroupId)).isEqualTo(SIMILAR_GROUP);
+  }
+
+  public void testAlpha() throws Exception {
+    final long id        = db.getCanonicalAddressId(ALPHA);
+    final long similarId = db.getCanonicalAddressId(SIMILAR_ALPHA);
+
+    assertThat(id).isNotEqualTo(similarId);
+
+    assertThat(db.getAddressFromId(id)).isEqualTo(ALPHA);
+    assertThat(db.getAddressFromId(similarId)).isEqualTo(SIMILAR_ALPHA);
+  }
+
+  public void testIsNumber() throws Exception {
+    assertThat(CanonicalAddressDatabase.isNumberAddress("+495556666777")).isTrue();
+    assertThat(CanonicalAddressDatabase.isNumberAddress("(222) 333-4444")).isTrue();
+    assertThat(CanonicalAddressDatabase.isNumberAddress("1 (222) 333-4444")).isTrue();
+    assertThat(CanonicalAddressDatabase.isNumberAddress("T-Mobile123")).isTrue();
+    assertThat(CanonicalAddressDatabase.isNumberAddress("333-4444")).isTrue();
+    assertThat(CanonicalAddressDatabase.isNumberAddress("12345")).isTrue();
+    assertThat(CanonicalAddressDatabase.isNumberAddress("T-Mobile")).isFalse();
+    assertThat(CanonicalAddressDatabase.isNumberAddress("T-Mobile1")).isFalse();
+    assertThat(CanonicalAddressDatabase.isNumberAddress("Wherever bank")).isFalse();
+    assertThat(CanonicalAddressDatabase.isNumberAddress("__textsecure_group__!afafafafafaf")).isFalse();
+    assertThat(CanonicalAddressDatabase.isNumberAddress("email@domain.com")).isFalse();
+  }
+}

androidTest/org/thoughtcrime/securesms/util/PhoneNumberFormatterTest.java

@@ -0,0 +1,33 @@
+package org.thoughtcrime.securesms.util;
+
+import android.test.AndroidTestCase;
+
+import junit.framework.AssertionFailedError;
+
+import org.whispersystems.textsecure.util.InvalidNumberException;
+import org.whispersystems.textsecure.util.PhoneNumberFormatter;
+import static org.fest.assertions.api.Assertions.assertThat;
+
+public class PhoneNumberFormatterTest extends AndroidTestCase {
+  private static final String LOCAL_NUMBER = "+15555555555";
+
+  public void testFormatNumberE164() throws Exception, InvalidNumberException {
+    assertThat(PhoneNumberFormatter.formatNumber("(555) 555-5555", LOCAL_NUMBER)).isEqualTo(LOCAL_NUMBER);
+    assertThat(PhoneNumberFormatter.formatNumber("555-5555", LOCAL_NUMBER)).isEqualTo(LOCAL_NUMBER);
+    assertThat(PhoneNumberFormatter.formatNumber("(123) 555-5555", LOCAL_NUMBER)).isNotEqualTo(LOCAL_NUMBER);
+  }
+
+  public void testFormatNumberEmail() throws Exception {
+    try {
+      PhoneNumberFormatter.formatNumber("person@domain.com", LOCAL_NUMBER);
+      throw new AssertionFailedError("should have thrown on email");
+    } catch (InvalidNumberException ine) {
+      // success
+    }
+  }
+
+  @Override
+  public void setUp() throws Exception {
+    super.setUp();
+  }
+}

androidTest/org/thoughtcrime/securesms/util/UtilTest.java

@@ -0,0 +1,9 @@
+package org.thoughtcrime.securesms.util;
+
+import android.test.AndroidTestCase;
+
+import static org.fest.assertions.api.Assertions.assertThat;
+
+public class UtilTest extends AndroidTestCase {
+
+}

build.gradle

@@ -0,0 +1,114 @@
+buildscript {
+    repositories {
+        mavenCentral()
+    }
+    dependencies {
+        classpath 'com.android.tools.build:gradle:0.12.+'
+        classpath files('libs/gradle-witness.jar')
+    }
+}
+
+apply plugin: 'android'
+apply plugin: 'witness'
+
+repositories {
+    mavenCentral()
+    maven {
+        url "https://raw.github.com/whispersystems/maven/master/gcm-client/releases/"
+    }
+    maven {
+        url "https://raw.github.com/whispersystems/maven/master/gson/releases/"
+    }
+}
+
+dependencies {
+    compile 'com.actionbarsherlock:actionbarsherlock:4.4.0@aar'
+    compile 'com.android.support:support-v4:19.1.0'
+    compile 'com.google.android.gcm:gcm-client:1.0.2'
+    compile 'se.emilsjolander:stickylistheaders:2.2.0'
+
+    androidTestCompile 'com.squareup:fest-android:1.0.8'
+
+    compile project(':library')
+}
+
+dependencyVerification {
+    verify = [
+        'com.actionbarsherlock:actionbarsherlock:5ab04d74101f70024b222e3ff9c87bee151ec43331b4a2134b6cc08cf8565819',
+        'com.android.support:support-v4:3f40fa7b3a4ead01ce15dce9453b061646e7fe2e7c51cb75ca01ee1e77037f3f',
+        'com.google.android.gcm:gcm-client:5ff578202f93dcba1c210d015deb4241c7cdad9b7867bd1b32e0a5f4c16986ca',
+        'se.emilsjolander:stickylistheaders:89146b46c96fea0e40200474a2625cda10fe94891e4128f53cdb42375091b9b6',
+        'com.google.protobuf:protobuf-java:ad9769a22989e688a46af4d3accc348cc501ced22118033230542bc916e33f0b',
+        'com.madgag:sc-light-jdk15on:931f39d351429fb96c2f749e7ecb1a256a8ebbf5edca7995c9cc085b94d1841d',
+        'com.googlecode.libphonenumber:libphonenumber:eba17eae81dd622ea89a00a3a8c025b2f25d342e0d9644c5b62e16f15687c3ab',
+        'org.whispersystems:gson:08f4f7498455d1539c9233e5aac18e9b1805815ef29221572996508eb512fe51',
+    ]
+}
+
+android {
+    compileSdkVersion 19
+    buildToolsVersion '19.1.0'
+
+    defaultConfig {
+        minSdkVersion 9
+        targetSdkVersion 19
+    }
+
+    android {
+        sourceSets {
+            main {
+                manifest.srcFile 'AndroidManifest.xml'
+                java.srcDirs = ['src']
+                resources.srcDirs = ['src']
+                aidl.srcDirs = ['src']
+                renderscript.srcDirs = ['src']
+                res.srcDirs = ['res']
+                assets.srcDirs = ['assets']
+            }
+            androidTest {
+                java.srcDirs = ['androidTest']
+                resources.srcDirs = ['androidTest']
+                aidl.srcDirs = ['androidTest']
+                renderscript.srcDirs = ['androidTest']
+            }
+        }
+    }
+
+    signingConfigs {
+        release
+    }
+    buildTypes {
+        release {
+            signingConfig signingConfigs.release
+        }
+    }
+
+     lintOptions {
+        abortOnError false
+    }
+}
+
+def Properties props = new Properties()
+def propFile = new File('signing.properties')
+
+if (propFile.canRead()){
+    props.load(new FileInputStream(propFile))
+
+    if (props !=null &&
+        props.containsKey('STORE_FILE')     &&
+        props.containsKey('STORE_PASSWORD') &&
+        props.containsKey('KEY_ALIAS')      &&
+        props.containsKey('KEY_PASSWORD'))
+    {
+        android.signingConfigs.release.storeFile = file(props['STORE_FILE'])
+        android.signingConfigs.release.storePassword = props['STORE_PASSWORD']
+        android.signingConfigs.release.keyAlias = props['KEY_ALIAS']
+        android.signingConfigs.release.keyPassword = props['KEY_PASSWORD']
+    } else {
+        println 'signing.properties found but some entries are missing'
+        android.buildTypes.release.signingConfig = null
+    }
+}else {
+    println 'signing.properties not found'
+    android.buildTypes.release.signingConfig = null
+}

contributing.md

@@ -0,0 +1,30 @@
+##Translations
+
+Please do not submit issues or pull requests for translation fixes. Anyone can update the translations in [Transifex](https://www.transifex.com/projects/p/textsecure-official/). Please submit your corrections there.
+
+## Submitting useful bug reports
+1. Search our issues first to make sure this is not a duplicate.
+1. Read the [Submitting useful bug reports guide](https://github.com/WhisperSystems/TextSecure/wiki/Submitting-useful-bug-reports) before posting a bug.
+
+## Development Ideology
+
+Truths which we believe to be self-evident:
+
+1. **The answer is not more options.**  If you feel compelled to add a
+   preference that's exposed to the user, it's very possible you've made
+   a wrong turn somewhere.
+1. **The user doesn't know what a key is.**  We need to minimize the points
+   at which a user is exposed to this sort of terminology as extremely as
+   possible.
+1. **There are no power users.** The idea that some users "understand"
+   concepts better than others has proven to be, for the most part, false.
+   If anything, "power users" are more dangerous than the rest, and we
+   should avoid exposing dangerous functionality to them.
+1. **If it's "like PGP," it's wrong.**  PGP is our spirit guide for what
+   not to do.
+1. **It's an asynchronous world.**  Be wary of anything that is
+   anti-asynchronous: ACKs, protocol confirmations, or any protocol-level
+   "advisory" message.
+1. **There is no such thing as time.** Protocol ideas that require synchronized
+   clocks are doomed to failure. 
+

gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,6 @@
+#Mon Jun 09 23:26:49 PDT 2014
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=http\://services.gradle.org/distributions/gradle-1.12-all.zip

gradlew

@@ -0,0 +1,164 @@
+#!/usr/bin/env bash
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn ( ) {
+    echo "$*"
+}
+
+die ( ) {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+esac
+
+# For Cygwin, ensure paths are in UNIX format before anything is touched.
+if $cygwin ; then
+    [ -n "$JAVA_HOME" ] && JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
+fi
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >&-
+APP_HOME="`pwd -P`"
+cd "$SAVED" >&-
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules
+function splitJvmOpts() {
+    JVM_OPTS=("$@")
+}
+eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
+JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"
+
+exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"

gradlew.bat

@@ -0,0 +1,90 @@
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windowz variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+if "%@eval[2+2]" == "4" goto 4NT_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+goto execute
+
+:4NT_args
+@rem Get arguments from the 4NT Shell from JP Software
+set CMD_LINE_ARGS=%$
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega

library/AndroidManifest.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+          package="org.whispersystems.textsecure"
+          android:versionCode="1"
+          android:versionName="0.1">
+    <uses-sdk android:minSdkVersion="9" android:targetSdkVersion="16"/>
+    <application />
+</manifest>

library/build.gradle

@@ -0,0 +1,58 @@
+buildscript {
+    repositories {
+        mavenCentral()
+    }
+
+    dependencies {
+        classpath 'com.android.tools.build:gradle:0.12.+'
+    }
+}
+
+apply plugin: 'android-library'
+apply plugin: 'maven'
+
+repositories {
+    mavenCentral()
+    maven {
+        url "https://raw.github.com/whispersystems/maven/master/gson/releases/"
+    }
+}
+
+dependencies {
+    compile 'com.google.protobuf:protobuf-java:2.4.1'
+    compile 'com.madgag:sc-light-jdk15on:1.47.0.2'
+    compile 'com.googlecode.libphonenumber:libphonenumber:6.1'
+    compile 'org.whispersystems:gson:2.2.4'
+}
+
+android {
+    compileSdkVersion 19
+    buildToolsVersion '19.1.0'
+
+    android {
+        sourceSets {
+            main {
+                manifest.srcFile 'AndroidManifest.xml'
+                java.srcDirs = ['src']
+                resources.srcDirs = ['src']
+                aidl.srcDirs = ['src']
+                renderscript.srcDirs = ['src']
+                res.srcDirs = ['res']
+                assets.srcDirs = ['assets']
+                jniLibs.srcDirs = ['libs']
+            }
+        }
+    }
+}
+
+version '0.1'
+group 'org.whispersystems.textsecure'
+archivesBaseName = 'textsecure-library'
+
+uploadArchives {
+    repositories {
+        mavenDeployer {
+            repository(url: mavenLocal().getUrl())
+        }
+    }
+}

library/build.xml

@@ -0,0 +1,92 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project name="library" default="help">
+
+    <!-- The local.properties file is created and updated by the 'android' tool.
+         It contains the path to the SDK. It should *NOT* be checked into
+         Version Control Systems. -->
+    <property file="local.properties"/>
+
+    <!-- The ant.properties file can be created by you. It is only edited by the
+         'android' tool to add properties to it.
+         This is the place to change some Ant specific build properties.
+         Here are some properties you may want to change/update:
+
+         source.dir
+             The name of the source directory. Default is 'src'.
+         out.dir
+             The name of the output directory. Default is 'bin'.
+
+         For other overridable properties, look at the beginning of the rules
+         files in the SDK, at tools/ant/build.xml
+
+         Properties related to the SDK location or the project target should
+         be updated using the 'android' tool with the 'update' action.
+
+         This file is an integral part of the build system for your
+         application and should be checked into Version Control Systems.
+
+         -->
+    <property file="ant.properties"/>
+
+    <!-- if sdk.dir was not set from one of the property file, then
+         get it from the ANDROID_HOME env var.
+         This must be done before we load project.properties since
+         the proguard config can use sdk.dir -->
+    <property environment="env"/>
+    <condition property="sdk.dir" value="${env.ANDROID_HOME}">
+        <isset property="env.ANDROID_HOME"/>
+    </condition>
+
+    <!-- The project.properties file is created and updated by the 'android'
+         tool, as well as ADT.
+
+         This contains project specific properties such as project target, and library
+         dependencies. Lower level build properties are stored in ant.properties
+         (or in .classpath for Eclipse projects).
+
+         This file is an integral part of the build system for your
+         application and should be checked into Version Control Systems. -->
+    <loadproperties srcFile="project.properties"/>
+
+    <!-- quick check on sdk.dir -->
+    <fail
+            message="sdk.dir is missing. Make sure to generate local.properties using 'android update project' or to inject it through the ANDROID_HOME environment variable."
+            unless="sdk.dir"
+            />
+
+    <!--
+        Import per project custom build rules if present at the root of the project.
+        This is the place to put custom intermediary targets such as:
+            -pre-build
+            -pre-compile
+            -post-compile (This is typically used for code obfuscation.
+                           Compiled code location: ${out.classes.absolute.dir}
+                           If this is not done in place, override ${out.dex.input.absolute.dir})
+            -post-package
+            -post-build
+            -pre-clean
+    -->
+    <import file="custom_rules.xml" optional="true"/>
+
+    <!-- Import the actual build file.
+
+         To customize existing targets, there are two options:
+         - Customize only one target:
+             - copy/paste the target into this file, *before* the
+               <import> task.
+             - customize it to your needs.
+         - Customize the whole content of build.xml
+             - copy/paste the content of the rules files (minus the top node)
+               into this file, replacing the <import> task.
+             - customize to your needs.
+
+         ***********************
+         ****** IMPORTANT ******
+         ***********************
+         In all cases you must update the value of version-tag below to read 'custom' instead of an integer,
+         in order to avoid having your file be overridden by tools such as "android update project"
+    -->
+    <!-- version-tag: 1 -->
+    <import file="${sdk.dir}/tools/ant/build.xml"/>
+
+</project>

library/jni/Android.mk

@@ -0,0 +1,17 @@
+LOCAL_PATH:= $(call my-dir)
+
+include $(CLEAR_VARS)
+
+LOCAL_MODULE    := libcurve25519-donna
+LOCAL_SRC_FILES := curve25519-donna.c
+
+include $(BUILD_STATIC_LIBRARY)
+
+include $(CLEAR_VARS)
+
+LOCAL_MODULE    := libcurve25519
+LOCAL_SRC_FILES := curve25519-donna-jni.c
+
+LOCAL_STATIC_LIBRARIES := libcurve25519-donna
+
+include $(BUILD_SHARED_LIBRARY)

library/jni/Application.mk

@@ -0,0 +1 @@
+APP_ABI := armeabi armeabi-v7a x86

library/jni/curve25519-donna-jni.c

@@ -0,0 +1,75 @@
+/**
+ * Copyright (C) 2013 Open Whisper Systems
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <string.h>
+#include <stdint.h>
+
+#include <jni.h>
+#include "curve25519-donna.h"
+
+JNIEXPORT jbyteArray JNICALL Java_org_whispersystems_textsecure_crypto_ecc_Curve25519_generatePrivateKey
+  (JNIEnv *env, jclass clazz, jbyteArray random, jboolean ephemeral)
+{
+  uint8_t* privateKey = (uint8_t*)(*env)->GetByteArrayElements(env, random, 0);
+
+  privateKey[0] &= 248;
+
+  if (ephemeral) {
+    privateKey[0] |= 1;
+  }
+
+  privateKey[31] &= 127;
+  privateKey[31] |= 64;
+
+  (*env)->ReleaseByteArrayElements(env, random, privateKey, 0);
+
+  return random;
+}
+
+JNIEXPORT jbyteArray JNICALL Java_org_whispersystems_textsecure_crypto_ecc_Curve25519_generatePublicKey
+  (JNIEnv *env, jclass clazz, jbyteArray privateKey)
+{
+    static const uint8_t  basepoint[32] = {9};
+
+    jbyteArray publicKey       = (*env)->NewByteArray(env, 32);
+    uint8_t*   publicKeyBytes  = (uint8_t*)(*env)->GetByteArrayElements(env, publicKey, 0);
+    uint8_t*   privateKeyBytes = (uint8_t*)(*env)->GetByteArrayElements(env, privateKey, 0);
+
+    curve25519_donna(publicKeyBytes, privateKeyBytes, basepoint);
+
+    (*env)->ReleaseByteArrayElements(env, publicKey, publicKeyBytes, 0);
+    (*env)->ReleaseByteArrayElements(env, privateKey, privateKeyBytes, 0);
+
+    return publicKey;
+}
+
+JNIEXPORT jbyteArray JNICALL Java_org_whispersystems_textsecure_crypto_ecc_Curve25519_calculateAgreement
+  (JNIEnv *env, jclass clazz, jbyteArray privateKey, jbyteArray publicKey)
+{
+    jbyteArray sharedKey       = (*env)->NewByteArray(env, 32);
+    uint8_t*   sharedKeyBytes  = (uint8_t*)(*env)->GetByteArrayElements(env, sharedKey, 0);
+    uint8_t*   privateKeyBytes = (uint8_t*)(*env)->GetByteArrayElements(env, privateKey, 0);
+    uint8_t*   publicKeyBytes  = (uint8_t*)(*env)->GetByteArrayElements(env, publicKey, 0);
+
+    curve25519_donna(sharedKeyBytes, privateKeyBytes, publicKeyBytes);
+
+    (*env)->ReleaseByteArrayElements(env, sharedKey, sharedKeyBytes, 0);
+    (*env)->ReleaseByteArrayElements(env, publicKey, publicKeyBytes, 0);
+    (*env)->ReleaseByteArrayElements(env, privateKey, privateKeyBytes, 0);
+
+    return sharedKey;
+}

library/jni/curve25519-donna.c

@@ -0,0 +1,731 @@
+/* Copyright 2008, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * curve25519-donna: Curve25519 elliptic curve, public key function
+ *
+ * http://code.google.com/p/curve25519-donna/
+ *
+ * Adam Langley <agl@imperialviolet.org>
+ *
+ * Derived from public domain C code by Daniel J. Bernstein <djb@cr.yp.to>
+ *
+ * More information about curve25519 can be found here
+ *   http://cr.yp.to/ecdh.html
+ *
+ * djb's sample implementation of curve25519 is written in a special assembly
+ * language called qhasm and uses the floating point registers.
+ *
+ * This is, almost, a clean room reimplementation from the curve25519 paper. It
+ * uses many of the tricks described therein. Only the crecip function is taken
+ * from the sample implementation.
+ */
+
+#include <string.h>
+#include <stdint.h>
+
+#ifdef _MSC_VER
+#define inline __inline
+#endif
+
+typedef uint8_t u8;
+typedef int32_t s32;
+typedef int64_t limb;
+
+/* Field element representation:
+ *
+ * Field elements are written as an array of signed, 64-bit limbs, least
+ * significant first. The value of the field element is:
+ *   x[0] + 2^26·x[1] + x^51·x[2] + 2^102·x[3] + ...
+ *
+ * i.e. the limbs are 26, 25, 26, 25, ... bits wide.
+ */
+
+/* Sum two numbers: output += in */
+static void fsum(limb *output, const limb *in) {
+  unsigned i;
+  for (i = 0; i < 10; i += 2) {
+    output[0+i] = (output[0+i] + in[0+i]);
+    output[1+i] = (output[1+i] + in[1+i]);
+  }
+}
+
+/* Find the difference of two numbers: output = in - output
+ * (note the order of the arguments!)
+ */
+static void fdifference(limb *output, const limb *in) {
+  unsigned i;
+  for (i = 0; i < 10; ++i) {
+    output[i] = (in[i] - output[i]);
+  }
+}
+
+/* Multiply a number by a scalar: output = in * scalar */
+static void fscalar_product(limb *output, const limb *in, const limb scalar) {
+  unsigned i;
+  for (i = 0; i < 10; ++i) {
+    output[i] = in[i] * scalar;
+  }
+}
+
+/* Multiply two numbers: output = in2 * in
+ *
+ * output must be distinct to both inputs. The inputs are reduced coefficient
+ * form, the output is not.
+ */
+static void fproduct(limb *output, const limb *in2, const limb *in) {
+  output[0] =       ((limb) ((s32) in2[0])) * ((s32) in[0]);
+  output[1] =       ((limb) ((s32) in2[0])) * ((s32) in[1]) +
+                    ((limb) ((s32) in2[1])) * ((s32) in[0]);
+  output[2] =  2 *  ((limb) ((s32) in2[1])) * ((s32) in[1]) +
+                    ((limb) ((s32) in2[0])) * ((s32) in[2]) +
+                    ((limb) ((s32) in2[2])) * ((s32) in[0]);
+  output[3] =       ((limb) ((s32) in2[1])) * ((s32) in[2]) +
+                    ((limb) ((s32) in2[2])) * ((s32) in[1]) +
+                    ((limb) ((s32) in2[0])) * ((s32) in[3]) +
+                    ((limb) ((s32) in2[3])) * ((s32) in[0]);
+  output[4] =       ((limb) ((s32) in2[2])) * ((s32) in[2]) +
+               2 * (((limb) ((s32) in2[1])) * ((s32) in[3]) +
+                    ((limb) ((s32) in2[3])) * ((s32) in[1])) +
+                    ((limb) ((s32) in2[0])) * ((s32) in[4]) +
+                    ((limb) ((s32) in2[4])) * ((s32) in[0]);
+  output[5] =       ((limb) ((s32) in2[2])) * ((s32) in[3]) +
+                    ((limb) ((s32) in2[3])) * ((s32) in[2]) +
+                    ((limb) ((s32) in2[1])) * ((s32) in[4]) +
+                    ((limb) ((s32) in2[4])) * ((s32) in[1]) +
+                    ((limb) ((s32) in2[0])) * ((s32) in[5]) +
+                    ((limb) ((s32) in2[5])) * ((s32) in[0]);
+  output[6] =  2 * (((limb) ((s32) in2[3])) * ((s32) in[3]) +
+                    ((limb) ((s32) in2[1])) * ((s32) in[5]) +
+                    ((limb) ((s32) in2[5])) * ((s32) in[1])) +
+                    ((limb) ((s32) in2[2])) * ((s32) in[4]) +
+                    ((limb) ((s32) in2[4])) * ((s32) in[2]) +
+                    ((limb) ((s32) in2[0])) * ((s32) in[6]) +
+                    ((limb) ((s32) in2[6])) * ((s32) in[0]);
+  output[7] =       ((limb) ((s32) in2[3])) * ((s32) in[4]) +
+                    ((limb) ((s32) in2[4])) * ((s32) in[3]) +
+                    ((limb) ((s32) in2[2])) * ((s32) in[5]) +
+                    ((limb) ((s32) in2[5])) * ((s32) in[2]) +
+                    ((limb) ((s32) in2[1])) * ((s32) in[6]) +
+                    ((limb) ((s32) in2[6])) * ((s32) in[1]) +
+                    ((limb) ((s32) in2[0])) * ((s32) in[7]) +
+                    ((limb) ((s32) in2[7])) * ((s32) in[0]);
+  output[8] =       ((limb) ((s32) in2[4])) * ((s32) in[4]) +
+               2 * (((limb) ((s32) in2[3])) * ((s32) in[5]) +
+                    ((limb) ((s32) in2[5])) * ((s32) in[3]) +
+                    ((limb) ((s32) in2[1])) * ((s32) in[7]) +
+                    ((limb) ((s32) in2[7])) * ((s32) in[1])) +
+                    ((limb) ((s32) in2[2])) * ((s32) in[6]) +
+                    ((limb) ((s32) in2[6])) * ((s32) in[2]) +
+                    ((limb) ((s32) in2[0])) * ((s32) in[8]) +
+                    ((limb) ((s32) in2[8])) * ((s32) in[0]);
+  output[9] =       ((limb) ((s32) in2[4])) * ((s32) in[5]) +
+                    ((limb) ((s32) in2[5])) * ((s32) in[4]) +
+                    ((limb) ((s32) in2[3])) * ((s32) in[6]) +
+                    ((limb) ((s32) in2[6])) * ((s32) in[3]) +
+                    ((limb) ((s32) in2[2])) * ((s32) in[7]) +
+                    ((limb) ((s32) in2[7])) * ((s32) in[2]) +
+                    ((limb) ((s32) in2[1])) * ((s32) in[8]) +
+                    ((limb) ((s32) in2[8])) * ((s32) in[1]) +
+                    ((limb) ((s32) in2[0])) * ((s32) in[9]) +
+                    ((limb) ((s32) in2[9])) * ((s32) in[0]);
+  output[10] = 2 * (((limb) ((s32) in2[5])) * ((s32) in[5]) +
+                    ((limb) ((s32) in2[3])) * ((s32) in[7]) +
+                    ((limb) ((s32) in2[7])) * ((s32) in[3]) +
+                    ((limb) ((s32) in2[1])) * ((s32) in[9]) +
+                    ((limb) ((s32) in2[9])) * ((s32) in[1])) +
+                    ((limb) ((s32) in2[4])) * ((s32) in[6]) +
+                    ((limb) ((s32) in2[6])) * ((s32) in[4]) +
+                    ((limb) ((s32) in2[2])) * ((s32) in[8]) +
+                    ((limb) ((s32) in2[8])) * ((s32) in[2]);
+  output[11] =      ((limb) ((s32) in2[5])) * ((s32) in[6]) +
+                    ((limb) ((s32) in2[6])) * ((s32) in[5]) +
+                    ((limb) ((s32) in2[4])) * ((s32) in[7]) +
+                    ((limb) ((s32) in2[7])) * ((s32) in[4]) +
+                    ((limb) ((s32) in2[3])) * ((s32) in[8]) +
+                    ((limb) ((s32) in2[8])) * ((s32) in[3]) +
+                    ((limb) ((s32) in2[2])) * ((s32) in[9]) +
+                    ((limb) ((s32) in2[9])) * ((s32) in[2]);
+  output[12] =      ((limb) ((s32) in2[6])) * ((s32) in[6]) +
+               2 * (((limb) ((s32) in2[5])) * ((s32) in[7]) +
+                    ((limb) ((s32) in2[7])) * ((s32) in[5]) +
+                    ((limb) ((s32) in2[3])) * ((s32) in[9]) +
+                    ((limb) ((s32) in2[9])) * ((s32) in[3])) +
+                    ((limb) ((s32) in2[4])) * ((s32) in[8]) +
+                    ((limb) ((s32) in2[8])) * ((s32) in[4]);
+  output[13] =      ((limb) ((s32) in2[6])) * ((s32) in[7]) +
+                    ((limb) ((s32) in2[7])) * ((s32) in[6]) +
+                    ((limb) ((s32) in2[5])) * ((s32) in[8]) +
+                    ((limb) ((s32) in2[8])) * ((s32) in[5]) +
+                    ((limb) ((s32) in2[4])) * ((s32) in[9]) +
+                    ((limb) ((s32) in2[9])) * ((s32) in[4]);
+  output[14] = 2 * (((limb) ((s32) in2[7])) * ((s32) in[7]) +
+                    ((limb) ((s32) in2[5])) * ((s32) in[9]) +
+                    ((limb) ((s32) in2[9])) * ((s32) in[5])) +
+                    ((limb) ((s32) in2[6])) * ((s32) in[8]) +
+                    ((limb) ((s32) in2[8])) * ((s32) in[6]);
+  output[15] =      ((limb) ((s32) in2[7])) * ((s32) in[8]) +
+                    ((limb) ((s32) in2[8])) * ((s32) in[7]) +
+                    ((limb) ((s32) in2[6])) * ((s32) in[9]) +
+                    ((limb) ((s32) in2[9])) * ((s32) in[6]);
+  output[16] =      ((limb) ((s32) in2[8])) * ((s32) in[8]) +
+               2 * (((limb) ((s32) in2[7])) * ((s32) in[9]) +
+                    ((limb) ((s32) in2[9])) * ((s32) in[7]));
+  output[17] =      ((limb) ((s32) in2[8])) * ((s32) in[9]) +
+                    ((limb) ((s32) in2[9])) * ((s32) in[8]);
+  output[18] = 2 *  ((limb) ((s32) in2[9])) * ((s32) in[9]);
+}
+
+/* Reduce a long form to a short form by taking the input mod 2^255 - 19. */
+static void freduce_degree(limb *output) {
+  /* Each of these shifts and adds ends up multiplying the value by 19. */
+  output[8] += output[18] << 4;
+  output[8] += output[18] << 1;
+  output[8] += output[18];
+  output[7] += output[17] << 4;
+  output[7] += output[17] << 1;
+  output[7] += output[17];
+  output[6] += output[16] << 4;
+  output[6] += output[16] << 1;
+  output[6] += output[16];
+  output[5] += output[15] << 4;
+  output[5] += output[15] << 1;
+  output[5] += output[15];
+  output[4] += output[14] << 4;
+  output[4] += output[14] << 1;
+  output[4] += output[14];
+  output[3] += output[13] << 4;
+  output[3] += output[13] << 1;
+  output[3] += output[13];
+  output[2] += output[12] << 4;
+  output[2] += output[12] << 1;
+  output[2] += output[12];
+  output[1] += output[11] << 4;
+  output[1] += output[11] << 1;
+  output[1] += output[11];
+  output[0] += output[10] << 4;
+  output[0] += output[10] << 1;
+  output[0] += output[10];
+}
+
+#if (-1 & 3) != 3
+#error "This code only works on a two's complement system"
+#endif
+
+/* return v / 2^26, using only shifts and adds. */
+static inline limb
+div_by_2_26(const limb v)
+{
+  /* High word of v; no shift needed*/
+  const uint32_t highword = (uint32_t) (((uint64_t) v) >> 32);
+  /* Set to all 1s if v was negative; else set to 0s. */
+  const int32_t sign = ((int32_t) highword) >> 31;
+  /* Set to 0x3ffffff if v was negative; else set to 0. */
+  const int32_t roundoff = ((uint32_t) sign) >> 6;
+  /* Should return v / (1<<26) */
+  return (v + roundoff) >> 26;
+}
+
+/* return v / (2^25), using only shifts and adds. */
+static inline limb
+div_by_2_25(const limb v)
+{
+  /* High word of v; no shift needed*/
+  const uint32_t highword = (uint32_t) (((uint64_t) v) >> 32);
+  /* Set to all 1s if v was negative; else set to 0s. */
+  const int32_t sign = ((int32_t) highword) >> 31;
+  /* Set to 0x1ffffff if v was negative; else set to 0. */
+  const int32_t roundoff = ((uint32_t) sign) >> 7;
+  /* Should return v / (1<<25) */
+  return (v + roundoff) >> 25;
+}
+
+static inline s32
+div_s32_by_2_25(const s32 v)
+{
+   const s32 roundoff = ((uint32_t)(v >> 31)) >> 7;
+   return (v + roundoff) >> 25;
+}
+
+/* Reduce all coefficients of the short form input so that |x| < 2^26.
+ *
+ * On entry: |output[i]| < 2^62
+ */
+static void freduce_coefficients(limb *output) {
+  unsigned i;
+
+  output[10] = 0;
+
+  for (i = 0; i < 10; i += 2) {
+    limb over = div_by_2_26(output[i]);
+    output[i] -= over << 26;
+    output[i+1] += over;
+
+    over = div_by_2_25(output[i+1]);
+    output[i+1] -= over << 25;
+    output[i+2] += over;
+  }
+  /* Now |output[10]| < 2 ^ 38 and all other coefficients are reduced. */
+  output[0] += output[10] << 4;
+  output[0] += output[10] << 1;
+  output[0] += output[10];
+
+  output[10] = 0;
+
+  /* Now output[1..9] are reduced, and |output[0]| < 2^26 + 19 * 2^38
+   * So |over| will be no more than 77825  */
+  {
+    limb over = div_by_2_26(output[0]);
+    output[0] -= over << 26;
+    output[1] += over;
+  }
+
+  /* Now output[0,2..9] are reduced, and |output[1]| < 2^25 + 77825
+   * So |over| will be no more than 1. */
+  {
+    /* output[1] fits in 32 bits, so we can use div_s32_by_2_25 here. */
+    s32 over32 = div_s32_by_2_25((s32) output[1]);
+    output[1] -= over32 << 25;
+    output[2] += over32;
+  }
+
+  /* Finally, output[0,1,3..9] are reduced, and output[2] is "nearly reduced":
+   * we have |output[2]| <= 2^26.  This is good enough for all of our math,
+   * but it will require an extra freduce_coefficients before fcontract. */
+}
+
+/* A helpful wrapper around fproduct: output = in * in2.
+ *
+ * output must be distinct to both inputs. The output is reduced degree and
+ * reduced coefficient.
+ */
+static void
+fmul(limb *output, const limb *in, const limb *in2) {
+  limb t[19];
+  fproduct(t, in, in2);
+  freduce_degree(t);
+  freduce_coefficients(t);
+  memcpy(output, t, sizeof(limb) * 10);
+}
+
+static void fsquare_inner(limb *output, const limb *in) {
+  output[0] =       ((limb) ((s32) in[0])) * ((s32) in[0]);
+  output[1] =  2 *  ((limb) ((s32) in[0])) * ((s32) in[1]);
+  output[2] =  2 * (((limb) ((s32) in[1])) * ((s32) in[1]) +
+                    ((limb) ((s32) in[0])) * ((s32) in[2]));
+  output[3] =  2 * (((limb) ((s32) in[1])) * ((s32) in[2]) +
+                    ((limb) ((s32) in[0])) * ((s32) in[3]));
+  output[4] =       ((limb) ((s32) in[2])) * ((s32) in[2]) +
+               4 *  ((limb) ((s32) in[1])) * ((s32) in[3]) +
+               2 *  ((limb) ((s32) in[0])) * ((s32) in[4]);
+  output[5] =  2 * (((limb) ((s32) in[2])) * ((s32) in[3]) +
+                    ((limb) ((s32) in[1])) * ((s32) in[4]) +
+                    ((limb) ((s32) in[0])) * ((s32) in[5]));
+  output[6] =  2 * (((limb) ((s32) in[3])) * ((s32) in[3]) +
+                    ((limb) ((s32) in[2])) * ((s32) in[4]) +
+                    ((limb) ((s32) in[0])) * ((s32) in[6]) +
+               2 *  ((limb) ((s32) in[1])) * ((s32) in[5]));
+  output[7] =  2 * (((limb) ((s32) in[3])) * ((s32) in[4]) +
+                    ((limb) ((s32) in[2])) * ((s32) in[5]) +
+                    ((limb) ((s32) in[1])) * ((s32) in[6]) +
+                    ((limb) ((s32) in[0])) * ((s32) in[7]));
+  output[8] =       ((limb) ((s32) in[4])) * ((s32) in[4]) +
+               2 * (((limb) ((s32) in[2])) * ((s32) in[6]) +
+                    ((limb) ((s32) in[0])) * ((s32) in[8]) +
+               2 * (((limb) ((s32) in[1])) * ((s32) in[7]) +
+                    ((limb) ((s32) in[3])) * ((s32) in[5])));
+  output[9] =  2 * (((limb) ((s32) in[4])) * ((s32) in[5]) +
+                    ((limb) ((s32) in[3])) * ((s32) in[6]) +
+                    ((limb) ((s32) in[2])) * ((s32) in[7]) +
+                    ((limb) ((s32) in[1])) * ((s32) in[8]) +
+                    ((limb) ((s32) in[0])) * ((s32) in[9]));
+  output[10] = 2 * (((limb) ((s32) in[5])) * ((s32) in[5]) +
+                    ((limb) ((s32) in[4])) * ((s32) in[6]) +
+                    ((limb) ((s32) in[2])) * ((s32) in[8]) +
+               2 * (((limb) ((s32) in[3])) * ((s32) in[7]) +
+                    ((limb) ((s32) in[1])) * ((s32) in[9])));
+  output[11] = 2 * (((limb) ((s32) in[5])) * ((s32) in[6]) +
+                    ((limb) ((s32) in[4])) * ((s32) in[7]) +
+                    ((limb) ((s32) in[3])) * ((s32) in[8]) +
+                    ((limb) ((s32) in[2])) * ((s32) in[9]));
+  output[12] =      ((limb) ((s32) in[6])) * ((s32) in[6]) +
+               2 * (((limb) ((s32) in[4])) * ((s32) in[8]) +
+               2 * (((limb) ((s32) in[5])) * ((s32) in[7]) +
+                    ((limb) ((s32) in[3])) * ((s32) in[9])));
+  output[13] = 2 * (((limb) ((s32) in[6])) * ((s32) in[7]) +
+                    ((limb) ((s32) in[5])) * ((s32) in[8]) +
+                    ((limb) ((s32) in[4])) * ((s32) in[9]));
+  output[14] = 2 * (((limb) ((s32) in[7])) * ((s32) in[7]) +
+                    ((limb) ((s32) in[6])) * ((s32) in[8]) +
+               2 *  ((limb) ((s32) in[5])) * ((s32) in[9]));
+  output[15] = 2 * (((limb) ((s32) in[7])) * ((s32) in[8]) +
+                    ((limb) ((s32) in[6])) * ((s32) in[9]));
+  output[16] =      ((limb) ((s32) in[8])) * ((s32) in[8]) +
+               4 *  ((limb) ((s32) in[7])) * ((s32) in[9]);
+  output[17] = 2 *  ((limb) ((s32) in[8])) * ((s32) in[9]);
+  output[18] = 2 *  ((limb) ((s32) in[9])) * ((s32) in[9]);
+}
+
+static void
+fsquare(limb *output, const limb *in) {
+  limb t[19];
+  fsquare_inner(t, in);
+  freduce_degree(t);
+  freduce_coefficients(t);
+  memcpy(output, t, sizeof(limb) * 10);
+}
+
+/* Take a little-endian, 32-byte number and expand it into polynomial form */
+static void
+fexpand(limb *output, const u8 *input) {
+#define F(n,start,shift,mask) \
+  output[n] = ((((limb) input[start + 0]) | \
+                ((limb) input[start + 1]) << 8 | \
+                ((limb) input[start + 2]) << 16 | \
+                ((limb) input[start + 3]) << 24) >> shift) & mask;
+  F(0, 0, 0, 0x3ffffff);
+  F(1, 3, 2, 0x1ffffff);
+  F(2, 6, 3, 0x3ffffff);
+  F(3, 9, 5, 0x1ffffff);
+  F(4, 12, 6, 0x3ffffff);
+  F(5, 16, 0, 0x1ffffff);
+  F(6, 19, 1, 0x3ffffff);
+  F(7, 22, 3, 0x1ffffff);
+  F(8, 25, 4, 0x3ffffff);
+  F(9, 28, 6, 0x3ffffff);
+#undef F
+}
+
+#if (-32 >> 1) != -16
+#error "This code only works when >> does sign-extension on negative numbers"
+#endif
+
+/* Take a fully reduced polynomial form number and contract it into a
+ * little-endian, 32-byte array
+ */
+static void
+fcontract(u8 *output, limb *input) {
+  int i;
+  int j;
+
+  for (j = 0; j < 2; ++j) {
+    for (i = 0; i < 9; ++i) {
+      if ((i & 1) == 1) {
+        /* This calculation is a time-invariant way to make input[i] positive
+           by borrowing from the next-larger limb.
+        */
+        const s32 mask = (s32)(input[i]) >> 31;
+        const s32 carry = -(((s32)(input[i]) & mask) >> 25);
+        input[i] = (s32)(input[i]) + (carry << 25);
+        input[i+1] = (s32)(input[i+1]) - carry;
+      } else {
+        const s32 mask = (s32)(input[i]) >> 31;
+        const s32 carry = -(((s32)(input[i]) & mask) >> 26);
+        input[i] = (s32)(input[i]) + (carry << 26);
+        input[i+1] = (s32)(input[i+1]) - carry;
+      }
+    }
+    {
+      const s32 mask = (s32)(input[9]) >> 31;
+      const s32 carry = -(((s32)(input[9]) & mask) >> 25);
+      input[9] = (s32)(input[9]) + (carry << 25);
+      input[0] = (s32)(input[0]) - (carry * 19);
+    }
+  }
+
+  /* The first borrow-propagation pass above ended with every limb
+     except (possibly) input[0] non-negative.
+
+     Since each input limb except input[0] is decreased by at most 1
+     by a borrow-propagation pass, the second borrow-propagation pass
+     could only have wrapped around to decrease input[0] again if the
+     first pass left input[0] negative *and* input[1] through input[9]
+     were all zero.  In that case, input[1] is now 2^25 - 1, and this
+     last borrow-propagation step will leave input[1] non-negative.
+  */
+  {
+    const s32 mask = (s32)(input[0]) >> 31;
+    const s32 carry = -(((s32)(input[0]) & mask) >> 26);
+    input[0] = (s32)(input[0]) + (carry << 26);
+    input[1] = (s32)(input[1]) - carry;
+  }
+
+  /* Both passes through the above loop, plus the last 0-to-1 step, are
+     necessary: if input[9] is -1 and input[0] through input[8] are 0,
+     negative values will remain in the array until the end.
+   */
+
+  input[1] <<= 2;
+  input[2] <<= 3;
+  input[3] <<= 5;
+  input[4] <<= 6;
+  input[6] <<= 1;
+  input[7] <<= 3;
+  input[8] <<= 4;
+  input[9] <<= 6;
+#define F(i, s) \
+  output[s+0] |=  input[i] & 0xff; \
+  output[s+1]  = (input[i] >> 8) & 0xff; \
+  output[s+2]  = (input[i] >> 16) & 0xff; \
+  output[s+3]  = (input[i] >> 24) & 0xff;
+  output[0] = 0;
+  output[16] = 0;
+  F(0,0);
+  F(1,3);
+  F(2,6);
+  F(3,9);
+  F(4,12);
+  F(5,16);
+  F(6,19);
+  F(7,22);
+  F(8,25);
+  F(9,28);
+#undef F
+}
+
+/* Input: Q, Q', Q-Q'
+ * Output: 2Q, Q+Q'
+ *
+ *   x2 z3: long form
+ *   x3 z3: long form
+ *   x z: short form, destroyed
+ *   xprime zprime: short form, destroyed
+ *   qmqp: short form, preserved
+ */
+static void fmonty(limb *x2, limb *z2,  /* output 2Q */
+                   limb *x3, limb *z3,  /* output Q + Q' */
+                   limb *x, limb *z,    /* input Q */
+                   limb *xprime, limb *zprime,  /* input Q' */
+                   const limb *qmqp /* input Q - Q' */) {
+  limb origx[10], origxprime[10], zzz[19], xx[19], zz[19], xxprime[19],
+        zzprime[19], zzzprime[19], xxxprime[19];
+
+  memcpy(origx, x, 10 * sizeof(limb));
+  fsum(x, z);
+  fdifference(z, origx);  // does x - z
+
+  memcpy(origxprime, xprime, sizeof(limb) * 10);
+  fsum(xprime, zprime);
+  fdifference(zprime, origxprime);
+  fproduct(xxprime, xprime, z);
+  fproduct(zzprime, x, zprime);
+  freduce_degree(xxprime);
+  freduce_coefficients(xxprime);
+  freduce_degree(zzprime);
+  freduce_coefficients(zzprime);
+  memcpy(origxprime, xxprime, sizeof(limb) * 10);
+  fsum(xxprime, zzprime);
+  fdifference(zzprime, origxprime);
+  fsquare(xxxprime, xxprime);
+  fsquare(zzzprime, zzprime);
+  fproduct(zzprime, zzzprime, qmqp);
+  freduce_degree(zzprime);
+  freduce_coefficients(zzprime);
+  memcpy(x3, xxxprime, sizeof(limb) * 10);
+  memcpy(z3, zzprime, sizeof(limb) * 10);
+
+  fsquare(xx, x);
+  fsquare(zz, z);
+  fproduct(x2, xx, zz);
+  freduce_degree(x2);
+  freduce_coefficients(x2);
+  fdifference(zz, xx);  // does zz = xx - zz
+  memset(zzz + 10, 0, sizeof(limb) * 9);
+  fscalar_product(zzz, zz, 121665);
+  /* No need to call freduce_degree here:
+     fscalar_product doesn't increase the degree of its input. */
+  freduce_coefficients(zzz);
+  fsum(zzz, xx);
+  fproduct(z2, zz, zzz);
+  freduce_degree(z2);
+  freduce_coefficients(z2);
+}
+
+/* Conditionally swap two reduced-form limb arrays if 'iswap' is 1, but leave
+ * them unchanged if 'iswap' is 0.  Runs in data-invariant time to avoid
+ * side-channel attacks.
+ *
+ * NOTE that this function requires that 'iswap' be 1 or 0; other values give
+ * wrong results.  Also, the two limb arrays must be in reduced-coefficient,
+ * reduced-degree form: the values in a[10..19] or b[10..19] aren't swapped,
+ * and all all values in a[0..9],b[0..9] must have magnitude less than
+ * INT32_MAX.
+ */
+static void
+swap_conditional(limb a[19], limb b[19], limb iswap) {
+  unsigned i;
+  const s32 swap = (s32) -iswap;
+
+  for (i = 0; i < 10; ++i) {
+    const s32 x = swap & ( ((s32)a[i]) ^ ((s32)b[i]) );
+    a[i] = ((s32)a[i]) ^ x;
+    b[i] = ((s32)b[i]) ^ x;
+  }
+}
+
+/* Calculates nQ where Q is the x-coordinate of a point on the curve
+ *
+ *   resultx/resultz: the x coordinate of the resulting curve point (short form)
+ *   n: a little endian, 32-byte number
+ *   q: a point of the curve (short form)
+ */
+static void
+cmult(limb *resultx, limb *resultz, const u8 *n, const limb *q) {
+  limb a[19] = {0}, b[19] = {1}, c[19] = {1}, d[19] = {0};
+  limb *nqpqx = a, *nqpqz = b, *nqx = c, *nqz = d, *t;
+  limb e[19] = {0}, f[19] = {1}, g[19] = {0}, h[19] = {1};
+  limb *nqpqx2 = e, *nqpqz2 = f, *nqx2 = g, *nqz2 = h;
+
+  unsigned i, j;
+
+  memcpy(nqpqx, q, sizeof(limb) * 10);
+
+  for (i = 0; i < 32; ++i) {
+    u8 byte = n[31 - i];
+    for (j = 0; j < 8; ++j) {
+      const limb bit = byte >> 7;
+
+      swap_conditional(nqx, nqpqx, bit);
+      swap_conditional(nqz, nqpqz, bit);
+      fmonty(nqx2, nqz2,
+             nqpqx2, nqpqz2,
+             nqx, nqz,
+             nqpqx, nqpqz,
+             q);
+      swap_conditional(nqx2, nqpqx2, bit);
+      swap_conditional(nqz2, nqpqz2, bit);
+
+      t = nqx;
+      nqx = nqx2;
+      nqx2 = t;
+      t = nqz;
+      nqz = nqz2;
+      nqz2 = t;
+      t = nqpqx;
+      nqpqx = nqpqx2;
+      nqpqx2 = t;
+      t = nqpqz;
+      nqpqz = nqpqz2;
+      nqpqz2 = t;
+
+      byte <<= 1;
+    }
+  }
+
+  memcpy(resultx, nqx, sizeof(limb) * 10);
+  memcpy(resultz, nqz, sizeof(limb) * 10);
+}
+
+// -----------------------------------------------------------------------------
+// Shamelessly copied from djb's code
+// -----------------------------------------------------------------------------
+static void
+crecip(limb *out, const limb *z) {
+  limb z2[10];
+  limb z9[10];
+  limb z11[10];
+  limb z2_5_0[10];
+  limb z2_10_0[10];
+  limb z2_20_0[10];
+  limb z2_50_0[10];
+  limb z2_100_0[10];
+  limb t0[10];
+  limb t1[10];
+  int i;
+
+  /* 2 */ fsquare(z2,z);
+  /* 4 */ fsquare(t1,z2);
+  /* 8 */ fsquare(t0,t1);
+  /* 9 */ fmul(z9,t0,z);
+  /* 11 */ fmul(z11,z9,z2);
+  /* 22 */ fsquare(t0,z11);
+  /* 2^5 - 2^0 = 31 */ fmul(z2_5_0,t0,z9);
+
+  /* 2^6 - 2^1 */ fsquare(t0,z2_5_0);
+  /* 2^7 - 2^2 */ fsquare(t1,t0);
+  /* 2^8 - 2^3 */ fsquare(t0,t1);
+  /* 2^9 - 2^4 */ fsquare(t1,t0);
+  /* 2^10 - 2^5 */ fsquare(t0,t1);
+  /* 2^10 - 2^0 */ fmul(z2_10_0,t0,z2_5_0);
+
+  /* 2^11 - 2^1 */ fsquare(t0,z2_10_0);
+  /* 2^12 - 2^2 */ fsquare(t1,t0);
+  /* 2^20 - 2^10 */ for (i = 2;i < 10;i += 2) { fsquare(t0,t1); fsquare(t1,t0); }
+  /* 2^20 - 2^0 */ fmul(z2_20_0,t1,z2_10_0);
+
+  /* 2^21 - 2^1 */ fsquare(t0,z2_20_0);
+  /* 2^22 - 2^2 */ fsquare(t1,t0);
+  /* 2^40 - 2^20 */ for (i = 2;i < 20;i += 2) { fsquare(t0,t1); fsquare(t1,t0); }
+  /* 2^40 - 2^0 */ fmul(t0,t1,z2_20_0);
+
+  /* 2^41 - 2^1 */ fsquare(t1,t0);
+  /* 2^42 - 2^2 */ fsquare(t0,t1);
+  /* 2^50 - 2^10 */ for (i = 2;i < 10;i += 2) { fsquare(t1,t0); fsquare(t0,t1); }
+  /* 2^50 - 2^0 */ fmul(z2_50_0,t0,z2_10_0);
+
+  /* 2^51 - 2^1 */ fsquare(t0,z2_50_0);
+  /* 2^52 - 2^2 */ fsquare(t1,t0);
+  /* 2^100 - 2^50 */ for (i = 2;i < 50;i += 2) { fsquare(t0,t1); fsquare(t1,t0); }
+  /* 2^100 - 2^0 */ fmul(z2_100_0,t1,z2_50_0);
+
+  /* 2^101 - 2^1 */ fsquare(t1,z2_100_0);
+  /* 2^102 - 2^2 */ fsquare(t0,t1);
+  /* 2^200 - 2^100 */ for (i = 2;i < 100;i += 2) { fsquare(t1,t0); fsquare(t0,t1); }
+  /* 2^200 - 2^0 */ fmul(t1,t0,z2_100_0);
+
+  /* 2^201 - 2^1 */ fsquare(t0,t1);
+  /* 2^202 - 2^2 */ fsquare(t1,t0);
+  /* 2^250 - 2^50 */ for (i = 2;i < 50;i += 2) { fsquare(t0,t1); fsquare(t1,t0); }
+  /* 2^250 - 2^0 */ fmul(t0,t1,z2_50_0);
+
+  /* 2^251 - 2^1 */ fsquare(t1,t0);
+  /* 2^252 - 2^2 */ fsquare(t0,t1);
+  /* 2^253 - 2^3 */ fsquare(t1,t0);
+  /* 2^254 - 2^4 */ fsquare(t0,t1);
+  /* 2^255 - 2^5 */ fsquare(t1,t0);
+  /* 2^255 - 21 */ fmul(out,t1,z11);
+}
+
+int curve25519_donna(u8 *, const u8 *, const u8 *);
+
+int
+curve25519_donna(u8 *mypublic, const u8 *secret, const u8 *basepoint) {
+  limb bp[10], x[10], z[11], zmone[10];
+  uint8_t e[32];
+  int i;
+
+  for (i = 0; i < 32; ++i) e[i] = secret[i];
+
+  fexpand(bp, basepoint);
+  cmult(x, z, e, bp);
+  crecip(zmone, z);
+  fmul(z, x, zmone);
+  freduce_coefficients(z);
+  fcontract(mypublic, z);
+  return 0;
+}

library/jni/curve25519-donna.h

@@ -0,0 +1,6 @@
+#ifndef CURVE25519_DONNA_H
+#define CURVE25519_DONNA_H
+
+extern int curve25519_donna(uint8_t *, const uint8_t *, const uint8_t *);
+
+#endif

library/proguard-project.txt

@@ -0,0 +1,20 @@
+# To enable ProGuard in your project, edit project.properties
+# to define the proguard.config property as described in that file.
+#
+# Add project specific ProGuard rules here.
+# By default, the flags in this file are appended to flags specified
+# in ${sdk.dir}/tools/proguard/proguard-android.txt
+# You can edit the include path and order by changing the ProGuard
+# include property in project.properties.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# Add any project specific keep options here:
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}

library/protobuf/IncomingPushMessageSignal.proto

@@ -0,0 +1,52 @@
+package textsecure;
+
+option java_package = "org.whispersystems.textsecure.push";
+option java_outer_classname = "PushMessageProtos";
+
+message IncomingPushMessageSignal {
+  enum Type {
+    UNKNOWN       = 0;
+    CIPHERTEXT    = 1;
+    KEY_EXCHANGE  = 2;
+    PREKEY_BUNDLE = 3;
+    PLAINTEXT     = 4;
+  }
+  optional Type   type         = 1;
+  optional string source       = 2;
+  optional uint32 sourceDevice = 7;
+  optional string relay        = 3;
+  optional uint64 timestamp    = 5;
+  optional bytes  message      = 6; // Contains an encrypted PushMessageContent
+//  repeated string destinations = 4; // No longer supported
+}
+
+message PushMessageContent {
+  message AttachmentPointer {
+    optional fixed64 id          = 1;
+    optional string  contentType = 2;
+    optional bytes   key         = 3;
+  }
+
+  message GroupContext {
+    enum Type {
+      UNKNOWN = 0;
+      UPDATE  = 1;
+      DELIVER = 2;
+      QUIT    = 3;
+    }
+    optional bytes             id      = 1;
+    optional Type              type    = 2;
+    optional string            name    = 3;
+    repeated string            members = 4;
+    optional AttachmentPointer avatar  = 5;
+  }
+
+  enum Flags {
+    END_SESSION = 1;
+  }
+
+  optional string            body        = 1;
+  repeated AttachmentPointer attachments = 2;
+  optional GroupContext      group       = 3;
+  optional uint32            flags       = 4;
+}

library/protobuf/LocalStorageProtocol.proto

@@ -0,0 +1,70 @@
+package textsecure;
+
+option java_package = "org.whispersystems.textsecure.storage";
+option java_outer_classname = "StorageProtos";
+
+message SessionStructure {
+  message Chain {
+    optional bytes senderEphemeral = 1;
+    optional bytes senderEphemeralPrivate = 2;
+
+    message ChainKey {
+      optional uint32 index = 1;
+      optional bytes  key   = 2;
+    }
+
+    optional ChainKey chainKey = 3;
+
+    message MessageKey {
+      optional uint32 index     = 1;
+      optional bytes  cipherKey = 2;
+      optional bytes  macKey    = 3;
+    }
+
+    repeated MessageKey messageKeys = 4;
+  }
+
+  message PendingKeyExchange {
+    optional uint32 sequence                 = 1;
+    optional bytes  localBaseKey             = 2;
+    optional bytes  localBaseKeyPrivate      = 3;
+    optional bytes  localEphemeralKey        = 4;
+    optional bytes  localEphemeralKeyPrivate = 5;
+    optional bytes  localIdentityKey         = 7;
+    optional bytes  localIdentityKeyPrivate  = 8;
+  }
+
+  message PendingPreKey {
+    optional uint32 preKeyId = 1;
+    optional bytes  baseKey  = 2;
+  }
+
+  optional uint32 sessionVersion      = 1;
+  optional bytes localIdentityPublic  = 2;
+  optional bytes remoteIdentityPublic = 3;
+
+  optional bytes rootKey              = 4;
+  optional uint32 previousCounter     = 5;
+
+  optional Chain senderChain          = 6;
+  repeated Chain receiverChains       = 7;
+
+  optional PendingKeyExchange pendingKeyExchange = 8;
+  optional PendingPreKey      pendingPreKey      = 9;
+
+  optional uint32 remoteRegistrationId = 10;
+  optional uint32 localRegistrationId  = 11;
+
+  optional bool needsRefresh = 12;
+}
+
+message RecordStructure {
+  optional SessionStructure currentSession   = 1;
+  repeated SessionStructure previousSessions = 2;
+}
+
+message PreKeyRecordStructure {
+  optional uint32 id        = 1;
+  optional bytes  publicKey = 2;
+  optional bytes  privateKey = 3;
+}

library/protobuf/Makefile

@@ -0,0 +1,3 @@
+
+all:
+	protoc --java_out=../src/ IncomingPushMessageSignal.proto WhisperTextProtocol.proto LocalStorageProtocol.proto

library/protobuf/WhisperTextProtocol.proto

@@ -0,0 +1,26 @@
+package textsecure;
+
+option java_package = "org.whispersystems.textsecure.crypto.protocol";
+option java_outer_classname = "WhisperProtos";
+
+message WhisperMessage {
+  optional bytes  ephemeralKey    = 1;
+  optional uint32 counter         = 2;
+  optional uint32 previousCounter = 3;
+  optional bytes  ciphertext      = 4;
+}
+
+message PreKeyWhisperMessage {
+  optional uint32 registrationId = 5;
+  optional uint32 preKeyId    = 1;
+  optional bytes  baseKey     = 2;
+  optional bytes  identityKey = 3;
+  optional bytes  message     = 4; // WhisperMessage
+}
+
+message KeyExchangeMessage {
+  optional uint32 id           = 1;
+  optional bytes  baseKey      = 2;
+  optional bytes  ephemeralKey = 3;
+  optional bytes  identityKey  = 4;
+}

library/res/values/strings.xml

@@ -0,0 +1,3 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+</resources>

library/src/org/whispersystems/textsecure/crypto/AttachmentCipher.java

@@ -0,0 +1,159 @@
+/**
+ * Copyright (C) 2013 Open Whisper Systems
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.whispersystems.textsecure.crypto;
+
+import android.util.Log;
+
+import org.whispersystems.textsecure.util.Hex;
+import org.whispersystems.textsecure.util.Util;
+
+import javax.crypto.BadPaddingException;
+import javax.crypto.Cipher;
+import javax.crypto.IllegalBlockSizeException;
+import javax.crypto.Mac;
+import javax.crypto.NoSuchPaddingException;
+import javax.crypto.spec.IvParameterSpec;
+import javax.crypto.spec.SecretKeySpec;
+import java.security.InvalidAlgorithmParameterException;
+import java.security.InvalidKeyException;
+import java.security.NoSuchAlgorithmException;
+import java.text.ParseException;
+import java.util.Arrays;
+
+/**
+ * Encrypts push attachments.
+ *
+ * @author Moxie Marlinspike
+ */
+public class AttachmentCipher {
+
+  static final int CIPHER_KEY_SIZE = 32;
+  static final int MAC_KEY_SIZE    = 32;
+
+  private final SecretKeySpec cipherKey;
+  private final SecretKeySpec macKey;
+  private final Cipher        cipher;
+  private final Mac           mac;
+
+  public AttachmentCipher() {
+    this.cipherKey = initializeRandomCipherKey();
+    this.macKey    = initializeRandomMacKey();
+    this.cipher    = initializeCipher();
+    this.mac       = initializeMac();
+  }
+
+  public AttachmentCipher(byte[] combinedKeyMaterial) {
+    byte[][] parts = Util.split(combinedKeyMaterial, CIPHER_KEY_SIZE, MAC_KEY_SIZE);
+    this.cipherKey = new SecretKeySpec(parts[0], "AES");
+    this.macKey    = new SecretKeySpec(parts[1], "HmacSHA256");
+    this.cipher    = initializeCipher();
+    this.mac       = initializeMac();
+  }
+
+  public byte[] getCombinedKeyMaterial() {
+    return Util.combine(this.cipherKey.getEncoded(), this.macKey.getEncoded());
+  }
+
+  public byte[] encrypt(byte[] plaintext) {
+    try {
+      this.cipher.init(Cipher.ENCRYPT_MODE, this.cipherKey);
+      this.mac.init(this.macKey);
+
+      byte[] ciphertext = this.cipher.doFinal(plaintext);
+      byte[] iv         = this.cipher.getIV();
+      byte[] mac        = this.mac.doFinal(Util.combine(iv, ciphertext));
+
+      return Util.combine(iv, ciphertext, mac);
+    } catch (IllegalBlockSizeException e) {
+      throw new AssertionError(e);
+    } catch (BadPaddingException e) {
+      throw new AssertionError(e);
+    } catch (InvalidKeyException e) {
+      throw new AssertionError(e);
+    }
+  }
+
+  public byte[] decrypt(byte[] ciphertext)
+      throws InvalidMacException, InvalidMessageException
+  {
+    try {
+      if (ciphertext.length <= cipher.getBlockSize() + mac.getMacLength()) {
+        throw new InvalidMessageException("Message too short!");
+      }
+
+      byte[][] ciphertextParts = Util.split(ciphertext,
+                                            this.cipher.getBlockSize(),
+                                            ciphertext.length - this.cipher.getBlockSize() - this.mac.getMacLength(),
+                                            this.mac.getMacLength());
+
+      this.mac.update(ciphertext, 0, ciphertext.length - mac.getMacLength());
+      byte[] ourMac = this.mac.doFinal();
+
+      if (!Arrays.equals(ourMac, ciphertextParts[2])) {
+        throw new InvalidMacException("Mac doesn't match!");
+      }
+
+      this.cipher.init(Cipher.DECRYPT_MODE, this.cipherKey,
+                       new IvParameterSpec(ciphertextParts[0]));
+
+      return cipher.doFinal(ciphertextParts[1]);
+    } catch (InvalidKeyException e) {
+      throw new AssertionError(e);
+    } catch (InvalidAlgorithmParameterException e) {
+      throw new AssertionError(e);
+    } catch (IllegalBlockSizeException e) {
+      throw new AssertionError(e);
+    } catch (BadPaddingException e) {
+      throw new InvalidMessageException(e);
+    } catch (ParseException e) {
+      throw new InvalidMessageException(e);
+    }
+  }
+
+  private Mac initializeMac() {
+    try {
+      Mac mac = Mac.getInstance("HmacSHA256");
+      return mac;
+    } catch (NoSuchAlgorithmException e) {
+      throw new AssertionError(e);
+    }
+  }
+
+  private Cipher initializeCipher() {
+    try {
+      Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
+      return cipher;
+    } catch (NoSuchAlgorithmException e) {
+      throw new AssertionError(e);
+    } catch (NoSuchPaddingException e) {
+      throw new AssertionError(e);
+    }
+  }
+
+  private SecretKeySpec initializeRandomCipherKey() {
+    byte[] key = new byte[CIPHER_KEY_SIZE];
+    Util.getSecureRandom().nextBytes(key);
+    return new SecretKeySpec(key, "AES");
+  }
+
+  private SecretKeySpec initializeRandomMacKey() {
+    byte[] key = new byte[MAC_KEY_SIZE];
+    Util.getSecureRandom().nextBytes(key);
+    return new SecretKeySpec(key, "HmacSHA256");
+  }
+
+}