Release v1.4-beta2

Move the creation of exports/backups to a background thread

.github/FUNDING.yml

@@ -0,0 +1 @@
+custom: ['https://www.buymeacoffee.com/beemdevelopment']

.github/ISSUE_TEMPLATE/bug.md

@@ -0,0 +1,34 @@
+---
+name: "Bug report"
+about: "Create a report to help us fix a bug"
+labels: bug
+---
+
+<!-- Please read the [bug reports section of the contribution
+guidelines](/CONTRIBUTING.md#bug-reports) before submitting an issue. -->
+
+###### Info
+
+* __Version__: 
+* __Source__: (Google Play/GitHub/F-Droid/?)
+* __Vault encrypted:__ Yes (with biometric unlock)/Yes/No
+* __Device:__
+* __Android version and ROM:__
+
+###### Steps to reproduce
+
+A detailed list of reproduction steps.
+
+###### What do you expect to happen?
+
+...
+
+###### What happens instead?
+
+...
+
+###### Log
+
+```
+If applicable, paste the debug log here.
+```

.github/ISSUE_TEMPLATE/feature.md

@@ -0,0 +1,6 @@
+---
+name: "Feature request"
+about: "Suggest a new feature for this project"
+labels: proposal
+---
+

.gitignore

@@ -16,6 +16,7 @@ out/
 # Gradle files
 .gradle/
 build/
+release/
 
 # Local configuration file (sdk path, etc)
 local.properties
@@ -34,8 +35,8 @@ captures/
 
 # Intellij
 *.iml
-.idea/workspace.xml
-.idea/libraries
+.idea/
 
 # Keystore files
 *.jks
+crowdin.properties

.idea/.name

@@ -1 +0,0 @@
-Aegis

.idea/compiler.xml

@@ -1,22 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="CompilerConfiguration">
-    <resourceExtensions />
-    <wildcardResourcePatterns>
-      <entry name="!?*.java" />
-      <entry name="!?*.form" />
-      <entry name="!?*.class" />
-      <entry name="!?*.groovy" />
-      <entry name="!?*.scala" />
-      <entry name="!?*.flex" />
-      <entry name="!?*.kt" />
-      <entry name="!?*.clj" />
-      <entry name="!?*.aj" />
-    </wildcardResourcePatterns>
-    <annotationProcessing>
-      <profile default="true" name="Default" enabled="false">
-        <processorPath useClasspath="true" />
-      </profile>
-    </annotationProcessing>
-  </component>
-</project>

.idea/copyright/profiles_settings.xml

@@ -1,3 +0,0 @@
-<component name="CopyrightManager">
-  <settings default="" />
-</component>

.idea/encodings.xml

@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="Encoding">
-    <file url="PROJECT" charset="UTF-8" />
-  </component>
-</project>

.idea/gradle.xml

@@ -1,22 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="GradleSettings">
-    <option name="linkedExternalProjectsSettings">
-      <GradleProjectSettings>
-        <compositeConfiguration>
-          <compositeBuild compositeDefinitionSource="SCRIPT" />
-        </compositeConfiguration>
-        <option name="distributionType" value="DEFAULT_WRAPPED" />
-        <option name="externalProjectPath" value="$PROJECT_DIR$" />
-        <option name="gradleHome" value="F:\Android\Android Studio\gradle\gradle-2.14.1" />
-        <option name="modules">
-          <set>
-            <option value="$PROJECT_DIR$" />
-            <option value="$PROJECT_DIR$/app" />
-          </set>
-        </option>
-        <option name="resolveModulePerSourceSet" value="false" />
-      </GradleProjectSettings>
-    </option>
-  </component>
-</project>

.idea/misc.xml

@@ -1,33 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="NullableNotNullManager">
-    <option name="myDefaultNullable" value="android.support.annotation.Nullable" />
-    <option name="myDefaultNotNull" value="android.support.annotation.NonNull" />
-    <option name="myNullables">
-      <value>
-        <list size="4">
-          <item index="0" class="java.lang.String" itemvalue="org.jetbrains.annotations.Nullable" />
-          <item index="1" class="java.lang.String" itemvalue="javax.annotation.Nullable" />
-          <item index="2" class="java.lang.String" itemvalue="edu.umd.cs.findbugs.annotations.Nullable" />
-          <item index="3" class="java.lang.String" itemvalue="android.support.annotation.Nullable" />
-        </list>
-      </value>
-    </option>
-    <option name="myNotNulls">
-      <value>
-        <list size="4">
-          <item index="0" class="java.lang.String" itemvalue="org.jetbrains.annotations.NotNull" />
-          <item index="1" class="java.lang.String" itemvalue="javax.annotation.Nonnull" />
-          <item index="2" class="java.lang.String" itemvalue="edu.umd.cs.findbugs.annotations.NonNull" />
-          <item index="3" class="java.lang.String" itemvalue="android.support.annotation.NonNull" />
-        </list>
-      </value>
-    </option>
-  </component>
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" default="true" project-jdk-name="JDK" project-jdk-type="JavaSDK">
-    <output url="file://$PROJECT_DIR$/build/classes" />
-  </component>
-  <component name="ProjectType">
-    <option name="id" value="Android" />
-  </component>
-</project>

.idea/modules.xml

@@ -1,9 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="ProjectModuleManager">
-    <modules>
-      <module fileurl="file://$PROJECT_DIR$/Aegis.iml" filepath="$PROJECT_DIR$/Aegis.iml" />
-      <module fileurl="file://$PROJECT_DIR$/app/app.iml" filepath="$PROJECT_DIR$/app/app.iml" />
-    </modules>
-  </component>
-</project>

.idea/runConfigurations.xml

@@ -1,12 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="RunConfigurationProducerService">
-    <option name="ignoredProducers">
-      <set>
-        <option value="org.jetbrains.plugins.gradle.execution.test.runner.AllInPackageGradleConfigurationProducer" />
-        <option value="org.jetbrains.plugins.gradle.execution.test.runner.TestClassGradleConfigurationProducer" />
-        <option value="org.jetbrains.plugins.gradle.execution.test.runner.TestMethodGradleConfigurationProducer" />
-      </set>
-    </option>
-  </component>
-</project>

.idea/vcs.xml

@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="VcsDirectoryMappings">
-    <mapping directory="$PROJECT_DIR$" vcs="Git" />
-  </component>
-</project>

.travis.yml

@@ -0,0 +1,24 @@
+language: shell
+os: linux
+dist: bionic
+env:
+  global:
+    - ANDROID_HOME=${HOME}/android
+    - ANDROID_SDK_ROOT=${ANDROID_HOME}
+    - TOOLS=${ANDROID_HOME}/cmdline-tools
+    - PATH=${ANDROID_HOME}/emulator:${TOOLS}/tools/bin:${ANDROID_HOME}/platform-tools:${PATH}
+before_install:
+  - mkdir -p ${ANDROID_HOME}/licenses
+  - echo "8933bad161af4178b1185d1a37fbf41ea5269c55" > ${ANDROID_HOME}/licenses/android-sdk-license
+  - echo "d56f5187479451eabf01fb78af6dfcb131a6481e" >> ${ANDROID_HOME}/licenses/android-sdk-license
+  - echo "24333f8a63b6825ea9c5514f83c2829b004d1fee" >> ${ANDROID_HOME}/licenses/android-sdk-license
+install:
+  - mkdir -p ${TOOLS}
+  - travis_retry wget https://dl.google.com/android/repository/commandlinetools-linux-6514223_latest.zip -O ${TOOLS}/tools.zip
+  - unzip ${TOOLS}/tools.zip -d ${TOOLS}
+  - yes | travis_retry sdkmanager "platform-tools" > /dev/null
+  - yes | travis_retry sdkmanager "tools" > /dev/null
+  - yes | travis_retry sdkmanager "build-tools;30.0.1" > /dev/null
+  - yes | travis_retry sdkmanager "platforms;android-30" > /dev/null
+script:
+  - ./gradlew assemble check

CONTRIBUTING.md

@@ -0,0 +1,121 @@
+# Contributing
+
+Looking to contribute to Aegis? That's great! There are a couple of ways to help
+out. This document contains some general guidelines for each type of
+contribution.
+
+## Translations
+
+We use [Crowdin](https://crowdin.com/project/aegis-authenticator) to crowdsource
+translations of Aegis for lots of different languages. __Pull requests that
+add/update a translation are not longer accepted.__ Crowdin is our single source
+of truth for translations, to keep things easy to maintain.
+
+The top 30 languages are available for translation. It's possible that yours is
+not in that list. If that's the case, feel free to send us an email and we'll
+add it.
+
+## Pull requests
+
+If you're planning on adding a new feature or making other large changes, please
+discuss it with us first through [a
+proposal](https://github.com/beemdevelopment/Aegis/issues/new?labels=proposal&template=feature.md)
+on GitHub. Discussing your idea with us first ensures that everyone is on the
+same page before you start working on your change. We don't like rejecting pull
+requests.
+
+## Bug reports
+
+We use GitHub's issue tracker to track bugs. To make bug reports easier to
+follow up on for us, they must follow [the
+template](.github/ISSUE_TEMPLATE/bug.md). If a bug report does not follow the
+template and does not contain enough information, it will be closed. Duplicate
+bug reports receive the same treatment.
+
+Please consider trying to find the root cause yourself first and include your
+analysis of the issue in your report. Perhaps even send us a patch that fixes
+it! We're happy to help you if you get stuck along the way.
+
+### Capturing a log with ADB
+
+In some cases, we ask our users to obtain a debug log from their device. This is
+typically only necessary if Aegis:
+- Is unable to recover from an error and crashes.
+- Only shows a generic error to the user, but writes a more detailed one to the
+  log.
+
+Capturing a log with the Android Debug Bridge (ADB) allows us to see the stack
+trace and the exception that occurred.
+
+#### Preparation
+
+Before you can capture a log, you first need to go through a one-time setup
+process on your Android device and computer.
+
+##### Prerequisites
+
+- Your Android device.
+- A computer with Windows, Mac or Linux.
+- A USB cable to connect your Android device to your computer.
+
+##### Setup
+
+__On your Android device__:
+
+1. Navigate to ``Settings -> About``, scroll down and start tapping on the build
+   number until developer options are enabled.
+2. Navigate to ``Settings -> System -> Developer options`` and enable ``USB
+   debugging``.
+
+These navigation steps may differ slightly across Android versions and ROMs.
+
+__On your computer__:
+
+3. Download and extract the SDK platform tools for Android:
+   https://developer.android.com/studio/releases/platform-tools.
+4. Start your terminal emulator (If you're on Windows, start PowerShell) and
+   navigate to the folder where platform-tools was extracted.
+5. Execute ``adb devices``.
+
+__On your Android device__:
+
+6. A prompt will appear. Select "Always allow from this computer" and accept the
+   connection.
+
+#### Capturing a log
+
+__On your Android device__:
+
+1. Start Aegis.
+
+__On your PC__:
+
+2. Start your terminal emulator (If you're on Windows, start PowerShell) and
+   navigate to the folder where platform-tools was extracted.
+3. Start a log capture by executing the following commands.
+
+    ```
+    adb logcat -c
+    adb logcat -f debug.log
+    ```
+
+    The logcat command captures the full system log by default, which may expose
+    some sensitive information. While this information can sometimes help with
+    finding the root cause of the issue, it is not always necessary. To only
+    capture the log output of Aegis, replace the last logcat command with the
+    one below:
+
+    ```sh
+    adb logcat --pid=$(adb shell pidof -s com.beemdevelopment.aegis) -f debug.log
+    ```
+    _If you are using a debug APK, replace ``com.beemdevelopment.aegis`` with
+   ``com.beemdevelopment.aegis.debug``._
+
+__On your Android device__:
+
+4. Reproduce the issue.
+
+__On your PC__:
+
+5. Stop the log capture with Ctrl+C.
+6. Attach the ``debug.log`` file to your issue on GitHub.

README.md

@@ -1,64 +1,129 @@
-# Aegis
+<img align="left" width="80" height="80" src="metadata/en-US/images/icon.png"
+alt="App icon">
 
-Aegis is a free, secure and open source 2FA app for Android.
+# Aegis Authenticator [![CI](https://api.travis-ci.org/beemdevelopment/Aegis.svg?branch=master)](https://travis-ci.org/github/beemdevelopment/aegis) [![Crowdin](https://badges.crowdin.net/aegis-authenticator/localized.svg)](https://crowdin.com/project/aegis-authenticator) [![Donate](https://img.shields.io/badge/donate-buy%20us%20a%20beer-%23FF813F)](https://www.buymeacoffee.com/beemdevelopment) [![Matrix](https://img.shields.io/badge/chat-Matrix-blue)](https://matrix.to/#/#aegis:matrix.org)
 
-# Features
+__Aegis Authenticator__ is a free, secure and open source 2FA app for Android.
+It aims to provide a secure authenticator for your online services, while also
+including some features missing in existing authenticator apps, like proper
+encryption and backups. Aegis supports HOTP and TOTP, making it compatible with
+thousands of services.
+
+The security design of the app and the vault format is described in detail in
+[this document](docs/vault.md).
+
+## Features
 
 - Free and open source
 - Secure
-  - Encryption (AES-256)
+  - The vault is encrypted (AES-256-GCM), and can be unlocked with:
     - Password (scrypt)
-	- Fingerprint (Android Keystore)
+    - Biometrics (Android Keystore)
   - Screen capture prevention
-  - Tap to reveal ability
-- Multiple ways to add new entries
-  - Scan QR code
-  - Enter details manually
-  - Import
-    - andOTP
-    - FreeOTP
-- Supported algorithms:
-   - HOTP ([RFC 4226](https://tools.ietf.org/html/rfc4226))
-   - TOTP ([RFC 6238](https://tools.ietf.org/html/rfc6238))
+  - Tap to reveal
 - Compatible with Google Authenticator
+- Supports industry standard algorithms:
+  [HOTP](https://tools.ietf.org/html/rfc4226) and
+  [TOTP](https://tools.ietf.org/html/rfc6238)
+- Lots of ways to add new entries
+  - Scan a QR code or an image of one
+  - Enter details manually
+  - Import from other authenticator apps: Authenticator Plus, Authy, andOTP,
+    FreeOTP, FreeOTP+, Google Authenticator, Microsoft Authenticator, Plain
+    text, Steam, TOTP Authenticator and WinAuth (root access is required for
+    some of these)
 - Organization
-  - Custom or default icons
-  - Drag and drop
-  - Custom groups
+  - Alphabetic/custom sorting
+  - Custom or automatically generated icons
+  - Group entries together
   - Advanced entry editing
-- Material design
-  - Light and dark themes
+  - Search by name/issuer
+- Material design with multiple themes: Light, Dark, AMOLED
 - Export (plaintext or encrypted)
+- Automatic backups of the vault to a location of your choosing
 
 ## Screenshots
 
-[<img width=200 alt="Main Activity" src="metadata/en-US/images/phoneScreenshots/screenshot_main.png?raw=true">](metadata/en-US/images/phoneScreenshots/screenshot_main.png?raw=true)
-[<img width=200 alt="Settings Activity" src="metadata/en-US/images/phoneScreenshots/screenshot_settings.png?raw=true">](/metadata/en-US/images/phoneScreenshots/screenshot_settings.png?raw=true)
-[<img width=200 alt="Edit Activity" src="metadata/en-US/images/phoneScreenshots/screenshot_edit.png?raw=true">](/metadata/en-US/images/phoneScreenshots/screenshot_edit.png?raw=true).png
+[<img width=200 alt="Screenshot 1"
+src="metadata/en-US/images/phoneScreenshots/screenshot1.png?raw=true">](metadata/en-US/images/phoneScreenshots/screenshot1.png?raw=true)
+[<img width=200 alt="Screenshot 2"
+src="metadata/en-US/images/phoneScreenshots/screenshot2.png?raw=true">](/metadata/en-US/images/phoneScreenshots/screenshot2.png?raw=true)
+[<img width=200 alt="Screenshot 3"
+src="metadata/en-US/images/phoneScreenshots/screenshot3.png?raw=true">](/metadata/en-US/images/phoneScreenshots/screenshot3.png?raw=true)
 
-[<img width=200 alt="Main Activity" src="metadata/en-US/images/phoneScreenshots/screenshot_main_group.png?raw=true">](metadata/en-US/images/phoneScreenshots/screenshot_main_group.png?raw=true)
-[<img width=200 alt="Main Activity" src="metadata/en-US/images/phoneScreenshots/screenshot_main_dark.png?raw=true">](metadata/en-US/images/phoneScreenshots/screenshot_main_dark.png?raw=true)
+[<img width=200 alt="Screenshot 4"
+src="metadata/en-US/images/phoneScreenshots/screenshot4.png?raw=true">](metadata/en-US/images/phoneScreenshots/screenshot4.png?raw=true)
+[<img width=200 alt="Screenshot 5"
+src="metadata/en-US/images/phoneScreenshots/screenshot5.png?raw=true">](metadata/en-US/images/phoneScreenshots/screenshot5.png?raw=true)
+[<img width=200 alt="Screenshot 6"
+src="metadata/en-US/images/phoneScreenshots/screenshot6.png?raw=true">](metadata/en-US/images/phoneScreenshots/screenshot6.png?raw=true)
+
+[<img width=200 alt="Screenshot 7"
+src="metadata/en-US/images/phoneScreenshots/screenshot7.png?raw=true">](metadata/en-US/images/phoneScreenshots/screenshot7.png?raw=true)
 
 ## Downloads
 
-Aegis is available in the Google Play Store.
+Aegis is available on the Google Play Store and on F-Droid.
 
-[<img height=80 alt="Get it on Google Play" src="https://play.google.com/intl/en_us/badges/images/generic/en-play-badge.png" />](http://play.google.com/store/apps/details?id=com.beemdevelopment.aegis)
+[<img height=80 alt="Get it on Google Play"
+src="https://play.google.com/intl/en_us/badges/images/generic/en-play-badge.png"
+/>](http://play.google.com/store/apps/details?id=com.beemdevelopment.aegis)
+[<img height="80" alt="Get it on F-Droid"
+src="https://fdroid.gitlab.io/artwork/badge/get-it-on.png"
+/>](https://f-droid.org/app/com.beemdevelopment.aegis)
+      
+### Verification
 
-There are plans to make it available on F-Droid as well.
+APK releases on Google Play and GitHub are signed using the same key. They can
+be verified using
+[apksigner](https://developer.android.com/studio/command-line/apksigner.html#options-verify):
 
-## Libraries
+```
+apksigner verify --print-certs --verbose aegis.apk
+```
 
-- [TextDrawable](https://github.com/amulyakhare/TextDrawable) by Amulya Khare
-- [FloatingActionButton](https://github.com/Clans/FloatingActionButton) by Dmytro Tarianyk
-- [AppIntro](https://github.com/AppIntro/AppIntro) by Paolo Rotolo
-- [Krop](https://github.com/avito-tech/krop) by Avito Technology
-- [SpongyCastle](https://github.com/rtyley/spongycastle) by Roberto Tyley
-- [Swirl](https://github.com/mattprecious/swirl) by Matthew Precious
-- [CircleImageView](https://github.com/hdodenhof/CircleImageView) by Henning Dodenhof
-- [barcodescanner](https://github.com/dm77/barcodescanner) by Dushyanth
-- [libsu](https://github.com/topjohnwu/libsu) by John Wu
+The output should look like:
+
+```
+Verifies
+Verified using v1 scheme (JAR signing): true
+Verified using v2 scheme (APK Signature Scheme v2): true
+```
+
+The certificate fingerprints should correspond to the ones listed below:
+
+```
+Owner: CN=Beem Development
+Issuer: CN=Beem Development
+Serial number: 172380c
+Valid from: Sat Feb 09 14:05:49 CET 2019 until: Wed Feb 03 14:05:49 CET 2044
+Certificate fingerprints:
+   MD5:  AA:EE:86:DB:C7:B8:88:9F:1F:C9:D0:7A:EC:37:36:32
+   SHA1: 59:FB:63:B7:1F:CE:95:74:6C:EB:1E:1A:CB:2C:2E:45:E5:FF:13:50
+   SHA256: C6:DB:80:A8:E1:4E:52:30:C1:DE:84:15:EF:82:0D:13:DC:90:1D:8F:E3:3C:F3:AC:B5:7B:68:62:D8:58:A8:23
+```
+
+### Community
+
+- [aegis-icons](https://github.com/krisu5/aegis-icons)
+
+  While we're still [working on better icon
+  support](https://github.com/beemdevelopment/Aegis/issues/509) in Aegis, krisu5
+  has started a third-party repository for icons that you may want to check out.
+
+  [<img width=500 alt="Aegis-icons preview"
+  src="https://raw.githubusercontent.com/krisu5/aegis-icons/master/showcase.png">](https://github.com/krisu5/aegis-icons)
+
+## Contributing
+
+Looking to contribute to Aegis? That's great! There are a couple of ways to help
+out. Translations, bug reports and pull requests are all greatly appreciated.
+Please refer to our [contributing guidelines](CONTRIBUTING.md) to get started.
+
+Swing by our Matrix room to interact with other contributors:
+[#aegis:matrix.org](https://matrix.to/#/#aegis:matrix.org).
 
 ## License
 
-This project is licensed under the GNU General Public License v3.0. See the [LICENSE](LICENSE) file for details.
+This project is licensed under the GNU General Public License v3.0. See the
+[LICENSE](LICENSE) file for details.

app/build.gradle

@@ -1,52 +1,174 @@
 apply plugin: 'com.android.application'
+apply plugin: 'com.google.protobuf'
+
+def getCmdOutput = { cmd ->
+    def stdout = new ByteArrayOutputStream()
+    exec {
+        commandLine cmd
+        standardOutput = stdout
+    }
+    return stdout.toString().trim()
+}
+
+def getGitHash = { -> return getCmdOutput(["git", "rev-parse", "--short", "HEAD"]) }
+def getGitBranch = { -> return getCmdOutput(["git", "rev-parse", "--abbrev-ref", "HEAD"]) }
+
+def packageName = "com.beemdevelopment.aegis"
+def fileProviderAuthority = "${packageName}.fileprovider"
+def fileProviderAuthorityDebug = "${packageName}.debug.fileprovider"
 
 android {
-    compileSdkVersion 28
+    compileSdkVersion 30
 
     defaultConfig {
-        applicationId "com.beemdevelopment.aegis"
-        minSdkVersion 19
-        targetSdkVersion 28
-        versionCode 3
-        versionName "0.2"
+        applicationId "${packageName}"
+        minSdkVersion 21
+        targetSdkVersion 30
+        versionCode 42
+        versionName "1.4-beta2"
+        multiDexEnabled true
+        buildConfigField "String", "GIT_HASH", "\"${getGitHash()}\""
+        buildConfigField "String", "GIT_BRANCH", "\"${getGitBranch()}\""
+
+        testInstrumentationRunner "com.beemdevelopment.aegis.AegisTestRunner"
+        testInstrumentationRunnerArguments clearPackageData: 'true'
     }
+
+    lintOptions {
+        abortOnError true
+        disable "MissingTranslation"
+    }
+
+    testOptions {
+        execution 'ANDROIDX_TEST_ORCHESTRATOR'
+
+        unitTests.all {
+            useJUnitPlatform()
+
+            ignoreFailures false
+            testLogging {
+                events "passed", "skipped", "failed", "standardOut", "standardError"
+            }
+        }
+    }
+
     buildTypes {
         debug {
-            minifyEnabled false
             applicationIdSuffix ".debug"
-            manifestPlaceholders = [title:"AegisDev", iconName:"ic_launcher_debug"]
+            manifestPlaceholders = [
+                title: "AegisDev",
+                iconName: "ic_launcher_debug",
+                fileProviderAuthority: "${fileProviderAuthorityDebug}"
+            ]
+            buildConfigField("String", "FILE_PROVIDER_AUTHORITY", "\"${fileProviderAuthorityDebug}\"")
+            resValue "bool", "pref_secure_screen_default", "false"
+            postprocessing {
+                removeUnusedCode true
+                removeUnusedResources true
+                obfuscate false
+                optimizeCode false
+                proguardFiles getDefaultProguardFile('proguard-defaults.txt'), 'proguard-rules.pro'
+            }
         }
         release {
-            minifyEnabled false
-            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
-            manifestPlaceholders = [title:"Aegis", iconName:"ic_launcher"]
+            manifestPlaceholders = [
+                title: "Aegis",
+                iconName: "ic_launcher",
+                fileProviderAuthority: "${fileProviderAuthority}"
+            ]
+            buildConfigField("String", "FILE_PROVIDER_AUTHORITY", "\"${fileProviderAuthority}\"")
+            resValue "bool", "pref_secure_screen_default", "true"
+            postprocessing {
+                removeUnusedCode true
+                removeUnusedResources true
+                obfuscate false
+                optimizeCode true
+                proguardFiles getDefaultProguardFile('proguard-defaults.txt'), 'proguard-rules.pro'
+            }
         }
     }
+
     compileOptions {
         targetCompatibility 1.8
         sourceCompatibility 1.8
+        coreLibraryDesugaringEnabled true
+    }
+}
+
+protobuf {
+    protoc {
+        artifact = 'com.google.protobuf:protoc:3.8.0'
+    }
+    generateProtoTasks {
+        all().each { task ->
+            task.builtins {
+                java {
+                    option "lite"
+                }
+            }
+        }
     }
 }
 
 dependencies {
-    def libsuVersion = '2.3.2'
+    def cameraxVersion = '1.0.0-beta11'
+    def glideVersion = '4.11.0'
+    def guavaVersion = '30.0'
+    def junitVersion = '5.7.0'
+    def libsuVersion = '2.5.1'
+
+    annotationProcessor 'androidx.annotation:annotation:1.1.0'
+    annotationProcessor "com.github.bumptech.glide:compiler:${glideVersion}"
+
     implementation fileTree(dir: 'libs', include: ['*.jar'])
-    implementation 'com.amulyakhare:com.amulyakhare.textdrawable:1.0.1'
-    implementation 'androidx.appcompat:appcompat:1.0.2'
+    implementation 'androidx.appcompat:appcompat:1.2.0'
+    implementation "androidx.biometric:biometric:1.0.1"
+    implementation "androidx.camera:camera-camera2:$cameraxVersion"
+    implementation "androidx.camera:camera-lifecycle:$cameraxVersion"
+    implementation "androidx.camera:camera-view:1.0.0-alpha18"
     implementation 'androidx.cardview:cardview:1.0.0'
-    implementation 'androidx.preference:preference:1.0.0'
-    implementation 'com.takisoft.preferencex:preferencex:1.0.0'
-    implementation 'com.google.android.material:material:1.0.0'
-    implementation 'androidx.recyclerview:recyclerview:1.0.0'
-    implementation 'androidx.legacy:legacy-support-v4:1.0.0'
+    implementation 'androidx.constraintlayout:constraintlayout:2.0.2'
+    implementation 'androidx.documentfile:documentfile:1.0.1'
+    implementation "androidx.lifecycle:lifecycle-process:2.2.0"
+    implementation 'androidx.preference:preference:1.1.1'
+    implementation 'androidx.recyclerview:recyclerview:1.1.0'
+    implementation "androidx.viewpager2:viewpager2:1.0.0"
+    implementation 'com.amulyakhare:com.amulyakhare.textdrawable:1.0.1'
     implementation 'com.getbase:floatingactionbutton:1.10.1'
-    implementation 'com.github.apl-devs:appintro:v4.2.2'
-    implementation 'com.github.avito-tech:krop:3e65e12'
-    implementation 'com.madgag.spongycastle:core:1.58.0.0'
-    implementation 'com.mattprecious.swirl:swirl:1.0.0'
-    implementation 'de.hdodenhof:circleimageview:2.2.0'
-    implementation 'me.dm7.barcodescanner:zxing:1.9'
+    implementation 'com.github.avito-tech:krop:0.44'
+    implementation "com.github.bumptech.glide:annotations:${glideVersion}"
+    implementation "com.github.bumptech.glide:glide:${glideVersion}"
+    implementation("com.github.bumptech.glide:recyclerview-integration:${glideVersion}") {
+        transitive = false
+    }
     implementation "com.github.topjohnwu.libsu:core:${libsuVersion}"
     implementation "com.github.topjohnwu.libsu:io:${libsuVersion}"
-    testImplementation 'junit:junit:4.12'
+    implementation "com.google.guava:guava:${guavaVersion}-android"
+    implementation 'com.google.android.material:material:1.0.0'
+    implementation 'com.google.protobuf:protobuf-javalite:3.13.0'
+    implementation 'com.google.zxing:core:3.4.1'
+    implementation "com.mikepenz:iconics-core:3.2.5"
+    implementation 'com.mikepenz:material-design-iconic-typeface:2.2.0.5@aar'
+    implementation 'com.nulab-inc:zxcvbn:1.3.0'
+    implementation 'de.hdodenhof:circleimageview:3.1.0'
+    implementation 'de.psdev.licensesdialog:licensesdialog:2.1.0'
+    implementation 'net.lingala.zip4j:zip4j:2.6.4'
+    implementation 'info.guardianproject.trustedintents:trustedintents:0.2'
+    implementation 'org.bouncycastle:bcprov-jdk15on:1.65'
+
+    androidTestImplementation 'androidx.test:core:1.3.0'
+    androidTestImplementation 'androidx.test:runner:1.3.0'
+    androidTestImplementation 'androidx.test:rules:1.3.0'
+    androidTestImplementation 'androidx.test.ext:junit:1.1.2'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.3.0'
+    androidTestImplementation 'androidx.test.espresso:espresso-contrib:3.3.0'
+    androidTestImplementation 'androidx.test.espresso:espresso-intents:3.3.0'
+    androidTestImplementation 'junit:junit:4.13.1'
+    androidTestUtil 'androidx.test:orchestrator:1.3.0'
+
+    testImplementation "com.google.guava:guava:${guavaVersion}-jre"
+    testImplementation "org.junit.jupiter:junit-jupiter-api:${junitVersion}"
+    testRuntimeOnly "org.junit.jupiter:junit-jupiter-engine:${junitVersion}"
+
+    coreLibraryDesugaring 'com.android.tools:desugar_jdk_libs:1.0.10'
 }

app/lint.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<lint>
+    <issue id="InvalidPackage">
+        <ignore regexp="X509LDAPCertStoreSpi" />
+    </issue>
+</lint>

app/proguard-rules.pro

@@ -15,3 +15,10 @@
 #-keepclassmembers class fqcn.of.javascript.interface.for.webview {
 #   public *;
 #}
+
+-keepclasseswithmembers public class androidx.recyclerview.widget.RecyclerView { *; }
+
+-keep class com.beemdevelopment.aegis.importers.** { *; }
+
+-keep class * extends com.google.protobuf.GeneratedMessageLite { *; }
+-keep class !org.bouncycastle.jce.provider.X509LDAPCertStoreSpi { *; }

app/src/androidTest/java/com/beemdevelopment/aegis/AegisTest.java

@@ -0,0 +1,108 @@
+package com.beemdevelopment.aegis;
+
+import android.view.View;
+
+import androidx.test.espresso.UiController;
+import androidx.test.espresso.ViewAction;
+import androidx.test.platform.app.InstrumentationRegistry;
+
+import com.beemdevelopment.aegis.crypto.CryptoUtils;
+import com.beemdevelopment.aegis.crypto.SCryptParameters;
+import com.beemdevelopment.aegis.otp.OtpInfo;
+import com.beemdevelopment.aegis.vault.Vault;
+import com.beemdevelopment.aegis.vault.VaultEntry;
+import com.beemdevelopment.aegis.vault.VaultFileCredentials;
+import com.beemdevelopment.aegis.vault.VaultManager;
+import com.beemdevelopment.aegis.vault.VaultManagerException;
+import com.beemdevelopment.aegis.vault.slots.PasswordSlot;
+import com.beemdevelopment.aegis.vault.slots.SlotException;
+
+import org.hamcrest.Matcher;
+
+import java.lang.reflect.InvocationTargetException;
+import java.security.InvalidAlgorithmParameterException;
+import java.security.InvalidKeyException;
+import java.security.NoSuchAlgorithmException;
+
+import javax.crypto.NoSuchPaddingException;
+import javax.crypto.SecretKey;
+
+public abstract class AegisTest {
+    public static final String VAULT_PASSWORD = "test";
+
+    protected AegisApplication getApp() {
+        return (AegisApplication) InstrumentationRegistry.getInstrumentation().getTargetContext().getApplicationContext();
+    }
+
+    protected VaultManager getVault() {
+        return getApp().getVaultManager();
+    }
+
+    protected VaultManager initVault() {
+        PasswordSlot slot = new PasswordSlot();
+        byte[] salt = CryptoUtils.generateSalt();
+        SCryptParameters scryptParams = new SCryptParameters(
+                CryptoUtils.CRYPTO_SCRYPT_N,
+                CryptoUtils.CRYPTO_SCRYPT_r,
+                CryptoUtils.CRYPTO_SCRYPT_p,
+                salt
+        );
+
+        VaultFileCredentials creds = new VaultFileCredentials();
+        try {
+            SecretKey key = slot.deriveKey(VAULT_PASSWORD.toCharArray(), scryptParams);
+            slot.setKey(creds.getKey(), CryptoUtils.createEncryptCipher(key));
+        } catch (NoSuchAlgorithmException
+                | InvalidKeyException
+                | InvalidAlgorithmParameterException
+                | NoSuchPaddingException
+                | SlotException e) {
+            throw new RuntimeException(e);
+        }
+        creds.getSlots().add(slot);
+
+        VaultManager vault = getApp().initVaultManager(new Vault(), creds);
+        try {
+            vault.save(false);
+        } catch (VaultManagerException e) {
+            throw new RuntimeException(e);
+        }
+
+        getApp().getPreferences().setIntroDone(true);
+        return vault;
+    }
+
+    protected static <T extends OtpInfo> VaultEntry generateEntry(Class<T> type, String name, String issuer) {
+        byte[] secret = CryptoUtils.generateRandomBytes(20);
+
+        OtpInfo info;
+        try {
+            info = type.getConstructor(byte[].class).newInstance(secret);
+        } catch (IllegalAccessException | InstantiationException | InvocationTargetException | NoSuchMethodException e) {
+            throw new RuntimeException(e);
+        }
+
+        return new VaultEntry(info, name, issuer);
+    }
+
+    // source: https://stackoverflow.com/a/30338665
+    protected static ViewAction clickChildViewWithId(final int id) {
+        return new ViewAction() {
+            @Override
+            public Matcher<View> getConstraints() {
+                return null;
+            }
+
+            @Override
+            public String getDescription() {
+                return "Click on a child view with specified id.";
+            }
+
+            @Override
+            public void perform(UiController uiController, View view) {
+                View v = view.findViewById(id);
+                v.performClick();
+            }
+        };
+    }
+}

app/src/androidTest/java/com/beemdevelopment/aegis/AegisTestRunner.java

@@ -0,0 +1,29 @@
+package com.beemdevelopment.aegis;
+
+import android.app.Application;
+import android.content.Context;
+import android.preference.PreferenceManager;
+
+import androidx.test.core.app.ApplicationProvider;
+import androidx.test.runner.AndroidJUnitRunner;
+
+import com.beemdevelopment.aegis.util.IOUtils;
+
+public class AegisTestRunner extends AndroidJUnitRunner {
+    @Override
+    public void callApplicationOnCreate(Application app) {
+        Context context = app.getApplicationContext();
+
+        // clear internal storage so that there is no vault file
+        IOUtils.clearDirectory(context.getFilesDir(), false);
+
+        // clear preferences so that the intro is started from MainActivity
+        ApplicationProvider.getApplicationContext().getFilesDir();
+        PreferenceManager.getDefaultSharedPreferences(context)
+                .edit()
+                .clear()
+                .apply();
+
+        super.callApplicationOnCreate(app);
+    }
+}

app/src/androidTest/java/com/beemdevelopment/aegis/ApplicationTest.java

@@ -1,13 +0,0 @@
-package com.beemdevelopment.aegis;
-
-import android.app.Application;
-import android.test.ApplicationTestCase;
-
-/**
- * <a href="http://d.android.com/tools/testing/testing_android.html">Testing Fundamentals</a>
- */
-public class ApplicationTest extends ApplicationTestCase<Application> {
-    public ApplicationTest() {
-        super(Application.class);
-    }
-}

app/src/androidTest/java/com/beemdevelopment/aegis/IntentTest.java

@@ -0,0 +1,65 @@
+package com.beemdevelopment.aegis;
+
+import android.content.Intent;
+import android.net.Uri;
+
+import androidx.test.ext.junit.runners.AndroidJUnit4;
+import androidx.test.filters.LargeTest;
+import androidx.test.rule.ActivityTestRule;
+
+import com.beemdevelopment.aegis.otp.GoogleAuthInfo;
+import com.beemdevelopment.aegis.otp.TotpInfo;
+import com.beemdevelopment.aegis.ui.MainActivity;
+import com.beemdevelopment.aegis.vault.VaultEntry;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import static androidx.test.espresso.Espresso.onView;
+import static androidx.test.espresso.action.ViewActions.click;
+import static androidx.test.espresso.matcher.ViewMatchers.withId;
+import static junit.framework.TestCase.assertTrue;
+
+@RunWith(AndroidJUnit4.class)
+@LargeTest
+public class IntentTest extends AegisTest {
+    @Before
+    public void before() {
+        initVault();
+    }
+
+    @Test
+    public void doDeepLinkIntent() {
+        VaultEntry entry = generateEntry(TotpInfo.class, "Bob", "Google");
+        GoogleAuthInfo info = new GoogleAuthInfo(entry.getInfo(), entry.getName(), entry.getIssuer());
+        launch(info.getUri());
+
+        onView(withId(R.id.action_save)).perform(click());
+
+        VaultEntry createdEntry = (VaultEntry) getVault().getEntries().toArray()[0];
+        assertTrue(createdEntry.equivalates(entry));
+    }
+
+    @Test
+    public void doDeepLinkIntent_Empty() {
+        launch(null);
+    }
+
+    @Test
+    public void doDeepLinkIntent_Bad() {
+        launch(Uri.parse("otpauth://bad"));
+        onView(withId(android.R.id.button1)).perform(click());
+    }
+
+    @SuppressWarnings("deprecation")
+    private void launch(Uri uri) {
+        Intent intent = new Intent(getApp(), MainActivity.class);
+        intent.setAction(Intent.ACTION_VIEW);
+        intent.setData(uri);
+
+        // we need to use the deprecated ActivityTestRule class because of https://github.com/android/android-test/issues/143
+        ActivityTestRule<MainActivity> rule = new ActivityTestRule<>(MainActivity.class);
+        rule.launchActivity(intent);
+    }
+}

app/src/androidTest/java/com/beemdevelopment/aegis/IntroTest.java

@@ -0,0 +1,88 @@
+package com.beemdevelopment.aegis;
+
+import androidx.test.espresso.ViewInteraction;
+import androidx.test.ext.junit.rules.ActivityScenarioRule;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
+import androidx.test.filters.LargeTest;
+
+import com.beemdevelopment.aegis.ui.IntroActivity;
+import com.beemdevelopment.aegis.vault.VaultManager;
+import com.beemdevelopment.aegis.vault.slots.BiometricSlot;
+import com.beemdevelopment.aegis.vault.slots.PasswordSlot;
+import com.beemdevelopment.aegis.vault.slots.SlotList;
+
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import static androidx.test.espresso.Espresso.onView;
+import static androidx.test.espresso.action.ViewActions.click;
+import static androidx.test.espresso.action.ViewActions.closeSoftKeyboard;
+import static androidx.test.espresso.action.ViewActions.replaceText;
+import static androidx.test.espresso.action.ViewActions.typeText;
+import static androidx.test.espresso.assertion.ViewAssertions.matches;
+import static androidx.test.espresso.matcher.ViewMatchers.isDisplayed;
+import static androidx.test.espresso.matcher.ViewMatchers.withId;
+import static junit.framework.TestCase.assertFalse;
+import static junit.framework.TestCase.assertNull;
+import static junit.framework.TestCase.assertTrue;
+import static org.hamcrest.Matchers.not;
+
+@RunWith(AndroidJUnit4.class)
+@LargeTest
+public class IntroTest extends AegisTest {
+    @Rule
+    public final ActivityScenarioRule<IntroActivity> activityRule = new ActivityScenarioRule<>(IntroActivity.class);
+
+    @Test
+    public void doIntro_None() {
+        ViewInteraction next = onView(withId(R.id.btnNext));
+        ViewInteraction prev = onView(withId(R.id.btnPrevious));
+
+        prev.check(matches(not(isDisplayed())));
+        next.perform(click());
+        onView(withId(R.id.rb_none)).perform(click());
+        prev.perform(click());
+        prev.check(matches(not(isDisplayed())));
+        next.perform(click());
+        next.perform(click());
+        prev.check(matches(not(isDisplayed())));
+        next.perform(click());
+        next.perform(click());
+
+        VaultManager vault = getVault();
+        assertFalse(vault.isEncryptionEnabled());
+        assertNull(getVault().getCredentials());
+    }
+
+    @Test
+    public void doIntro_Password() {
+        ViewInteraction next = onView(withId(R.id.btnNext));
+        ViewInteraction prev = onView(withId(R.id.btnPrevious));
+
+        prev.check(matches(not(isDisplayed())));
+        next.perform(click());
+        onView(withId(R.id.rb_password)).perform(click());
+        prev.perform(click());
+        prev.check(matches(not(isDisplayed())));
+        next.perform(click());
+        next.perform(click());
+        onView(withId(R.id.text_password)).perform(typeText(VAULT_PASSWORD), closeSoftKeyboard());
+        onView(withId(R.id.text_password_confirm)).perform(typeText(VAULT_PASSWORD + "1"), closeSoftKeyboard());
+        next.perform(click());
+        onView(withId(R.id.text_password_confirm)).perform(replaceText(VAULT_PASSWORD), closeSoftKeyboard());
+        prev.perform(click());
+        prev.perform(click());
+        prev.check(matches(not(isDisplayed())));
+        next.perform(click());
+        next.perform(click());
+        next.perform(click());
+        next.perform(click());
+
+        VaultManager vault = getVault();
+        SlotList slots = getVault().getCredentials().getSlots();
+        assertTrue(vault.isEncryptionEnabled());
+        assertTrue(slots.has(PasswordSlot.class));
+        assertFalse(slots.has(BiometricSlot.class));
+    }
+}

app/src/androidTest/java/com/beemdevelopment/aegis/OverallTest.java

@@ -0,0 +1,190 @@
+package com.beemdevelopment.aegis;
+
+import androidx.annotation.IdRes;
+import androidx.test.core.app.ApplicationProvider;
+import androidx.test.espresso.AmbiguousViewMatcherException;
+import androidx.test.espresso.ViewInteraction;
+import androidx.test.espresso.contrib.RecyclerViewActions;
+import androidx.test.ext.junit.rules.ActivityScenarioRule;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
+import androidx.test.filters.LargeTest;
+
+import com.beemdevelopment.aegis.encoding.Base32;
+import com.beemdevelopment.aegis.otp.HotpInfo;
+import com.beemdevelopment.aegis.otp.SteamInfo;
+import com.beemdevelopment.aegis.otp.TotpInfo;
+import com.beemdevelopment.aegis.ui.MainActivity;
+import com.beemdevelopment.aegis.vault.VaultEntry;
+import com.beemdevelopment.aegis.vault.VaultManager;
+import com.beemdevelopment.aegis.vault.slots.PasswordSlot;
+
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+import static androidx.test.espresso.Espresso.onData;
+import static androidx.test.espresso.Espresso.onView;
+import static androidx.test.espresso.Espresso.openContextualActionModeOverflowMenu;
+import static androidx.test.espresso.action.ViewActions.clearText;
+import static androidx.test.espresso.action.ViewActions.click;
+import static androidx.test.espresso.action.ViewActions.closeSoftKeyboard;
+import static androidx.test.espresso.action.ViewActions.longClick;
+import static androidx.test.espresso.action.ViewActions.pressBack;
+import static androidx.test.espresso.action.ViewActions.typeText;
+import static androidx.test.espresso.matcher.ViewMatchers.hasDescendant;
+import static androidx.test.espresso.matcher.ViewMatchers.isRoot;
+import static androidx.test.espresso.matcher.ViewMatchers.withId;
+import static androidx.test.espresso.matcher.ViewMatchers.withText;
+import static junit.framework.TestCase.assertFalse;
+import static junit.framework.TestCase.assertNull;
+import static junit.framework.TestCase.assertTrue;
+import static org.hamcrest.Matchers.anything;
+
+@RunWith(AndroidJUnit4.class)
+@LargeTest
+public class OverallTest extends AegisTest {
+    private static final String _groupName = "Test";
+
+    @Rule
+    public final ActivityScenarioRule<MainActivity> activityRule = new ActivityScenarioRule<>(MainActivity.class);
+
+    @Test
+    public void doOverallTest() {
+        ViewInteraction next = onView(withId(R.id.btnNext));
+        next.perform(click());
+        onView(withId(R.id.rb_password)).perform(click());
+        next.perform(click());
+        onView(withId(R.id.text_password)).perform(typeText(VAULT_PASSWORD), closeSoftKeyboard());
+        onView(withId(R.id.text_password_confirm)).perform(typeText(VAULT_PASSWORD), closeSoftKeyboard());
+        next.perform(click());
+        onView(withId(R.id.btnNext)).perform(click());
+
+        VaultManager vault = getVault();
+        assertTrue(vault.isEncryptionEnabled());
+        assertTrue(vault.getCredentials().getSlots().has(PasswordSlot.class));
+
+        List<VaultEntry> entries = Arrays.asList(
+                generateEntry(TotpInfo.class, "Frank", "Google"),
+                generateEntry(HotpInfo.class, "John", "GitHub"),
+                generateEntry(TotpInfo.class, "Alice", "Office 365"),
+                generateEntry(SteamInfo.class, "Gaben", "Steam")
+        );
+        for (VaultEntry entry : entries) {
+            addEntry(entry);
+        }
+
+        List<VaultEntry> realEntries = new ArrayList<>(vault.getEntries());
+        for (int i = 0; i < realEntries.size(); i++) {
+            assertTrue(realEntries.get(i).equivalates(entries.get(i)));
+        }
+
+        for (int i = 0; i < 10; i++) {
+            onView(withId(R.id.rvKeyProfiles)).perform(RecyclerViewActions.actionOnItemAtPosition(1, clickChildViewWithId(R.id.buttonRefresh)));
+        }
+
+        onView(withId(R.id.rvKeyProfiles)).perform(RecyclerViewActions.actionOnItemAtPosition(0, longClick()));
+        onView(withId(R.id.action_copy)).perform(click());
+
+        onView(withId(R.id.rvKeyProfiles)).perform(RecyclerViewActions.actionOnItemAtPosition(1, longClick()));
+        onView(withId(R.id.action_edit)).perform(click());
+        onView(withId(R.id.text_name)).perform(clearText(), typeText("Bob"), closeSoftKeyboard());
+        onView(withId(R.id.spinner_group)).perform(click());
+        onData(anything()).atPosition(1).perform(click());
+        onView(withId(R.id.text_input)).perform(typeText(_groupName), closeSoftKeyboard());
+        onView(withId(android.R.id.button1)).perform(click());
+        onView(isRoot()).perform(pressBack());
+        onView(withId(android.R.id.button1)).perform(click());
+
+        changeSort(R.string.sort_alphabetically_name);
+        changeSort(R.string.sort_alphabetically_name_reverse);
+        changeSort(R.string.sort_alphabetically);
+        changeSort(R.string.sort_alphabetically_reverse);
+        changeSort(R.string.sort_custom);
+
+        changeFilter(_groupName);
+        changeFilter(R.string.filter_ungrouped);
+        changeFilter(R.string.all);
+
+        onView(withId(R.id.rvKeyProfiles)).perform(RecyclerViewActions.actionOnItemAtPosition(1, longClick()));
+        onView(withId(R.id.rvKeyProfiles)).perform(RecyclerViewActions.actionOnItemAtPosition(2, click()));
+        onView(withId(R.id.rvKeyProfiles)).perform(RecyclerViewActions.actionOnItemAtPosition(3, click()));
+        onView(withId(R.id.action_share_qr)).perform(click());
+        onView(withId(R.id.btnNext)).perform(click()).perform(click()).perform(click());
+
+        onView(withId(R.id.rvKeyProfiles)).perform(RecyclerViewActions.actionOnItemAtPosition(2, longClick()));
+        onView(withId(R.id.action_delete)).perform(click());
+        onView(withId(android.R.id.button1)).perform(click());
+
+        openContextualActionModeOverflowMenu();
+        onView(withText(R.string.lock)).perform(click());
+        onView(withId(R.id.text_password)).perform(typeText(VAULT_PASSWORD), closeSoftKeyboard());
+        onView(withId(R.id.button_decrypt)).perform(click());
+        vault = getVault();
+
+        openContextualActionModeOverflowMenu();
+        onView(withText(R.string.action_settings)).perform(click());
+        onView(withId(androidx.preference.R.id.recycler_view)).perform(RecyclerViewActions.actionOnItem(hasDescendant(withText(R.string.pref_encryption_title)), click()));
+        onView(withId(android.R.id.button1)).perform(click());
+
+        assertFalse(vault.isEncryptionEnabled());
+        assertNull(vault.getCredentials());
+
+        onView(withId(androidx.preference.R.id.recycler_view)).perform(RecyclerViewActions.actionOnItem(hasDescendant(withText(R.string.pref_encryption_title)), click()));
+        onView(withId(R.id.text_password)).perform(typeText(VAULT_PASSWORD), closeSoftKeyboard());
+        onView(withId(R.id.text_password_confirm)).perform(typeText(VAULT_PASSWORD), closeSoftKeyboard());
+        onView(withId(android.R.id.button1)).perform(click());
+
+        assertTrue(vault.isEncryptionEnabled());
+        assertTrue(vault.getCredentials().getSlots().has(PasswordSlot.class));
+    }
+
+    private void changeSort(@IdRes int resId) {
+        onView(withId(R.id.action_sort)).perform(click());
+        onView(withText(resId)).perform(click());
+    }
+
+    private void changeFilter(String text) {
+        openContextualActionModeOverflowMenu();
+        onView(withText(R.string.filter)).perform(click());
+        onView(withText(text)).perform(click());
+    }
+
+    private void changeFilter(@IdRes int resId) {
+        changeFilter(ApplicationProvider.getApplicationContext().getString(resId));
+    }
+
+    private void addEntry(VaultEntry entry) {
+        onView(withId(R.id.fab_expand_menu_button)).perform(click());
+        onView(withId(R.id.fab_enter)).perform(click());
+
+        onView(withId(R.id.text_name)).perform(typeText(entry.getName()), closeSoftKeyboard());
+        onView(withId(R.id.text_issuer)).perform(typeText(entry.getIssuer()), closeSoftKeyboard());
+
+        if (entry.getInfo().getClass() != TotpInfo.class) {
+            int i = entry.getInfo() instanceof HotpInfo ? 1 : 2;
+            try {
+                onView(withId(R.id.spinner_type)).perform(click());
+                onData(anything()).atPosition(i).perform(click());
+            } catch (AmbiguousViewMatcherException e) {
+                // for some reason, clicking twice is sometimes necessary, otherwise the test fails on the next line
+                onView(withId(R.id.spinner_type)).perform(click());
+                onData(anything()).atPosition(i).perform(click());
+            }
+            if (entry.getInfo() instanceof HotpInfo) {
+                onView(withId(R.id.text_counter)).perform(typeText("0"), closeSoftKeyboard());
+            }
+            if (entry.getInfo() instanceof SteamInfo) {
+                onView(withId(R.id.text_digits)).perform(clearText(), typeText("5"), closeSoftKeyboard());
+            }
+        }
+
+        String secret = Base32.encode(entry.getInfo().getSecret());
+        onView(withId(R.id.text_secret)).perform(typeText(secret), closeSoftKeyboard());
+
+        onView(withId(R.id.action_save)).perform(click());
+    }
+}

app/src/main/AndroidManifest.xml

@@ -3,61 +3,98 @@
     xmlns:tools="http://schemas.android.com/tools"
     package="com.beemdevelopment.aegis">
 
-    <uses-permission android:name="android.permission.CAMERA"/>
-    <uses-permission android:name="android.permission.USE_FINGERPRINT" />
-    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
-    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
+    <uses-permission android:name="android.permission.CAMERA" />
+    <uses-permission android:name="android.permission.USE_BIOMETRIC" />
+
+    <uses-feature
+        android:name="android.hardware.camera"
+        android:required="false" />
+    <uses-feature
+        android:name="android.hardware.camera.autofocus"
+        android:required="false" />
 
     <application
-        android:name="com.beemdevelopment.aegis.AegisApplication"
-        android:allowBackup="true"
+        android:name=".AegisApplication"
+        android:allowBackup="false"
         android:icon="@mipmap/${iconName}"
         android:label="Aegis"
         android:supportsRtl="true"
-        tools:replace="android:theme"
-        android:theme="@style/AppTheme.NoActionBar">
+        android:theme="@style/AppTheme.NoActionBar"
+        tools:ignore="GoogleAppIndexingWarning"
+        tools:replace="android:theme">
+        <activity android:name=".ui.TransferEntriesActivity"
+            android:label="@string/title_activity_transfer" />
         <activity
-            android:name="com.beemdevelopment.aegis.ui.MainActivity"
-            android:label="${title}"
-            android:alwaysRetainTaskState="true"
-            android:launchMode="singleTask">
+            android:name=".ui.AboutActivity"
+            android:label="@string/title_activity_about" />
+        <activity
+            android:name=".ui.SelectEntriesActivity"
+            android:label="@string/title_activity_select_entries" />
+        <activity
+            android:name=".ui.MainActivity"
+            android:label="${title}">
             <intent-filter>
-                <action android:name="android.intent.action.MAIN"/>
-                <category android:name="android.intent.category.LAUNCHER"/>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+            <intent-filter>
+                <action android:name="android.intent.action.VIEW" />
+
+                <category android:name="android.intent.category.DEFAULT" />
+                <category android:name="android.intent.category.BROWSABLE" />
+
+                <data android:scheme="otpauth" />
             </intent-filter>
         </activity>
         <activity
-            android:name="com.beemdevelopment.aegis.ui.ScannerActivity"
-            android:label="Scan a QR code"
-            android:theme="@style/AppTheme.Fullscreen"
-            android:screenOrientation="portrait"
-            android:configChanges="keyboardHidden|orientation|screenSize">
-        </activity>
+            android:name=".ui.ScannerActivity"
+            android:configChanges="keyboardHidden|orientation|screenSize"
+            android:label="@string/title_activity_scan_qr"
+            android:screenOrientation="portrait" />
         <activity
-            android:name="com.beemdevelopment.aegis.ui.EditEntryActivity"
-            android:label="Edit profile"
-            android:theme="@style/AppTheme.NoActionBar">
-        </activity>
+            android:name=".ui.EditEntryActivity"
+            android:label="@string/title_activity_edit_entry" />
         <activity
-            android:name="com.beemdevelopment.aegis.ui.IntroActivity"
-            android:theme="@style/Theme.Intro"
-            android:launchMode="singleTop">
-        </activity>
+            android:name=".ui.IntroActivity"
+            android:theme="@style/AppTheme.NoActionBar"
+            android:screenOrientation="portrait" />
         <activity
-            android:name="com.beemdevelopment.aegis.ui.AuthActivity"
-            android:launchMode="singleTop">
-        </activity>
-        <activity android:name="com.beemdevelopment.aegis.ui.PreferencesActivity">
-        </activity>
+            android:name=".ui.AuthActivity"
+            android:theme="@style/AppTheme.NoActionBar" />
         <activity
-            android:name="com.beemdevelopment.aegis.ui.SlotManagerActivity"
-            android:label="Manage key slots"
-            android:theme="@style/AppTheme.TransparentActionBar">
-        </activity>
+            android:name=".ui.PreferencesActivity"
+            android:label="@string/title_activity_preferences" />
         <activity
-            android:name="com.beemdevelopment.aegis.ui.GroupManagerActivity"
-            android:label="Manage groups"
-            android:theme="@style/AppTheme.TransparentActionBar">
+            android:name=".ui.SlotManagerActivity"
+            android:label="@string/title_activity_manage_slots" />
+        <activity
+            android:name=".ui.GroupManagerActivity"
+            android:label="@string/title_activity_manage_groups" />
+        <activity
+            android:name=".ui.PanicResponderActivity"
+            android:launchMode="singleInstance"
+            android:noHistory="true"
+            android:theme="@android:style/Theme.NoDisplay">
+            <intent-filter>
+                <action android:name="info.guardianproject.panic.action.TRIGGER" />
+                <category android:name="android.intent.category.DEFAULT" />
+            </intent-filter>
         </activity>
+        <activity android:name=".ui.ExitActivity" />
+
+        <service android:name=".services.NotificationService" />
+
+        <provider
+            android:name="androidx.core.content.FileProvider"
+            android:authorities="${fileProviderAuthority}"
+            android:exported="false"
+            android:grantUriPermissions="true">
+            <meta-data
+                android:name="android.support.FILE_PROVIDER_PATHS"
+                android:resource="@xml/file_paths">
+            </meta-data>
+        </provider>
     </application>
+
 </manifest>

app/src/main/assets/changelog.html

@@ -0,0 +1,205 @@
+<html>
+    <head>
+        <style type="text/css">
+            * {
+            word-wrap: break-word;
+            }
+            body {
+                background-color: %1$s;
+                color: %2$s;
+            }
+            ul {
+                list-style-position: inside;
+                padding: 0;
+                padding-left: 5px;
+                margin-bottom: 5px;
+            }
+            li {
+                padding-bottom: 8px;
+                list-style-position: outside;
+                margin-left: 1em;
+            }
+            h4 {
+                margin-top: 0px;
+                margin-bottom: 0px;
+            }
+            h3 {
+                margin-bottom: 7px;
+                padding-top: 7px;
+            }
+        </style>
+    </head>
+    <body>
+        <div></div>
+        <h3>Version 1.4</h3>
+        <h4>New</h4>
+        <ul>
+            <li>Optionally delete the vault if a panic trigger is received from Ripple</li>
+            <li>More customizable auto-lock</li>
+            <li>More flexible export options
+                <ul>
+                    <li>Share mechanism</li>
+                    <li>Offer to encrypt even if this feature is disabled in the app</li>
+                    <li>Export to a Google Authenticator URI file</li>
+                </ul>
+            </li>
+            <li>Perform exports/backups on a background thread (automatic backups now work with Nextcloud)</li>
+            <li>Color improvements to the dark theme (slightly darker)</li>
+            <li>Offer more locations to select an image/icon from</li>
+            <li>Display some helpful information when importing from a different app</li>
+            <li>Minimum tap to reveal timeout changed to 1 second</li>
+            <li>After an entry is added, scroll to it and highlight it</li>
+            <li>Updated translations, and new translations for: Basque, Chinese Traditional, Hindi, Indonesian, Japanese, Persian, Romanian, Slovak</li>
+        </ul>
+        <h4>Fixes</h4>
+        <ul>
+            <li>Scanning large images for QR codes would fail</li>
+            <li>The FAB would remain hidden under certain circumstances</li>
+            <li>The app would crash if an entry was added to the vault twice due to an IO error</li>
+            <li>The app would crash if the device was rotated while a progress dialog was shown</li>
+            <li>The PIN keyboard would show even if a new non-digit password was set</li>
+        </ul>
+        <h3>Version 1.3</h3>
+        <h4>New</h4>
+        <ul>
+            <li>Completely rewritten intro/onboarding</li>
+            <li>Option to show a PIN keyboard when unlocking Aegis</li>
+            <li>A password strength meter when setting up encryption (based on zxcvbn)</li>
+            <li>RTL support</li>
+            <li>Arabic and Portuguese translations</li>
+            <li>Updates to existing translations</li>
+        </ul>
+        <h4>Fixes</h4>
+        <ul>
+            <li>Better lifecycle handling of the biometric authentication prompt</li>
+            <li>The filename of exported vaults had a double .json extension</li>
+            <li>The navigation bar color was incorrect on devices pre API 27</li>
+            <li>QR code scanner performance and stability improvements</li>
+            <li>Various other small usability and stability improvements</li>
+        </ul>
+        <h3>Version 1.2.1</h3>
+        <h4>Fixes</h4>
+        <ul>
+            <li>Fix a rare issue where the intro could end up in a bad state</li>
+        </ul>
+        <h3>Version 1.2</h3>
+        <h4>New</h4>
+        <ul>
+            <li>Add navigation bar color to themes</li>
+            <li>Add support for importing from TOTP Authenticator</li>
+            <li>Add support for importing from Microsoft Authenticator</li>
+            <li>Add support for importing from Authenticator Plus</li>
+            <li>Add support for importing a plain text Google Authenticator URI file</li>
+            <li>Add support for importing from the new Google Authenticator export QR codes</li>
+            <li>Add support for otpauth://steam URI's</li>
+            <li>Add an option to copy tokens on tap (and disable it by default)</li>
+            <li>Improve method to notify users on copy</li>
+            <li>Add support for backups</li>
+            <li>Improve multiselect flow</li>
+            <li>Automatically adapt to system theme</li>
+            <li>Add setting to change from 3 digit group size to 2 digit group size</li>
+            <li>Use most frequent period to show progress</li>
+            <li>Append a timestamp to the filename of exported vaults</li>
+            <li>Add Hungarian translation</li>
+            <li>Add Turkish translation</li>
+            <li>Display a warning if automatic time sync is not enabled</li>
+            <li>Minor card entry layout overhaul</li>
+            <li>Ability to transfer tokens with qr codes</li>
+            <li>Lockscreen overhaul</li>
+        </ul>
+        <h4>Fixes</h4>
+        <ul>
+            <li>Improve overall exception handling and error feedback to the user</li>
+            <li>Improve icon editing flow</li>
+            <li>Protect writes of the vault file against corruption with AtomicFile</li>
+            <li>Make the parsing logic of the QR code URI more robust</li>
+            <li>Importing from Authy now asks for password if needed</li>
+            <li>Update Russian localization</li>
+            <li>Increase password reminder period to 30 days</li>
+            <li>Fix importing andOTP backups with more than 10000 PBKDF iterations</li>
+            <li>Respect the global animator duration scale setting</li>
+        </ul>
+        <p>Various other minor improvements</p>
+        <h3>Version 1.1.4</h3>
+        <h4>Fixes</h4>
+        <ul>
+            <li>The export filename was missing the ".json" extension in some cases</li>
+        </ul>
+        <h3>Version 1.1.3</h3>
+        <h4>New</h4>
+        <ul>
+            <li>Password reminder for users who use biometric unlock</li>
+        </ul>
+        <h4>Fixes</h4>
+        <ul>
+            <li>Tokens would not refresh in some rare cases</li>
+        </ul>
+        <h3>Version 1.1.2</h3>
+        <h4>New</h4>
+        <ul>
+            <li>Ability to select multiple entries</li>
+            <li>Ability to select a file location when exporting the vault (including cloud providers like Google Drive)</li>
+            <li>Explanation and warning for the security options</li>
+            <li>Removed external storage permissions</li>
+        </ul>
+        <h3>Version 1.1.1</h3>
+        <h4>Fixes</h4>
+        <ul>
+            <li>Exporting the vault did not work on Android 10</li>
+        </ul>
+        <h3>Version 1.1</h3>
+        <h4>New</h4>
+        <ul>
+            <li>Support for other types of biometric authentication (i.e. Pixel 4 face unlock)</li>
+            <li>Support for importing from WinAuth</li>
+            <li>Support for Chromebooks</li>
+            <li>Option to highlight entries when tapped</li>
+            <li>Filter for ungrouped tokens</li>
+            <li>Ability to search for token account names</li>
+            <li>Simplified Chinese translation (thanks RunningMelos!)</li>
+            <li>Updated translations (thanks to all Crowdin contributers!)</li>
+        </ul>
+        <h4>Fixes</h4>
+        <ul>
+            <li>The behavior of highlighting and revealing entries was inconsistent</li>
+            <li>The changelog dialog didn't work</li>
+            <li>The persistent notification was shown even after the app was killed</li>
+        </ul>
+        <h3>Version 1.0.3</h3>
+        <h4>New</h4>
+        <ul>
+            <li>Support for andOTP's new backup file format</li>
+        </ul>
+        <h3>Version 1.0.2</h3>
+        <h4>Fixes</h4>
+        <ul>
+            <li>Search feature on Huawei devices</li>
+        </ul>
+        <h4>Notes</h4>
+        <ul>
+            <li>Disabled automatic backups through the Google Play Store</li>
+        </ul>
+        <h3>Version 1.0.1</h3>
+        <h4>Notes</h4>
+        <ul>
+            <li>Temporarily disabled search feature on Huawei devices</li>
+        </ul>
+        <h3>Version 1.0</h3>
+        <h4>New</h4>
+        <ul>
+            <li>New icon</li>
+            <li>Overhaul of interaction with the entry list</li>
+            <li>Persistent notification while the vault is unlocked</li>
+            <li>Language override option</li>
+            <li>Support for importing from FreeOTP+</li>
+            <li>Ability to toggle password visibility during unlock</li>
+            <li>Support for deeplinking otpauth URIs</li>
+        </ul>
+        <h4>Fixes</h4>
+        <ul>
+            <li>Bad overall performance and high battery usage</li>
+            <li>Codes with an uneven number of digits are displayed incorrectly</li>
+            <li>Crash when entering a large value for OTP period</li>
+        </ul>
+    </body>
+</html>

app/src/main/java/com/beemdevelopment/aegis/AegisApplication.java

@@ -1,35 +1,121 @@
 package com.beemdevelopment.aegis;
 
 import android.app.Application;
+import android.app.NotificationChannel;
+import android.app.NotificationManager;
+import android.content.BroadcastReceiver;
+import android.content.Context;
 import android.content.Intent;
+import android.content.IntentFilter;
 import android.content.pm.ShortcutInfo;
 import android.content.pm.ShortcutManager;
 import android.graphics.drawable.Icon;
 import android.os.Build;
 
-import com.beemdevelopment.aegis.db.DatabaseManager;
-import com.beemdevelopment.aegis.ui.MainActivity;
-
+import androidx.annotation.NonNull;
 import androidx.annotation.RequiresApi;
+import androidx.lifecycle.Lifecycle;
+import androidx.lifecycle.LifecycleEventObserver;
+import androidx.lifecycle.LifecycleOwner;
+import androidx.lifecycle.ProcessLifecycleOwner;
 
+import com.beemdevelopment.aegis.services.NotificationService;
+import com.beemdevelopment.aegis.ui.MainActivity;
+import com.beemdevelopment.aegis.util.IOUtils;
+import com.beemdevelopment.aegis.vault.Vault;
+import com.beemdevelopment.aegis.vault.VaultFile;
+import com.beemdevelopment.aegis.vault.VaultFileCredentials;
+import com.beemdevelopment.aegis.vault.VaultManager;
+import com.beemdevelopment.aegis.vault.VaultManagerException;
+import com.mikepenz.iconics.Iconics;
+import com.mikepenz.material_design_iconic_typeface_library.MaterialDesignIconic;
+
+import java.util.ArrayList;
 import java.util.Collections;
+import java.util.List;
 
 public class AegisApplication extends Application {
-    private DatabaseManager _manager;
+    private VaultFile _vaultFile;
+    private VaultManager _manager;
     private Preferences _prefs;
+    private List<LockListener> _lockListeners;
+
+    private static final String CODE_LOCK_STATUS_ID = "lock_status_channel";
+    private static final String CODE_LOCK_VAULT_ACTION = "lock_vault";
 
     @Override
     public void onCreate() {
         super.onCreate();
-        _manager = new DatabaseManager(this);
         _prefs = new Preferences(this);
+        _lockListeners = new ArrayList<>();
+
+        Iconics.init(this);
+        Iconics.registerFont(new MaterialDesignIconic());
+
+        // listen for SCREEN_OFF events
+        ScreenOffReceiver receiver = new ScreenOffReceiver();
+        IntentFilter intentFilter = new IntentFilter();
+        intentFilter.addAction(Intent.ACTION_SCREEN_OFF);
+        intentFilter.addAction(CODE_LOCK_VAULT_ACTION);
+        registerReceiver(receiver, intentFilter);
+
+        // lock the app if the user moves the application to the background
+        ProcessLifecycleOwner.get().getLifecycle().addObserver(new AppLifecycleObserver());
+
+        // clear the cache directory on startup, to make sure no temporary vault export files remain
+        IOUtils.clearDirectory(getCacheDir(), false);
 
         if (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.N_MR1) {
             initAppShortcuts();
         }
+
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            initNotificationChannels();
+        }
     }
 
-    public DatabaseManager getDatabaseManager() {
+    public boolean isVaultLocked() {
+        return _manager == null;
+    }
+
+    /**
+     * Loads the vault file from disk at the default location, stores an internal
+     * reference to it for future use and returns it. This must only be called before
+     * initVaultManager() or after lock().
+     */
+    public VaultFile loadVaultFile() throws VaultManagerException {
+        if (!isVaultLocked()) {
+            throw new AssertionError("loadVaultFile() may only be called before initVaultManager() or after lock()");
+        }
+
+        if (_vaultFile == null) {
+            _vaultFile = VaultManager.readFile(this);
+        }
+
+        return _vaultFile;
+    }
+
+    /**
+     * Initializes the vault manager by decrypting the given vaultFile with the given
+     * creds. This removes the internal reference to the raw vault file.
+     */
+    public VaultManager initVaultManager(VaultFile vaultFile, VaultFileCredentials creds) throws VaultManagerException {
+        _vaultFile = null;
+        _manager = VaultManager.init(this, vaultFile, creds);
+        return _manager;
+    }
+
+    /**
+     * Initializes the vault manager with the given vault and creds. This removes the
+     * internal reference to the raw vault file.
+     */
+    public VaultManager initVaultManager(Vault vault, VaultFileCredentials creds) {
+        _vaultFile = null;
+        _manager = new VaultManager(this, vault, creds);
+        return _manager;
+    }
+
+    public VaultManager getVaultManager() {
         return _manager;
     }
 
@@ -37,6 +123,33 @@ public class AegisApplication extends Application {
         return _prefs;
     }
 
+    public boolean isAutoLockEnabled(int autoLockType) {
+        return _prefs.isAutoLockTypeEnabled(autoLockType) && !isVaultLocked() && _manager.isEncryptionEnabled();
+    }
+
+    public void registerLockListener(LockListener listener) {
+        _lockListeners.add(listener);
+    }
+
+    public void unregisterLockListener(LockListener listener) {
+        _lockListeners.remove(listener);
+    }
+
+    /**
+     * Locks the vault and the app.
+     * @param userInitiated whether or not the user initiated the lock in MainActivity.
+     */
+    public void lock(boolean userInitiated) {
+        _manager.destroy();
+        _manager = null;
+
+        for (LockListener listener : _lockListeners) {
+            listener.onLocked(userInitiated);
+        }
+
+        stopService(new Intent(AegisApplication.this, NotificationService.class));
+    }
+
     @RequiresApi(api = Build.VERSION_CODES.N_MR1)
     private void initAppShortcuts() {
         ShortcutManager shortcutManager = getSystemService(ShortcutManager.class);
@@ -46,15 +159,56 @@ public class AegisApplication extends Application {
 
         Intent intent = new Intent(this, MainActivity.class);
         intent.putExtra("action", "scan");
+        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
         intent.setAction(Intent.ACTION_MAIN);
 
         ShortcutInfo shortcut = new ShortcutInfo.Builder(this, "shortcut_new")
-                .setShortLabel(getString(R.string.new_profile))
-                .setLongLabel(getString(R.string.add_new_profile))
-                .setIcon(Icon.createWithResource(this, R.drawable.qr_scanner))
+                .setShortLabel(getString(R.string.new_entry))
+                .setLongLabel(getString(R.string.add_new_entry))
+                .setIcon(Icon.createWithResource(this, R.drawable.ic_qr_code))
                 .setIntent(intent)
                 .build();
 
         shortcutManager.setDynamicShortcuts(Collections.singletonList(shortcut));
     }
+
+    private void initNotificationChannels() {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            CharSequence name = getString(R.string.channel_name_lock_status);
+            String description = getString(R.string.channel_description_lock_status);
+            int importance = NotificationManager.IMPORTANCE_LOW;
+
+            NotificationChannel channel = new NotificationChannel(CODE_LOCK_STATUS_ID, name, importance);
+            channel.setDescription(description);
+
+            NotificationManager notificationManager = getSystemService(NotificationManager.class);
+            notificationManager.createNotificationChannel(channel);
+        }
+    }
+
+    private class AppLifecycleObserver implements LifecycleEventObserver {
+        @Override
+        public void onStateChanged(@NonNull LifecycleOwner source, @NonNull Lifecycle.Event event) {
+            if (event == Lifecycle.Event.ON_STOP && isAutoLockEnabled(Preferences.AUTO_LOCK_ON_MINIMIZE)) {
+                lock(false);
+            }
+        }
+    }
+
+    private class ScreenOffReceiver extends BroadcastReceiver {
+        @Override
+        public void onReceive(Context context, Intent intent) {
+            if (isAutoLockEnabled(Preferences.AUTO_LOCK_ON_DEVICE_LOCK)) {
+                lock(false);
+            }
+        }
+    }
+
+    public interface LockListener {
+        /**
+         * When called, the app/vault has been locked and the listener should perform its cleanup operations.
+         * @param userInitiated whether or not the user initiated the lock in MainActivity.
+         */
+        void onLocked(boolean userInitiated);
+    }
 }

app/src/main/java/com/beemdevelopment/aegis/Preferences.java

@@ -2,35 +2,113 @@ package com.beemdevelopment.aegis;
 
 import android.content.Context;
 import android.content.SharedPreferences;
+import android.content.res.Resources;
+import android.net.Uri;
+import android.os.Build;
 import android.preference.PreferenceManager;
 
+import java.util.Date;
+import java.util.Locale;
+import java.util.concurrent.TimeUnit;
+
 public class Preferences {
+    public static final int AUTO_LOCK_OFF = 1 << 0;
+    public static final int AUTO_LOCK_ON_BACK_BUTTON = 1 << 1;
+    public static final int AUTO_LOCK_ON_MINIMIZE = 1 << 2;
+    public static final int AUTO_LOCK_ON_DEVICE_LOCK = 1 << 3;
+
+    public static final int[] AUTO_LOCK_SETTINGS = {
+            AUTO_LOCK_ON_BACK_BUTTON,
+            AUTO_LOCK_ON_MINIMIZE,
+            AUTO_LOCK_ON_DEVICE_LOCK
+    };
+
     private SharedPreferences _prefs;
 
     public Preferences(Context context) {
         _prefs = PreferenceManager.getDefaultSharedPreferences(context);
-    }
 
-    public boolean isDarkModeEnabled() {
-        return _prefs.getBoolean("pref_dark_mode", false);
+        if (getPasswordReminderTimestamp().getTime() == 0) {
+            resetPasswordReminderTimestamp();
+        }
     }
 
     public boolean isTapToRevealEnabled() {
         return _prefs.getBoolean("pref_tap_to_reveal", false);
     }
 
+    public boolean isSearchAccountNameEnabled() {
+        return _prefs.getBoolean("pref_search_names", false);
+    }
+
+    public boolean isEntryHighlightEnabled() {
+        return _prefs.getBoolean("pref_highlight_entry", false);
+    }
+
+    public boolean isPanicTriggerEnabled() {
+        return _prefs.getBoolean("pref_panic_trigger", false);
+    }
+
     public boolean isSecureScreenEnabled() {
-        return _prefs.getBoolean("pref_secure_screen", true);
+        // screen security should be enabled by default, but not for debug builds
+        return _prefs.getBoolean("pref_secure_screen", !BuildConfig.DEBUG);
+    }
+
+    public boolean isPasswordReminderEnabled() {
+        return _prefs.getBoolean("pref_password_reminder", true);
+    }
+
+    public boolean isPasswordReminderNeeded() {
+        long diff = new Date().getTime() - getPasswordReminderTimestamp().getTime();
+        long days = TimeUnit.DAYS.convert(diff, TimeUnit.MILLISECONDS);
+        return isPasswordReminderEnabled() && days >= 30;
+    }
+
+    public Date getPasswordReminderTimestamp() {
+        return new Date(_prefs.getLong("pref_password_reminder_counter", 0));
+    }
+
+    public void resetPasswordReminderTimestamp() {
+        _prefs.edit().putLong("pref_password_reminder_counter", new Date().getTime()).apply();
     }
 
     public boolean isAccountNameVisible() {
-        return _prefs.getBoolean("pref_account_name", false);
+        return _prefs.getBoolean("pref_account_name", true);
+    }
+
+    public int getCodeGroupSize() {
+        if (_prefs.getBoolean("pref_code_group_size", false)) {
+            return 2;
+        } else {
+            return 3;
+        }
     }
 
     public boolean isIntroDone() {
         return _prefs.getBoolean("pref_intro", false);
     }
 
+    private int getAutoLockMask() {
+        final int def = AUTO_LOCK_ON_BACK_BUTTON | AUTO_LOCK_ON_DEVICE_LOCK;
+        if (!_prefs.contains("pref_auto_lock_mask")) {
+            return _prefs.getBoolean("pref_auto_lock", true) ? def : AUTO_LOCK_OFF;
+        }
+
+        return _prefs.getInt("pref_auto_lock_mask", def);
+    }
+
+    public boolean isAutoLockEnabled() {
+        return getAutoLockMask() != AUTO_LOCK_OFF;
+    }
+
+    public boolean isAutoLockTypeEnabled(int autoLockType) {
+        return (getAutoLockMask() & autoLockType) == autoLockType;
+    }
+
+    public void setAutoLockMask(int autoLock) {
+        _prefs.edit().putInt("pref_auto_lock_mask", autoLock).apply();
+    }
+
     public void setIntroDone(boolean done) {
         _prefs.edit().putBoolean("pref_intro", done).apply();
     }
@@ -39,12 +117,107 @@ public class Preferences {
         _prefs.edit().putInt("pref_tap_to_reveal_time", number).apply();
     }
 
+    public void setCurrentSortCategory(SortCategory category) {
+        _prefs.edit().putInt("pref_current_sort_category", category.ordinal()).apply();
+    }
+
+    public SortCategory getCurrentSortCategory() {
+        return SortCategory.fromInteger(_prefs.getInt("pref_current_sort_category", 0));
+    }
+
     public int getTapToRevealTime() {
         return _prefs.getInt("pref_tap_to_reveal_time", 30);
     }
 
+    public Theme getCurrentTheme() {
+        return Theme.fromInteger(_prefs.getInt("pref_current_theme", Theme.SYSTEM.ordinal()));
+    }
+
+    public void setCurrentTheme(Theme theme) {
+        _prefs.edit().putInt("pref_current_theme", theme.ordinal()).apply();
+    }
+
+    public ViewMode getCurrentViewMode() {
+        return ViewMode.fromInteger(_prefs.getInt("pref_current_view_mode", 0));
+    }
+
+    public void setCurrentViewMode(ViewMode viewMode) {
+        _prefs.edit().putInt("pref_current_view_mode", viewMode.ordinal()).apply();
+    }
 
     public int getTimeout() {
         return _prefs.getInt("pref_timeout", -1);
     }
+
+    public Locale getLocale() {
+        String lang = _prefs.getString("pref_lang", "system");
+
+        if (lang.equals("system")) {
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
+                return Resources.getSystem().getConfiguration().getLocales().get(0);
+            } else {
+                return Resources.getSystem().getConfiguration().locale;
+            }
+        }
+
+        String[] parts = lang.split("_");
+        if (parts.length == 1) {
+            return new Locale(parts[0]);
+        }
+
+        return new Locale(parts[0], parts[1]);
+    }
+
+    public boolean isBackupsEnabled() {
+        return _prefs.getBoolean("pref_backups", false);
+    }
+
+    public void setIsBackupsEnabled(boolean enabled) {
+        _prefs.edit().putBoolean("pref_backups", enabled).apply();
+    }
+
+    public Uri getBackupsLocation() {
+        String str = _prefs.getString("pref_backups_location", null);
+        if (str != null) {
+            return Uri.parse(str);
+        }
+
+        return null;
+    }
+
+    public void setBackupsLocation(Uri location) {
+        _prefs.edit().putString("pref_backups_location", location == null ? null : location.toString()).apply();
+    }
+
+    public int getBackupsVersionCount() {
+        return _prefs.getInt("pref_backups_versions", 5);
+    }
+
+    public void setBackupsVersionCount(int versions) {
+        _prefs.edit().putInt("pref_backups_versions", versions).apply();
+    }
+
+    public void setBackupsError(Exception e) {
+        _prefs.edit().putString("pref_backups_error", e == null ? null : e.toString()).apply();
+    }
+
+    public String getBackupsError() {
+        return _prefs.getString("pref_backups_error", null);
+    }
+
+    public boolean isPinKeyboardEnabled() {
+        return _prefs.getBoolean("pref_pin_keyboard", false);
+    }
+
+    public boolean isTimeSyncWarningEnabled() {
+        return _prefs.getBoolean("pref_warn_time_sync", true);
+    }
+
+    public void setIsTimeSyncWarningEnabled(boolean enabled) {
+        _prefs.edit().putBoolean("pref_warn_time_sync", enabled).apply();
+    }
+
+    public boolean isCopyOnTapEnabled() {
+        return _prefs.getBoolean("pref_copy_on_tap", false);
+    }
 }

app/src/main/java/com/beemdevelopment/aegis/SortCategory.java

@@ -0,0 +1,64 @@
+package com.beemdevelopment.aegis;
+
+import com.beemdevelopment.aegis.vault.VaultEntry;
+import com.beemdevelopment.aegis.helpers.comparators.AccountNameComparator;
+import com.beemdevelopment.aegis.helpers.comparators.IssuerNameComparator;
+
+import java.util.Collections;
+import java.util.Comparator;
+
+public enum SortCategory {
+    CUSTOM,
+    ACCOUNT,
+    ACCOUNT_REVERSED,
+    ISSUER,
+    ISSUER_REVERSED;
+
+    private static SortCategory[] _values;
+
+    static {
+        _values = values();
+    }
+
+    public static SortCategory fromInteger(int x) {
+        return _values[x];
+    }
+
+    public Comparator<VaultEntry> getComparator() {
+        Comparator<VaultEntry> comparator = null;
+
+        switch (this) {
+            case ACCOUNT:
+                comparator = new AccountNameComparator();
+                break;
+            case ACCOUNT_REVERSED:
+                comparator = Collections.reverseOrder(new AccountNameComparator());
+                break;
+            case ISSUER:
+                comparator = new IssuerNameComparator();
+                break;
+            case ISSUER_REVERSED:
+                comparator = Collections.reverseOrder(new IssuerNameComparator());
+                break;
+        }
+
+        return comparator;
+    }
+
+    public int getMenuItem() {
+        switch (this) {
+            case CUSTOM:
+                return R.id.menu_sort_custom;
+            case ACCOUNT:
+                return R.id.menu_sort_alphabetically_name;
+            case ACCOUNT_REVERSED:
+                return R.id.menu_sort_alphabetically_name_reverse;
+            case ISSUER:
+                return R.id.menu_sort_alphabetically;
+            case ISSUER_REVERSED:
+                return R.id.menu_sort_alphabetically_reverse;
+            default:
+                return R.id.menu_sort_custom;
+        }
+    }
+}

app/src/main/java/com/beemdevelopment/aegis/Theme.java

@@ -0,0 +1,19 @@
+package com.beemdevelopment.aegis;
+
+public enum Theme {
+    LIGHT,
+    DARK,
+    AMOLED,
+    SYSTEM,
+    SYSTEM_AMOLED;
+
+    private static Theme[] _values;
+
+    static {
+        _values = values();
+    }
+
+    public static Theme fromInteger(int x) {
+        return _values[x];
+    }
+}

app/src/main/java/com/beemdevelopment/aegis/ThemeMap.java

@@ -0,0 +1,23 @@
+package com.beemdevelopment.aegis;
+
+import com.google.common.collect.ImmutableMap;
+
+import java.util.Map;
+
+public class ThemeMap {
+    private ThemeMap() {
+
+    }
+
+    public static final Map<Theme, Integer> DEFAULT = ImmutableMap.of(
+            Theme.LIGHT, R.style.AppTheme,
+            Theme.DARK, R.style.AppTheme_Dark,
+            Theme.AMOLED, R.style.AppTheme_TrueBlack
+    );
+
+    public static final Map<Theme, Integer> NO_ACTION_BAR = ImmutableMap.of(
+            Theme.LIGHT, R.style.AppTheme_Light_NoActionBar,
+            Theme.DARK, R.style.AppTheme_Dark_NoActionBar,
+            Theme.AMOLED, R.style.AppTheme_TrueBlack_NoActionBar
+    );
+}

app/src/main/java/com/beemdevelopment/aegis/ViewMode.java

@@ -0,0 +1,44 @@
+package com.beemdevelopment.aegis;
+
+import androidx.annotation.LayoutRes;
+
+public enum ViewMode {
+    NORMAL,
+    COMPACT,
+    SMALL;
+
+    private static ViewMode[] _values;
+
+    static {
+        _values = values();
+    }
+
+    public static ViewMode fromInteger(int x) {
+        return _values[x];
+    }
+
+    @LayoutRes
+    public int getLayoutId() {
+        switch (this) {
+            case NORMAL:
+                return R.layout.card_entry;
+            case COMPACT:
+                return R.layout.card_entry_compact;
+            case SMALL:
+                return R.layout.card_entry_small;
+            default:
+                return R.layout.card_entry;
+        }
+    }
+
+    /**
+     * Retrieves the height (in dp) that the divider between entries should have in this view mode.
+     */
+    public float getDividerHeight() {
+        if (this == ViewMode.COMPACT) {
+            return 0;
+        }
+
+        return 20;
+    }
+}

app/src/main/java/com/beemdevelopment/aegis/crypto/CryptParameters.java

@@ -1,7 +1,7 @@
 package com.beemdevelopment.aegis.crypto;
 
+import com.beemdevelopment.aegis.encoding.EncodingException;
 import com.beemdevelopment.aegis.encoding.Hex;
-import com.beemdevelopment.aegis.encoding.HexException;
 
 import org.json.JSONException;
 import org.json.JSONObject;
@@ -30,7 +30,7 @@ public class CryptParameters implements Serializable {
         return obj;
     }
 
-    public static CryptParameters fromJson(JSONObject obj) throws JSONException, HexException {
+    public static CryptParameters fromJson(JSONObject obj) throws JSONException, EncodingException {
         byte[] nonce = Hex.decode(obj.getString("nonce"));
         byte[] tag = Hex.decode(obj.getString("tag"));
         return new CryptParameters(nonce, tag);

app/src/main/java/com/beemdevelopment/aegis/crypto/CryptoUtils.java

@@ -2,11 +2,13 @@ package com.beemdevelopment.aegis.crypto;
 
 import android.os.Build;
 
+import org.bouncycastle.crypto.generators.SCrypt;
+
 import java.io.ByteArrayOutputStream;
 import java.io.IOException;
 import java.nio.ByteBuffer;
 import java.nio.CharBuffer;
-import java.nio.charset.Charset;
+import java.nio.charset.StandardCharsets;
 import java.security.InvalidAlgorithmParameterException;
 import java.security.InvalidKeyException;
 import java.security.NoSuchAlgorithmException;
@@ -24,21 +26,24 @@ import javax.crypto.spec.GCMParameterSpec;
 import javax.crypto.spec.IvParameterSpec;
 import javax.crypto.spec.SecretKeySpec;
 
-import org.spongycastle.crypto.generators.SCrypt;
-
 public class CryptoUtils {
     public static final String CRYPTO_AEAD = "AES/GCM/NoPadding";
     public static final byte CRYPTO_AEAD_KEY_SIZE = 32;
     public static final byte CRYPTO_AEAD_TAG_SIZE = 16;
+    public static final byte CRYPTO_AEAD_NONCE_SIZE = 12;
 
     public static final int CRYPTO_SCRYPT_N = 1 << 15;
     public static final int CRYPTO_SCRYPT_r = 8;
     public static final int CRYPTO_SCRYPT_p = 1;
 
+    public static SecretKey deriveKey(byte[] input, SCryptParameters params) {
+        byte[] keyBytes = SCrypt.generate(input, params.getSalt(), params.getN(), params.getR(), params.getP(), CRYPTO_AEAD_KEY_SIZE);
+        return new SecretKeySpec(keyBytes, 0, keyBytes.length, "AES");
+    }
+
     public static SecretKey deriveKey(char[] password, SCryptParameters params) {
         byte[] bytes = toBytes(password);
-        byte[] keyBytes = SCrypt.generate(bytes, params.getSalt(), params.getN(), params.getR(), params.getP(), CRYPTO_AEAD_KEY_SIZE);
-        return new SecretKeySpec(keyBytes, 0, keyBytes.length, "AES");
+        return deriveKey(bytes, params);
     }
 
     public static Cipher createEncryptCipher(SecretKey key)
@@ -88,9 +93,14 @@ public class CryptoUtils {
 
     public static CryptResult decrypt(byte[] encrypted, Cipher cipher, CryptParameters params)
             throws IOException, BadPaddingException, IllegalBlockSizeException {
+        return decrypt(encrypted, 0, encrypted.length, cipher, params);
+    }
+
+    public static CryptResult decrypt(byte[] encrypted, int encryptedOffset, int encryptedLen, Cipher cipher, CryptParameters params)
+            throws IOException, BadPaddingException, IllegalBlockSizeException {
         // append the tag to the ciphertext
         ByteArrayOutputStream stream = new ByteArrayOutputStream();
-        stream.write(encrypted);
+        stream.write(encrypted, encryptedOffset, encryptedLen);
         stream.write(params.getTag());
 
         encrypted = stream.toByteArray();
@@ -120,9 +130,18 @@ public class CryptoUtils {
         return data;
     }
 
-    private static byte[] toBytes(char[] chars) {
+    public static byte[] toBytes(char[] chars) {
         CharBuffer charBuf = CharBuffer.wrap(chars);
-        ByteBuffer byteBuf = Charset.forName("UTF-8").encode(charBuf);
+        ByteBuffer byteBuf = StandardCharsets.UTF_8.encode(charBuf);
+        byte[] bytes = new byte[byteBuf.limit()];
+        byteBuf.get(bytes);
+        return bytes;
+    }
+
+    @Deprecated
+    public static byte[] toBytesOld(char[] chars) {
+        CharBuffer charBuf = CharBuffer.wrap(chars);
+        ByteBuffer byteBuf = StandardCharsets.UTF_8.encode(charBuf);
         return byteBuf.array();
     }
 }

app/src/main/java/com/beemdevelopment/aegis/crypto/KeyStoreHandle.java

@@ -2,9 +2,10 @@ package com.beemdevelopment.aegis.crypto;
 
 import android.os.Build;
 import android.security.keystore.KeyGenParameterSpec;
-import android.security.keystore.KeyPermanentlyInvalidatedException;
 import android.security.keystore.KeyProperties;
 
+import androidx.annotation.RequiresApi;
+
 import java.io.IOException;
 import java.security.InvalidAlgorithmParameterException;
 import java.security.InvalidKeyException;
@@ -12,8 +13,10 @@ import java.security.KeyStore;
 import java.security.KeyStoreException;
 import java.security.NoSuchAlgorithmException;
 import java.security.NoSuchProviderException;
+import java.security.ProviderException;
 import java.security.UnrecoverableKeyException;
 import java.security.cert.CertificateException;
+import java.util.Collections;
 
 import javax.crypto.Cipher;
 import javax.crypto.KeyGenerator;
@@ -58,6 +61,14 @@ public class KeyStoreHandle {
                     .build());
 
             return generator.generateKey();
+        } catch (ProviderException e) {
+            // a ProviderException can occur at runtime with buggy Keymaster HAL implementations
+            // so if this was caused by an android.security.KeyStoreException, throw a KeyStoreHandleException instead
+            Throwable cause = e.getCause();
+            if (cause != null && cause.getClass().getName().equals("android.security.KeyStoreException")) {
+                throw new KeyStoreHandleException(cause);
+            }
+            throw e;
         } catch (NoSuchAlgorithmException | NoSuchProviderException | InvalidAlgorithmParameterException e) {
             throw new KeyStoreHandleException(e);
         }
@@ -76,22 +87,29 @@ public class KeyStoreHandle {
             throw new KeyStoreHandleException(e);
         }
 
-        // try to initialize a dummy cipher
-        // and see if KeyPermanentlyInvalidatedException is thrown
-        if (isSupported()) {
-            try {
-                Cipher cipher = Cipher.getInstance(CryptoUtils.CRYPTO_AEAD);
-                cipher.init(Cipher.ENCRYPT_MODE, key);
-            } catch (KeyPermanentlyInvalidatedException e) {
-                return null;
-            } catch (NoSuchAlgorithmException | NoSuchPaddingException | InvalidKeyException e) {
-                throw new RuntimeException(e);
-            }
+        if (isSupported() && isKeyPermanentlyInvalidated(key)) {
+            return null;
         }
 
         return key;
     }
 
+    @RequiresApi(api = Build.VERSION_CODES.M)
+    private static boolean isKeyPermanentlyInvalidated(SecretKey key) {
+        // try to initialize a dummy cipher and see if an InvalidKeyException is thrown
+        try {
+            Cipher cipher = Cipher.getInstance(CryptoUtils.CRYPTO_AEAD);
+            cipher.init(Cipher.ENCRYPT_MODE, key);
+        } catch (InvalidKeyException e) {
+            // some devices throw a plain InvalidKeyException, not KeyPermanentlyInvalidatedException
+            return true;
+        } catch (NoSuchAlgorithmException | NoSuchPaddingException e) {
+            throw new RuntimeException(e);
+        }
+
+        return false;
+    }
+
     public void deleteKey(String id) throws KeyStoreHandleException {
         try {
             _keyStore.deleteEntry(id);
@@ -100,6 +118,16 @@ public class KeyStoreHandle {
         }
     }
 
+    public void clear() throws KeyStoreHandleException {
+        try {
+            for (String alias : Collections.list(_keyStore.aliases())) {
+                deleteKey(alias);
+            }
+        } catch (KeyStoreException e) {
+            throw new KeyStoreHandleException(e);
+        }
+    }
+
     public static boolean isSupported() {
         return Build.VERSION.SDK_INT >= Build.VERSION_CODES.M;
     }

app/src/main/java/com/beemdevelopment/aegis/crypto/MasterKey.java

@@ -17,7 +17,7 @@ public class MasterKey implements Serializable {
 
     public MasterKey(SecretKey key)  {
         if (key == null) {
-            throw new NullPointerException();
+            throw new IllegalArgumentException("Key cannot be null");
         }
         _key = key;
     }

app/src/main/java/com/beemdevelopment/aegis/crypto/otp/HOTP.java

@@ -2,8 +2,8 @@ package com.beemdevelopment.aegis.crypto.otp;
 
 import java.nio.ByteBuffer;
 import java.nio.ByteOrder;
-import java.security.NoSuchAlgorithmException;
 import java.security.InvalidKeyException;
+import java.security.NoSuchAlgorithmException;
 
 import javax.crypto.Mac;
 import javax.crypto.spec.SecretKeySpec;
@@ -12,7 +12,7 @@ public class HOTP {
     private HOTP() {
     }
 
-    public static String generateOTP(byte[] secret, String algo, int digits, long counter)
+    public static OTP generateOTP(byte[] secret, String algo, int digits, long counter)
             throws NoSuchAlgorithmException, InvalidKeyException {
         SecretKeySpec key = new SecretKeySpec(secret, "RAW");
 
@@ -30,18 +30,11 @@ public class HOTP {
         // truncate hash to get the HTOP value
         // http://tools.ietf.org/html/rfc4226#section-5.4
         int offset = hash[hash.length - 1] & 0xf;
-        long bin = ((hash[offset] & 0x7f) << 24)
+        int otp = ((hash[offset] & 0x7f) << 24)
                 | ((hash[offset + 1] & 0xff) << 16)
                 | ((hash[offset + 2] & 0xff) << 8)
                 | (hash[offset + 3] & 0xff);
-        long otp = bin % (long) Math.pow(10, digits);
 
-        // prepend zeroes if needed
-        StringBuilder res = new StringBuilder(Long.toString(otp));
-        while (res.length() < digits) {
-            res.insert(0, "0");
-        }
-
-        return res.toString();
+        return new OTP(otp, digits);
     }
 }

app/src/main/java/com/beemdevelopment/aegis/crypto/otp/OTP.java

@@ -0,0 +1,50 @@
+package com.beemdevelopment.aegis.crypto.otp;
+
+import androidx.annotation.NonNull;
+
+public class OTP {
+    private static final String STEAM_ALPHABET = "23456789BCDFGHJKMNPQRTVWXY";
+
+    private int _code;
+    private int _digits;
+
+    public OTP(int code, int digits) {
+        _code = code;
+        _digits = digits;
+    }
+
+    public int getCode() {
+        return _code;
+    }
+
+    public int getDigits() {
+        return _digits;
+    }
+
+    @NonNull
+    @Override
+    public String toString() {
+        int code = _code % (int) Math.pow(10, _digits);
+
+        // prepend zeroes if needed
+        StringBuilder res = new StringBuilder(Long.toString(code));
+        while (res.length() < _digits) {
+            res.insert(0, "0");
+        }
+
+        return res.toString();
+    }
+
+    public String toSteamString() {
+        int code = _code;
+        StringBuilder res = new StringBuilder();
+
+        for (int i = 0; i < _digits; i++) {
+            char c = STEAM_ALPHABET.charAt(code % STEAM_ALPHABET.length());
+            res.append(c);
+            code /= STEAM_ALPHABET.length();
+        }
+
+        return res.toString();
+    }
+}

app/src/main/java/com/beemdevelopment/aegis/crypto/otp/TOTP.java

@@ -8,13 +8,13 @@ public class TOTP {
     private TOTP() {
     }
 
-    public static String generateOTP(byte[] secret, String algo, int digits, long period, long seconds)
+    public static OTP generateOTP(byte[] secret, String algo, int digits, long period, long seconds)
             throws InvalidKeyException, NoSuchAlgorithmException {
         long counter = (long) Math.floor((double) seconds / period);
         return HOTP.generateOTP(secret, algo, digits, counter);
     }
 
-    public static String generateOTP(byte[] secret, String algo, int digits, long period)
+    public static OTP generateOTP(byte[] secret, String algo, int digits, long period)
             throws InvalidKeyException, NoSuchAlgorithmException {
         return generateOTP(secret, algo, digits, period, System.currentTimeMillis() / 1000);
     }

app/src/main/java/com/beemdevelopment/aegis/crypto/pins/GuardianProjectFDroidRSA2048.java

@@ -0,0 +1,14 @@
+package com.beemdevelopment.aegis.crypto.pins;
+
+import info.guardianproject.trustedintents.ApkSignaturePin;
+
+public final class GuardianProjectFDroidRSA2048 extends ApkSignaturePin {
+
+    public GuardianProjectFDroidRSA2048() {
+        fingerprints = new String[]{
+                "927f7e38b6acbecd84e02dace33efa9a7a2f0979750f28f585688ee38b3a4e28",
+        };
+        certificates = new byte[][]{
+                {48, -126, 3, 95, 48, -126, 2, 71, -96, 3, 2, 1, 2, 2, 4, 28, -30, 107, -102, 48, 13, 6, 9, 42, -122, 72, -122, -9, 13, 1, 1, 11, 5, 0, 48, 96, 49, 11, 48, 9, 6, 3, 85, 4, 6, 19, 2, 85, 75, 49, 12, 48, 10, 6, 3, 85, 4, 8, 19, 3, 79, 82, 71, 49, 12, 48, 10, 6, 3, 85, 4, 7, 19, 3, 79, 82, 71, 49, 19, 48, 17, 6, 3, 85, 4, 10, 19, 10, 102, 100, 114, 111, 105, 100, 46, 111, 114, 103, 49, 15, 48, 13, 6, 3, 85, 4, 11, 19, 6, 70, 68, 114, 111, 105, 100, 49, 15, 48, 13, 6, 3, 85, 4, 3, 19, 6, 70, 68, 114, 111, 105, 100, 48, 30, 23, 13, 49, 55, 49, 50, 48, 55, 49, 55, 51, 48, 52, 50, 90, 23, 13, 52, 53, 48, 52, 50, 52, 49, 55, 51, 48, 52, 50, 90, 48, 96, 49, 11, 48, 9, 6, 3, 85, 4, 6, 19, 2, 85, 75, 49, 12, 48, 10, 6, 3, 85, 4, 8, 19, 3, 79, 82, 71, 49, 12, 48, 10, 6, 3, 85, 4, 7, 19, 3, 79, 82, 71, 49, 19, 48, 17, 6, 3, 85, 4, 10, 19, 10, 102, 100, 114, 111, 105, 100, 46, 111, 114, 103, 49, 15, 48, 13, 6, 3, 85, 4, 11, 19, 6, 70, 68, 114, 111, 105, 100, 49, 15, 48, 13, 6, 3, 85, 4, 3, 19, 6, 70, 68, 114, 111, 105, 100, 48, -126, 1, 34, 48, 13, 6, 9, 42, -122, 72, -122, -9, 13, 1, 1, 1, 5, 0, 3, -126, 1, 15, 0, 48, -126, 1, 10, 2, -126, 1, 1, 0, -107, -115, -106, 1, -26, 72, -105, -99, 62, 3, -55, 34, 99, -112, -68, -20, -115, 31, 34, 118, -50, 12, -32, -59, 74, -58, -37, -87, 21, 105, 36, -82, 13, -51, 66, 4, 55, -111, 13, -46, -7, -69, -15, 36, 118, -7, 101, -86, 123, -83, -103, 110, 116, -54, 112, 46, 12, 96, -76, -48, -70, -33, -81, 52, 59, 73, 107, -126, -72, -25, 32, 93, 29, -20, 5, -41, -27, 123, -9, 104, -31, -59, -1, -83, -93, 99, 85, -116, -62, -55, 18, -63, 6, -51, -110, 33, 9, 7, -49, 102, -20, -122, -124, -68, 93, -102, 31, 48, 86, 96, -99, 105, -52, 95, 12, 57, 99, 12, -24, 70, 40, -99, -20, -21, -85, -70, -105, 95, 117, -31, 126, -126, -39, 46, -62, 59, -23, -74, 108, -12, -56, -40, -96, 79, -37, -82, 1, 99, -104, 48, -60, 92, 14, 109, 127, -22, 31, 115, -27, 108, 9, 92, 118, -45, 103, 117, 57, -50, -82, 114, -113, 68, -82, 87, 96, 111, 72, 65, -63, 12, 31, -34, -31, -55, -101, 101, 101, 59, 73, -119, -122, 82, 28, 47, -108, -85, 59, 46, 89, -93, -1, 9, -11, -51, 63, -44, 109, -76, -103, -26, -49, -80, 6, 52, -27, 73, -104, 40, 2, -101, -124, 60, -52, -105, -70, -24, -62, 88, 38, 53, -99, -92, 31, 119, 26, 79, 60, -124, 25, -115, -89, -115, -109, 0, 6, 122, -78, 116, 82, 3, 39, -67, 45, -43, 17, -39, 2, 3, 1, 0, 1, -93, 33, 48, 31, 48, 29, 6, 3, 85, 29, 14, 4, 22, 4, 20, 63, 109, -42, -109, 25, 22, 7, -37, -22, -41, -38, 58, -56, 2, -68, -38, -22, 65, -28, -60, 48, 13, 6, 9, 42, -122, 72, -122, -9, 13, 1, 1, 11, 5, 0, 3, -126, 1, 1, 0, 94, 17, 31, 36, 85, -11, 85, 44, 19, -80, -20, -92, -118, 93, 40, 45, 96, 31, -3, -37, -110, -96, 102, 81, 61, -74, -125, -117, -112, 58, -47, 17, 78, -18, 111, -116, 26, -91, 73, 100, 84, -99, 21, 87, 73, -106, 108, -51, -125, -21, 119, -88, -78, 2, 82, -109, -64, -9, -86, -112, -115, 66, -86, 46, 71, 107, -65, 96, -102, 47, 35, -45, -126, 33, 34, 121, -25, -85, -121, -56, -42, 22, -1, -95, -86, 81, 100, -70, 113, 104, -73, 22, -19, 79, -19, 52, 62, 42, 76, -112, 94, -34, 42, -57, -75, -90, -58, 118, 127, -106, -39, 108, -56, -79, 103, -33, 22, 3, 47, 103, -76, -81, 53, -22, -44, -26, -102, 63, -99, 39, 38, -108, 75, 33, 10, 25, -110, -125, -115, 114, -69, 73, -112, 36, 74, 77, -82, -44, 29, -123, -8, -117, 71, -105, 15, -109, 51, 22, 4, 80, 1, 43, 118, 121, -113, -70, 83, -56, 82, -110, 4, -63, 16, -57, 126, -70, 81, 73, 61, 2, -61, 24, -14, -10, 4, -21, 90, 24, 66, 41, -57, -60, -113, -18, -54, -1, 103, -75, 32, -64, 67, 103, 109, -79, -12, -113, -27, 114, 89, 116, 115, -13, -123, -70, 61, -41, -46, -118, 29, -105, -97, -75, 39, -51, 60, 88, 125, 55, -46, -95, 52, 57, 52, -115, 80, 44, 109, 119, -116, -62, -77, -74, -88, 41, 57, -65, -71, -115, -67, 23, 66, -21, 56, 51, -91, 109},};
+    }
+}

app/src/main/java/com/beemdevelopment/aegis/crypto/pins/GuardianProjectFDroidRSA4096.java

@@ -0,0 +1,14 @@
+package com.beemdevelopment.aegis.crypto.pins;
+
+import info.guardianproject.trustedintents.ApkSignaturePin;
+
+public final class GuardianProjectFDroidRSA4096 extends ApkSignaturePin {
+
+    public GuardianProjectFDroidRSA4096() {
+        fingerprints = new String[]{
+                "927f7e38b6acbecd84e02dace33efa9a7a2f0979750f28f585688ee38b3a4e28",
+        };
+        certificates = new byte[][]{
+                {48, -126, 3, 95, 48, -126, 2, 71, -96, 3, 2, 1, 2, 2, 4, 28, -30, 107, -102, 48, 13, 6, 9, 42, -122, 72, -122, -9, 13, 1, 1, 11, 5, 0, 48, 96, 49, 11, 48, 9, 6, 3, 85, 4, 6, 19, 2, 85, 75, 49, 12, 48, 10, 6, 3, 85, 4, 8, 19, 3, 79, 82, 71, 49, 12, 48, 10, 6, 3, 85, 4, 7, 19, 3, 79, 82, 71, 49, 19, 48, 17, 6, 3, 85, 4, 10, 19, 10, 102, 100, 114, 111, 105, 100, 46, 111, 114, 103, 49, 15, 48, 13, 6, 3, 85, 4, 11, 19, 6, 70, 68, 114, 111, 105, 100, 49, 15, 48, 13, 6, 3, 85, 4, 3, 19, 6, 70, 68, 114, 111, 105, 100, 48, 30, 23, 13, 49, 55, 49, 50, 48, 55, 49, 55, 51, 48, 52, 50, 90, 23, 13, 52, 53, 48, 52, 50, 52, 49, 55, 51, 48, 52, 50, 90, 48, 96, 49, 11, 48, 9, 6, 3, 85, 4, 6, 19, 2, 85, 75, 49, 12, 48, 10, 6, 3, 85, 4, 8, 19, 3, 79, 82, 71, 49, 12, 48, 10, 6, 3, 85, 4, 7, 19, 3, 79, 82, 71, 49, 19, 48, 17, 6, 3, 85, 4, 10, 19, 10, 102, 100, 114, 111, 105, 100, 46, 111, 114, 103, 49, 15, 48, 13, 6, 3, 85, 4, 11, 19, 6, 70, 68, 114, 111, 105, 100, 49, 15, 48, 13, 6, 3, 85, 4, 3, 19, 6, 70, 68, 114, 111, 105, 100, 48, -126, 1, 34, 48, 13, 6, 9, 42, -122, 72, -122, -9, 13, 1, 1, 1, 5, 0, 3, -126, 1, 15, 0, 48, -126, 1, 10, 2, -126, 1, 1, 0, -107, -115, -106, 1, -26, 72, -105, -99, 62, 3, -55, 34, 99, -112, -68, -20, -115, 31, 34, 118, -50, 12, -32, -59, 74, -58, -37, -87, 21, 105, 36, -82, 13, -51, 66, 4, 55, -111, 13, -46, -7, -69, -15, 36, 118, -7, 101, -86, 123, -83, -103, 110, 116, -54, 112, 46, 12, 96, -76, -48, -70, -33, -81, 52, 59, 73, 107, -126, -72, -25, 32, 93, 29, -20, 5, -41, -27, 123, -9, 104, -31, -59, -1, -83, -93, 99, 85, -116, -62, -55, 18, -63, 6, -51, -110, 33, 9, 7, -49, 102, -20, -122, -124, -68, 93, -102, 31, 48, 86, 96, -99, 105, -52, 95, 12, 57, 99, 12, -24, 70, 40, -99, -20, -21, -85, -70, -105, 95, 117, -31, 126, -126, -39, 46, -62, 59, -23, -74, 108, -12, -56, -40, -96, 79, -37, -82, 1, 99, -104, 48, -60, 92, 14, 109, 127, -22, 31, 115, -27, 108, 9, 92, 118, -45, 103, 117, 57, -50, -82, 114, -113, 68, -82, 87, 96, 111, 72, 65, -63, 12, 31, -34, -31, -55, -101, 101, 101, 59, 73, -119, -122, 82, 28, 47, -108, -85, 59, 46, 89, -93, -1, 9, -11, -51, 63, -44, 109, -76, -103, -26, -49, -80, 6, 52, -27, 73, -104, 40, 2, -101, -124, 60, -52, -105, -70, -24, -62, 88, 38, 53, -99, -92, 31, 119, 26, 79, 60, -124, 25, -115, -89, -115, -109, 0, 6, 122, -78, 116, 82, 3, 39, -67, 45, -43, 17, -39, 2, 3, 1, 0, 1, -93, 33, 48, 31, 48, 29, 6, 3, 85, 29, 14, 4, 22, 4, 20, 63, 109, -42, -109, 25, 22, 7, -37, -22, -41, -38, 58, -56, 2, -68, -38, -22, 65, -28, -60, 48, 13, 6, 9, 42, -122, 72, -122, -9, 13, 1, 1, 11, 5, 0, 3, -126, 1, 1, 0, 94, 17, 31, 36, 85, -11, 85, 44, 19, -80, -20, -92, -118, 93, 40, 45, 96, 31, -3, -37, -110, -96, 102, 81, 61, -74, -125, -117, -112, 58, -47, 17, 78, -18, 111, -116, 26, -91, 73, 100, 84, -99, 21, 87, 73, -106, 108, -51, -125, -21, 119, -88, -78, 2, 82, -109, -64, -9, -86, -112, -115, 66, -86, 46, 71, 107, -65, 96, -102, 47, 35, -45, -126, 33, 34, 121, -25, -85, -121, -56, -42, 22, -1, -95, -86, 81, 100, -70, 113, 104, -73, 22, -19, 79, -19, 52, 62, 42, 76, -112, 94, -34, 42, -57, -75, -90, -58, 118, 127, -106, -39, 108, -56, -79, 103, -33, 22, 3, 47, 103, -76, -81, 53, -22, -44, -26, -102, 63, -99, 39, 38, -108, 75, 33, 10, 25, -110, -125, -115, 114, -69, 73, -112, 36, 74, 77, -82, -44, 29, -123, -8, -117, 71, -105, 15, -109, 51, 22, 4, 80, 1, 43, 118, 121, -113, -70, 83, -56, 82, -110, 4, -63, 16, -57, 126, -70, 81, 73, 61, 2, -61, 24, -14, -10, 4, -21, 90, 24, 66, 41, -57, -60, -113, -18, -54, -1, 103, -75, 32, -64, 67, 103, 109, -79, -12, -113, -27, 114, 89, 116, 115, -13, -123, -70, 61, -41, -46, -118, 29, -105, -97, -75, 39, -51, 60, 88, 125, 55, -46, -95, 52, 57, 52, -115, 80, 44, 109, 119, -116, -62, -77, -74, -88, 41, 57, -65, -71, -115, -67, 23, 66, -21, 56, 51, -91, 109},};
+    }
+}

app/src/main/java/com/beemdevelopment/aegis/db/Database.java

@@ -1,77 +0,0 @@
-package com.beemdevelopment.aegis.db;
-
-import com.beemdevelopment.aegis.encoding.Base64Exception;
-import com.beemdevelopment.aegis.otp.OtpInfoException;
-
-import org.json.JSONArray;
-import org.json.JSONException;
-import org.json.JSONObject;
-
-import java.util.List;
-import java.util.UUID;
-
-public class Database {
-    private static final int VERSION = 1;
-    private DatabaseEntryList _entries = new DatabaseEntryList();
-
-    public JSONObject toJson() {
-        try {
-            JSONArray array = new JSONArray();
-            for (DatabaseEntry e : _entries) {
-                array.put(e.toJson());
-            }
-
-            JSONObject obj = new JSONObject();
-            obj.put("version", VERSION);
-            obj.put("entries", array);
-            return obj;
-        } catch (JSONException e) {
-            throw new RuntimeException(e);
-        }
-    }
-
-    public static Database fromJson(JSONObject obj) throws DatabaseException {
-        Database db = new Database();
-
-        try {
-            int ver = obj.getInt("version");
-            if (ver != VERSION) {
-                throw new DatabaseException("Unsupported version");
-            }
-
-            JSONArray array = obj.getJSONArray("entries");
-            for (int i = 0; i < array.length(); i++) {
-                DatabaseEntry entry = DatabaseEntry.fromJson(array.getJSONObject(i));
-                db.addEntry(entry);
-            }
-        } catch (Base64Exception | OtpInfoException | JSONException e) {
-            throw new DatabaseException(e);
-        }
-
-        return db;
-    }
-
-    public void addEntry(DatabaseEntry entry) {
-        _entries.add(entry);
-    }
-
-    public void removeEntry(DatabaseEntry entry) {
-        _entries.remove(entry);
-    }
-
-    public void replaceEntry(DatabaseEntry newEntry) {
-        _entries.replace(newEntry);
-    }
-
-    public void swapEntries(DatabaseEntry entry1, DatabaseEntry entry2) {
-        _entries.swap(entry1, entry2);
-    }
-
-    public List<DatabaseEntry> getEntries() {
-        return _entries.getList();
-    }
-
-    public DatabaseEntry getEntryByUUID(UUID uuid) {
-        return _entries.getByUUID(uuid);
-    }
-}

app/src/main/java/com/beemdevelopment/aegis/db/DatabaseEntryList.java

@@ -1,62 +0,0 @@
-package com.beemdevelopment.aegis.db;
-
-import androidx.annotation.NonNull;
-
-import java.io.Serializable;
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.Iterator;
-import java.util.List;
-import java.util.UUID;
-
-public class DatabaseEntryList implements Iterable<DatabaseEntry>, Serializable {
-    private List<DatabaseEntry> _entries = new ArrayList<>();
-
-    @NonNull
-    @Override
-    public Iterator<DatabaseEntry> iterator() {
-        return _entries.iterator();
-    }
-
-    public void add(DatabaseEntry entry) {
-        if (getByUUID(entry.getUUID()) != null) {
-            throw new AssertionError("entry found with the same uuid");
-        }
-        _entries.add(entry);
-    }
-
-    public void remove(DatabaseEntry entry) {
-        entry = mustGetByUUID(entry.getUUID());
-        _entries.remove(entry);
-    }
-
-    public void replace(DatabaseEntry newEntry) {
-        DatabaseEntry oldEntry = mustGetByUUID(newEntry.getUUID());
-        _entries.set(_entries.indexOf(oldEntry), newEntry);
-    }
-
-    public void swap(DatabaseEntry entry1, DatabaseEntry entry2) {
-        Collections.swap(_entries, _entries.indexOf(entry1), _entries.indexOf(entry2));
-    }
-
-    public List<DatabaseEntry> getList() {
-        return Collections.unmodifiableList(_entries);
-    }
-
-    public DatabaseEntry getByUUID(UUID uuid) {
-        for (DatabaseEntry entry : _entries) {
-            if (entry.getUUID().equals(uuid)) {
-                return entry;
-            }
-        }
-        return null;
-    }
-
-    private DatabaseEntry mustGetByUUID(UUID uuid) {
-        DatabaseEntry entry = getByUUID(uuid);
-        if (entry == null) {
-            throw new AssertionError("no entry found with the same uuid");
-        }
-        return entry;
-    }
-}

app/src/main/java/com/beemdevelopment/aegis/db/DatabaseException.java

@@ -1,11 +0,0 @@
-package com.beemdevelopment.aegis.db;
-
-public class DatabaseException extends Exception {
-    public DatabaseException(Throwable cause) {
-        super(cause);
-    }
-
-    public DatabaseException(String message) {
-        super(message);
-    }
-}

app/src/main/java/com/beemdevelopment/aegis/db/DatabaseFileException.java

@@ -1,11 +0,0 @@
-package com.beemdevelopment.aegis.db;
-
-public class DatabaseFileException extends Exception {
-    public DatabaseFileException(Throwable cause) {
-        super(cause);
-    }
-
-    public DatabaseFileException(String message) {
-        super(message);
-    }
-}

app/src/main/java/com/beemdevelopment/aegis/db/DatabaseManager.java

@@ -1,236 +0,0 @@
-package com.beemdevelopment.aegis.db;
-
-import android.content.Context;
-import android.os.Environment;
-
-import org.json.JSONObject;
-
-import java.io.DataInputStream;
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.FileOutputStream;
-import java.io.IOException;
-import java.text.Collator;
-import java.util.List;
-import java.util.TreeSet;
-import java.util.UUID;
-
-import com.beemdevelopment.aegis.BuildConfig;
-import com.beemdevelopment.aegis.R;
-
-public class DatabaseManager {
-    private static final String FILENAME = "aegis.json";
-    private static final String FILENAME_EXPORT = "aegis_export.json";
-    private static final String FILENAME_EXPORT_PLAIN = "aegis_export_plain.json";
-
-    private Database _db;
-    private DatabaseFile _file;
-    private DatabaseFileCredentials _creds;
-    private boolean _encrypt;
-
-    private Context _context;
-
-    public DatabaseManager(Context context) {
-        _context = context;
-    }
-
-    public boolean fileExists() {
-        File file = new File(_context.getFilesDir(), FILENAME);
-        return file.exists() && file.isFile();
-    }
-
-    public void load() throws DatabaseManagerException {
-        assertState(true, false);
-
-        try (FileInputStream file = _context.openFileInput(FILENAME)) {
-            byte[] fileBytes = new byte[(int) file.getChannel().size()];
-            DataInputStream stream = new DataInputStream(file);
-            stream.readFully(fileBytes);
-            stream.close();
-
-            _file = DatabaseFile.fromBytes(fileBytes);
-            _encrypt = _file.isEncrypted();
-            if (!isEncryptionEnabled()) {
-                JSONObject obj = _file.getContent();
-                _db = Database.fromJson(obj);
-            }
-        } catch (IOException | DatabaseFileException | DatabaseException e) {
-            throw new DatabaseManagerException(e);
-        }
-    }
-
-    public void lock() {
-        assertState(false, true);
-        _creds = null;
-        _db = null;
-    }
-
-    public void unlock(DatabaseFileCredentials creds) throws DatabaseManagerException {
-        assertState(true, true);
-
-        try {
-            JSONObject obj = _file.getContent(creds);
-            _db = Database.fromJson(obj);
-            _creds = creds;
-        } catch (DatabaseFileException | DatabaseException e) {
-            throw new DatabaseManagerException(e);
-        }
-    }
-
-    public static void save(Context context, DatabaseFile file) throws DatabaseManagerException {
-        byte[] bytes = file.toBytes();
-        try (FileOutputStream stream = context.openFileOutput(FILENAME, Context.MODE_PRIVATE)) {
-            stream.write(bytes);
-        } catch (IOException e) {
-            throw new DatabaseManagerException(e);
-        }
-    }
-
-    public void save() throws DatabaseManagerException {
-        assertState(false, true);
-
-        try {
-            JSONObject obj = _db.toJson();
-            if (isEncryptionEnabled()) {
-                _file.setContent(obj, _creds);
-            } else {
-                _file.setContent(obj);
-            }
-            save(_context, _file);
-        } catch (DatabaseFileException e) {
-            throw new DatabaseManagerException(e);
-        }
-    }
-
-    public String export(boolean encrypt) throws DatabaseManagerException {
-        assertState(false, true);
-
-        try {
-            DatabaseFile dbFile = new DatabaseFile();
-            if (encrypt && isEncryptionEnabled()) {
-                dbFile.setContent(_db.toJson(), _creds);
-            } else {
-                dbFile.setContent(_db.toJson());
-            }
-
-            String dirName = !BuildConfig.DEBUG ? _context.getString(R.string.app_name) : _context.getString(R.string.app_name_dev);
-            File dir = new File(Environment.getExternalStorageDirectory(), dirName);
-            if (!dir.exists() && !dir.mkdirs()) {
-                throw new IOException("error creating external storage directory");
-            }
-
-            byte[] bytes = dbFile.toBytes();
-            File file = new File(dir.getAbsolutePath(), encrypt ? FILENAME_EXPORT : FILENAME_EXPORT_PLAIN);
-            try (FileOutputStream stream = new FileOutputStream(file)) {
-                stream.write(bytes);
-            }
-
-            return file.getAbsolutePath();
-        } catch (IOException | DatabaseFileException e) {
-            throw new DatabaseManagerException(e);
-        }
-    }
-
-    public void addEntry(DatabaseEntry entry) {
-        assertState(false, true);
-        _db.addEntry(entry);
-    }
-
-    public void removeEntry(DatabaseEntry entry) {
-        assertState(false, true);
-        _db.removeEntry(entry);
-    }
-
-    public void replaceEntry(DatabaseEntry entry) {
-        assertState(false, true);
-        _db.replaceEntry(entry);
-    }
-
-    public void swapEntries(DatabaseEntry entry1, DatabaseEntry entry2) {
-        assertState(false, true);
-        _db.swapEntries(entry1, entry2);
-    }
-
-    public List<DatabaseEntry> getEntries() {
-        assertState(false, true);
-        return _db.getEntries();
-    }
-
-    public DatabaseEntry getEntryByUUID(UUID uuid) {
-        assertState(false, true);
-        return _db.getEntryByUUID(uuid);
-    }
-
-    public TreeSet<String> getGroups() {
-        assertState(false, true);
-
-        TreeSet<String> groups = new TreeSet<>(Collator.getInstance());
-        for (DatabaseEntry entry : getEntries()) {
-            String group = entry.getGroup();
-            if (group != null) {
-                groups.add(group);
-            }
-        }
-        return groups;
-    }
-
-    public DatabaseFileCredentials getCredentials() {
-        assertState(false, true);
-        return _creds;
-    }
-
-    public void setCredentials(DatabaseFileCredentials creds) {
-        assertState(false, true);
-        _creds = creds;
-    }
-
-    public DatabaseFile.Header getFileHeader() {
-        assertLoaded(true);
-        return _file.getHeader();
-    }
-
-    public boolean isEncryptionEnabled() {
-        assertLoaded(true);
-        return _encrypt;
-    }
-
-    public void enableEncryption(DatabaseFileCredentials creds) throws DatabaseManagerException {
-        assertState(false, true);
-        _creds = creds;
-        _encrypt = true;
-        save();
-    }
-
-    public void disableEncryption() throws DatabaseManagerException {
-        assertState(false, true);
-        _creds = null;
-        _encrypt = false;
-        save();
-    }
-
-    public boolean isLoaded() {
-        return _file != null;
-    }
-
-    public boolean isLocked() {
-        return _db == null;
-    }
-
-    private void assertState(boolean locked, boolean loaded) {
-        assertLoaded(loaded);
-
-        if (isLocked() && !locked) {
-            throw new AssertionError("database file has not been unlocked yet");
-        } else if (!isLocked() && locked) {
-            throw new AssertionError("database file has already been unlocked");
-        }
-    }
-
-    private void assertLoaded(boolean loaded) {
-        if (isLoaded() && !loaded) {
-            throw new AssertionError("database file has already been loaded");
-        } else if (!isLoaded() && loaded) {
-            throw new AssertionError("database file has not been loaded yet");
-        }
-    }
-}

app/src/main/java/com/beemdevelopment/aegis/db/DatabaseManagerException.java

@@ -1,7 +0,0 @@
-package com.beemdevelopment.aegis.db;
-
-public class DatabaseManagerException extends Exception {
-    public DatabaseManagerException(Throwable cause) {
-        super(cause);
-    }
-}

app/src/main/java/com/beemdevelopment/aegis/db/slots/FingerprintSlot.java

@@ -1,20 +0,0 @@
-package com.beemdevelopment.aegis.db.slots;
-
-import com.beemdevelopment.aegis.crypto.CryptParameters;
-
-import java.util.UUID;
-
-public class FingerprintSlot extends RawSlot {
-    public FingerprintSlot() {
-        super();
-    }
-
-    FingerprintSlot(UUID uuid, byte[] key, CryptParameters keyParams) {
-        super(uuid, key, keyParams);
-    }
-
-    @Override
-    public byte getType() {
-        return TYPE_FINGERPRINT;
-    }
-}

app/src/main/java/com/beemdevelopment/aegis/encoding/Base32.java

@@ -1,155 +1,21 @@
 package com.beemdevelopment.aegis.encoding;
 
-// modified for use in Aegis
+import com.google.common.io.BaseEncoding;
 
-/* (PD) 2001 The Bitzi Corporation
- * Please see http://bitzi.com/publicdomain for more info.
- *
- * As modified by Patrick Woodworth:
- *
- * Copyright 2011 Patrick Woodworth
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-import java.util.Arrays;
-
-/**
- * Base32 - encodes and decodes RFC3548 Base32
- * (see http://www.faqs.org/rfcs/rfc3548.html )
- *
- * @author Robert Kaye
- * @author Gordon Mohr
- */
 public class Base32 {
-    private static final String base32Chars =
-            "ABCDEFGHIJKLMNOPQRSTUVWXYZ234567";
-    private static final int[] base32Lookup =
-            { 0xFF,0xFF,0x1A,0x1B,0x1C,0x1D,0x1E,0x1F, // '0', '1', '2', '3', '4', '5', '6', '7'
-                    0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF, // '8', '9', ':', ';', '<', '=', '>', '?'
-                    0xFF,0x00,0x01,0x02,0x03,0x04,0x05,0x06, // '@', 'A', 'B', 'C', 'D', 'E', 'F', 'G'
-                    0x07,0x08,0x09,0x0A,0x0B,0x0C,0x0D,0x0E, // 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O'
-                    0x0F,0x10,0x11,0x12,0x13,0x14,0x15,0x16, // 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W'
-                    0x17,0x18,0x19,0xFF,0xFF,0xFF,0xFF,0xFF, // 'X', 'Y', 'Z', '[', '\', ']', '^', '_'
-                    0xFF,0x00,0x01,0x02,0x03,0x04,0x05,0x06, // '`', 'a', 'b', 'c', 'd', 'e', 'f', 'g'
-                    0x07,0x08,0x09,0x0A,0x0B,0x0C,0x0D,0x0E, // 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o'
-                    0x0F,0x10,0x11,0x12,0x13,0x14,0x15,0x16, // 'p', 'q', 'r', 's', 't', 'u', 'v', 'w'
-                    0x17,0x18,0x19,0xFF,0xFF,0xFF,0xFF,0xFF  // 'x', 'y', 'z', '{', '|', '}', '~', 'DEL'
-            };
+    private Base32() {
 
-    /**
-     * Encodes byte array to Base32 String.
-     *
-     * @param bytes Bytes to encode.
-     * @return Encoded byte array <code>bytes</code> as a String.
-     *
-     */
-    public static char[] encode(final byte[] bytes) {
-        int i = 0, index = 0, digit = 0, j = 0;
-        int currByte, nextByte;
-        char[] base32 = new char[(bytes.length + 7) * 8 / 5];
-
-        while (i < bytes.length) {
-            currByte = (bytes[i] >= 0) ? bytes[i] : (bytes[i] + 256); // unsign
-
-            /* Is the current digit going to span a byte boundary? */
-            if (index > 3) {
-                if ((i + 1) < bytes.length) {
-                    nextByte =
-                            (bytes[i + 1] >= 0) ? bytes[i + 1] : (bytes[i + 1] + 256);
-                } else {
-                    nextByte = 0;
-                }
-
-                digit = currByte & (0xFF >> index);
-                index = (index + 5) % 8;
-                digit <<= index;
-                digit |= nextByte >> (8 - index);
-                i++;
-            } else {
-                digit = (currByte >> (8 - (index + 5))) & 0x1F;
-                index = (index + 5) % 8;
-                if (index == 0)
-                    i++;
-            }
-            base32[j++] = base32Chars.charAt(digit);
-        }
-
-        return Arrays.copyOf(base32, j);
     }
 
-    /**
-     * Decodes the given Base32 String to a raw byte array.
-     *
-     * @param base32
-     * @return Decoded <code>base32</code> String as a raw byte array.
-     */
-    public static byte[] decode(final char[] base32) throws Base32Exception {
-        int i, index, lookup, offset, digit;
-        byte[] bytes = new byte[base32.length * 5 / 8];
-
-        for (i = 0, index = 0, offset = 0; i < base32.length; i++) {
-            // stop decoding when a padding char is encountered
-            if (base32[i] == '=') {
-                // make sure the rest is also padding, but don't bother verifying the length
-                for (int j = i + 1; j < base32.length; j++) {
-                    if (base32[j] != '=') {
-                        throw new Base32Exception("bad padding");
-                    }
-                }
-                break;
-            }
-
-            lookup = base32[i] - '0';
-            digit = decodeDigit(lookup);
-
-            if (index <= 3) {
-                index = (index + 5) % 8;
-                if (index == 0) {
-                    bytes[offset] |= digit;
-                    offset++;
-                    if (offset >= bytes.length)
-                        break;
-                } else {
-                    bytes[offset] |= digit << (8 - index);
-                }
-            } else {
-                index = (index + 5) % 8;
-                bytes[offset] |= (digit >>> index);
-                offset++;
-
-                if (offset >= bytes.length) {
-                    break;
-                }
-                bytes[offset] |= digit << (8 - index);
-            }
+    public static byte[] decode(String s) throws EncodingException {
+        try {
+            return BaseEncoding.base32().decode(s.toUpperCase());
+        } catch (IllegalArgumentException e) {
+            throw new EncodingException(e);
         }
-        return bytes;
     }
 
-    private static int decodeDigit(int c) throws Base32Exception {
-        /* Skip chars outside the lookup table */
-        if (c < 0 || c >= base32Lookup.length) {
-            throw new Base32Exception("char not found in base32 lookup table");
-        }
-
-        int digit = base32Lookup[c];
-
-        /* If this digit is not in the table, ignore it */
-        if (digit == 0xFF) {
-            throw new Base32Exception("char not found in base32 lookup table");
-        }
-
-        return digit;
+    public static String encode(byte[] data) {
+        return BaseEncoding.base32().omitPadding().encode(data);
     }
 }

app/src/main/java/com/beemdevelopment/aegis/encoding/Base32Exception.java

@@ -1,7 +0,0 @@
-package com.beemdevelopment.aegis.encoding;
-
-public class Base32Exception extends Exception {
-    public Base32Exception(String message) {
-        super(message);
-    }
-}

app/src/main/java/com/beemdevelopment/aegis/encoding/Base64.java

@@ -1,29 +1,27 @@
 package com.beemdevelopment.aegis.encoding;
 
-import java.io.UnsupportedEncodingException;
+import com.google.common.io.BaseEncoding;
+
+import java.nio.charset.StandardCharsets;
 
 public class Base64 {
-    private static final int _flags = android.util.Base64.NO_WRAP;
-
     private Base64() {
 
     }
 
-    public static byte[] decode(String s) throws Base64Exception {
+    public static byte[] decode(String s) throws EncodingException {
         try {
-            return android.util.Base64.decode(s, _flags);
+            return BaseEncoding.base64().decode(s);
         } catch (IllegalArgumentException e) {
-            throw new Base64Exception(e);
+            throw new EncodingException(e);
         }
     }
 
+    public static byte[] decode(byte[] s) throws EncodingException {
+        return decode(new String(s, StandardCharsets.UTF_8));
+    }
+
     public static String encode(byte[] data) {
-        byte[] encoded = android.util.Base64.encode(data, _flags);
-
-        try {
-            return new String(encoded, "UTF-8");
-        } catch (UnsupportedEncodingException e) {
-            throw new RuntimeException(e);
-        }
+        return BaseEncoding.base64().encode(data);
     }
 }

app/src/main/java/com/beemdevelopment/aegis/encoding/Base64Exception.java

@@ -1,7 +0,0 @@
-package com.beemdevelopment.aegis.encoding;
-
-public class Base64Exception extends Exception {
-    public Base64Exception(Throwable cause) {
-        super(cause);
-    }
-}

app/src/main/java/com/beemdevelopment/aegis/encoding/EncodingException.java

@@ -0,0 +1,9 @@
+package com.beemdevelopment.aegis.encoding;
+
+import java.io.IOException;
+
+public class EncodingException extends IOException {
+    public EncodingException(Throwable cause) {
+        super(cause);
+    }
+}

app/src/main/java/com/beemdevelopment/aegis/encoding/Hex.java

@@ -1,46 +1,21 @@
 package com.beemdevelopment.aegis.encoding;
 
-// The hexadecimal utility functions in this file were taken and modified from: http://www.docjar.com/html/api/com/sun/xml/internal/bind/DatatypeConverterImpl.java.html
-// It is licensed under GPLv2 with a classpath exception.
+import com.google.common.io.BaseEncoding;
+
 public class Hex {
     private Hex() {
+
     }
 
-    private static int hexToBin(char ch) {
-        if ('0' <= ch && ch <= '9') return ch - '0';
-        if ('A' <= ch && ch <= 'F') return ch - 'A' + 10;
-        if ('a' <= ch && ch <= 'f') return ch - 'a' + 10;
-        return -1;
-    }
-
-    private static final char[] hexCode = "0123456789abcdef".toCharArray();
-
-    public static byte[] decode(String s) throws HexException {
-        final int len = s.length();
-
-        if (len % 2 != 0)
-            throw new HexException("hexBinary needs to be even-length: " + s);
-
-        byte[] out = new byte[len / 2];
-
-        for (int i = 0; i < len; i += 2) {
-            int h = hexToBin(s.charAt(i));
-            int l = hexToBin(s.charAt(i + 1));
-            if (h == -1 || l == -1)
-                throw new HexException("contains illegal character for hexBinary: " + s);
-
-            out[i / 2] = (byte) (h * 16 + l);
+    public static byte[] decode(String s) throws EncodingException {
+        try {
+            return BaseEncoding.base16().decode(s.toUpperCase());
+        } catch (IllegalArgumentException e) {
+            throw new EncodingException(e);
         }
-
-        return out;
     }
 
     public static String encode(byte[] data) {
-        StringBuilder r = new StringBuilder(data.length * 2);
-        for (byte b : data) {
-            r.append(hexCode[(b >> 4) & 0xF]);
-            r.append(hexCode[(b & 0xF)]);
-        }
-        return r.toString();
+        return BaseEncoding.base16().lowerCase().encode(data);
     }
 }

app/src/main/java/com/beemdevelopment/aegis/encoding/HexException.java

@@ -1,7 +0,0 @@
-package com.beemdevelopment.aegis.encoding;
-
-public class HexException extends Exception {
-    public HexException(String message) {
-        super(message);
-    }
-}

app/src/main/java/com/beemdevelopment/aegis/helpers/BiometricSlotInitializer.java

@@ -0,0 +1,136 @@
+package com.beemdevelopment.aegis.helpers;
+
+import androidx.annotation.NonNull;
+import androidx.biometric.BiometricPrompt;
+import androidx.fragment.app.Fragment;
+import androidx.fragment.app.FragmentActivity;
+
+import com.beemdevelopment.aegis.crypto.KeyStoreHandle;
+import com.beemdevelopment.aegis.crypto.KeyStoreHandleException;
+import com.beemdevelopment.aegis.vault.slots.BiometricSlot;
+import com.beemdevelopment.aegis.vault.slots.Slot;
+import com.beemdevelopment.aegis.vault.slots.SlotException;
+
+import java.util.Objects;
+
+import javax.crypto.Cipher;
+import javax.crypto.SecretKey;
+
+/**
+ * A class that can prepare initialization of a BiometricSlot by generating a new
+ * key in the Android KeyStore and authenticating a cipher for it through a
+ * BiometricPrompt.
+ */
+public class BiometricSlotInitializer extends BiometricPrompt.AuthenticationCallback {
+    private BiometricSlot _slot;
+    private Listener _listener;
+    private BiometricPrompt _prompt;
+
+    public BiometricSlotInitializer(Fragment fragment, Listener listener) {
+        _listener = listener;
+        _prompt = new BiometricPrompt(fragment, new UiThreadExecutor(), this);
+    }
+
+    public BiometricSlotInitializer(FragmentActivity activity, Listener listener) {
+        _listener = listener;
+        _prompt = new BiometricPrompt(activity, new UiThreadExecutor(), this);
+    }
+
+    /**
+     * Generates a new key in the Android KeyStore for the new BiometricSlot,
+     * initializes a cipher with it and shows a BiometricPrompt to the user for
+     * authentication. If authentication is successful, the new slot will be
+     * initialized and delivered back through the listener.
+     */
+    public void authenticate(BiometricPrompt.PromptInfo info) {
+        if (_slot != null) {
+            throw new IllegalStateException("Biometric authentication already in progress");
+        }
+
+        KeyStoreHandle keyStore;
+        try {
+            keyStore = new KeyStoreHandle();
+        } catch (KeyStoreHandleException e) {
+            fail(e);
+            return;
+        }
+
+        // generate a new Android KeyStore key
+        // and assign it the UUID of the new slot as an alias
+        Cipher cipher;
+        BiometricSlot slot = new BiometricSlot();
+        try {
+            SecretKey key = keyStore.generateKey(slot.getUUID().toString());
+            cipher = Slot.createEncryptCipher(key);
+        } catch (KeyStoreHandleException | SlotException e) {
+            fail(e);
+            return;
+        }
+
+        _slot = slot;
+        _prompt.authenticate(info, new BiometricPrompt.CryptoObject(cipher));
+    }
+
+    /**
+     * Cancels the BiometricPrompt and resets the state of the initializer. It will
+     * also attempt to delete the previously generated Android KeyStore key.
+     */
+    public void cancelAuthentication() {
+        if (_slot == null) {
+            throw new IllegalStateException("Biometric authentication not in progress");
+        }
+
+        reset();
+        _prompt.cancelAuthentication();
+    }
+
+    private void reset() {
+        if (_slot != null) {
+            try {
+                // clean up the unused KeyStore key
+                // this is non-critical, so just fail silently if an error occurs
+                String uuid = _slot.getUUID().toString();
+                KeyStoreHandle keyStore = new KeyStoreHandle();
+                if (keyStore.containsKey(uuid)) {
+                    keyStore.deleteKey(uuid);
+                }
+            } catch (KeyStoreHandleException e) {
+                e.printStackTrace();
+            }
+
+            _slot = null;
+        }
+    }
+
+    private void fail(int errorCode, CharSequence errString) {
+        reset();
+        _listener.onSlotInitializationFailed(errorCode, errString);
+    }
+
+    private void fail(Exception e) {
+        e.printStackTrace();
+        fail(0, e.toString());
+    }
+
+    @Override
+    public void onAuthenticationError(int errorCode, @NonNull CharSequence errString) {
+        super.onAuthenticationError(errorCode, errString);
+        fail(errorCode, errString.toString());
+    }
+
+    @Override
+    public void onAuthenticationSucceeded(@NonNull BiometricPrompt.AuthenticationResult result) {
+        super.onAuthenticationSucceeded(result);
+        _listener.onInitializeSlot(_slot, Objects.requireNonNull(result.getCryptoObject()).getCipher());
+    }
+
+    @Override
+    public void onAuthenticationFailed() {
+        super.onAuthenticationFailed();
+    }
+
+    public interface Listener {
+        void onInitializeSlot(BiometricSlot slot, Cipher cipher);
+        void onSlotInitializationFailed(int errorCode, @NonNull CharSequence errString);
+    }
+}

app/src/main/java/com/beemdevelopment/aegis/helpers/BiometricsHelper.java

@@ -0,0 +1,30 @@
+package com.beemdevelopment.aegis.helpers;
+
+import android.content.Context;
+
+import androidx.biometric.BiometricConstants;
+import androidx.biometric.BiometricManager;
+
+public class BiometricsHelper {
+    private BiometricsHelper() {
+
+    }
+
+    public static BiometricManager getManager(Context context) {
+        BiometricManager manager = BiometricManager.from(context);
+        if (manager.canAuthenticate() == BiometricManager.BIOMETRIC_SUCCESS) {
+            return manager;
+        }
+        return null;
+    }
+
+    public static boolean isCanceled(int errorCode) {
+        return errorCode == BiometricConstants.ERROR_CANCELED
+                || errorCode == BiometricConstants.ERROR_USER_CANCELED
+                || errorCode == BiometricConstants.ERROR_NEGATIVE_BUTTON;
+    }
+
+    public static boolean isAvailable(Context context) {
+        return getManager(context) != null;
+    }
+}

app/src/main/java/com/beemdevelopment/aegis/helpers/BitmapHelper.java

@@ -0,0 +1,31 @@
+package com.beemdevelopment.aegis.helpers;
+
+import android.graphics.Bitmap;
+
+public class BitmapHelper {
+    private BitmapHelper() {
+
+    }
+
+    /**
+     * Scales the given Bitmap to the given maximum width/height, while keeping the aspect ratio intact.
+     */
+    public static Bitmap resize(Bitmap bitmap, int maxWidth, int maxHeight) {
+        if (maxHeight <= 0 || maxWidth <= 0) {
+            return bitmap;
+        }
+
+        float maxRatio = (float) maxWidth / maxHeight;
+        float ratio = (float) bitmap.getWidth() / bitmap.getHeight();
+
+        int width = maxWidth;
+        int height = maxHeight;
+        if (maxRatio > 1) {
+            width = (int) ((float) maxHeight * ratio);
+        } else {
+            height = (int) ((float) maxWidth / ratio);
+        }
+
+        return Bitmap.createScaledBitmap(bitmap, width, height, true);
+    }
+}

app/src/main/java/com/beemdevelopment/aegis/helpers/ContextHelper.java

@@ -0,0 +1,39 @@
+package com.beemdevelopment.aegis.helpers;
+
+import android.content.Context;
+import android.content.ContextWrapper;
+
+import androidx.activity.ComponentActivity;
+import androidx.annotation.NonNull;
+import androidx.lifecycle.Lifecycle;
+
+import javax.annotation.Nullable;
+
+/**
+ * ContextHelper contains some disgusting hacks to obtain the Activity/Lifecycle from a Context.
+ */
+public class ContextHelper {
+    private ContextHelper() {
+
+    }
+
+    // source: https://github.com/androidx/androidx/blob/e32e1da51a0c7448c74861c667fa76738a415a89/mediarouter/mediarouter/src/main/java/androidx/mediarouter/app/MediaRouteButton.java#L425-L435
+    @Nullable
+    public static ComponentActivity getActivity(@NonNull Context context) {
+        while (context instanceof ContextWrapper) {
+            if (context instanceof ComponentActivity) {
+                return (ComponentActivity) context;
+            }
+
+            context = ((ContextWrapper) context).getBaseContext();
+        }
+
+        return null;
+    }
+
+    @Nullable
+    public static Lifecycle getLifecycle(@NonNull Context context) {
+        ComponentActivity activity = getActivity(context);
+        return activity == null ? null : activity.getLifecycle();
+    }
+}

app/src/main/java/com/beemdevelopment/aegis/helpers/EditTextHelper.java

@@ -9,10 +9,6 @@ public class EditTextHelper {
     private EditTextHelper() {
     }
 
-    public static void clearEditText(EditText text) {
-        text.getText().clear();
-    }
-
     public static char[] getEditTextChars(EditText text) {
         Editable editable = text.getText();
         char[] chars = new char[editable.length()];

app/src/main/java/com/beemdevelopment/aegis/helpers/FabScrollHelper.java

@@ -0,0 +1,58 @@
+package com.beemdevelopment.aegis.helpers;
+
+import android.animation.Animator;
+import android.animation.AnimatorListenerAdapter;
+import android.view.View;
+import android.view.animation.AccelerateInterpolator;
+import android.view.animation.DecelerateInterpolator;
+import androidx.coordinatorlayout.widget.CoordinatorLayout;
+import com.getbase.floatingactionbutton.FloatingActionsMenu;
+
+public class FabScrollHelper {
+    private View _fabMenu;
+    private boolean _isAnimating;
+
+    public FabScrollHelper(View floatingActionsMenu) {
+        _fabMenu = floatingActionsMenu;
+    }
+
+    public void onScroll(int dx, int dy) {
+        if (dy > 0 && _fabMenu.getVisibility() == View.VISIBLE && !_isAnimating) {
+            setVisible(false);
+        } else if (dy < 0 && _fabMenu.getVisibility() != View.VISIBLE && !_isAnimating) {
+            setVisible(true);
+        }
+    }
+
+    public void setVisible(boolean visible) {
+        if (visible) {
+            _fabMenu.setVisibility(View.VISIBLE);
+            _fabMenu.animate()
+                    .translationY(0)
+                    .setInterpolator(new DecelerateInterpolator(2))
+                    .setListener(new AnimatorListenerAdapter() {
+                        @Override
+                        public void onAnimationEnd(Animator animation) {
+                            _isAnimating = false;
+                            super.onAnimationEnd(animation);
+                        }
+                    }).start();
+        } else {
+            _isAnimating = true;
+            CoordinatorLayout.LayoutParams lp = (CoordinatorLayout.LayoutParams) _fabMenu.getLayoutParams();
+            int fabBottomMargin = lp.bottomMargin;
+            _fabMenu.animate()
+                    .translationY(_fabMenu.getHeight() + fabBottomMargin)
+                    .setInterpolator(new AccelerateInterpolator(2))
+                    .setListener(new AnimatorListenerAdapter() {
+                        @Override
+                        public void onAnimationEnd(Animator animation) {
+                            _isAnimating = false;
+                            _fabMenu.setVisibility(View.INVISIBLE);
+                            super.onAnimationEnd(animation);
+                        }
+                    }).start();
+        }
+
+    }
+}

app/src/main/java/com/beemdevelopment/aegis/helpers/FingerprintHelper.java

@@ -1,26 +0,0 @@
-package com.beemdevelopment.aegis.helpers;
-
-import android.Manifest;
-import android.content.Context;
-import android.hardware.fingerprint.FingerprintManager;
-import android.os.Build;
-
-public class FingerprintHelper {
-    private FingerprintHelper() {
-
-    }
-
-    public static FingerprintManager getManager(Context context) {
-        if (isSupported() && PermissionHelper.granted(context, Manifest.permission.USE_FINGERPRINT)) {
-            FingerprintManager manager = (FingerprintManager) context.getSystemService(Context.FINGERPRINT_SERVICE);
-            if (manager != null && manager.isHardwareDetected() && manager.hasEnrolledFingerprints()) {
-                return manager;
-            }
-        }
-        return null;
-    }
-
-    public static boolean isSupported() {
-        return Build.VERSION.SDK_INT >= Build.VERSION_CODES.M;
-    }
-}

app/src/main/java/com/beemdevelopment/aegis/helpers/FingerprintUiHelper.java

@@ -1,156 +0,0 @@
-// This file was originally taken from https://github.com/googlesamples/android-FingerprintDialog/blob/2feb02945ae220ebd1bc2c2b620a1d43e30daea8/Application/src/main/java/com/example/android/fingerprintdialog/FingerprintUiHelper.java
-// It has been modified to suit Aegis' needs
-
-/*
- * Copyright (C) 2015 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License
- */
-
-package com.beemdevelopment.aegis.helpers;
-
-import android.hardware.fingerprint.FingerprintManager;
-import android.os.Build;
-import android.os.CancellationSignal;
-import androidx.annotation.RequiresApi;
-import android.widget.TextView;
-
-import com.mattprecious.swirl.SwirlView;
-
-import com.beemdevelopment.aegis.R;
-
-/**
- * Small helper class to manage text/icon around fingerprint authentication UI.
- */
-@RequiresApi(api = Build.VERSION_CODES.M)
-public class FingerprintUiHelper extends FingerprintManager.AuthenticationCallback {
-
-    private static final long ERROR_TIMEOUT_MILLIS = 1600;
-    private static final long SUCCESS_DELAY_MILLIS = 100;
-
-    private final FingerprintManager mFingerprintManager;
-    private final SwirlView mIcon;
-    private final TextView mErrorTextView;
-    private final Callback mCallback;
-    private CancellationSignal mCancellationSignal;
-
-    private boolean mSelfCancelled;
-
-    /**
-     * Constructor for {@link FingerprintUiHelper}.
-     */
-    public FingerprintUiHelper(FingerprintManager fingerprintManager,
-                               SwirlView icon, TextView errorTextView, Callback callback) {
-        mFingerprintManager = fingerprintManager;
-        mIcon = icon;
-        mErrorTextView = errorTextView;
-        mCallback = callback;
-    }
-
-    public boolean isFingerprintAuthAvailable() {
-        // The line below prevents the false positive inspection from Android Studio
-        // noinspection ResourceType
-        return mFingerprintManager.isHardwareDetected()
-                && mFingerprintManager.hasEnrolledFingerprints();
-    }
-
-    public void startListening(FingerprintManager.CryptoObject cryptoObject) {
-        if (!isFingerprintAuthAvailable()) {
-            return;
-        }
-        mCancellationSignal = new CancellationSignal();
-        mSelfCancelled = false;
-        // The line below prevents the false positive inspection from Android Studio
-        // noinspection ResourceType
-        mFingerprintManager
-                .authenticate(cryptoObject, mCancellationSignal, 0 /* flags */, this, null);
-        mIcon.setState(SwirlView.State.ON);
-    }
-
-    public void stopListening() {
-        if (mCancellationSignal != null) {
-            mSelfCancelled = true;
-            mCancellationSignal.cancel();
-            mCancellationSignal = null;
-        }
-    }
-
-    @Override
-    public void onAuthenticationError(int errMsgId, CharSequence errString) {
-        if (!mSelfCancelled) {
-            showError(errString);
-            mIcon.postDelayed(new Runnable() {
-                @Override
-                public void run() {
-                    mCallback.onError();
-                }
-            }, ERROR_TIMEOUT_MILLIS);
-        }
-    }
-
-    @Override
-    public void onAuthenticationHelp(int helpMsgId, CharSequence helpString) {
-        showError(helpString);
-    }
-
-    @Override
-    public void onAuthenticationFailed() {
-        showError(mIcon.getResources().getString(
-                R.string.fingerprint_not_recognized));
-    }
-
-    @Override
-    public void onAuthenticationSucceeded(FingerprintManager.AuthenticationResult result) {
-        mErrorTextView.removeCallbacks(mResetErrorTextRunnable);
-        mIcon.setState(SwirlView.State.OFF);
-        mErrorTextView.setText(
-                mErrorTextView.getResources().getString(R.string.fingerprint_success));
-        mIcon.postDelayed(new Runnable() {
-            @Override
-            public void run() {
-                mCallback.onAuthenticated();
-            }
-        }, SUCCESS_DELAY_MILLIS);
-
-        // ugly hack to keep the fingerprint icon visible while also giving visual feedback of success to the user
-        mIcon.postDelayed(new Runnable() {
-            @Override
-            public void run() {
-                mIcon.setState(SwirlView.State.ON);
-            }
-        }, 500);
-    }
-
-    private void showError(CharSequence error) {
-        mIcon.setState(SwirlView.State.ERROR);
-        mErrorTextView.setText(error);
-        mErrorTextView.removeCallbacks(mResetErrorTextRunnable);
-        mErrorTextView.postDelayed(mResetErrorTextRunnable, ERROR_TIMEOUT_MILLIS);
-    }
-
-    private Runnable mResetErrorTextRunnable = new Runnable() {
-        @Override
-        public void run() {
-            mErrorTextView.setText(
-                    mErrorTextView.getResources().getString(R.string.fingerprint_hint));
-            mIcon.setState(SwirlView.State.ON);
-        }
-    };
-
-    public interface Callback {
-
-        void onAuthenticated();
-
-        void onError();
-    }
-}

app/src/main/java/com/beemdevelopment/aegis/helpers/PasswordStrengthHelper.java

@@ -0,0 +1,27 @@
+package com.beemdevelopment.aegis.helpers;
+
+import android.content.Context;
+
+import com.beemdevelopment.aegis.R;
+
+public class PasswordStrengthHelper {
+    // Material design color palette
+    private static String[] COLORS = {"#FF5252", "#FF5252", "#FFC107", "#8BC34A", "#4CAF50"};
+
+    public static String getString(int score, Context context) {
+        if (score < 0 || score > 4) {
+            throw new IllegalArgumentException("Not a valid zxcvbn score");
+        }
+
+        String[] strings = context.getResources().getStringArray(R.array.password_strength);
+        return strings[score];
+    }
+
+    public static String getColor(int score) {
+        if (score < 0 || score > 4) {
+            throw new IllegalArgumentException("Not a valid zxcvbn score");
+        }
+
+        return COLORS[score];
+    }
+}

app/src/main/java/com/beemdevelopment/aegis/helpers/PermissionHelper.java

@@ -3,12 +3,13 @@ package com.beemdevelopment.aegis.helpers;
 import android.app.Activity;
 import android.content.Context;
 import android.content.pm.PackageManager;
-import androidx.core.app.ActivityCompat;
-import androidx.core.content.ContextCompat;
 
 import java.util.ArrayList;
 import java.util.List;
 
+import androidx.core.app.ActivityCompat;
+import androidx.core.content.ContextCompat;
+
 public class PermissionHelper {
     private PermissionHelper() {
 

app/src/main/java/com/beemdevelopment/aegis/helpers/QrCodeAnalyzer.java

@@ -0,0 +1,68 @@
+package com.beemdevelopment.aegis.helpers;
+
+import android.util.Log;
+
+import androidx.annotation.NonNull;
+import androidx.camera.core.ImageAnalysis;
+import androidx.camera.core.ImageProxy;
+
+import com.google.zxing.BinaryBitmap;
+import com.google.zxing.ChecksumException;
+import com.google.zxing.FormatException;
+import com.google.zxing.NotFoundException;
+import com.google.zxing.PlanarYUVLuminanceSource;
+import com.google.zxing.Result;
+import com.google.zxing.common.HybridBinarizer;
+import com.google.zxing.qrcode.QRCodeReader;
+
+import java.nio.ByteBuffer;
+
+import static android.graphics.ImageFormat.YUV_420_888;
+import static android.graphics.ImageFormat.YUV_422_888;
+import static android.graphics.ImageFormat.YUV_444_888;
+
+public class QrCodeAnalyzer implements ImageAnalysis.Analyzer {
+    private static final String TAG = QrCodeAnalyzer.class.getSimpleName();
+
+    private final QrCodeAnalyzer.Listener _listener;
+
+    public QrCodeAnalyzer(QrCodeAnalyzer.Listener listener) {
+        _listener = listener;
+    }
+
+    @Override
+    public void analyze(@NonNull ImageProxy image) {
+        int format = image.getFormat();
+        if (format != YUV_420_888 && format != YUV_422_888 && format != YUV_444_888) {
+            Log.e(TAG, String.format("Expected YUV format, got %d instead", format));
+            image.close();
+            return;
+        }
+
+        ByteBuffer buf = image.getPlanes()[0].getBuffer();
+        byte[] data = new byte[buf.remaining()];
+        buf.get(data);
+        buf.rewind();
+
+        PlanarYUVLuminanceSource source = new PlanarYUVLuminanceSource(
+                data, image.getWidth(), image.getHeight(), 0, 0, image.getWidth(), image.getHeight(), false
+        );
+
+        QRCodeReader reader = new QRCodeReader();
+        BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
+        try {
+            Result result = reader.decode(bitmap);
+            if (_listener != null) {
+                _listener.onQrCodeDetected(result);
+            }
+        } catch (ChecksumException | FormatException | NotFoundException ignored) {
+
+        } finally {
+            image.close();
+        }
+    }
+
+    public interface Listener {
+        void onQrCodeDetected(Result result);
+    }
+}

app/src/main/java/com/beemdevelopment/aegis/helpers/SimpleItemTouchHelperCallback.java

@@ -1,10 +1,15 @@
 package com.beemdevelopment.aegis.helpers;
 
-import androidx.recyclerview.widget.RecyclerView;
 import androidx.recyclerview.widget.ItemTouchHelper;
+import androidx.recyclerview.widget.RecyclerView;
+
+import com.beemdevelopment.aegis.vault.VaultEntry;
+import com.beemdevelopment.aegis.ui.views.EntryAdapter;
 
 public class SimpleItemTouchHelperCallback extends ItemTouchHelper.Callback {
 
+    private VaultEntry _selectedEntry;
+
     private final ItemTouchHelperAdapter _adapter;
     private boolean _positionChanged = false;
     private boolean _isLongPressDragEnabled = true;
@@ -22,6 +27,10 @@ public class SimpleItemTouchHelperCallback extends ItemTouchHelper.Callback {
         _isLongPressDragEnabled = enabled;
     }
 
+    public void setSelectedEntry(VaultEntry entry) {
+        _selectedEntry = entry;
+    }
+
     @Override
     public boolean isItemViewSwipeEnabled() {
         return false;
@@ -30,7 +39,15 @@ public class SimpleItemTouchHelperCallback extends ItemTouchHelper.Callback {
     @Override
     public int getMovementFlags(RecyclerView recyclerView, RecyclerView.ViewHolder viewHolder) {
         int dragFlags = ItemTouchHelper.UP | ItemTouchHelper.DOWN;
-        int swipeFlags = ItemTouchHelper.START | ItemTouchHelper.END;
+        int swipeFlags = 0;
+
+        int position = viewHolder.getAdapterPosition();
+        EntryAdapter adapter = (EntryAdapter)recyclerView.getAdapter();
+        if (adapter.getEntryAt(position) != _selectedEntry || !isLongPressDragEnabled())
+        {
+            dragFlags = 0;
+        }
+
         return makeMovementFlags(dragFlags, swipeFlags);
     }
 
@@ -56,4 +73,6 @@ public class SimpleItemTouchHelperCallback extends ItemTouchHelper.Callback {
             _positionChanged = false;
         }
     }
+
+
 }

app/src/main/java/com/beemdevelopment/aegis/helpers/SpinnerHelper.java

@@ -1,12 +1,13 @@
 package com.beemdevelopment.aegis.helpers;
 
 import android.content.Context;
-import androidx.annotation.ArrayRes;
 import android.widget.ArrayAdapter;
 import android.widget.Spinner;
 
 import java.util.List;
 
+import androidx.annotation.ArrayRes;
+
 public class SpinnerHelper {
     private SpinnerHelper() {
 

app/src/main/java/com/beemdevelopment/aegis/helpers/SquareFinderView.java

@@ -1,29 +0,0 @@
-package com.beemdevelopment.aegis.helpers;
-
-import android.content.Context;
-import android.graphics.Canvas;
-import android.util.AttributeSet;
-
-import me.dm7.barcodescanner.core.ViewFinderView;
-
-public class SquareFinderView extends ViewFinderView {
-
-    public SquareFinderView(Context context) {
-        super(context);
-        init();
-    }
-
-    public SquareFinderView(Context context, AttributeSet attrs) {
-        super(context, attrs);
-        init();
-    }
-
-    private void init() {
-        setSquareViewFinder(true);
-    }
-
-    @Override
-    public void onDraw(Canvas canvas) {
-        super.onDraw(canvas);
-    }
-}

app/src/main/java/com/beemdevelopment/aegis/helpers/ThemeHelper.java

@@ -0,0 +1,23 @@
+package com.beemdevelopment.aegis.helpers;
+
+import android.content.res.Resources;
+import android.graphics.Color;
+import android.util.TypedValue;
+
+import androidx.annotation.ColorInt;
+
+import com.beemdevelopment.aegis.R;
+
+public class ThemeHelper {
+    private ThemeHelper() {
+
+    }
+
+    public static int getThemeColor(int attributeId, Resources.Theme currentTheme) {
+        TypedValue typedValue = new TypedValue();
+        currentTheme.resolveAttribute(attributeId, typedValue, true);
+        @ColorInt int color = typedValue.data;
+
+        return color;
+    }
+}

app/src/main/java/com/beemdevelopment/aegis/helpers/UiRefresher.java

@@ -12,6 +12,11 @@ public class UiRefresher {
         _handler = new Handler();
     }
 
+    public void destroy() {
+        stop();
+        _listener = null;
+    }
+
     public void start() {
         if (_running) {
             return;
@@ -22,15 +27,14 @@ public class UiRefresher {
         _handler.postDelayed(new Runnable() {
             @Override
             public void run() {
-                if (_running) {
-                    _listener.onRefresh();
-                    _handler.postDelayed(this, _listener.getMillisTillNextRefresh());
-                }
+                _listener.onRefresh();
+                _handler.postDelayed(this, _listener.getMillisTillNextRefresh());
             }
         }, _listener.getMillisTillNextRefresh());
     }
 
     public void stop() {
+        _handler.removeCallbacksAndMessages(null);
         _running = false;
     }
 

app/src/main/java/com/beemdevelopment/aegis/helpers/UiThreadExecutor.java

@@ -0,0 +1,17 @@
+package com.beemdevelopment.aegis.helpers;
+
+import android.os.Handler;
+import android.os.Looper;
+
+import androidx.annotation.NonNull;
+
+import java.util.concurrent.Executor;
+
+public class UiThreadExecutor implements Executor {
+    private final Handler _handler = new Handler(Looper.getMainLooper());
+
+    @Override
+    public void execute(@NonNull Runnable command) {
+        _handler.post(command);
+    }
+}

app/src/main/java/com/beemdevelopment/aegis/helpers/comparators/AccountNameComparator.java

@@ -0,0 +1,12 @@
+package com.beemdevelopment.aegis.helpers.comparators;
+
+import com.beemdevelopment.aegis.vault.VaultEntry;
+
+import java.util.Comparator;
+
+public class AccountNameComparator implements Comparator<VaultEntry> {
+    @Override
+    public int compare(VaultEntry a, VaultEntry b) {
+        return a.getName().compareToIgnoreCase(b.getName());
+    }
+}

app/src/main/java/com/beemdevelopment/aegis/helpers/comparators/IssuerNameComparator.java

@@ -0,0 +1,12 @@
+package com.beemdevelopment.aegis.helpers.comparators;
+
+import com.beemdevelopment.aegis.vault.VaultEntry;
+
+import java.util.Comparator;
+
+public class IssuerNameComparator implements Comparator<VaultEntry> {
+    @Override
+    public int compare(VaultEntry a, VaultEntry b) {
+        return a.getIssuer().compareToIgnoreCase(b.getIssuer());
+    }
+}

app/src/main/java/com/beemdevelopment/aegis/importers/AegisFileImporter.java

@@ -1,64 +0,0 @@
-package com.beemdevelopment.aegis.importers;
-
-import android.content.Context;
-
-import org.json.JSONObject;
-
-import java.util.List;
-
-import com.beemdevelopment.aegis.db.Database;
-import com.beemdevelopment.aegis.db.DatabaseEntry;
-import com.beemdevelopment.aegis.db.DatabaseException;
-import com.beemdevelopment.aegis.db.DatabaseFile;
-import com.beemdevelopment.aegis.db.DatabaseFileCredentials;
-import com.beemdevelopment.aegis.db.DatabaseFileException;
-import com.beemdevelopment.aegis.util.ByteInputStream;
-
-public class AegisFileImporter extends DatabaseFileImporter {
-    private DatabaseFileCredentials _creds;
-    private DatabaseFile _file;
-
-    public AegisFileImporter(Context context, ByteInputStream stream) {
-        super(context, stream);
-    }
-
-    @Override
-    public void parse() throws DatabaseImporterException {
-        try {
-            byte[] bytes = _stream.getBytes();
-            _file = DatabaseFile.fromBytes(bytes);
-        } catch (DatabaseFileException e) {
-            throw new DatabaseImporterException(e);
-        }
-    }
-
-    @Override
-    public List<DatabaseEntry> convert() throws DatabaseImporterException {
-        try {
-            JSONObject obj;
-            if (_file.isEncrypted() && _creds != null) {
-                obj = _file.getContent(_creds);
-            } else {
-                obj = _file.getContent();
-            }
-
-            Database db = Database.fromJson(obj);
-            return db.getEntries();
-        } catch (DatabaseException | DatabaseFileException e) {
-            throw new DatabaseImporterException(e);
-        }
-    }
-
-    @Override
-    public boolean isEncrypted() {
-        return _file.isEncrypted();
-    }
-
-    public void setCredentials(DatabaseFileCredentials creds) {
-        _creds = creds;
-    }
-
-    public DatabaseFile getFile() {
-        return _file;
-    }
-}

app/src/main/java/com/beemdevelopment/aegis/importers/AegisImporter.java

@@ -0,0 +1,108 @@
+package com.beemdevelopment.aegis.importers;
+
+import android.content.Context;
+
+import com.beemdevelopment.aegis.encoding.EncodingException;
+import com.beemdevelopment.aegis.otp.OtpInfoException;
+import com.beemdevelopment.aegis.util.IOUtils;
+import com.beemdevelopment.aegis.vault.VaultEntry;
+import com.beemdevelopment.aegis.vault.VaultFile;
+import com.beemdevelopment.aegis.vault.VaultFileCredentials;
+import com.beemdevelopment.aegis.vault.VaultFileException;
+import com.beemdevelopment.aegis.vault.slots.SlotList;
+import com.topjohnwu.superuser.io.SuFile;
+
+import org.json.JSONArray;
+import org.json.JSONException;
+import org.json.JSONObject;
+
+import java.io.IOException;
+import java.io.InputStream;
+
+public class AegisImporter extends DatabaseImporter {
+
+    public AegisImporter(Context context) {
+        super(context);
+    }
+
+    @Override
+    protected SuFile getAppPath() {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public State read(InputStream stream, boolean isInternal) throws DatabaseImporterException {
+        try {
+            byte[] bytes = IOUtils.readAll(stream);
+            VaultFile file = VaultFile.fromBytes(bytes);
+            if (file.isEncrypted()) {
+                return new EncryptedState(file);
+            }
+            return new DecryptedState(file.getContent());
+        } catch (VaultFileException | IOException e) {
+            throw new DatabaseImporterException(e);
+        }
+    }
+
+    public static class EncryptedState extends State {
+        private VaultFile _file;
+
+        private EncryptedState(VaultFile file) {
+            super(true);
+            _file = file;
+        }
+
+        public SlotList getSlots() {
+            return _file.getHeader().getSlots();
+        }
+
+        public State decrypt(VaultFileCredentials creds) throws VaultFileException {
+            JSONObject obj = _file.getContent(creds);
+            return new DecryptedState(obj);
+        }
+
+        @Override
+        public void decrypt(Context context, DecryptListener listener) {
+
+        }
+    }
+
+    public static class DecryptedState extends State {
+        private JSONObject _obj;
+
+        private DecryptedState(JSONObject obj) {
+            super(false);
+            _obj = obj;
+        }
+
+        @Override
+        public Result convert() throws DatabaseImporterException {
+            Result result = new Result();
+
+            try {
+                JSONArray array = _obj.getJSONArray("entries");
+                for (int i = 0; i < array.length(); i++) {
+                    JSONObject entryObj = array.getJSONObject(i);
+                    try {
+                        VaultEntry entry = convertEntry(entryObj);
+                        result.addEntry(entry);
+                    } catch (DatabaseImporterEntryException e) {
+                        result.addError(e);
+                    }
+                }
+            } catch (JSONException e) {
+                throw new DatabaseImporterException(e);
+            }
+
+            return result;
+        }
+
+        private static VaultEntry convertEntry(JSONObject obj) throws DatabaseImporterEntryException {
+            try {
+                return VaultEntry.fromJson(obj);
+            } catch (JSONException | OtpInfoException | EncodingException e) {
+                throw new DatabaseImporterEntryException(e, obj.toString());
+            }
+        }
+    }
+}

app/src/main/java/com/beemdevelopment/aegis/importers/AndOtpFileImporter.java

@@ -1,87 +0,0 @@
-package com.beemdevelopment.aegis.importers;
-
-import android.content.Context;
-
-import org.json.JSONArray;
-import org.json.JSONException;
-import org.json.JSONObject;
-
-import java.io.UnsupportedEncodingException;
-import java.util.ArrayList;
-import java.util.List;
-
-import com.beemdevelopment.aegis.db.DatabaseEntry;
-import com.beemdevelopment.aegis.encoding.Base32;
-import com.beemdevelopment.aegis.encoding.Base32Exception;
-import com.beemdevelopment.aegis.otp.HotpInfo;
-import com.beemdevelopment.aegis.otp.OtpInfo;
-import com.beemdevelopment.aegis.otp.OtpInfoException;
-import com.beemdevelopment.aegis.otp.TotpInfo;
-import com.beemdevelopment.aegis.util.ByteInputStream;
-
-public class AndOtpFileImporter extends DatabaseFileImporter {
-    private JSONArray _obj;
-
-    public AndOtpFileImporter(Context context, ByteInputStream stream) {
-        super(context, stream);
-    }
-
-    @Override
-    public void parse() throws DatabaseImporterException {
-        try {
-            _obj = new JSONArray(new String(_stream.getBytes(), "UTF-8"));
-        } catch (JSONException e) {
-            throw new DatabaseImporterException(e);
-        } catch (UnsupportedEncodingException e) {
-            throw new RuntimeException(e);
-        }
-    }
-
-    @Override
-    public List<DatabaseEntry> convert() throws DatabaseImporterException {
-        List<DatabaseEntry> entries = new ArrayList<>();
-
-        try {
-            for (int i = 0; i < _obj.length(); i++) {
-                JSONObject obj = _obj.getJSONObject(i);
-
-                String type = obj.getString("type").toLowerCase();
-                String algo = obj.getString("algorithm");
-                int digits = obj.getInt("digits");
-                byte[] secret = Base32.decode(obj.getString("secret").toCharArray());
-
-                OtpInfo info;
-                if (type.equals("totp")) {
-                    info = new TotpInfo(secret, algo, digits, obj.getInt("period"));
-                } else if (type.equals("hotp")) {
-                    info = new HotpInfo(secret, algo, digits, obj.getLong("counter"));
-                } else {
-                    throw new DatabaseImporterException("unsupported otp type: " + type);
-                }
-
-                String issuer = "";
-                String name = "";
-
-                String[] parts = obj.getString("label").split(" - ");
-                if (parts.length > 1) {
-                    issuer = parts[0];
-                    name = parts[1];
-                } else {
-                    name = parts[0];
-                }
-
-                DatabaseEntry entry = new DatabaseEntry(info, name, issuer);
-                entries.add(entry);
-            }
-        } catch (Base32Exception | OtpInfoException | JSONException e) {
-            throw new DatabaseImporterException(e);
-        }
-
-        return entries;
-    }
-
-    @Override
-    public boolean isEncrypted() {
-        return false;
-    }
-}

app/src/main/java/com/beemdevelopment/aegis/importers/AndOtpImporter.java

@@ -0,0 +1,313 @@
+package com.beemdevelopment.aegis.importers;
+
+import android.content.Context;
+
+import androidx.appcompat.app.AlertDialog;
+import androidx.lifecycle.Lifecycle;
+
+import com.beemdevelopment.aegis.R;
+import com.beemdevelopment.aegis.crypto.CryptParameters;
+import com.beemdevelopment.aegis.crypto.CryptResult;
+import com.beemdevelopment.aegis.crypto.CryptoUtils;
+import com.beemdevelopment.aegis.encoding.Base32;
+import com.beemdevelopment.aegis.encoding.EncodingException;
+import com.beemdevelopment.aegis.helpers.ContextHelper;
+import com.beemdevelopment.aegis.otp.HotpInfo;
+import com.beemdevelopment.aegis.otp.OtpInfo;
+import com.beemdevelopment.aegis.otp.OtpInfoException;
+import com.beemdevelopment.aegis.otp.SteamInfo;
+import com.beemdevelopment.aegis.otp.TotpInfo;
+import com.beemdevelopment.aegis.ui.Dialogs;
+import com.beemdevelopment.aegis.ui.tasks.ProgressDialogTask;
+import com.beemdevelopment.aegis.util.IOUtils;
+import com.beemdevelopment.aegis.vault.VaultEntry;
+import com.topjohnwu.superuser.io.SuFile;
+
+import org.json.JSONArray;
+import org.json.JSONException;
+import org.json.JSONObject;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.nio.ByteBuffer;
+import java.nio.charset.StandardCharsets;
+import java.security.InvalidAlgorithmParameterException;
+import java.security.InvalidKeyException;
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+import java.security.spec.InvalidKeySpecException;
+import java.security.spec.KeySpec;
+import java.util.Arrays;
+
+import javax.crypto.BadPaddingException;
+import javax.crypto.Cipher;
+import javax.crypto.IllegalBlockSizeException;
+import javax.crypto.NoSuchPaddingException;
+import javax.crypto.SecretKey;
+import javax.crypto.SecretKeyFactory;
+import javax.crypto.spec.PBEKeySpec;
+import javax.crypto.spec.SecretKeySpec;
+
+public class AndOtpImporter extends DatabaseImporter {
+    private static final int INT_SIZE = 4;
+    private static final int NONCE_SIZE = 12;
+    private static final int TAG_SIZE = 16;
+    private static final int SALT_SIZE = 12;
+    private static final int KEY_SIZE = 256; // bits
+
+    public AndOtpImporter(Context context) {
+        super(context);
+    }
+
+    @Override
+    protected SuFile getAppPath() {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public State read(InputStream stream, boolean isInternal) throws DatabaseImporterException {
+        byte[] bytes;
+        try {
+            bytes = IOUtils.readAll(stream);
+        } catch (IOException e) {
+            throw new DatabaseImporterException(e);
+        }
+
+        try {
+            return read(bytes);
+        } catch (JSONException e) {
+            // andOTP doesn't have a proper way to indicate whether a file is encrypted
+            // so, if we can't parse it as JSON, we'll have to assume it is
+            return new EncryptedState(bytes);
+        }
+    }
+
+    private static DecryptedState read(byte[] bytes) throws JSONException {
+        JSONArray array = new JSONArray(new String(bytes, StandardCharsets.UTF_8));
+        return new DecryptedState(array);
+    }
+
+    public static class EncryptedState extends DatabaseImporter.State {
+        private byte[] _data;
+
+        public EncryptedState(byte[] data) {
+            super(true);
+            _data = data;
+        }
+
+        private DecryptedState decryptData(SecretKey key, int offset) throws DatabaseImporterException {
+            byte[] nonce = Arrays.copyOfRange(_data, offset, offset + NONCE_SIZE);
+            byte[] tag = Arrays.copyOfRange(_data, _data.length - TAG_SIZE, _data.length);
+            CryptParameters params = new CryptParameters(nonce, tag);
+
+            try {
+                Cipher cipher = CryptoUtils.createDecryptCipher(key, nonce);
+                int len = _data.length - offset - NONCE_SIZE - TAG_SIZE;
+                CryptResult result = CryptoUtils.decrypt(_data, offset + NONCE_SIZE, len, cipher, params);
+                return read(result.getData());
+            } catch (IOException | BadPaddingException | JSONException e) {
+                throw new DatabaseImporterException(e);
+            } catch (NoSuchAlgorithmException
+                    | InvalidAlgorithmParameterException
+                    | InvalidKeyException
+                    | NoSuchPaddingException
+                    | IllegalBlockSizeException e) {
+                throw new RuntimeException(e);
+            }
+        }
+
+        private void decrypt(Context context, char[] password, boolean oldFormat, DecryptListener listener) throws DatabaseImporterException {
+            if (oldFormat) {
+                // WARNING: DON'T DO THIS IN YOUR OWN CODE
+                // this exists solely to support the old andOTP backup format
+                // it is not a secure way to derive a key from a password
+                MessageDigest hash;
+                try {
+                    hash = MessageDigest.getInstance("SHA-256");
+                } catch (NoSuchAlgorithmException e) {
+                    throw new RuntimeException(e);
+                }
+                byte[] keyBytes = hash.digest(CryptoUtils.toBytes(password));
+                SecretKey key = new SecretKeySpec(keyBytes, "AES");
+                DecryptedState state = decryptData(key, 0);
+                listener.onStateDecrypted(state);
+            } else {
+                int offset = INT_SIZE + SALT_SIZE;
+
+                byte[] iterBytes = Arrays.copyOfRange(_data, 0, INT_SIZE);
+                int iterations = ByteBuffer.wrap(iterBytes).getInt();
+                if (iterations < 1) {
+                    throw new DatabaseImporterException(String.format("Invalid number of iterations for PBKDF: %d", iterations));
+                }
+
+                byte[] salt = Arrays.copyOfRange(_data, INT_SIZE, offset);
+                AndOtpKeyDerivationTask.Params params = new AndOtpKeyDerivationTask.Params(password, salt, iterations);
+                AndOtpKeyDerivationTask task = new AndOtpKeyDerivationTask(context, key1 -> {
+                    try {
+                        DecryptedState state = decryptData(key1, offset);
+                        listener.onStateDecrypted(state);
+                    } catch (DatabaseImporterException e) {
+                        listener.onError(e);
+                    }
+                });
+                Lifecycle lifecycle = ContextHelper.getLifecycle(context);
+                task.execute(lifecycle, params);
+            }
+        }
+
+        @Override
+        public void decrypt(Context context, DecryptListener listener) {
+            String[] choices = new String[]{
+                    context.getResources().getString(R.string.andotp_new_format),
+                    context.getResources().getString(R.string.andotp_old_format)
+            };
+
+            Dialogs.showSecureDialog(new AlertDialog.Builder(context)
+                    .setTitle(R.string.choose_andotp_importer)
+                    .setSingleChoiceItems(choices, 0, null)
+                    .setPositiveButton(android.R.string.ok, (dialog, which) -> {
+                        int i = ((AlertDialog) dialog).getListView().getCheckedItemPosition();
+                        Dialogs.showPasswordInputDialog(context, password -> {
+                            try {
+                                decrypt(context, password, i != 0, listener);
+                            } catch (DatabaseImporterException e) {
+                                listener.onError(e);
+                            }
+                        });
+                    })
+                    .create());
+        }
+    }
+
+    public static class DecryptedState extends DatabaseImporter.State {
+        private JSONArray _obj;
+
+        private DecryptedState(JSONArray obj) {
+            super(false);
+            _obj = obj;
+        }
+
+        @Override
+        public Result convert() throws DatabaseImporterException {
+            Result result = new Result();
+
+            for (int i = 0; i < _obj.length(); i++) {
+                try {
+                    JSONObject obj = _obj.getJSONObject(i);
+                    VaultEntry entry = convertEntry(obj);
+                    result.addEntry(entry);
+                } catch (JSONException e) {
+                    throw new DatabaseImporterException(e);
+                } catch (DatabaseImporterEntryException e) {
+                    result.addError(e);
+                }
+            }
+
+            return result;
+        }
+
+        private static VaultEntry convertEntry(JSONObject obj) throws DatabaseImporterEntryException {
+            try {
+                String type = obj.getString("type").toLowerCase();
+                String algo = obj.getString("algorithm");
+                int digits = obj.getInt("digits");
+                byte[] secret = Base32.decode(obj.getString("secret"));
+
+                OtpInfo info;
+                switch (type) {
+                    case "hotp":
+                        info = new HotpInfo(secret, algo, digits, obj.getLong("counter"));
+                        break;
+                    case "totp":
+                        info = new TotpInfo(secret, algo, digits, obj.getInt("period"));
+                        break;
+                    case "steam":
+                        info = new SteamInfo(secret, algo, digits, obj.optInt("period", 30));
+                        break;
+                    default:
+                        throw new DatabaseImporterException("unsupported otp type: " + type);
+                }
+
+                String name;
+                String issuer = "";
+
+                if (obj.has("issuer")) {
+                    name = obj.getString("label");
+                    issuer = obj.getString("issuer");
+                } else {
+                    String[] parts = obj.getString("label").split(" - ");
+                    if (parts.length > 1) {
+                        issuer = parts[0];
+                        name = parts[1];
+                    } else {
+                        name = parts[0];
+                    }
+                }
+
+                return new VaultEntry(info, name, issuer);
+            } catch (DatabaseImporterException | EncodingException | OtpInfoException | JSONException e) {
+                throw new DatabaseImporterEntryException(e, obj.toString());
+            }
+        }
+    }
+
+    private static class AndOtpKeyDerivationTask extends ProgressDialogTask<AndOtpKeyDerivationTask.Params, SecretKey> {
+        private Callback _cb;
+
+        public AndOtpKeyDerivationTask(Context context, Callback cb) {
+            super(context, context.getString(R.string.unlocking_vault));
+            _cb = cb;
+        }
+
+        @Override
+        protected SecretKey doInBackground(AndOtpKeyDerivationTask.Params... args) {
+            setPriority();
+
+            AndOtpKeyDerivationTask.Params params = args[0];
+            SecretKey key;
+            try {
+                SecretKeyFactory factory = SecretKeyFactory.getInstance("PBKDF2WithHmacSHA1");
+                KeySpec spec = new PBEKeySpec(params.getPassword(), params.getSalt(), params.getIterations(), KEY_SIZE);
+                key = factory.generateSecret(spec);
+            } catch (NoSuchAlgorithmException | InvalidKeySpecException e) {
+                throw new RuntimeException(e);
+            }
+
+            return key;
+        }
+
+        @Override
+        protected void onPostExecute(SecretKey key) {
+            super.onPostExecute(key);
+            _cb.onTaskFinished(key);
+        }
+
+        public static class Params {
+            private char[] _password;
+            private byte[] _salt;
+            private int _iterations;
+
+            public Params(char[] password, byte[] salt, int iterations) {
+                _iterations = iterations;
+                _password = password;
+                _salt = salt;
+            }
+
+            public char[] getPassword() {
+                return _password;
+            }
+
+            public int getIterations() {
+                return _iterations;
+            }
+
+            public byte[] getSalt() {
+                return _salt;
+            }
+        }
+
+        public interface Callback {
+            void onTaskFinished(SecretKey key);
+        }
+    }
+}

app/src/main/java/com/beemdevelopment/aegis/importers/AuthenticatorPlusImporter.java

@@ -0,0 +1,70 @@
+package com.beemdevelopment.aegis.importers;
+
+import android.content.Context;
+
+import com.beemdevelopment.aegis.ui.Dialogs;
+import com.beemdevelopment.aegis.util.IOUtils;
+import com.topjohnwu.superuser.io.SuFile;
+
+import net.lingala.zip4j.io.inputstream.ZipInputStream;
+import net.lingala.zip4j.model.LocalFileHeader;
+
+import java.io.ByteArrayInputStream;
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.io.InputStream;
+
+public class AuthenticatorPlusImporter extends DatabaseImporter {
+    private static final String FILENAME = "Accounts.txt";
+
+    public AuthenticatorPlusImporter(Context context) {
+        super(context);
+    }
+
+    @Override
+    protected SuFile getAppPath() {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public State read(InputStream stream, boolean isInternal) throws DatabaseImporterException {
+        try {
+            return new EncryptedState(IOUtils.readAll(stream));
+        } catch (IOException e) {
+            throw new DatabaseImporterException(e);
+        }
+    }
+
+    public static class EncryptedState extends DatabaseImporter.State {
+        private byte[] _data;
+
+        private EncryptedState(byte[] data) {
+            super(true);
+            _data = data;
+        }
+
+        @Override
+        public void decrypt(Context context, DecryptListener listener) {
+            Dialogs.showPasswordInputDialog(context, password -> {
+                try (ByteArrayInputStream inStream = new ByteArrayInputStream(_data);
+                     ZipInputStream zipStream = new ZipInputStream(inStream, password)) {
+                    LocalFileHeader header;
+                    while ((header = zipStream.getNextEntry()) != null) {
+                        File file = new File(header.getFileName());
+                        if (file.getName().equals(FILENAME)) {
+                            GoogleAuthUriImporter importer = new GoogleAuthUriImporter(context);
+                            DatabaseImporter.State state = importer.read(zipStream);
+                            listener.onStateDecrypted(state);
+                            return;
+                        }
+                    }
+
+                    throw new FileNotFoundException(FILENAME);
+                } catch (IOException | DatabaseImporterException e) {
+                    listener.onError(e);
+                }
+            });
+        }
+    }
+}

app/src/main/java/com/beemdevelopment/aegis/importers/AuthyImporter.java

@@ -0,0 +1,287 @@
+package com.beemdevelopment.aegis.importers;
+
+import android.content.Context;
+import android.content.pm.PackageManager;
+import android.util.Xml;
+
+import com.beemdevelopment.aegis.R;
+import com.beemdevelopment.aegis.encoding.Base32;
+import com.beemdevelopment.aegis.encoding.Base64;
+import com.beemdevelopment.aegis.encoding.EncodingException;
+import com.beemdevelopment.aegis.encoding.Hex;
+import com.beemdevelopment.aegis.otp.OtpInfo;
+import com.beemdevelopment.aegis.otp.OtpInfoException;
+import com.beemdevelopment.aegis.otp.TotpInfo;
+import com.beemdevelopment.aegis.ui.Dialogs;
+import com.beemdevelopment.aegis.util.JsonUtils;
+import com.beemdevelopment.aegis.util.PreferenceParser;
+import com.beemdevelopment.aegis.vault.VaultEntry;
+import com.topjohnwu.superuser.io.SuFile;
+import com.topjohnwu.superuser.io.SuFileInputStream;
+
+import org.json.JSONArray;
+import org.json.JSONException;
+import org.json.JSONObject;
+import org.xmlpull.v1.XmlPullParser;
+import org.xmlpull.v1.XmlPullParserException;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.nio.charset.StandardCharsets;
+import java.security.InvalidAlgorithmParameterException;
+import java.security.InvalidKeyException;
+import java.security.NoSuchAlgorithmException;
+import java.security.spec.InvalidKeySpecException;
+import java.security.spec.KeySpec;
+
+import javax.crypto.BadPaddingException;
+import javax.crypto.Cipher;
+import javax.crypto.IllegalBlockSizeException;
+import javax.crypto.NoSuchPaddingException;
+import javax.crypto.SecretKey;
+import javax.crypto.SecretKeyFactory;
+import javax.crypto.spec.IvParameterSpec;
+import javax.crypto.spec.PBEKeySpec;
+
+public class AuthyImporter extends DatabaseImporter {
+    private static final String _subPath = "shared_prefs";
+    private static final String _pkgName = "com.authy.authy";
+    private static final String _authFilename = "com.authy.storage.tokens.authenticator";
+    private static final String _authyFilename = "com.authy.storage.tokens.authy";
+
+    private static final int ITERATIONS = 1000;
+    private static final int KEY_SIZE = 256;
+    private static final byte[] IV = new byte[]{
+            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+    };
+
+    public AuthyImporter(Context context) {
+        super(context);
+    }
+
+    @Override
+    protected SuFile getAppPath() throws PackageManager.NameNotFoundException {
+        return getAppPath(_pkgName, _subPath);
+    }
+
+    @Override
+    public State readFromApp() throws PackageManager.NameNotFoundException, DatabaseImporterException {
+        SuFile path = getAppPath();
+
+        JSONArray array;
+        JSONArray authyArray;
+        try {
+            array = readFile(new SuFile(path, String.format("%s.xml", _authFilename)), String.format("%s.key", _authFilename));
+            authyArray = readFile(new SuFile(path, String.format("%s.xml", _authyFilename)), String.format("%s.key", _authyFilename));
+        } catch (IOException | XmlPullParserException e) {
+            throw new DatabaseImporterException(e);
+        }
+
+        try {
+            for (int i = 0; i < authyArray.length(); i++) {
+                array.put(authyArray.getJSONObject(i));
+            }
+        } catch (JSONException e) {
+            throw new DatabaseImporterException(e);
+        }
+
+        return read(array);
+    }
+
+    @Override
+    public State read(InputStream stream, boolean isInternal) throws DatabaseImporterException {
+        try {
+            XmlPullParser parser = Xml.newPullParser();
+            parser.setFeature(XmlPullParser.FEATURE_PROCESS_NAMESPACES, false);
+            parser.setInput(stream, null);
+            parser.nextTag();
+
+            JSONArray array = new JSONArray();
+            for (PreferenceParser.XmlEntry entry : PreferenceParser.parse(parser)) {
+                if (entry.Name.equals(String.format("%s.key", _authFilename))
+                        || entry.Name.equals(String.format("%s.key", _authyFilename))) {
+                    array = new JSONArray(entry.Value);
+                    break;
+                }
+            }
+
+            return read(array);
+        } catch (XmlPullParserException | JSONException | IOException e) {
+            throw new DatabaseImporterException(e);
+        }
+    }
+
+    private State read(JSONArray array) throws DatabaseImporterException {
+        try {
+            for (int i = 0; i < array.length(); i++) {
+                JSONObject obj = array.getJSONObject(i);
+                if (!obj.has("decryptedSecret") && !obj.has("secretSeed")) {
+                    return new EncryptedState(array);
+                }
+            }
+        } catch (JSONException e) {
+            throw new DatabaseImporterException(e);
+        }
+
+        return new DecryptedState(array);
+    }
+
+    private JSONArray readFile(SuFile file, String key) throws IOException, XmlPullParserException {
+        try (SuFileInputStream inStream = new SuFileInputStream(file)) {
+            XmlPullParser parser = Xml.newPullParser();
+            parser.setFeature(XmlPullParser.FEATURE_PROCESS_NAMESPACES, false);
+            parser.setInput(inStream, null);
+            parser.nextTag();
+
+            for (PreferenceParser.XmlEntry entry : PreferenceParser.parse(parser)) {
+                if (entry.Name.equals(key)) {
+                    return new JSONArray(entry.Value);
+                }
+            }
+        } catch (JSONException ignored) {
+
+        }
+
+        return new JSONArray();
+    }
+
+    public static class EncryptedState extends DatabaseImporter.State {
+        private JSONArray _array;
+
+        private EncryptedState(JSONArray array) {
+            super(true);
+            _array = array;
+        }
+
+        @Override
+        public void decrypt(Context context, DecryptListener listener) {
+            Dialogs.showPasswordInputDialog(context, R.string.enter_password_authy_message, password -> {
+                try {
+                    for (int i = 0; i < _array.length(); i++) {
+                        JSONObject obj = _array.getJSONObject(i);
+                        String secretString = JsonUtils.optString(obj, "encryptedSecret");
+                        if (secretString == null) {
+                            continue;
+                        }
+
+                        byte[] encryptedSecret = Base64.decode(secretString);
+                        byte[] salt = obj.getString("salt").getBytes(StandardCharsets.UTF_8);
+                        SecretKeyFactory factory = SecretKeyFactory.getInstance("PBKDF2WithHmacSHA1");
+                        KeySpec spec = new PBEKeySpec(password, salt, ITERATIONS, KEY_SIZE);
+                        SecretKey key = factory.generateSecret(spec);
+
+                        Cipher cipher = Cipher.getInstance("AES/CBC/PKCS7Padding");
+                        IvParameterSpec ivSpec = new IvParameterSpec(IV);
+                        cipher.init(Cipher.DECRYPT_MODE, key, ivSpec);
+
+                        byte[] secret = cipher.doFinal(encryptedSecret);
+                        obj.remove("encryptedSecret");
+                        obj.remove("salt");
+                        obj.put("decryptedSecret", new String(secret, StandardCharsets.UTF_8));
+                    }
+
+                    DecryptedState state = new DecryptedState(_array);
+                    listener.onStateDecrypted(state);
+                } catch (JSONException
+                        | EncodingException
+                        | NoSuchAlgorithmException
+                        | InvalidKeySpecException
+                        | InvalidAlgorithmParameterException
+                        | InvalidKeyException
+                        | NoSuchPaddingException
+                        | BadPaddingException
+                        | IllegalBlockSizeException e) {
+                    listener.onError(e);
+                }
+            });
+        }
+    }
+
+    public static class DecryptedState extends DatabaseImporter.State {
+        private JSONArray _array;
+
+        private DecryptedState(JSONArray array) {
+            super(false);
+            _array = array;
+        }
+
+        @Override
+        public Result convert() throws DatabaseImporterException {
+            Result result = new Result();
+
+            try {
+                for (int i = 0; i < _array.length(); i++) {
+                    JSONObject entryObj = _array.getJSONObject(i);
+                    try {
+                        VaultEntry entry = convertEntry(entryObj);
+                        result.addEntry(entry);
+                    } catch (DatabaseImporterEntryException e) {
+                        result.addError(e);
+                    }
+                }
+            } catch (JSONException e) {
+                throw new DatabaseImporterException(e);
+            }
+
+            return result;
+        }
+
+        private static VaultEntry convertEntry(JSONObject entry) throws DatabaseImporterEntryException {
+            try {
+                AuthyEntryInfo authyEntryInfo = new AuthyEntryInfo();
+                authyEntryInfo.OriginalName = JsonUtils.optString(entry, "originalName");
+                authyEntryInfo.OriginalIssuer = JsonUtils.optString(entry, "originalIssuer");
+                authyEntryInfo.AccountType = JsonUtils.optString(entry, "accountType");
+                authyEntryInfo.Name = entry.optString("name");
+
+                boolean isAuthy = !entry.optString("accountType", "authy").equals("authenticator");
+                sanitizeEntryInfo(authyEntryInfo, isAuthy);
+
+                byte[] secret;
+                if (isAuthy) {
+                    secret = Hex.decode(entry.getString("secretSeed"));
+                } else {
+                    secret = Base32.decode(entry.getString("decryptedSecret"));
+                }
+
+                int digits = entry.getInt("digits");
+                OtpInfo info = new TotpInfo(secret, "SHA1", digits, digits == 7 ? 10 : 30);
+                return new VaultEntry(info, authyEntryInfo.Name, authyEntryInfo.Issuer);
+            } catch (OtpInfoException | JSONException | EncodingException e) {
+                throw new DatabaseImporterEntryException(e, entry.toString());
+            }
+        }
+
+        private static void sanitizeEntryInfo(AuthyEntryInfo info, boolean isAuthy) {
+            if (!isAuthy) {
+                String separator = "";
+
+                if (info.OriginalIssuer != null) {
+                    info.Issuer = info.OriginalIssuer;
+                } else if (info.OriginalName != null && info.OriginalName.contains(":")) {
+                    info.Issuer = info.OriginalName.substring(0, info.OriginalName.indexOf(":"));
+                    separator = ":";
+                } else if (info.Name.contains(" - ")) {
+                    info.Issuer = info.Name.substring(0, info.Name.indexOf(" - "));
+                    separator = " - ";
+                } else {
+                    info.Issuer = info.AccountType.substring(0, 1).toUpperCase() + info.AccountType.substring(1);
+                }
+
+                info.Name = info.Name.replace(info.Issuer + separator, "");
+            } else {
+                info.Issuer = info.Name;
+                info.Name = "";
+            }
+        }
+    }
+
+    private static class AuthyEntryInfo {
+        String OriginalName;
+        String OriginalIssuer;
+        String AccountType;
+        String Issuer;
+        String Name;
+    }
+}

app/src/main/java/com/beemdevelopment/aegis/importers/DatabaseAppImporter.java

@@ -1,50 +0,0 @@
-package com.beemdevelopment.aegis.importers;
-
-import android.content.Context;
-
-import com.beemdevelopment.aegis.db.DatabaseEntry;
-
-import java.lang.reflect.InvocationTargetException;
-import java.util.Collections;
-import java.util.LinkedHashMap;
-import java.util.List;
-import java.util.Map;
-
-public abstract class DatabaseAppImporter implements DatabaseImporter {
-    private static Map<String, Class<? extends DatabaseAppImporter>> _importers;
-    static {
-        // note: keep this list sorted alphabetically
-        LinkedHashMap<String, Class<? extends DatabaseAppImporter>> importers = new LinkedHashMap<>();
-        importers.put("Google Authenticator", GoogleAuthAppImporter.class);
-        _importers = Collections.unmodifiableMap(importers);
-    }
-
-    private Context _context;
-
-    protected DatabaseAppImporter(Context context) {
-        _context = context;
-    }
-
-    public abstract void parse() throws DatabaseImporterException;
-
-    public abstract List<DatabaseEntry> convert() throws DatabaseImporterException;
-
-    public abstract boolean isEncrypted();
-
-    public Context getContext() {
-        return _context;
-    }
-
-    public static DatabaseAppImporter create(Context context, Class<? extends DatabaseAppImporter> type) {
-        try {
-            return type.getConstructor(Context.class).newInstance(context);
-        } catch (IllegalAccessException | InstantiationException
-                | NoSuchMethodException | InvocationTargetException e) {
-            throw new RuntimeException(e);
-        }
-    }
-
-    public static Map<String, Class<? extends DatabaseAppImporter>> getImporters() {
-        return _importers;
-    }
-}

app/src/main/java/com/beemdevelopment/aegis/importers/DatabaseFileImporter.java

@@ -1,55 +0,0 @@
-package com.beemdevelopment.aegis.importers;
-
-import android.content.Context;
-
-import java.lang.reflect.InvocationTargetException;
-import java.util.Collections;
-import java.util.LinkedHashMap;
-import java.util.List;
-import java.util.Map;
-
-import com.beemdevelopment.aegis.db.DatabaseEntry;
-import com.beemdevelopment.aegis.util.ByteInputStream;
-
-public abstract class DatabaseFileImporter implements DatabaseImporter {
-    private static Map<String, Class<? extends DatabaseFileImporter>> _importers;
-    static {
-        // note: keep this list sorted alphabetically
-        LinkedHashMap<String, Class<? extends DatabaseFileImporter>> importers = new LinkedHashMap<>();
-        importers.put("Aegis", AegisFileImporter.class);
-        importers.put("andOTP", AndOtpFileImporter.class);
-        importers.put("FreeOTP", FreeOtpFileImporter.class);
-        _importers = Collections.unmodifiableMap(importers);
-    }
-
-    private Context _context;
-    protected ByteInputStream _stream;
-
-    protected DatabaseFileImporter(Context context, ByteInputStream stream) {
-        _context = context;
-        _stream = stream;
-    }
-
-    public abstract void parse() throws DatabaseImporterException;
-
-    public abstract List<DatabaseEntry> convert() throws DatabaseImporterException;
-
-    public abstract boolean isEncrypted();
-
-    public Context getContext() {
-        return _context;
-    }
-
-    public static DatabaseFileImporter create(Context context, ByteInputStream stream, Class<? extends DatabaseFileImporter> type) {
-        try {
-            return type.getConstructor(Context.class, ByteInputStream.class).newInstance(context, stream);
-        } catch (IllegalAccessException | InstantiationException
-                | NoSuchMethodException | InvocationTargetException e) {
-            throw new RuntimeException(e);
-        }
-    }
-
-    public static Map<String, Class<? extends DatabaseFileImporter>> getImporters() {
-        return _importers;
-    }
-}

app/src/main/java/com/beemdevelopment/aegis/importers/DatabaseImporter.java

@@ -1,14 +1,174 @@
 package com.beemdevelopment.aegis.importers;
 
 import android.content.Context;
+import android.content.pm.PackageManager;
 
-import com.beemdevelopment.aegis.db.DatabaseEntry;
+import androidx.annotation.StringRes;
 
+import com.beemdevelopment.aegis.R;
+import com.beemdevelopment.aegis.util.UUIDMap;
+import com.beemdevelopment.aegis.vault.VaultEntry;
+import com.topjohnwu.superuser.io.SuFile;
+import com.topjohnwu.superuser.io.SuFileInputStream;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.lang.reflect.InvocationTargetException;
+import java.util.ArrayList;
+import java.util.Collections;
 import java.util.List;
+import java.util.stream.Collectors;
 
-public interface DatabaseImporter {
-    void parse() throws DatabaseImporterException;
-    List<DatabaseEntry> convert() throws DatabaseImporterException;
-    boolean isEncrypted();
-    Context getContext();
+public abstract class DatabaseImporter {
+    private Context _context;
+
+    private static List<Definition> _importers;
+
+    static {
+        // note: keep these lists sorted alphabetically
+        _importers = new ArrayList<>();
+        _importers.add(new Definition("Aegis", AegisImporter.class, R.string.importer_help_aegis, false));
+        _importers.add(new Definition("Authenticator Plus", AuthenticatorPlusImporter.class, R.string.importer_help_authenticator_plus, false));
+        _importers.add(new Definition("Authy", AuthyImporter.class, R.string.importer_help_authy, true));
+        _importers.add(new Definition("andOTP", AndOtpImporter.class, R.string.importer_help_andotp, false));
+        _importers.add(new Definition("FreeOTP", FreeOtpImporter.class, R.string.importer_help_freeotp, true));
+        _importers.add(new Definition("FreeOTP+", FreeOtpPlusImporter.class, R.string.importer_help_freeotp_plus, true));
+        _importers.add(new Definition("Google Authenticator", GoogleAuthImporter.class, R.string.importer_help_google_authenticator, true));
+        _importers.add(new Definition("Microsoft Authenticator", MicrosoftAuthImporter.class, R.string.importer_help_microsoft_authenticator, true));
+        _importers.add(new Definition("Plain text", GoogleAuthUriImporter.class, R.string.importer_help_plain_text, false));
+        _importers.add(new Definition("Steam", SteamImporter.class, R.string.importer_help_steam, true));
+        _importers.add(new Definition("TOTP Authenticator", TotpAuthenticatorImporter.class, R.string.importer_help_totp_authenticator, true));
+        _importers.add(new Definition("WinAuth", WinAuthImporter.class, R.string.importer_help_winauth, false));
+    }
+
+    public DatabaseImporter(Context context) {
+        _context = context;
+    }
+
+    protected Context getContext() {
+        return _context;
+    }
+
+    protected abstract SuFile getAppPath() throws DatabaseImporterException, PackageManager.NameNotFoundException;
+
+    protected SuFile getAppPath(String pkgName, String subPath) throws PackageManager.NameNotFoundException {
+        PackageManager man = getContext().getPackageManager();
+        return new SuFile(man.getApplicationInfo(pkgName, 0).dataDir, subPath);
+    }
+
+    protected abstract State read(InputStream stream, boolean isInternal) throws DatabaseImporterException;
+
+    public State read(InputStream stream) throws DatabaseImporterException {
+        return read(stream, false);
+    }
+
+    public State readFromApp() throws PackageManager.NameNotFoundException, DatabaseImporterException {
+        SuFile file = getAppPath();
+        try (SuFileInputStream stream = new SuFileInputStream(file)) {
+            return read(stream, true);
+        } catch (IOException e) {
+            throw new DatabaseImporterException(e);
+        }
+    }
+
+    public static DatabaseImporter create(Context context, Class<? extends DatabaseImporter> type) {
+        try {
+            return type.getConstructor(Context.class).newInstance(context);
+        } catch (IllegalAccessException | InstantiationException
+                | NoSuchMethodException | InvocationTargetException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    public static List<Definition> getImporters(boolean isDirect) {
+        if (isDirect) {
+            return Collections.unmodifiableList(_importers.stream().filter(Definition::supportsDirect).collect(Collectors.toList()));
+        }
+
+        return Collections.unmodifiableList(_importers);
+    }
+
+    public static class Definition {
+        private final String _name;
+        private final Class<? extends DatabaseImporter> _type;
+        private final @StringRes int _help;
+        private final boolean _supportsDirect;
+
+        public Definition(String name, Class<? extends DatabaseImporter> type, @StringRes int help, boolean supportsDirect) {
+            _name = name;
+            _type = type;
+            _help = help;
+            _supportsDirect = supportsDirect;
+        }
+
+        public String getName() {
+            return _name;
+        }
+
+        public Class<? extends DatabaseImporter> getType() {
+            return _type;
+        }
+
+        public @StringRes int getHelp() {
+            return _help;
+        }
+
+        public boolean supportsDirect() {
+            return _supportsDirect;
+        }
+    }
+
+    public static abstract class State {
+        private boolean _encrypted;
+
+        public State(boolean encrypted) {
+            _encrypted = encrypted;
+        }
+
+        public boolean isEncrypted() {
+            return _encrypted;
+        }
+
+        public void decrypt(Context context, DecryptListener listener) throws DatabaseImporterException {
+            if (!_encrypted) {
+                throw new RuntimeException("Attempted to decrypt a plain text database");
+            }
+
+            throw new UnsupportedOperationException();
+        }
+
+        public Result convert() throws DatabaseImporterException {
+            if (_encrypted) {
+                throw new RuntimeException("Attempted to convert database before decrypting it");
+            }
+
+            throw new UnsupportedOperationException();
+        }
+    }
+
+    public static class Result {
+        private UUIDMap<VaultEntry> _entries = new UUIDMap<>();
+        private List<DatabaseImporterEntryException> _errors = new ArrayList<>();
+
+        public void addEntry(VaultEntry entry) {
+            _entries.add(entry);
+        }
+
+        public void addError(DatabaseImporterEntryException error) {
+            _errors.add(error);
+        }
+
+        public UUIDMap<VaultEntry> getEntries() {
+            return _entries;
+        }
+
+        public List<DatabaseImporterEntryException> getErrors() {
+            return _errors;
+        }
+    }
+
+    public interface DecryptListener {
+        void onStateDecrypted(State state);
+        void onError(Exception e);
+    }
 }

app/src/main/java/com/beemdevelopment/aegis/importers/DatabaseImporterEntryException.java

@@ -0,0 +1,19 @@
+package com.beemdevelopment.aegis.importers;
+
+public class DatabaseImporterEntryException extends Exception {
+    private String _text;
+
+    public DatabaseImporterEntryException(String message, String text) {
+        super(message);
+        _text = text;
+    }
+
+    public DatabaseImporterEntryException(Throwable cause, String text) {
+        super(cause);
+        _text = text;
+    }
+
+    public String getText() {
+        return _text;
+    }
+}

app/src/main/java/com/beemdevelopment/aegis/importers/FreeOtpFileImporter.java

@@ -1,161 +0,0 @@
-package com.beemdevelopment.aegis.importers;
-
-import android.content.Context;
-import android.util.Xml;
-
-import org.json.JSONArray;
-import org.json.JSONException;
-import org.json.JSONObject;
-import org.xmlpull.v1.XmlPullParser;
-import org.xmlpull.v1.XmlPullParserException;
-
-import java.io.IOException;
-import java.util.ArrayList;
-import java.util.List;
-
-import com.beemdevelopment.aegis.db.DatabaseEntry;
-import com.beemdevelopment.aegis.otp.HotpInfo;
-import com.beemdevelopment.aegis.otp.OtpInfo;
-import com.beemdevelopment.aegis.otp.OtpInfoException;
-import com.beemdevelopment.aegis.otp.TotpInfo;
-import com.beemdevelopment.aegis.util.ByteInputStream;
-
-public class FreeOtpFileImporter extends DatabaseFileImporter {
-    private List<XmlEntry> _xmlEntries;
-
-    public FreeOtpFileImporter(Context context, ByteInputStream stream) {
-        super(context, stream);
-    }
-
-    private static class XmlEntry {
-        String Name;
-        String Value;
-    }
-
-    @Override
-    public void parse() throws DatabaseImporterException {
-        try {
-            XmlPullParser parser = Xml.newPullParser();
-            parser.setFeature(XmlPullParser.FEATURE_PROCESS_NAMESPACES, false);
-            parser.setInput(_stream, null);
-            parser.nextTag();
-            _xmlEntries = parse(parser);
-        } catch (XmlPullParserException | IOException e) {
-            throw new DatabaseImporterException(e);
-        }
-    }
-
-    @Override
-    public List<DatabaseEntry> convert() throws DatabaseImporterException {
-        List<DatabaseEntry> entries = new ArrayList<>();
-
-        try {
-            for (XmlEntry xmlEntry : _xmlEntries) {
-                if (xmlEntry.Name.equals("tokenOrder")) {
-                    // TODO: order
-                    JSONArray array = new JSONArray(xmlEntry.Value);
-                } else {
-                    JSONObject obj = new JSONObject(xmlEntry.Value);
-
-                    String type = obj.getString("type").toLowerCase();
-                    String algo = obj.getString("algo");
-                    int digits = obj.getInt("digits");
-                    byte[] secret = toBytes(obj.getJSONArray("secret"));
-
-                    OtpInfo info;
-                    if (type.equals("totp")) {
-                        info = new TotpInfo(secret, algo, digits, obj.getInt("period"));
-                    } else if (type.equals("hotp")) {
-                        info = new HotpInfo(secret, algo, digits, obj.getLong("counter"));
-                    } else {
-                        throw new DatabaseImporterException("unsupported otp type: " + type);
-                    }
-
-                    String issuer = obj.getString("issuerExt");
-                    String name = obj.optString("label");
-
-                    DatabaseEntry entry = new DatabaseEntry(info, name, issuer);
-                    entries.add(entry);
-                }
-            }
-        } catch (OtpInfoException | JSONException e) {
-            throw new DatabaseImporterException(e);
-        }
-
-        return entries;
-    }
-
-    @Override
-    public boolean isEncrypted() {
-        return false;
-    }
-
-    private static List<XmlEntry> parse(XmlPullParser parser)
-            throws IOException, XmlPullParserException {
-        List<XmlEntry> entries = new ArrayList<>();
-
-        parser.require(XmlPullParser.START_TAG, null, "map");
-        while (parser.next() != XmlPullParser.END_TAG) {
-            if (parser.getEventType() != XmlPullParser.START_TAG) {
-                continue;
-            }
-
-            if (!parser.getName().equals("string")) {
-                skip(parser);
-                continue;
-            }
-
-            entries.add(parseEntry(parser));
-        }
-
-        return entries;
-    }
-
-    private static byte[] toBytes(JSONArray array) throws JSONException {
-        byte[] bytes = new byte[array.length()];
-        for (int i = 0; i < array.length(); i++) {
-            bytes[i] = (byte)array.getInt(i);
-        }
-        return bytes;
-    }
-
-    private static XmlEntry parseEntry(XmlPullParser parser) throws IOException, XmlPullParserException {
-        parser.require(XmlPullParser.START_TAG, null, "string");
-        String name = parser.getAttributeValue(null, "name");
-        String value = parseText(parser);
-        parser.require(XmlPullParser.END_TAG, null, "string");
-
-        XmlEntry entry = new XmlEntry();
-        entry.Name = name;
-        entry.Value = value;
-        return entry;
-    }
-
-    private static String parseText(XmlPullParser parser) throws IOException, XmlPullParserException {
-        String text = "";
-        if (parser.next() == XmlPullParser.TEXT) {
-            text = parser.getText();
-            parser.nextTag();
-        }
-        return text;
-    }
-
-    private static void skip(XmlPullParser parser) throws IOException, XmlPullParserException {
-        // source: https://developer.android.com/training/basics/network-ops/xml.html
-        if (parser.getEventType() != XmlPullParser.START_TAG) {
-            throw new IllegalStateException();
-        }
-
-        int depth = 1;
-        while (depth != 0) {
-            switch (parser.next()) {
-                case XmlPullParser.END_TAG:
-                    depth--;
-                    break;
-                case XmlPullParser.START_TAG:
-                    depth++;
-                    break;
-            }
-        }
-    }
-}

app/src/main/java/com/beemdevelopment/aegis/importers/FreeOtpImporter.java

@@ -0,0 +1,191 @@
+package com.beemdevelopment.aegis.importers;
+
+import android.content.Context;
+import android.content.pm.PackageManager;
+import android.util.Xml;
+
+import com.beemdevelopment.aegis.otp.HotpInfo;
+import com.beemdevelopment.aegis.otp.OtpInfo;
+import com.beemdevelopment.aegis.otp.OtpInfoException;
+import com.beemdevelopment.aegis.otp.SteamInfo;
+import com.beemdevelopment.aegis.otp.TotpInfo;
+import com.beemdevelopment.aegis.util.PreferenceParser;
+import com.beemdevelopment.aegis.vault.VaultEntry;
+import com.topjohnwu.superuser.io.SuFile;
+
+import org.json.JSONArray;
+import org.json.JSONException;
+import org.json.JSONObject;
+import org.xmlpull.v1.XmlPullParser;
+import org.xmlpull.v1.XmlPullParserException;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.ArrayList;
+import java.util.List;
+
+public class FreeOtpImporter extends DatabaseImporter {
+    private static final String _subPath = "shared_prefs/tokens.xml";
+    private static final String _pkgName = "org.fedorahosted.freeotp";
+
+    public FreeOtpImporter(Context context) {
+        super(context);
+    }
+
+    @Override
+    protected SuFile getAppPath() throws PackageManager.NameNotFoundException {
+        return getAppPath(_pkgName, _subPath);
+    }
+
+    @Override
+    public State read(InputStream stream, boolean isInternal) throws DatabaseImporterException {
+        try {
+            XmlPullParser parser = Xml.newPullParser();
+            parser.setFeature(XmlPullParser.FEATURE_PROCESS_NAMESPACES, false);
+            parser.setInput(stream, null);
+            parser.nextTag();
+
+            List<JSONObject> entries = new ArrayList<>();
+            for (PreferenceParser.XmlEntry entry : PreferenceParser.parse(parser)) {
+                if (!entry.Name.equals("tokenOrder")) {
+                    entries.add(new JSONObject(entry.Value));
+                }
+            }
+            return new State(entries);
+        } catch (XmlPullParserException | IOException | JSONException e) {
+            throw new DatabaseImporterException(e);
+        }
+    }
+
+    public static class State extends DatabaseImporter.State {
+        private List<JSONObject> _entries;
+
+        public State(List<JSONObject> entries) {
+            super(false);
+            _entries = entries;
+        }
+
+        @Override
+        public Result convert() {
+            Result result = new Result();
+
+            for (JSONObject obj : _entries) {
+                try {
+                    VaultEntry entry = convertEntry(obj);
+                    result.addEntry(entry);
+                } catch (DatabaseImporterEntryException e) {
+                    result.addError(e);
+                }
+            }
+
+            return result;
+        }
+
+        private static VaultEntry convertEntry(JSONObject obj) throws DatabaseImporterEntryException {
+            try {
+                String type = obj.getString("type").toLowerCase();
+                String algo = obj.getString("algo");
+                int digits = obj.getInt("digits");
+                byte[] secret = toBytes(obj.getJSONArray("secret"));
+
+                String issuer = obj.getString("issuerExt");
+                String name = obj.optString("label");
+
+                OtpInfo info;
+                switch (type) {
+                    case "totp":
+                        int period = obj.getInt("period");
+                        if (issuer.equals("Steam")) {
+                            info = new SteamInfo(secret, algo, digits, period);
+                        } else {
+                            info = new TotpInfo(secret, algo, digits, period);
+                        }
+                        break;
+                    case "hotp":
+                        info = new HotpInfo(secret, algo, digits, obj.getLong("counter"));
+                        break;
+                    default:
+                        throw new DatabaseImporterException("unsupported otp type: " + type);
+                }
+
+                return new VaultEntry(info, name, issuer);
+            } catch (DatabaseImporterException | OtpInfoException | JSONException e) {
+                throw new DatabaseImporterEntryException(e, obj.toString());
+            }
+        }
+    }
+
+    private static List<JSONObject> parseXml(XmlPullParser parser)
+            throws IOException, XmlPullParserException, JSONException {
+        List<JSONObject> entries = new ArrayList<>();
+
+        parser.require(XmlPullParser.START_TAG, null, "map");
+        while (parser.next() != XmlPullParser.END_TAG) {
+            if (parser.getEventType() != XmlPullParser.START_TAG) {
+                continue;
+            }
+
+            if (!parser.getName().equals("string")) {
+                skip(parser);
+                continue;
+            }
+
+            JSONObject entry = parseXmlEntry(parser);
+            if (entry != null) {
+                entries.add(entry);
+            }
+        }
+
+        return entries;
+    }
+
+    private static byte[] toBytes(JSONArray array) throws JSONException {
+        byte[] bytes = new byte[array.length()];
+        for (int i = 0; i < array.length(); i++) {
+            bytes[i] = (byte)array.getInt(i);
+        }
+        return bytes;
+    }
+
+    private static JSONObject parseXmlEntry(XmlPullParser parser)
+            throws IOException, XmlPullParserException, JSONException {
+        parser.require(XmlPullParser.START_TAG, null, "string");
+        String name = parser.getAttributeValue(null, "name");
+        String value = parseXmlText(parser);
+        parser.require(XmlPullParser.END_TAG, null, "string");
+
+        if (name.equals("tokenOrder")) {
+            return null;
+        }
+
+        return new JSONObject(value);
+    }
+
+    private static String parseXmlText(XmlPullParser parser) throws IOException, XmlPullParserException {
+        String text = "";
+        if (parser.next() == XmlPullParser.TEXT) {
+            text = parser.getText();
+            parser.nextTag();
+        }
+        return text;
+    }
+
+    private static void skip(XmlPullParser parser) throws IOException, XmlPullParserException {
+        // source: https://developer.android.com/training/basics/network-ops/xml.html
+        if (parser.getEventType() != XmlPullParser.START_TAG) {
+            throw new IllegalStateException();
+        }
+
+        int depth = 1;
+        while (depth != 0) {
+            switch (parser.next()) {
+                case XmlPullParser.END_TAG:
+                    depth--;
+                    break;
+                case XmlPullParser.START_TAG:
+                    depth++;
+                    break;
+            }
+        }
+    }
+}

app/src/main/java/com/beemdevelopment/aegis/importers/FreeOtpPlusImporter.java

@@ -0,0 +1,57 @@
+package com.beemdevelopment.aegis.importers;
+
+import android.content.Context;
+import android.content.pm.PackageManager;
+
+import com.beemdevelopment.aegis.util.IOUtils;
+import com.topjohnwu.superuser.io.SuFile;
+
+import org.json.JSONArray;
+import org.json.JSONException;
+import org.json.JSONObject;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.nio.charset.StandardCharsets;
+import java.util.ArrayList;
+import java.util.List;
+
+public class FreeOtpPlusImporter extends DatabaseImporter {
+    private static final String _subPath = "shared_prefs/tokens.xml";
+    private static final String _pkgName = "org.liberty.android.freeotpplus";
+
+    public FreeOtpPlusImporter(Context context) {
+        super(context);
+    }
+
+    @Override
+    protected SuFile getAppPath() throws PackageManager.NameNotFoundException {
+        return getAppPath(_pkgName, _subPath);
+    }
+
+    @Override
+    public State read(InputStream stream, boolean isInternal) throws DatabaseImporterException {
+        State state;
+
+        if (isInternal) {
+            state = new FreeOtpImporter(getContext()).read(stream);
+        } else {
+            try {
+                String json = new String(IOUtils.readAll(stream), StandardCharsets.UTF_8);
+                JSONObject obj = new JSONObject(json);
+                JSONArray array = obj.getJSONArray("tokens");
+
+                List<JSONObject> entries = new ArrayList<>();
+                for (int i = 0; i < array.length(); i++) {
+                    entries.add(array.getJSONObject(i));
+                }
+
+                state = new FreeOtpImporter.State(entries);
+            } catch (IOException | JSONException e) {
+                throw new DatabaseImporterException(e);
+            }
+        }
+
+        return state;
+    }
+}

app/src/main/java/com/beemdevelopment/aegis/importers/GoogleAuthAppImporter.java

@@ -1,124 +0,0 @@
-package com.beemdevelopment.aegis.importers;
-
-import android.annotation.SuppressLint;
-import android.content.Context;
-import android.database.Cursor;
-import android.database.sqlite.SQLiteDatabase;
-import android.database.sqlite.SQLiteException;
-
-import com.beemdevelopment.aegis.db.DatabaseEntry;
-import com.beemdevelopment.aegis.encoding.Base32;
-import com.beemdevelopment.aegis.encoding.Base32Exception;
-import com.beemdevelopment.aegis.otp.HotpInfo;
-import com.beemdevelopment.aegis.otp.OtpInfo;
-import com.beemdevelopment.aegis.otp.OtpInfoException;
-import com.beemdevelopment.aegis.otp.TotpInfo;
-import com.topjohnwu.superuser.ShellUtils;
-import com.topjohnwu.superuser.io.SuFile;
-import com.topjohnwu.superuser.io.SuFileInputStream;
-
-import java.io.File;
-import java.io.FileOutputStream;
-import java.io.IOException;
-import java.util.ArrayList;
-import java.util.List;
-
-import static android.database.sqlite.SQLiteDatabase.OPEN_READONLY;
-
-public class GoogleAuthAppImporter extends DatabaseAppImporter {
-    private static final int TYPE_TOTP = 0;
-    private static final int TYPE_HOTP = 1;
-
-    @SuppressLint("SdCardPath")
-    private static final String _filename = "/data/data/com.google.android.apps.authenticator2/databases/databases";
-
-    private List<DatabaseEntry> _entries = new ArrayList<>();
-
-    public GoogleAuthAppImporter(Context context) {
-        super(context);
-    }
-
-    @Override
-    public void parse() throws DatabaseImporterException {
-        File file;
-
-        try {
-            // create a temporary copy of the database so that SQLiteDatabase can open it
-            file = File.createTempFile("google-import-", "", getContext().getCacheDir());
-            try (SuFileInputStream in = new SuFileInputStream(new SuFile(_filename))) {
-                try (FileOutputStream out = new FileOutputStream(file)) {
-                    ShellUtils.pump(in, out);
-                }
-            }
-        } catch (IOException e) {
-            throw new DatabaseImporterException(e);
-        }
-
-        try (SQLiteDatabase db = SQLiteDatabase.openDatabase(file.getAbsolutePath(), null, OPEN_READONLY, null)) {
-            try (Cursor cursor = db.rawQuery("SELECT * FROM accounts", null)) {
-                if (!cursor.moveToFirst()) {
-                    return;
-                }
-
-                do {
-                    int type = getInt(cursor, "type");
-                    byte[] secret = Base32.decode(getString(cursor, "secret").toCharArray());
-
-                    OtpInfo info;
-                    switch (type) {
-                        case TYPE_TOTP:
-                            info = new TotpInfo(secret);
-                            break;
-                        case TYPE_HOTP:
-                            info = new HotpInfo(secret, getInt(cursor, "counter"));
-                            break;
-                        default:
-                            throw new DatabaseImporterException("unsupported otp type: " + type);
-                    }
-
-                    String name = getString(cursor, "email", "");
-                    String issuer = getString(cursor, "issuer", "");
-
-                    String[] parts = name.split(":");
-                    if (parts.length == 2) {
-                        name = parts[1];
-                    }
-
-                    DatabaseEntry entry = new DatabaseEntry(info, name, issuer);
-                    _entries.add(entry);
-                } while(cursor.moveToNext());
-            }
-        } catch (SQLiteException | OtpInfoException | Base32Exception e) {
-            throw new DatabaseImporterException(e);
-        } finally {
-            // always delete the temporary file
-            file.delete();
-        }
-    }
-
-    @Override
-    public List<DatabaseEntry> convert() {
-        return _entries;
-    }
-
-    @Override
-    public boolean isEncrypted() {
-        return false;
-    }
-
-    private static String getString(Cursor cursor, String columnName) {
-        return getString(cursor, columnName, null);
-    }
-
-    private static String getString(Cursor cursor, String columnName, String def) {
-        String res = cursor.getString(cursor.getColumnIndex(columnName));
-        if (res == null) {
-            return def;
-        }
-        return res;
-    }
-
-    private static int getInt(Cursor cursor, String columnName) {
-        return cursor.getInt(cursor.getColumnIndex(columnName));
-    }
-}

app/src/main/java/com/beemdevelopment/aegis/importers/GoogleAuthImporter.java

@@ -0,0 +1,139 @@
+package com.beemdevelopment.aegis.importers;
+
+import android.content.Context;
+import android.content.pm.PackageManager;
+import android.database.Cursor;
+
+import com.beemdevelopment.aegis.encoding.Base32;
+import com.beemdevelopment.aegis.encoding.EncodingException;
+import com.beemdevelopment.aegis.otp.HotpInfo;
+import com.beemdevelopment.aegis.otp.OtpInfo;
+import com.beemdevelopment.aegis.otp.OtpInfoException;
+import com.beemdevelopment.aegis.otp.TotpInfo;
+import com.beemdevelopment.aegis.vault.VaultEntry;
+import com.topjohnwu.superuser.io.SuFile;
+
+import java.io.InputStream;
+import java.util.List;
+
+public class GoogleAuthImporter extends DatabaseImporter {
+    private static final int TYPE_TOTP = 0;
+    private static final int TYPE_HOTP = 1;
+
+    private static final String _subPath = "databases/databases";
+    private static final String _pkgName = "com.google.android.apps.authenticator2";
+
+    public GoogleAuthImporter(Context context) {
+        super(context);
+    }
+
+    @Override
+    protected SuFile getAppPath() throws PackageManager.NameNotFoundException {
+        return getAppPath(_pkgName, _subPath);
+    }
+    
+    @Override
+    public State read(InputStream stream, boolean isInternal) throws DatabaseImporterException {
+        SqlImporterHelper helper = new SqlImporterHelper(getContext());
+        List<Entry> entries = helper.read(Entry.class, stream, "accounts");
+        return new State(entries);
+    }
+
+    @Override
+    public DatabaseImporter.State readFromApp() throws PackageManager.NameNotFoundException, DatabaseImporterException {
+        SuFile path = getAppPath();
+        SqlImporterHelper helper = new SqlImporterHelper(getContext());
+        List<Entry> entries = helper.read(Entry.class, path, "accounts");
+        return new State(entries);
+    }
+
+    public static class State extends DatabaseImporter.State {
+        private List<Entry> _entries;
+
+        private State(List<Entry> entries) {
+            super(false);
+            _entries = entries;
+        }
+
+        @Override
+        public Result convert() {
+            Result result = new Result();
+
+            for (Entry sqlEntry : _entries) {
+                try {
+                    VaultEntry entry = convertEntry(sqlEntry);
+                    result.addEntry(entry);
+                } catch (DatabaseImporterEntryException e) {
+                    result.addError(e);
+                }
+            }
+
+            return result;
+        }
+
+        private static VaultEntry convertEntry(Entry entry) throws DatabaseImporterEntryException {
+            try {
+                byte[] secret = Base32.decode(entry.getSecret());
+
+                OtpInfo info;
+                switch (entry.getType()) {
+                    case TYPE_TOTP:
+                        info = new TotpInfo(secret);
+                        break;
+                    case TYPE_HOTP:
+                        info = new HotpInfo(secret, entry.getCounter());
+                        break;
+                    default:
+                        throw new DatabaseImporterException("unsupported otp type: " + entry.getType());
+                }
+
+                String name = entry.getEmail();
+                String[] parts = name.split(":");
+                if (parts.length == 2) {
+                    name = parts[1];
+                }
+
+                return new VaultEntry(info, name, entry.getIssuer());
+            } catch (EncodingException | OtpInfoException | DatabaseImporterException e) {
+                throw new DatabaseImporterEntryException(e, entry.toString());
+            }
+        }
+    }
+
+    private static class Entry extends SqlImporterHelper.Entry {
+        private int _type;
+        private String _secret;
+        private String _email;
+        private String _issuer;
+        private long _counter;
+
+        public Entry(Cursor cursor) {
+            super(cursor);
+            _type = SqlImporterHelper.getInt(cursor, "type");
+            _secret = SqlImporterHelper.getString(cursor, "secret");
+            _email = SqlImporterHelper.getString(cursor, "email", "");
+            _issuer = SqlImporterHelper.getString(cursor, "issuer", "");
+            _counter = SqlImporterHelper.getLong(cursor, "counter");
+        }
+
+        public int getType() {
+            return _type;
+        }
+
+        public String getSecret() {
+            return _secret;
+        }
+
+        public String getEmail() {
+            return _email;
+        }
+
+        public String getIssuer() {
+            return _issuer;
+        }
+
+        public long getCounter() {
+            return _counter;
+        }
+    }
+}

app/src/main/java/com/beemdevelopment/aegis/importers/GoogleAuthUriImporter.java

@@ -0,0 +1,78 @@
+package com.beemdevelopment.aegis.importers;
+
+import android.content.Context;
+
+import com.beemdevelopment.aegis.otp.GoogleAuthInfo;
+import com.beemdevelopment.aegis.otp.GoogleAuthInfoException;
+import com.beemdevelopment.aegis.vault.VaultEntry;
+import com.topjohnwu.superuser.io.SuFile;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.util.ArrayList;
+
+public class GoogleAuthUriImporter extends DatabaseImporter {
+    public GoogleAuthUriImporter(Context context) {
+        super(context);
+    }
+
+    @Override
+    protected SuFile getAppPath() {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public GoogleAuthUriImporter.State read(InputStream stream, boolean isInternal) throws DatabaseImporterException {
+        ArrayList<String> lines = new ArrayList<>();
+
+        try (InputStreamReader streamReader = new InputStreamReader(stream);
+             BufferedReader bufferedReader = new BufferedReader(streamReader)) {
+            String line;
+            while ((line = bufferedReader.readLine()) != null) {
+                if (!line.isEmpty()) {
+                    lines.add(line);
+                }
+            }
+        } catch (IOException e) {
+            throw new DatabaseImporterException(e);
+        }
+
+        return new GoogleAuthUriImporter.State(lines);
+    }
+
+    public static class State extends DatabaseImporter.State {
+        private ArrayList<String> _lines;
+
+        private State(ArrayList<String> lines) {
+            super(false);
+            _lines = lines;
+        }
+
+        @Override
+        public DatabaseImporter.Result convert() {
+            DatabaseImporter.Result result = new DatabaseImporter.Result();
+
+            for (String line : _lines) {
+                try {
+                    VaultEntry entry = convertEntry(line);
+                    result.addEntry(entry);
+                } catch (DatabaseImporterEntryException e) {
+                    result.addError(e);
+                }
+            }
+
+            return result;
+        }
+
+        private static VaultEntry convertEntry(String line) throws DatabaseImporterEntryException {
+            try {
+                GoogleAuthInfo info = GoogleAuthInfo.parseUri(line);
+                return new VaultEntry(info);
+            } catch (GoogleAuthInfoException e) {
+                throw new DatabaseImporterEntryException(e, line);
+            }
+        }
+    }
+}

app/src/main/java/com/beemdevelopment/aegis/importers/MicrosoftAuthImporter.java

@@ -0,0 +1,132 @@
+package com.beemdevelopment.aegis.importers;
+
+import android.content.Context;
+import android.content.pm.PackageManager;
+import android.database.Cursor;
+
+import com.beemdevelopment.aegis.encoding.Base32;
+import com.beemdevelopment.aegis.encoding.Base64;
+import com.beemdevelopment.aegis.encoding.EncodingException;
+import com.beemdevelopment.aegis.otp.OtpInfo;
+import com.beemdevelopment.aegis.otp.OtpInfoException;
+import com.beemdevelopment.aegis.otp.TotpInfo;
+import com.beemdevelopment.aegis.vault.VaultEntry;
+import com.topjohnwu.superuser.io.SuFile;
+
+import java.io.InputStream;
+import java.util.List;
+
+public class MicrosoftAuthImporter extends DatabaseImporter {
+    private static final String _subPath = "databases/PhoneFactor";
+    private static final String _pkgName = "com.azure.authenticator";
+
+    private static final int TYPE_TOTP = 0;
+    private static final int TYPE_MICROSOFT = 1;
+
+    public MicrosoftAuthImporter(Context context) {
+        super(context);
+    }
+
+    @Override
+    protected SuFile getAppPath() throws PackageManager.NameNotFoundException {
+        return getAppPath(_pkgName, _subPath);
+    }
+
+    @Override
+    public State read(InputStream stream, boolean isInternal) throws DatabaseImporterException {
+        SqlImporterHelper helper = new SqlImporterHelper(getContext());
+        List<Entry> entries = helper.read(Entry.class, stream, "accounts");
+        return new State(entries);
+    }
+
+    @Override
+    public DatabaseImporter.State readFromApp() throws PackageManager.NameNotFoundException, DatabaseImporterException {
+        SuFile path = getAppPath();
+        SqlImporterHelper helper = new SqlImporterHelper(getContext());
+        List<Entry> entries = helper.read(Entry.class, path, "accounts");
+        return new State(entries);
+    }
+
+    public static class State extends DatabaseImporter.State {
+        private List<Entry> _entries;
+
+        private State(List<Entry> entries) {
+            super(false);
+            _entries = entries;
+        }
+
+        @Override
+        public Result convert() {
+            Result result = new Result();
+
+            for (Entry sqlEntry : _entries) {
+                try {
+                    int type = sqlEntry.getType();
+                    if (type == TYPE_TOTP || type == TYPE_MICROSOFT) {
+                        VaultEntry entry = convertEntry(sqlEntry);
+                        result.addEntry(entry);
+                    }
+                } catch (DatabaseImporterEntryException e) {
+                    result.addError(e);
+                }
+            }
+
+            return result;
+        }
+
+        private static VaultEntry convertEntry(Entry entry) throws DatabaseImporterEntryException {
+            try {
+                byte[] secret;
+                int digits = 6;
+
+                switch (entry.getType()) {
+                    case TYPE_TOTP:
+                        secret = Base32.decode(entry.getSecret());
+                        break;
+                    case TYPE_MICROSOFT:
+                        digits = 8;
+                        secret = Base64.decode(entry.getSecret());
+                        break;
+                    default:
+                        throw new DatabaseImporterEntryException(String.format("Unsupported OTP type: %d", entry.getType()), entry.toString());
+                }
+
+                OtpInfo info = new TotpInfo(secret, "SHA1", digits, 30);
+                return new VaultEntry(info, entry.getUserName(), entry.getIssuer());
+            } catch (EncodingException | OtpInfoException e) {
+                throw new DatabaseImporterEntryException(e, entry.toString());
+            }
+        }
+    }
+
+    private static class Entry extends SqlImporterHelper.Entry {
+        private int _type;
+        private String _secret;
+        private String _issuer;
+        private String _userName;
+
+        public Entry(Cursor cursor) {
+            super(cursor);
+            _type = SqlImporterHelper.getInt(cursor, "account_type");
+            _secret = SqlImporterHelper.getString(cursor, "oath_secret_key");
+            _issuer = SqlImporterHelper.getString(cursor, "name");
+            _userName = SqlImporterHelper.getString(cursor, "username");
+        }
+
+        public int getType() {
+            return _type;
+        }
+
+        public String getSecret() {
+            return _secret;
+        }
+
+        public String getIssuer() {
+            return _issuer;
+        }
+
+        public String getUserName() {
+            return _userName;
+        }
+    }
+}

app/src/main/java/com/beemdevelopment/aegis/importers/SqlImporterHelper.java

@@ -0,0 +1,145 @@
+package com.beemdevelopment.aegis.importers;
+
+import android.content.Context;
+import android.database.Cursor;
+import android.database.sqlite.SQLiteDatabase;
+import android.database.sqlite.SQLiteException;
+
+import com.beemdevelopment.aegis.util.IOUtils;
+import com.google.common.io.Files;
+import com.topjohnwu.superuser.io.SuFile;
+import com.topjohnwu.superuser.io.SuFileInputStream;
+
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.lang.reflect.InvocationTargetException;
+import java.util.ArrayList;
+import java.util.List;
+
+import static android.database.sqlite.SQLiteDatabase.OPEN_READONLY;
+
+public class SqlImporterHelper {
+    private Context _context;
+
+    public SqlImporterHelper(Context context) {
+        _context = context;
+    }
+
+    public <T extends Entry> List<T> read(Class<T> type, SuFile path, String table) throws DatabaseImporterException {
+        File dir = Files.createTempDir();
+        File mainFile = new File(dir, path.getName());
+
+        List<File> fileCopies = new ArrayList<>();
+        for (SuFile file : SqlImporterHelper.findDatabaseFiles(path)) {
+            // create temporary copies of the database files so that SQLiteDatabase can open them
+            File fileCopy = null;
+            try (SuFileInputStream inStream = new SuFileInputStream(file)) {
+                fileCopy = new File(dir, file.getName());
+                try (FileOutputStream out = new FileOutputStream(fileCopy)) {
+                    IOUtils.copy(inStream, out);
+                }
+                fileCopies.add(fileCopy);
+            } catch (IOException e) {
+                if (fileCopy != null) {
+                    fileCopy.delete();
+                }
+
+                for (File fileCopy2 : fileCopies) {
+                    fileCopy2.delete();
+                }
+
+                throw new DatabaseImporterException(e);
+            }
+        }
+
+        try {
+            return read(type, mainFile, table);
+        } finally {
+            for (File fileCopy : fileCopies) {
+                fileCopy.delete();
+            }
+        }
+    }
+
+    private static SuFile[] findDatabaseFiles(SuFile path) throws DatabaseImporterException {
+        SuFile[] files = path.getParentFile().listFiles((d, name) -> name.startsWith(path.getName()));
+        if (files == null || files.length == 0) {
+            throw new DatabaseImporterException(String.format("File does not exist: %s", path.getAbsolutePath()));
+        }
+
+        return files;
+    }
+
+    public <T extends Entry> List<T> read(Class<T> type, InputStream inStream, String table) throws DatabaseImporterException {
+        File file = null;
+        try {
+            // create a temporary copy of the database so that SQLiteDatabase can open it
+            file = File.createTempFile("db-import-", "", _context.getCacheDir());
+            try (FileOutputStream out = new FileOutputStream(file)) {
+                IOUtils.copy(inStream, out);
+            }
+        } catch (IOException e) {
+            if (file != null) {
+                file.delete();
+            }
+            throw new DatabaseImporterException(e);
+        }
+
+        try {
+            return read(type, file, table);
+        } finally {
+            // always delete the temporary file
+            file.delete();
+        }
+    }
+
+    private <T extends Entry> List<T> read(Class<T> type, File file, String table) throws DatabaseImporterException {
+        try (SQLiteDatabase db = SQLiteDatabase.openDatabase(file.getAbsolutePath(), null, OPEN_READONLY)) {
+            try (Cursor cursor = db.rawQuery(String.format("SELECT * FROM %s", table), null)) {
+                List<T> entries = new ArrayList<>();
+
+                if (cursor.moveToFirst()) {
+                    do {
+                        T entry = type.getDeclaredConstructor(Cursor.class).newInstance(cursor);
+                        entries.add(entry);
+                    } while (cursor.moveToNext());
+                }
+
+                return entries;
+            } catch (InstantiationException | IllegalAccessException
+                    | NoSuchMethodException | InvocationTargetException e) {
+                throw new RuntimeException(e);
+            }
+        } catch (SQLiteException e) {
+            throw new DatabaseImporterException(e);
+        }
+    }
+
+    public static String getString(Cursor cursor, String columnName) {
+        return cursor.getString(cursor.getColumnIndex(columnName));
+    }
+
+    public static String getString(Cursor cursor, String columnName, String def) {
+        String res = cursor.getString(cursor.getColumnIndex(columnName));
+        if (res == null) {
+            return def;
+        }
+        return res;
+    }
+
+    public static int getInt(Cursor cursor, String columnName) {
+        return cursor.getInt(cursor.getColumnIndex(columnName));
+    }
+
+    public static long getLong(Cursor cursor, String columnName) {
+        return cursor.getLong(cursor.getColumnIndex(columnName));
+    }
+
+    public static abstract class Entry {
+        public Entry(Cursor cursor) {
+
+        }
+    }
+}

app/src/main/java/com/beemdevelopment/aegis/importers/SteamImporter.java

@@ -0,0 +1,87 @@
+package com.beemdevelopment.aegis.importers;
+
+import android.content.Context;
+import android.content.pm.PackageManager;
+
+import com.beemdevelopment.aegis.encoding.Base64;
+import com.beemdevelopment.aegis.encoding.EncodingException;
+import com.beemdevelopment.aegis.otp.OtpInfoException;
+import com.beemdevelopment.aegis.otp.SteamInfo;
+import com.beemdevelopment.aegis.util.IOUtils;
+import com.beemdevelopment.aegis.vault.VaultEntry;
+import com.topjohnwu.superuser.io.SuFile;
+
+import org.json.JSONException;
+import org.json.JSONObject;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.nio.charset.StandardCharsets;
+
+public class SteamImporter extends DatabaseImporter {
+    private static final String _subDir = "files";
+    private static final String _pkgName = "com.valvesoftware.android.steam.community";
+
+    public SteamImporter(Context context) {
+        super(context);
+    }
+
+    @Override
+    protected SuFile getAppPath() throws DatabaseImporterException, PackageManager.NameNotFoundException {
+        // NOTE: this assumes that a global root shell has already been obtained by the caller
+        SuFile path = getAppPath(_pkgName, _subDir);
+        SuFile[] files = path.listFiles((d, name) -> name.startsWith("Steamguard-"));
+        if (files == null || files.length == 0) {
+            throw new DatabaseImporterException(String.format("Empty directory: %s", path.getAbsolutePath()));
+        }
+
+        // TODO: handle multiple files (can this even occur?)
+        return files[0];
+    }
+
+    @Override
+    public State read(InputStream stream, boolean isInternal) throws DatabaseImporterException {
+        try {
+            byte[] bytes = IOUtils.readAll(stream);
+            JSONObject obj = new JSONObject(new String(bytes, StandardCharsets.UTF_8));
+            return new State(obj);
+        } catch (IOException | JSONException e) {
+            throw new DatabaseImporterException(e);
+        }
+    }
+
+    public static class State extends DatabaseImporter.State {
+        private JSONObject _obj;
+
+        private State(JSONObject obj) {
+            super(false);
+            _obj = obj;
+        }
+
+        @Override
+        public Result convert() {
+            Result result = new Result();
+
+            try {
+                VaultEntry entry = convertEntry(_obj);
+                result.addEntry(entry);
+            } catch (DatabaseImporterEntryException e) {
+                result.addError(e);
+            }
+
+            return result;
+        }
+
+        private static VaultEntry convertEntry(JSONObject obj) throws DatabaseImporterEntryException {
+            try {
+                byte[] secret = Base64.decode(obj.getString("shared_secret"));
+                SteamInfo info = new SteamInfo(secret);
+
+                String account = obj.getString("account_name");
+                return new VaultEntry(info, account, "Steam");
+            } catch (JSONException | EncodingException | OtpInfoException e) {
+                throw new DatabaseImporterEntryException(e, obj.toString());
+            }
+        }
+    }
+}

app/src/main/java/com/beemdevelopment/aegis/importers/TotpAuthenticatorImporter.java

@@ -0,0 +1,234 @@
+package com.beemdevelopment.aegis.importers;
+
+import android.content.Context;
+import android.content.pm.PackageManager;
+import android.util.Xml;
+
+import androidx.appcompat.app.AlertDialog;
+
+import com.beemdevelopment.aegis.R;
+import com.beemdevelopment.aegis.crypto.CryptoUtils;
+import com.beemdevelopment.aegis.encoding.Base32;
+import com.beemdevelopment.aegis.encoding.Base64;
+import com.beemdevelopment.aegis.encoding.EncodingException;
+import com.beemdevelopment.aegis.encoding.Hex;
+import com.beemdevelopment.aegis.otp.OtpInfoException;
+import com.beemdevelopment.aegis.otp.TotpInfo;
+import com.beemdevelopment.aegis.ui.Dialogs;
+import com.beemdevelopment.aegis.util.IOUtils;
+import com.beemdevelopment.aegis.util.PreferenceParser;
+import com.beemdevelopment.aegis.vault.VaultEntry;
+import com.topjohnwu.superuser.io.SuFile;
+
+import org.json.JSONArray;
+import org.json.JSONException;
+import org.json.JSONObject;
+import org.xmlpull.v1.XmlPullParser;
+import org.xmlpull.v1.XmlPullParserException;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.nio.charset.StandardCharsets;
+import java.security.InvalidAlgorithmParameterException;
+import java.security.InvalidKeyException;
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+import java.util.ArrayList;
+import java.util.List;
+
+import javax.crypto.BadPaddingException;
+import javax.crypto.Cipher;
+import javax.crypto.IllegalBlockSizeException;
+import javax.crypto.NoSuchPaddingException;
+import javax.crypto.SecretKey;
+import javax.crypto.spec.IvParameterSpec;
+import javax.crypto.spec.SecretKeySpec;
+
+public class TotpAuthenticatorImporter extends DatabaseImporter {
+    private static final String _subPath = "shared_prefs/TOTP_Authenticator_Preferences.xml";
+    private static final String _pkgName = "com.authenticator.authservice2";
+
+    // WARNING: DON'T DO THIS IN YOUR OWN CODE
+    // this is a hardcoded password and nonce, used solely to decrypt TOTP Authenticator backups
+    private static final char[] PASSWORD = "TotpAuthenticator".toCharArray();
+    private static final byte[] IV = new byte[]{
+            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+    };
+
+    private static final String PREF_KEY = "STATIC_TOTP_CODES_LIST";
+
+    public TotpAuthenticatorImporter(Context context) {
+        super(context);
+    }
+
+    @Override
+    protected SuFile getAppPath() throws PackageManager.NameNotFoundException {
+        return getAppPath(_pkgName, _subPath);
+    }
+
+    @Override
+    public State read(InputStream stream, boolean isInternal) throws DatabaseImporterException {
+        try {
+            if (isInternal) {
+                XmlPullParser parser = Xml.newPullParser();
+                parser.setFeature(XmlPullParser.FEATURE_PROCESS_NAMESPACES, false);
+                parser.setInput(stream, null);
+                parser.nextTag();
+
+                String data = null;
+                for (PreferenceParser.XmlEntry entry : PreferenceParser.parse(parser)) {
+                    if (entry.Name.equals(PREF_KEY)) {
+                        data = entry.Value;
+                    }
+                }
+
+                if (data == null) {
+                    throw new DatabaseImporterException(String.format("Key %s not found in shared preference file", PREF_KEY));
+                }
+
+                List<JSONObject> entries = parse(data);
+                return new DecryptedState(entries);
+            } else {
+                byte[] base64 = IOUtils.readAll(stream);
+                byte[] cipherText = Base64.decode(base64);
+                return new EncryptedState(cipherText);
+            }
+        } catch (IOException | XmlPullParserException | JSONException e) {
+            throw new DatabaseImporterException(e);
+        }
+    }
+
+    private static List<JSONObject> parse(String data) throws JSONException {
+        JSONArray array = new JSONArray(data);
+
+        List<JSONObject> entries = new ArrayList<>();
+        for (int i = 0; i < array.length(); ++i) {
+            String s = array.getString(i);
+            entries.add(new JSONObject(s));
+        }
+
+        return entries;
+    }
+
+    public static class EncryptedState extends DatabaseImporter.State {
+        private byte[] _data;
+
+        public EncryptedState(byte[] data) {
+            super(true);
+            _data = data;
+        }
+
+        private DecryptedState decrypt(char[] password) throws DatabaseImporterException {
+            try {
+                // WARNING: DON'T DO THIS IN YOUR OWN CODE
+                // this is not a secure way to derive a key from a password
+                MessageDigest hash = MessageDigest.getInstance("SHA-256");
+                byte[] keyBytes = hash.digest(CryptoUtils.toBytes(password));
+                SecretKey key = new SecretKeySpec(keyBytes, "AES");
+
+                Cipher cipher = Cipher.getInstance("AES/CBC/PKCS7Padding");
+                IvParameterSpec spec = new IvParameterSpec(IV);
+                cipher.init(Cipher.DECRYPT_MODE, key, spec);
+
+                byte[] bytes = cipher.doFinal(_data);
+                JSONObject obj = new JSONObject(new String(bytes, StandardCharsets.UTF_8));
+                JSONArray keys = obj.names();
+
+                List<JSONObject> entries = new ArrayList<>();
+                if (keys != null && keys.length() > 0) {
+                    entries = parse((String) keys.get(0));
+                }
+
+                return new DecryptedState(entries);
+            } catch (NoSuchAlgorithmException
+                    | NoSuchPaddingException
+                    | InvalidAlgorithmParameterException
+                    | InvalidKeyException
+                    | BadPaddingException
+                    | IllegalBlockSizeException
+                    | JSONException e) {
+                throw new DatabaseImporterException(e);
+            }
+        }
+
+        @Override
+        public void decrypt(Context context, DecryptListener listener) {
+            Dialogs.showSecureDialog(new AlertDialog.Builder(context)
+                    .setMessage(R.string.choose_totpauth_importer)
+                    .setPositiveButton(R.string.yes, (dialog, which) -> {
+                        Dialogs.showPasswordInputDialog(context, password -> {
+                            decrypt(password, listener);
+                        });
+                    })
+                    .setNegativeButton(R.string.no, (dialog, which) -> {
+                        decrypt(PASSWORD, listener);
+                    })
+                    .create());
+        }
+
+        private void decrypt(char[] password, DecryptListener listener) {
+            try {
+                DecryptedState state = decrypt(password);
+                listener.onStateDecrypted(state);
+            } catch (DatabaseImporterException e) {
+                listener.onError(e);
+            }
+        }
+    }
+
+    public static class DecryptedState extends DatabaseImporter.State {
+        private List<JSONObject> _objs;
+
+        private DecryptedState(List<JSONObject> objs) {
+            super(false);
+            _objs = objs;
+        }
+
+        @Override
+        public Result convert() {
+            Result result = new Result();
+
+            for (JSONObject obj : _objs) {
+                try {
+                    VaultEntry entry = convertEntry(obj);
+                    result.addEntry(entry);
+                } catch (DatabaseImporterEntryException e) {
+                    result.addError(e);
+                }
+            }
+
+            return result;
+        }
+
+        private static VaultEntry convertEntry(JSONObject obj) throws DatabaseImporterEntryException {
+            try {
+                int base = obj.getInt("base");
+                String secretString = obj.getString("key");
+
+                byte[] secret;
+                switch (base) {
+                    case 16:
+                        secret = Hex.decode(secretString);
+                        break;
+                    case 32:
+                        secret = Base32.decode(secretString);
+                        break;
+                    case 64:
+                        secret = Base64.decode(secretString);
+                        break;
+                    default:
+                        throw new DatabaseImporterEntryException(String.format("Unsupported secret encoding: base %d", base), obj.toString());
+                }
+
+                TotpInfo info = new TotpInfo(secret, "SHA1", 6, 30);
+                String name = obj.optString("name");
+                String issuer = obj.optString("issuer");
+
+                return new VaultEntry(info, name, issuer);
+            } catch (JSONException | OtpInfoException | EncodingException e) {
+                throw new DatabaseImporterEntryException(e, obj.toString());
+            }
+        }
+    }
+}

app/src/main/java/com/beemdevelopment/aegis/importers/WinAuthImporter.java

@@ -0,0 +1,47 @@
+package com.beemdevelopment.aegis.importers;
+
+import android.content.Context;
+
+import com.beemdevelopment.aegis.vault.VaultEntry;
+import com.topjohnwu.superuser.io.SuFile;
+
+import java.io.InputStream;
+
+public class WinAuthImporter extends DatabaseImporter {
+    public WinAuthImporter(Context context) {
+        super(context);
+    }
+
+    @Override
+    protected SuFile getAppPath() {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public WinAuthImporter.State read(InputStream stream, boolean isInternal) throws DatabaseImporterException {
+        GoogleAuthUriImporter importer = new GoogleAuthUriImporter(getContext());
+        DatabaseImporter.State state = importer.read(stream);
+        return new State(state);
+    }
+
+    public static class State extends DatabaseImporter.State {
+        private DatabaseImporter.State _state;
+
+        private State(DatabaseImporter.State state) {
+            super(false);
+            _state = state;
+        }
+
+        @Override
+        public Result convert() throws DatabaseImporterException {
+            Result result = _state.convert();
+
+            for (VaultEntry entry : result.getEntries()) {
+                entry.setIssuer(entry.getName());
+                entry.setName("WinAuth");
+            }
+
+            return result;
+        }
+    }
+}

app/src/main/java/com/beemdevelopment/aegis/licenses/GlideLicense.java

@@ -0,0 +1,34 @@
+package com.beemdevelopment.aegis.licenses;
+
+import android.content.Context;
+
+import com.beemdevelopment.aegis.R;
+
+import de.psdev.licensesdialog.licenses.License;
+
+public class GlideLicense extends License {
+    @Override
+    public String getName() {
+        return "Glide License";
+    }
+
+    @Override
+    public String readSummaryTextFromResources(Context context) {
+        return getContent(context, R.raw.glide_license);
+    }
+
+    @Override
+    public String readFullTextFromResources(Context context) {
+        return getContent(context, R.raw.glide_license);
+    }
+
+    @Override
+    public String getVersion() {
+        return null;
+    }
+
+    @Override
+    public String getUrl() {
+        return "https://github.com/bumptech/glide/blob/master/LICENSE";
+    }
+}

app/src/main/java/com/beemdevelopment/aegis/licenses/ProtobufLicense.java

@@ -0,0 +1,34 @@
+package com.beemdevelopment.aegis.licenses;
+
+import android.content.Context;
+
+import com.beemdevelopment.aegis.R;
+
+import de.psdev.licensesdialog.licenses.License;
+
+public class ProtobufLicense extends License  {
+    @Override
+    public String getName() {
+        return "Protocol Buffers License";
+    }
+
+    @Override
+    public String readSummaryTextFromResources(Context context) {
+        return getContent(context, R.raw.protobuf_license);
+    }
+
+    @Override
+    public String readFullTextFromResources(Context context) {
+        return getContent(context, R.raw.protobuf_license);
+    }
+
+    @Override
+    public String getVersion() {
+        return null;
+    }
+
+    @Override
+    public String getUrl() {
+        return "https://raw.githubusercontent.com/protocolbuffers/protobuf/master/LICENSE";
+    }
+}