Release v0.2.2

Fix true black theme in all activities
Closes #32. Also tested on API 19.
2019-03-28 13:46:39 +01:00 · 2019-03-28 13:46:33 +01:00 · 2019-03-28 13:46:07 +01:00 · 2019-03-28 13:45:43 +01:00 · 2019-03-28 10:47:24 +00:00 · 2019-03-28 01:27:07 +01:00
60 changed files with 903 additions and 614 deletions
@@ -16,6 +16,7 @@ out/
 # Gradle files
 .gradle/
 build/
+release/

 # Local configuration file (sdk path, etc)
 local.properties
@@ -34,8 +35,7 @@ captures/

 # Intellij
 *.iml
-.idea/workspace.xml
-.idea/libraries
+.idea/

 # Keystore files
 *.jks
@@ -1 +0,0 @@
-Aegis
@@ -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>
@@ -1,3 +0,0 @@
-<component name="CopyrightManager">
-  <settings default="" />
-</component>
@@ -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>
@@ -1,19 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="GradleSettings">
-    <option name="linkedExternalProjectsSettings">
-      <GradleProjectSettings>
-        <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>
@@ -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>
@@ -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>
@@ -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>
@@ -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>
@@ -10,12 +10,16 @@ Aegis is a free, secure and open source 2FA app for Android.
    - Password (scrypt)
 	- Fingerprint (Android Keystore)
  - Screen capture prevention
+  - Tap to reveal ability
 - Multiple ways to add new entries
  - Scan QR code
  - Enter details manually
-  - Import
+  - Import from files
    - andOTP
    - FreeOTP
+    - Aegis
+  - Import from apps (requires root):
+    - Google Authenticator
 - Supported algorithms:
   - HOTP ([RFC 4226](https://tools.ietf.org/html/rfc4226))
   - TOTP ([RFC 6238](https://tools.ietf.org/html/rfc6238))
@@ -25,18 +29,20 @@ Aegis is a free, secure and open source 2FA app for Android.
  - Drag and drop
  - Custom groups
  - Advanced entry editing
- Material design
-  - Light and dark themes
+- Material design with multiple themes:
+  - Light theme
+  - Dark theme
+  - Amoled / true dark theme
 - Export (plaintext or encrypted)

 ## Screenshots

-[<img width=200 alt="Main Activity" src="assets/screenshot_main.png?raw=true">](assets/screenshot_main.png?raw=true)
-[<img width=200 alt="Settings Activity" src="assets/screenshot_settings.png?raw=true">](/assets/screenshot_settings.png?raw=true)
-[<img width=200 alt="Edit Activity" src="assets/screenshot_edit.png?raw=true">](/assets/screenshot_edit.png?raw=true)
+[<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)

-[<img width=200 alt="Main Activity" src="assets/screenshot_main_group.png?raw=true">](assets/screenshot_main_group.png?raw=true)
-[<img width=200 alt="Main Activity" src="assets/screenshot_main_dark.png?raw=true">](assets/screenshot_main_dark.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)

 ## Downloads

@@ -56,7 +62,12 @@ There are plans to make it available on F-Droid as well.
 - [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

 ## License

 This project is licensed under the GNU General Public License v3.0. See the [LICENSE](LICENSE) file for details.
+
+## Attribution
+
+The icon is largely based on a design by Freepik from Flaticon.
@@ -7,8 +7,8 @@ android {
        applicationId "com.beemdevelopment.aegis"
        minSdkVersion 19
        targetSdkVersion 28
-        versionCode 2
-        versionName "0.1.1"
+        versionCode 5
+        versionName "0.2.2"
    }
    buildTypes {
        debug {
@@ -29,6 +29,7 @@ android {
 }

 dependencies {
+    def libsuVersion = '2.3.2'
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'com.amulyakhare:com.amulyakhare.textdrawable:1.0.1'
    implementation 'androidx.appcompat:appcompat:1.0.2'
@@ -45,5 +46,7 @@ dependencies {
    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.topjohnwu.libsu:core:${libsuVersion}"
+    implementation "com.github.topjohnwu.libsu:io:${libsuVersion}"
    testImplementation 'junit:junit:4.12'
 }
@@ -15,6 +15,10 @@ public class Preferences {
        return _prefs.getBoolean("pref_dark_mode", false);
    }

+    public boolean isTapToRevealEnabled() {
+        return _prefs.getBoolean("pref_tap_to_reveal", false);
+    }
+
    public boolean isSecureScreenEnabled() {
        return _prefs.getBoolean("pref_secure_screen", true);
    }
@@ -31,6 +35,24 @@ public class Preferences {
        _prefs.edit().putBoolean("pref_intro", done).apply();
    }

+    public void setTapToRevealTime(int number) {
+        _prefs.edit().putInt("pref_tap_to_reveal_time", number).apply();
+    }
+
+    public int getTapToRevealTime() {
+        return _prefs.getInt("pref_tap_to_reveal_time", 30);
+    }
+
+    public int getCurrentTheme() {
+        return _prefs.getInt("pref_current_theme", 0);
+    }
+
+    public void setCurrentTheme(Theme theme) {
+        _prefs.edit().putInt("pref_current_theme", theme.ordinal()).apply();
+
+    }
+
+
    public int getTimeout() {
        return _prefs.getInt("pref_timeout", -1);
    }
@@ -0,0 +1,39 @@
+package com.beemdevelopment.aegis;
+
+public enum Theme {
+    LIGHT,
+    DARK,
+    AMOLED;
+
+    public static Theme fromInteger(int x) {
+        switch(x) {
+            case 0:
+                return LIGHT;
+            case 1:
+                return DARK;
+            case 2:
+                return AMOLED;
+        }
+        return null;
+    }
+
+    public static String getThemeName(int x) {
+        switch(x) {
+            case 0:
+                return "Light theme";
+            case 1:
+                return "Dark theme";
+            case 2:
+                return "Amoled theme";
+        }
+        return null;
+    }
+
+    public static String[] getThemeNames() {
+        return new String[] {
+                "Light theme",
+                "Dark theme",
+                "Amoled theme"
+        };
+    }
+}
@@ -1,189 +1,47 @@
 package com.beemdevelopment.aegis.crypto.otp;

-/*
-* OneTimePasswordAlgorithm.java
-* OATH Initiative,
-* HOTP one-time password algorithm
-*
-*/
-
-/* Copyright (C) 2004, OATH.  All rights reserved.
-*
-* License to copy and use this software is granted provided that it
-* is identified as the "OATH HOTP Algorithm" in all material
-* mentioning or referencing this software or this function.
-*
-* License is also granted to make and use derivative works provided
-* that such works are identified as
-*  "derived from OATH HOTP algorithm"
-* in all material mentioning or referencing the derived work.
-*
-* OATH (Open AuTHentication) and its members make no
-* representations concerning either the merchantability of this
-* software or the suitability of this software for any particular
-* purpose.
-*
-* It is provided "as is" without express or implied warranty
-* of any kind and OATH AND ITS MEMBERS EXPRESSaLY DISCLAIMS
-* ANY WARRANTY OR LIABILITY OF ANY KIND relating to this software.
-*
-* These notices must be retained in any copies of any part of this
-* documentation and/or software.
-*/
-
+import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
 import java.security.NoSuchAlgorithmException;
 import java.security.InvalidKeyException;

 import javax.crypto.Mac;
 import javax.crypto.spec.SecretKeySpec;

-/**
- * This class contains static methods that are used to calculate the
- * One-Time Password (OTP) using
- * JCE to provide the HMAC-SHA-1.
- *
- * @author Loren Hart
- * @version 1.0
- */
 public class HOTP {
    private HOTP() {
    }

-    // These are used to calculate the check-sum digits.
-    //                                0  1  2  3  4  5  6  7  8  9
-    private static final int[] doubleDigits =
-            {0, 2, 4, 6, 8, 1, 3, 5, 7, 9};
-
-    /**
-     * Calculates the checksum using the credit card algorithm.
-     * This algorithm has the advantage that it detects any single
-     * mistyped digit and any single transposition of
-     * adjacent digits.
-     *
-     * @param num    the number to calculate the checksum for
-     * @param digits number of significant places in the number
-     * @return the checksum of num
-     */
-    public static int calcChecksum(long num, int digits) {
-        boolean doubleDigit = true;
-        int total = 0;
-        while (0 < digits--) {
-            int digit = (int) (num % 10);
-            num /= 10;
-            if (doubleDigit) {
-                digit = doubleDigits[digit];
-            }
-            total += digit;
-            doubleDigit = !doubleDigit;
-        }
-        int result = total % 10;
-        if (result > 0) {
-            result = 10 - result;
-        }
-        return result;
-    }
-
-    /**
-     * This method uses the JCE to provide the HMAC-SHA-1
-     * algorithm.
-     * HMAC computes a Hashed Message Authentication Code and
-     * in this case SHA1 is the hash algorithm used.
-     *
-     * @param keyBytes the bytes to use for the HMAC-SHA-1 key
-     * @param text     the message or text to be authenticated.
-     * @throws NoSuchAlgorithmException if no provider makes
-     *                                  either HmacSHA1 or HMAC-SHA-1
-     *                                  digest algorithms available.
-     * @throws InvalidKeyException      The secret provided was not a valid HMAC-SHA-1 key.
-     */
-    public static byte[] hmac_sha1(byte[] keyBytes, byte[] text)
+    public static String generateOTP(byte[] secret, String algo, int digits, long counter)
            throws NoSuchAlgorithmException, InvalidKeyException {
-        //        try {
-        Mac hmacSha1;
-        try {
-            hmacSha1 = Mac.getInstance("HmacSHA1");
-        } catch (NoSuchAlgorithmException nsae) {
-            hmacSha1 = Mac.getInstance("HMAC-SHA-1");
-        }
-        SecretKeySpec macKey =
-                new SecretKeySpec(keyBytes, "RAW");
-        hmacSha1.init(macKey);
-        return hmacSha1.doFinal(text);
-        //        } catch (GeneralSecurityException gse) {
-        //            throw new UndeclaredThrowableException(gse);
-        //        }
-    }
+        SecretKeySpec key = new SecretKeySpec(secret, "RAW");

-    private static final int[] DIGITS_POWER
-            // 0 1  2   3    4     5      6       7        8
-            = {1, 10, 100, 1000, 10000, 100000, 1000000, 10000000, 100000000};
+        // encode counter in big endian
+        byte[] counterBytes = ByteBuffer.allocate(8)
+                .order(ByteOrder.BIG_ENDIAN)
+                .putLong(counter)
+                .array();

-    /**
-     * This method generates an OTP value for the given
-     * set of parameters.
-     *
-     * @param secret           the shared secret
-     * @param movingFactor     the counter, time, or other value that
-     *                         changes on a per use basis.
-     * @param codeDigits       the number of digits in the OTP, not
-     *                         including the checksum, if any.
-     * @param addChecksum      a flag that indicates if a checksum digit
-     *                         should be appended to the OTP.
-     * @param truncationOffset the offset into the MAC result to
-     *                         begin truncation.  If this value is out of
-     *                         the range of 0 ... 15, then dynamic
-     *                         truncation  will be used.
-     *                         Dynamic truncation is when the last 4
-     *                         bits of the last byte of the MAC are
-     *                         used to determine the start offset.
-     * @return A numeric String in base 10 that includes
-     * {@link codeDigits} digits plus the optional checksum
-     * digit if requested.
-     * @throws NoSuchAlgorithmException if no provider makes
-     *                                  either HmacSHA1 or HMAC-SHA-1
-     *                                  digest algorithms available.
-     * @throws InvalidKeyException      The secret provided was not
-     *                                  a valid HMAC-SHA-1 key.
-     */
-    static public String generateOTP(byte[] secret,
-                                     long movingFactor,
-                                     int codeDigits,
-                                     boolean addChecksum,
-                                     int truncationOffset)
-            throws NoSuchAlgorithmException, InvalidKeyException {
-        // put movingFactor value into text byte array
-        String result = null;
-        int digits = addChecksum ? (codeDigits + 1) : codeDigits;
-        byte[] text = new byte[8];
-        for (int i = text.length - 1; i >= 0; i--) {
-            text[i] = (byte) (movingFactor & 0xff);
-            movingFactor >>= 8;
-        }
+        // calculate the hash of the counter
+        Mac mac = Mac.getInstance(algo);
+        mac.init(key);
+        byte[] hash = mac.doFinal(counterBytes);

-        // compute hmac hash
-        byte[] hash = hmac_sha1(secret, text);
-
-        // put selected bytes into result int
+        // truncate hash to get the HTOP value
+        // http://tools.ietf.org/html/rfc4226#section-5.4
        int offset = hash[hash.length - 1] & 0xf;
-        if ((0 <= truncationOffset) &&
-                (truncationOffset < (hash.length - 4))) {
-            offset = truncationOffset;
-        }
-        int binary =
-                ((hash[offset] & 0x7f) << 24)
-                        | ((hash[offset + 1] & 0xff) << 16)
-                        | ((hash[offset + 2] & 0xff) << 8)
-                        | (hash[offset + 3] & 0xff);
+        long bin = ((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);

-        int otp = binary % DIGITS_POWER[codeDigits];
-        if (addChecksum) {
-            otp = (otp * 10) + calcChecksum(otp, codeDigits);
+        // prepend zeroes if needed
+        StringBuilder res = new StringBuilder(Long.toString(otp));
+        while (res.length() < digits) {
+            res.insert(0, "0");
        }
-        result = Integer.toString(otp);
-        while (result.length() < digits) {
-            result = "0" + result;
-        }
-        return result;
+
+        return res.toString();
    }
 }
-
@@ -1,170 +1,21 @@
 package com.beemdevelopment.aegis.crypto.otp;

-/**
- Copyright (c) 2011 IETF Trust and the persons identified as
- authors of the code. All rights reserved.
+import java.security.InvalidKeyException;
+import java.security.NoSuchAlgorithmException;

- Redistribution and use in source and binary forms, with or without
- modification, is permitted pursuant to, and subject to the license
- terms contained in, the Simplified BSD License set forth in Section
- 4.c of the IETF Trust's Legal Provisions Relating to IETF Documents
- (http://trustee.ietf.org/license-info).
- */
-
-import java.lang.reflect.UndeclaredThrowableException;
-import java.security.GeneralSecurityException;
-import javax.crypto.Mac;
-import javax.crypto.spec.SecretKeySpec;
-import java.math.BigInteger;
-
-/**
- * This is an example implementation of the OATH
- * TOTP algorithm.
- * Visit www.openauthentication.org for more information.
- *
- * @author Johan Rydell, PortWise, Inc.
- */
 public class TOTP {

    private TOTP() {
    }

-    /**
-     * This method uses the JCE to provide the crypto algorithm.
-     * HMAC computes a Hashed Message Authentication Code with the
-     * crypto hash algorithm as a parameter.
-     *
-     * @param crypto:   the crypto algorithm (HmacSHA1, HmacSHA256,
-     *                  HmacSHA512)
-     * @param keyBytes: the bytes to use for the HMAC key
-     * @param text:     the message or text to be authenticated
-     */
-    private static byte[] hmac_sha(String crypto, byte[] keyBytes,
-                                   byte[] text) {
-        try {
-            Mac hmac;
-            hmac = Mac.getInstance(crypto);
-            SecretKeySpec macKey =
-                    new SecretKeySpec(keyBytes, "RAW");
-            hmac.init(macKey);
-            return hmac.doFinal(text);
-        } catch (GeneralSecurityException gse) {
-            throw new UndeclaredThrowableException(gse);
-        }
+    public static String 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);
    }

-    /**
-     * This method converts a HEX string to Byte[]
-     *
-     * @param hex: the HEX string
-     * @return: a byte array
-     */
-    private static byte[] hexStr2Bytes(String hex) {
-        // Adding one byte to get the right conversion
-        // Values starting with "0" can be converted
-        byte[] bArray = new BigInteger("10" + hex, 16).toByteArray();
-
-        // Copy all the REAL bytes, not the "first"
-        byte[] ret = new byte[bArray.length - 1];
-        for (int i = 0; i < ret.length; i++)
-            ret[i] = bArray[i + 1];
-        return ret;
-    }
-
-    private static final int[] DIGITS_POWER
-            // 0 1  2   3    4     5      6       7        8
-            = {1, 10, 100, 1000, 10000, 100000, 1000000, 10000000, 100000000};
-
-    /**
-     * This method generates a TOTP value for the given
-     * set of parameters.
-     *
-     * @param key:          the shared secret, HEX encoded
-     * @param time:         a value that reflects a time
-     * @param returnDigits: number of digits to return
-     * @return: a numeric String in base 10 that includes
-     * {@link truncationDigits} digits
-     */
-    public static String generateTOTP(byte[] key,
-                                      String time,
-                                      int returnDigits) {
-        return generateTOTP(key, time, returnDigits, "HmacSHA1");
-    }
-
-    /**
-     * This method generates a TOTP value for the given
-     * set of parameters.
-     *
-     * @param key:          the shared secret, HEX encoded
-     * @param time:         a value that reflects a time
-     * @param returnDigits: number of digits to return
-     * @return: a numeric String in base 10 that includes
-     * {@link truncationDigits} digits
-     */
-    public static String generateTOTP256(byte[] key,
-                                         String time,
-                                         int returnDigits) {
-        return generateTOTP(key, time, returnDigits, "HmacSHA256");
-    }
-
-    /**
-     * This method generates a TOTP value for the given
-     * set of parameters.
-     *
-     * @param key:          the shared secret, HEX encoded
-     * @param time:         a value that reflects a time
-     * @param returnDigits: number of digits to return
-     * @return: a numeric String in base 10 that includes
-     * {@link truncationDigits} digits
-     */
-    public static String generateTOTP512(byte[] key,
-                                         String time,
-                                         int returnDigits) {
-        return generateTOTP(key, time, returnDigits, "HmacSHA512");
-    }
-
-    /**
-     * This method generates a TOTP value for the given
-     * set of parameters.
-     *
-     * @param key:          the shared secret, HEX encoded
-     * @param time:         a value that reflects a time
-     * @param returnDigits: number of digits to return
-     * @param crypto:       the crypto function to use
-     * @return: a numeric String in base 10 that includes
-     * {@link truncationDigits} digits
-     */
-    public static String generateTOTP(byte[] key,
-                                      String time,
-                                      int returnDigits,
-                                      String crypto) {
-        String result = null;
-
-        // Using the counter
-        // First 8 bytes are for the movingFactor
-        // Compliant with base RFC 4226 (HOTP)
-        while (time.length() < 16)
-            time = "0" + time;
-
-        // Get the HEX in a Byte[]
-        byte[] msg = hexStr2Bytes(time);
-        byte[] hash = hmac_sha(crypto, key, msg);
-
-        // put selected bytes into result int
-        int offset = hash[hash.length - 1] & 0xf;
-
-        int binary =
-                ((hash[offset] & 0x7f) << 24) |
-                        ((hash[offset + 1] & 0xff) << 16) |
-                        ((hash[offset + 2] & 0xff) << 8) |
-                        (hash[offset + 3] & 0xff);
-
-        int otp = binary % DIGITS_POWER[returnDigits];
-
-        result = Integer.toString(otp);
-        while (result.length() < returnDigits) {
-            result = "0" + result;
-        }
-        return result;
+    public static String generateOTP(byte[] secret, String algo, int digits, long period)
+            throws InvalidKeyException, NoSuchAlgorithmException {
+        return generateOTP(secret, algo, digits, period, System.currentTimeMillis() / 1000);
    }
 }
@@ -1,5 +1,7 @@
 package com.beemdevelopment.aegis.importers;

+import android.content.Context;
+
 import org.json.JSONObject;

 import java.util.List;
@@ -12,12 +14,12 @@ import com.beemdevelopment.aegis.db.DatabaseFileCredentials;
 import com.beemdevelopment.aegis.db.DatabaseFileException;
 import com.beemdevelopment.aegis.util.ByteInputStream;

-public class AegisImporter extends DatabaseImporter {
+public class AegisFileImporter extends DatabaseFileImporter {
    private DatabaseFileCredentials _creds;
    private DatabaseFile _file;

-    public AegisImporter(ByteInputStream stream) {
-        super(stream);
+    public AegisFileImporter(Context context, ByteInputStream stream) {
+        super(context, stream);
    }

    @Override
@@ -1,5 +1,7 @@
 package com.beemdevelopment.aegis.importers;

+import android.content.Context;
+
 import org.json.JSONArray;
 import org.json.JSONException;
 import org.json.JSONObject;
@@ -17,11 +19,11 @@ import com.beemdevelopment.aegis.otp.OtpInfoException;
 import com.beemdevelopment.aegis.otp.TotpInfo;
 import com.beemdevelopment.aegis.util.ByteInputStream;

-public class AndOtpImporter extends DatabaseImporter {
+public class AndOtpFileImporter extends DatabaseFileImporter {
    private JSONArray _obj;

-    public AndOtpImporter(ByteInputStream stream) {
-        super(stream);
+    public AndOtpFileImporter(Context context, ByteInputStream stream) {
+        super(context, stream);
    }

    @Override
@@ -0,0 +1,50 @@
+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;
+    }
+}
@@ -0,0 +1,55 @@
+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;
+    }
+}
@@ -1,47 +1,14 @@
 package com.beemdevelopment.aegis.importers;

-import java.lang.reflect.InvocationTargetException;
-import java.util.Collections;
-import java.util.LinkedHashMap;
-import java.util.List;
-import java.util.Map;
+import android.content.Context;

 import com.beemdevelopment.aegis.db.DatabaseEntry;
-import com.beemdevelopment.aegis.util.ByteInputStream;

-public abstract class DatabaseImporter {
-    private static Map<String, Class<? extends DatabaseImporter>> _importers;
-    static {
-        // note: keep this list sorted alphabetically
-        LinkedHashMap<String, Class<? extends DatabaseImporter>> importers = new LinkedHashMap<>();
-        importers.put("Aegis", AegisImporter.class);
-        importers.put("andOTP", AndOtpImporter.class);
-        importers.put("FreeOTP", FreeOtpImporter.class);
-        _importers = Collections.unmodifiableMap(importers);
-    }
+import java.util.List;

-    protected ByteInputStream _stream;
-
-    protected DatabaseImporter(ByteInputStream stream) {
-        _stream = stream;
-    }
-
-    public abstract void parse() throws DatabaseImporterException;
-
-    public abstract List<DatabaseEntry> convert() throws DatabaseImporterException;
-
-    public abstract boolean isEncrypted();
-
-    public static DatabaseImporter create(ByteInputStream stream, Class<? extends DatabaseImporter> type) {
-        try {
-            return type.getConstructor(ByteInputStream.class).newInstance(stream);
-        } catch (IllegalAccessException | InstantiationException
-                | NoSuchMethodException | InvocationTargetException e) {
-            throw new RuntimeException(e);
-        }
-    }
-
-    public static Map<String, Class<? extends DatabaseImporter>> getImporters() {
-        return _importers;
-    }
+public interface DatabaseImporter {
+    void parse() throws DatabaseImporterException;
+    List<DatabaseEntry> convert() throws DatabaseImporterException;
+    boolean isEncrypted();
+    Context getContext();
 }
@@ -1,5 +1,6 @@
 package com.beemdevelopment.aegis.importers;

+import android.content.Context;
 import android.util.Xml;

 import org.json.JSONArray;
@@ -19,11 +20,11 @@ import com.beemdevelopment.aegis.otp.OtpInfoException;
 import com.beemdevelopment.aegis.otp.TotpInfo;
 import com.beemdevelopment.aegis.util.ByteInputStream;

-public class FreeOtpImporter extends DatabaseImporter {
+public class FreeOtpFileImporter extends DatabaseFileImporter {
    private List<XmlEntry> _xmlEntries;

-    public FreeOtpImporter(ByteInputStream stream) {
-        super(stream);
+    public FreeOtpFileImporter(Context context, ByteInputStream stream) {
+        super(context, stream);
    }

    private static class XmlEntry {
@@ -0,0 +1,124 @@
+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));
+    }
+}
@@ -11,9 +11,13 @@ import java.security.NoSuchAlgorithmException;
 public class HotpInfo extends OtpInfo {
    private long _counter;

-    public HotpInfo(byte[] secret) throws OtpInfoException {
+    public HotpInfo(byte[] secret, long counter) throws OtpInfoException {
        super(secret);
-        setCounter(0);
+        setCounter(counter);
+    }
+
+    public HotpInfo(byte[] secret) throws OtpInfoException {
+        this(secret, 0);
    }

    public HotpInfo(byte[] secret, String algorithm, int digits, long counter) throws OtpInfoException {
@@ -24,7 +28,7 @@ public class HotpInfo extends OtpInfo {
    @Override
    public String getOtp() {
        try {
-            return HOTP.generateOTP(getSecret(), getCounter(), getDigits(), false, -1);
+            return HOTP.generateOTP(getSecret(), getAlgorithm(true), getDigits(), getCounter());
        } catch (NoSuchAlgorithmException | InvalidKeyException e) {
            throw new RuntimeException();
        }
@@ -78,7 +78,8 @@ public abstract class OtpInfo implements Serializable {
    }

    public static boolean isDigitsValid(int digits) {
-        return digits == 6 || digits == 8;
+        // allow a max of 10 digits, as truncation will only extract 31 bits
+        return digits > 0 && digits <= 10;
    }

    public void setDigits(int digits) throws OtpInfoException {
@@ -5,6 +5,9 @@ import com.beemdevelopment.aegis.crypto.otp.TOTP;
 import org.json.JSONException;
 import org.json.JSONObject;

+import java.security.InvalidKeyException;
+import java.security.NoSuchAlgorithmException;
+
 public class TotpInfo extends OtpInfo {
    private int _period;

@@ -20,8 +23,11 @@ public class TotpInfo extends OtpInfo {

    @Override
    public String getOtp() {
-        String time = Long.toHexString(System.currentTimeMillis() / 1000 / getPeriod());
-        return TOTP.generateTOTP(getSecret(), time, getDigits(), getAlgorithm(true));
+        try {
+            return TOTP.generateOTP(getSecret(), getAlgorithm(true), getDigits(), getPeriod());
+        } catch (InvalidKeyException | NoSuchAlgorithmException e) {
+            throw new RuntimeException(e);
+        }
    }

    @Override
@@ -7,6 +7,7 @@ import android.view.WindowManager;
 import com.beemdevelopment.aegis.AegisApplication;
 import com.beemdevelopment.aegis.Preferences;
 import com.beemdevelopment.aegis.R;
+import com.beemdevelopment.aegis.Theme;

 public abstract class AegisActivity extends AppCompatActivity {
    private AegisApplication _app;
@@ -22,7 +23,7 @@ public abstract class AegisActivity extends AppCompatActivity {
        }

        // set the theme
-        setPreferredTheme(getPreferences().isDarkModeEnabled());
+        setPreferredTheme(Theme.fromInteger(getPreferences().getCurrentTheme()));
    }

    protected AegisApplication getApp() {
@@ -33,11 +34,19 @@ public abstract class AegisActivity extends AppCompatActivity {
        return _app.getPreferences();
    }

-    protected void setPreferredTheme(boolean darkMode) {
-        if (darkMode) {
-            setTheme(R.style.AppTheme_Dark);
-        } else {
-            setTheme(R.style.AppTheme);
+    protected void setPreferredTheme(Theme theme) {
+        switch (theme) {
+            case LIGHT:
+                setTheme(R.style.AppTheme);
+                break;
+
+            case DARK:
+                setTheme(R.style.AppTheme_Dark);
+                break;
+
+            case AMOLED:
+                setTheme(R.style.AppTheme_TrueBlack);
+                break;
        }
    }
 }
@@ -11,6 +11,7 @@ import android.view.View;
 import android.view.WindowManager;
 import android.widget.Button;
 import android.widget.EditText;
+import android.widget.NumberPicker;
 import android.widget.TextView;

 import com.beemdevelopment.aegis.crypto.KeyStoreHandle;
@@ -152,6 +153,24 @@ public class Dialogs {
        showSecureDialog(dialog);
    }

+    public static void showNumberPickerDialog(Activity activity, NumberInputListener listener) {
+        View view = activity.getLayoutInflater().inflate(R.layout.dialog_number_picker, null);
+        NumberPicker numberPicker = view.findViewById(R.id.numberPicker);
+        numberPicker.setMinValue(3);
+        numberPicker.setMaxValue(60);
+        numberPicker.setValue(new Preferences(activity.getApplicationContext()).getTapToRevealTime());
+        numberPicker.setWrapSelectorWheel(true);
+
+        AlertDialog dialog = new AlertDialog.Builder(activity)
+                .setTitle(R.string.set_number)
+                .setView(view)
+                .setPositiveButton(android.R.string.ok, (dialog1, which) ->
+                        listener.onNumberInputResult(numberPicker.getValue()))
+                .create();
+
+        showSecureDialog(dialog);
+    }
+
    public static void showFingerprintDialog(Activity activity, Dialogs.SlotListener listener) {
        View view = activity.getLayoutInflater().inflate(R.layout.dialog_fingerprint, null);
        TextView textFingerprint = view.findViewById(R.id.text_fingerprint);
@@ -196,6 +215,10 @@ public class Dialogs {
        showSecureDialog(dialog);
    }

+    public interface NumberInputListener {
+        void onNumberInputResult(int number);
+    }
+
    public interface TextInputListener {
        void onTextInputResult(String text);
    }
@@ -30,6 +30,7 @@ import android.widget.TableRow;

 import com.amulyakhare.textdrawable.TextDrawable;
 import com.avito.android.krop.KropView;
+import com.beemdevelopment.aegis.Theme;
 import com.beemdevelopment.aegis.encoding.Base32;
 import com.beemdevelopment.aegis.encoding.Base32Exception;
 import com.beemdevelopment.aegis.helpers.EditTextHelper;
@@ -74,6 +75,7 @@ public class EditEntryActivity extends AegisActivity {
    private EditText _textIssuer;
    private EditText _textPeriod;
    private EditText _textCounter;
+    private EditText _textDigits;
    private EditText _textSecret;

    private TableRow _rowPeriod;
@@ -81,7 +83,6 @@ public class EditEntryActivity extends AegisActivity {

    private Spinner _spinnerType;
    private Spinner _spinnerAlgo;
-    private Spinner _spinnerDigits;
    private Spinner _spinnerGroup;
    private List<String> _spinnerGroupList = new ArrayList<>();

@@ -116,6 +117,7 @@ public class EditEntryActivity extends AegisActivity {
        _textName = findViewById(R.id.text_name);
        _textIssuer = findViewById(R.id.text_issuer);
        _textPeriod = findViewById(R.id.text_period);
+        _textDigits = findViewById(R.id.text_digits);
        _rowPeriod = findViewById(R.id.row_period);
        _textCounter = findViewById(R.id.text_counter);
        _rowCounter = findViewById(R.id.row_counter);
@@ -124,8 +126,6 @@ public class EditEntryActivity extends AegisActivity {
        SpinnerHelper.fillSpinner(this, _spinnerType, R.array.otp_types_array);
        _spinnerAlgo = findViewById(R.id.spinner_algo);
        SpinnerHelper.fillSpinner(this, _spinnerAlgo, R.array.otp_algo_array);
-        _spinnerDigits = findViewById(R.id.spinner_digits);
-        SpinnerHelper.fillSpinner(this, _spinnerDigits, R.array.otp_digits_array);
        _spinnerGroup = findViewById(R.id.spinner_group);
        updateGroupSpinnerList();
        SpinnerHelper.fillSpinner(this, _spinnerGroup, _spinnerGroupList);
@@ -158,6 +158,7 @@ public class EditEntryActivity extends AegisActivity {
            } else {
                throw new RuntimeException();
            }
+            _textDigits.setText(Integer.toString(info.getDigits()));

            byte[] secretBytes = _origEntry.getInfo().getSecret();
            if (secretBytes != null) {
@@ -171,9 +172,6 @@ public class EditEntryActivity extends AegisActivity {
            String algo = _origEntry.getInfo().getAlgorithm(false);
            _spinnerAlgo.setSelection(getStringResourceIndex(R.array.otp_algo_array, algo), false);

-            String digits = Integer.toString(_origEntry.getInfo().getDigits());
-            _spinnerDigits.setSelection(getStringResourceIndex(R.array.otp_digits_array, digits), false);
-
            String group = _origEntry.getGroup();
            if (group != null) {
                int pos = _groups.contains(group) ? _groups.headSet(group).size() : -1;
@@ -256,15 +254,6 @@ public class EditEntryActivity extends AegisActivity {
        }
    }

-    @Override
-    protected void setPreferredTheme(boolean darkMode) {
-        if (darkMode) {
-            setTheme(R.style.AppTheme_Dark);
-        } else {
-            setTheme(R.style.AppTheme);
-        }
-    }
-
    private void openAdvancedSettings() {
        Animation fadeOut = new AlphaAnimation(1, 0);
        fadeOut.setInterpolator(new AccelerateInterpolator());
@@ -439,7 +428,7 @@ public class EditEntryActivity extends AegisActivity {

        int digits;
        try {
-            digits = Integer.parseInt(_spinnerDigits.getSelectedItem().toString());
+            digits = Integer.parseInt(_textDigits.getText().toString());
        } catch (NumberFormatException e) {
            throw new ParseException("Digits is not an integer.");
        }
@@ -1,6 +1,8 @@
 package com.beemdevelopment.aegis.ui;

 import android.Manifest;
+import android.animation.Animator;
+import android.animation.AnimatorListenerAdapter;
 import android.content.ClipData;
 import android.content.ClipboardManager;
 import android.content.Context;
@@ -12,6 +14,9 @@ import android.view.Menu;
 import android.view.MenuItem;
 import android.view.MotionEvent;
 import android.view.SubMenu;
+import android.view.View;
+import android.view.animation.AccelerateInterpolator;
+import android.view.animation.DecelerateInterpolator;
 import android.widget.LinearLayout;
 import android.widget.Toast;

@@ -31,6 +36,9 @@ import com.beemdevelopment.aegis.db.DatabaseManagerException;
 import com.beemdevelopment.aegis.db.DatabaseEntry;
 import com.beemdevelopment.aegis.db.DatabaseManager;

+import androidx.coordinatorlayout.widget.CoordinatorLayout;
+import androidx.interpolator.view.animation.FastOutSlowInInterpolator;
+
 public class MainActivity extends AegisActivity implements EntryListView.Listener {
    // activity request codes
    private static final int CODE_SCAN = 0;
@@ -67,6 +75,8 @@ public class MainActivity extends AegisActivity implements EntryListView.Listene
        _entryListView = (EntryListView) getSupportFragmentManager().findFragmentById(R.id.key_profiles);
        _entryListView.setListener(this);
        _entryListView.setShowAccountName(getPreferences().isAccountNameVisible());
+        _entryListView.setTapToReveal(getPreferences().isTapToRevealEnabled());
+        _entryListView.setTapToRevealTime(getPreferences().getTapToRevealTime());

        // set up the floating action button
        _fabMenu = findViewById(R.id.fab);
@@ -158,7 +168,11 @@ public class MainActivity extends AegisActivity implements EntryListView.Listene
            recreate();
        } else if (data.getBooleanExtra("needsRefresh", false)) {
            boolean showAccountName = getPreferences().isAccountNameVisible();
+            boolean tapToReveal = getPreferences().isTapToRevealEnabled();
+            int tapToRevealTime = getPreferences().getTapToRevealTime();
            _entryListView.setShowAccountName(showAccountName);
+            _entryListView.setTapToReveal(tapToReveal);
+            _entryListView.setTapToRevealTime(tapToRevealTime);
            _entryListView.refresh(true);
        }
    }
@@ -355,8 +369,10 @@ public class MainActivity extends AegisActivity implements EntryListView.Listene
            Dialogs.showDeleteEntryDialog(this, (d, which) -> {
                deleteEntry(entry);
                // update the filter list if the group no longer exists
-                if (!_db.getGroups().contains(entry.getGroup())) {
-                    updateGroupFilterMenu();
+                if (entry.getGroup() != null) {
+                    if (!_db.getGroups().contains(entry.getGroup())) {
+                        updateGroupFilterMenu();
+                    }
                }
            });
        });
@@ -493,4 +509,39 @@ public class MainActivity extends AegisActivity implements EntryListView.Listene
    public void onEntryChange(DatabaseEntry entry) {
        saveDatabase();
    }
+
+    private boolean isAnimating;
+
+    @Override
+    public void onScroll(int dx, int dy) {
+        if (dy > 0 && _fabMenu.getVisibility() == View.VISIBLE && !isAnimating) {
+            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();
+        }
+         else if (dy < 0 && _fabMenu.getVisibility() != View.VISIBLE && !isAnimating) {
+            _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();
+        }
+    }
 }
@@ -2,6 +2,9 @@ package com.beemdevelopment.aegis.ui;

 import android.os.Bundle;

+import com.beemdevelopment.aegis.R;
+import com.beemdevelopment.aegis.Theme;
+
 public class PreferencesActivity extends AegisActivity {
    private PreferencesFragment _fragment;

@@ -36,4 +39,21 @@ public class PreferencesActivity extends AegisActivity {
        outState.putParcelable("result", _fragment.getResult());
        super.onSaveInstanceState(outState);
    }
+
+    @Override
+    protected void setPreferredTheme(Theme theme) {
+        switch (theme) {
+            case LIGHT:
+                setTheme(R.style.AppTheme);
+                break;
+
+            case DARK:
+                setTheme(R.style.AppTheme_Dark);
+                break;
+
+            case AMOLED:
+                setTheme(R.style.AppTheme_TrueBlack_Preferences);
+                break;
+        }
+    }
 }
@@ -9,14 +9,22 @@ import android.net.Uri;
 import android.os.Bundle;
 import androidx.appcompat.app.AlertDialog;
 import androidx.preference.Preference;
+
+import android.view.Gravity;
+import android.view.View;
 import android.view.Window;
 import android.view.WindowManager;
+import android.widget.AdapterView;
 import android.widget.Toast;

+import com.beemdevelopment.aegis.Preferences;
+import com.beemdevelopment.aegis.Theme;
 import com.beemdevelopment.aegis.db.DatabaseFileCredentials;
 import com.beemdevelopment.aegis.helpers.FingerprintHelper;
 import com.beemdevelopment.aegis.helpers.PermissionHelper;
-import com.beemdevelopment.aegis.importers.AegisImporter;
+import com.beemdevelopment.aegis.importers.AegisFileImporter;
+import com.beemdevelopment.aegis.importers.DatabaseAppImporter;
+import com.beemdevelopment.aegis.importers.DatabaseFileImporter;
 import com.beemdevelopment.aegis.importers.DatabaseImporter;
 import com.beemdevelopment.aegis.importers.DatabaseImporterException;
 import com.beemdevelopment.aegis.ui.preferences.SwitchPreference;
@@ -46,6 +54,7 @@ import com.beemdevelopment.aegis.db.slots.PasswordSlot;
 import com.beemdevelopment.aegis.db.slots.Slot;
 import com.beemdevelopment.aegis.db.slots.SlotException;
 import com.beemdevelopment.aegis.db.slots.SlotList;
+import com.topjohnwu.superuser.Shell;

 public class PreferencesFragment extends PreferenceFragmentCompat {
    // activity request codes
@@ -63,8 +72,8 @@ public class PreferencesFragment extends PreferenceFragmentCompat {

    // this is used to keep a reference to a database converter
    // while the user provides credentials to decrypt it
-    private DatabaseImporter _importer;
-    private Class<? extends DatabaseImporter> _importerType;
+    private DatabaseFileImporter _importer;
+    private Class<? extends DatabaseFileImporter> _importerType;

    private SwitchPreference _encryptionPreference;
    private SwitchPreference _fingerprintPreference;
@@ -82,7 +91,33 @@ public class PreferencesFragment extends PreferenceFragmentCompat {
        // set the result intent in advance
        setResult(new Intent());

+        int currentTheme = app.getPreferences().getCurrentTheme();
        Preference darkModePreference = findPreference("pref_dark_mode");
+        darkModePreference.setSummary("Selected: " + Theme.getThemeName(currentTheme));
+        darkModePreference.setOnPreferenceClickListener(new Preference.OnPreferenceClickListener() {
+            @Override
+            public boolean onPreferenceClick(Preference preference) {
+                String[] themeNames = Theme.getThemeNames();
+                int checkedTheme = app.getPreferences().getCurrentTheme();
+
+                Dialogs.showSecureDialog(new AlertDialog.Builder(getActivity())
+                        .setTitle(getString(R.string.choose_theme))
+                        .setSingleChoiceItems(themeNames, checkedTheme, (dialog, which) -> {
+                            int i = ((AlertDialog) dialog).getListView().getCheckedItemPosition();
+                            app.getPreferences().setCurrentTheme(Theme.fromInteger(i));
+
+                            dialog.dismiss();
+
+                            _result.putExtra("needsRecreate", true);
+                            getActivity().recreate();
+                        })
+                        .setPositiveButton(android.R.string.ok, null)
+                        .create());
+
+                return true;
+            }
+        });
+
        darkModePreference.setOnPreferenceChangeListener(new Preference.OnPreferenceChangeListener() {
            @Override
            public boolean onPreferenceChange(Preference preference, Object newValue) {
@@ -92,8 +127,8 @@ public class PreferencesFragment extends PreferenceFragmentCompat {
            }
        });

-        Preference exportPreference = findPreference("pref_import");
-        exportPreference.setOnPreferenceClickListener(new Preference.OnPreferenceClickListener() {
+        Preference importPreference = findPreference("pref_import");
+        importPreference.setOnPreferenceClickListener(new Preference.OnPreferenceClickListener() {
            @Override
            public boolean onPreferenceClick(Preference preference) {
                onImport();
@@ -101,8 +136,18 @@ public class PreferencesFragment extends PreferenceFragmentCompat {
            }
        });

-        Preference importPreference = findPreference("pref_export");
-        importPreference.setOnPreferenceClickListener(new Preference.OnPreferenceClickListener() {
+        Preference importAppPreference = findPreference("pref_import_app");
+        importAppPreference.setOnPreferenceClickListener(new Preference.OnPreferenceClickListener() {
+            @Override
+            public boolean onPreferenceClick(Preference preference) {
+                onImportApp();
+                return true;
+            }
+        });
+
+
+        Preference exportPreference = findPreference("pref_export");
+        exportPreference.setOnPreferenceClickListener(new Preference.OnPreferenceClickListener() {
            @Override
            public boolean onPreferenceClick(Preference preference) {
                onExport();
@@ -129,6 +174,12 @@ public class PreferencesFragment extends PreferenceFragmentCompat {
            }
        });

+        Preference tapToRevealPreference = findPreference("pref_tap_to_reveal");
+        tapToRevealPreference.setOnPreferenceChangeListener((preference, newValue) -> {
+            _result.putExtra("needsRefresh", true);
+            return true;
+        });
+
        Preference screenPreference = findPreference("pref_secure_screen");
        screenPreference.setOnPreferenceChangeListener(new Preference.OnPreferenceChangeListener() {
            @Override
@@ -144,6 +195,23 @@ public class PreferencesFragment extends PreferenceFragmentCompat {
            }
        });

+        Preference tapToRevealTimePreference = findPreference("pref_tap_to_reveal_time");
+        tapToRevealTimePreference.setSummary(app.getPreferences().getTapToRevealTime() + " seconds");
+        tapToRevealTimePreference.setOnPreferenceClickListener(new Preference.OnPreferenceClickListener() {
+            @Override
+            public boolean onPreferenceClick(Preference preference) {
+                Dialogs.showNumberPickerDialog(getActivity(), new Dialogs.NumberInputListener() {
+                    @Override
+                    public void onNumberInputResult(int number) {
+                        app.getPreferences().setTapToRevealTime(number);
+                        tapToRevealTimePreference.setSummary(number + " seconds");
+                        _result.putExtra("needsRefresh", true);
+                    }
+                });
+                return false;
+            }
+        });
+
        _encryptionPreference = (SwitchPreference) findPreference("pref_encryption");
        _encryptionPreference.setOnPreferenceChangeListener(new Preference.OnPreferenceChangeListener() {
            @Override
@@ -277,7 +345,7 @@ public class PreferencesFragment extends PreferenceFragmentCompat {
            return;
        }

-        Map<String, Class<? extends DatabaseImporter>> importers = DatabaseImporter.getImporters();
+        Map<String, Class<? extends DatabaseFileImporter>> importers = DatabaseFileImporter.getImporters();
        String[] names = importers.keySet().toArray(new String[importers.size()]);

        Dialogs.showSecureDialog(new AlertDialog.Builder(getActivity())
@@ -296,6 +364,43 @@ public class PreferencesFragment extends PreferenceFragmentCompat {
                .create());
    }

+    private void onImportApp() {
+        Map<String, Class<? extends DatabaseAppImporter>> importers = DatabaseAppImporter.getImporters();
+        String[] names = importers.keySet().toArray(new String[importers.size()]);
+
+        Dialogs.showSecureDialog(new AlertDialog.Builder(getActivity())
+                .setTitle(getString(R.string.choose_application))
+                .setSingleChoiceItems(names, 0, null)
+                .setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
+                    public void onClick(DialogInterface dialog, int which) {
+                        int i = ((AlertDialog) dialog).getListView().getCheckedItemPosition();
+                        try {
+                            DatabaseAppImporter importer;
+                            // obtain the global root shell and close it immediately after we're done
+                            // TODO: find a way to use SuFileInputStream with Shell.newInstance()
+                            try (Shell shell = Shell.getShell()) {
+                                if (!shell.isRoot()) {
+                                    Toast.makeText(getActivity(), getString(R.string.root_error), Toast.LENGTH_SHORT).show();
+                                    return;
+                                }
+                                importer = DatabaseAppImporter.create(getContext(), importers.get(names[i]));
+                                importer.parse();
+                            } catch (IOException e) {
+                                Toast.makeText(getActivity(), getString(R.string.root_error), Toast.LENGTH_SHORT).show();
+                                return;
+                            }
+                            importDatabase(importer);
+                        } catch (DatabaseImporterException e) {
+                            e.printStackTrace();
+
+                            String msg = String.format("%s: %s", getString(R.string.parsing_file_error), e.getMessage());
+                            Toast.makeText(getActivity(), msg, Toast.LENGTH_SHORT).show();
+                        }
+                    }
+                })
+                .create());
+    }
+
    private void onImportDecryptResult(int resultCode, Intent data) {
        if (resultCode != Activity.RESULT_OK) {
            _importer = null;
@@ -303,7 +408,7 @@ public class PreferencesFragment extends PreferenceFragmentCompat {
        }

        DatabaseFileCredentials creds = (DatabaseFileCredentials) data.getSerializableExtra("creds");
-        ((AegisImporter)_importer).setCredentials(creds);
+        ((AegisFileImporter)_importer).setCredentials(creds);

        try {
            importDatabase(_importer);
@@ -337,15 +442,15 @@ public class PreferencesFragment extends PreferenceFragmentCompat {
        }

        try {
-            DatabaseImporter importer = DatabaseImporter.create(stream, _importerType);
+            DatabaseFileImporter importer = DatabaseFileImporter.create(getContext(), stream, _importerType);
            importer.parse();

            // special case to decrypt encrypted aegis databases
-            if (importer.isEncrypted() && importer instanceof AegisImporter) {
+            if (importer.isEncrypted() && importer instanceof AegisFileImporter) {
                _importer = importer;

                Intent intent = new Intent(getActivity(), AuthActivity.class);
-                intent.putExtra("slots", ((AegisImporter)_importer).getFile().getHeader().getSlots());
+                intent.putExtra("slots", ((AegisFileImporter)_importer).getFile().getHeader().getSlots());
                startActivityForResult(intent, CODE_IMPORT_DECRYPT);
                return;
            }
@@ -8,6 +8,7 @@ import android.view.Menu;
 import android.view.MenuItem;
 import android.widget.Toast;

+import com.beemdevelopment.aegis.Theme;
 import com.google.zxing.BarcodeFormat;
 import com.google.zxing.Result;
 import com.beemdevelopment.aegis.helpers.SquareFinderView;
@@ -57,7 +58,7 @@ public class ScannerActivity extends AegisActivity implements ZXingScannerView.R
    }

    @Override
-    protected void setPreferredTheme(boolean darkMode) {
+    protected void setPreferredTheme(Theme theme) {
        setTheme(R.style.AppTheme_Fullscreen);
    }

@@ -24,6 +24,8 @@ public class EntryAdapter extends RecyclerView.Adapter<EntryHolder> implements I
    private List<DatabaseEntry> _shownEntries;
    private static Listener _listener;
    private boolean _showAccountName;
+    private boolean _tapToReveal;
+    private int _tapToRevealTime;
    private String _groupFilter;

    // keeps track of the viewholders that are currently bound
@@ -40,6 +42,14 @@ public class EntryAdapter extends RecyclerView.Adapter<EntryHolder> implements I
        _showAccountName = showAccountName;
    }

+    public void setTapToReveal(boolean tapToReveal) {
+        _tapToReveal = tapToReveal;
+    }
+
+    public void setTapToRevealTime(int number) {
+        _tapToRevealTime = number;
+    }
+
    public void addEntry(DatabaseEntry entry) {
        _entries.add(entry);
        if (!isEntryFiltered(entry)) {
@@ -188,7 +198,8 @@ public class EntryAdapter extends RecyclerView.Adapter<EntryHolder> implements I
    public void onBindViewHolder(final EntryHolder holder, int position) {
        DatabaseEntry entry = _shownEntries.get(position);
        boolean showProgress = !isPeriodUniform() && entry.getInfo() instanceof TotpInfo;
-        holder.setData(entry, _showAccountName, showProgress);
+        holder.setData(entry, _showAccountName, showProgress, _tapToReveal);
+        holder.setTapToRevealTime(_tapToRevealTime);
        if (showProgress) {
            holder.startRefreshLoop();
        }
@@ -197,7 +208,11 @@ public class EntryAdapter extends RecyclerView.Adapter<EntryHolder> implements I
            @Override
            public void onClick(View v) {
                int position = holder.getAdapterPosition();
-                _listener.onEntryClick(_shownEntries.get(position));
+                if (_tapToReveal && holder.isCodeHidden()) {
+                    holder.revealCode();
+                } else {
+                    _listener.onEntryClick(_shownEntries.get(position));
+                }
            }
        });
        holder.itemView.setOnLongClickListener(new View.OnLongClickListener() {
@@ -212,7 +227,7 @@ public class EntryAdapter extends RecyclerView.Adapter<EntryHolder> implements I
            public void onClick(View v) {
                // this will only be called if the entry is of type HotpInfo
                try {
-                    ((HotpInfo)entry.getInfo()).incrementCounter();
+                    ((HotpInfo) entry.getInfo()).incrementCounter();
                } catch (OtpInfoException e) {
                    throw new RuntimeException(e);
                }
@@ -17,6 +17,7 @@ import com.beemdevelopment.aegis.otp.TotpInfo;

 import com.beemdevelopment.aegis.R;
 import com.beemdevelopment.aegis.db.DatabaseEntry;
+import android.os.Handler;

 public class EntryHolder extends RecyclerView.ViewHolder {
    private TextView _profileName;
@@ -26,12 +27,20 @@ public class EntryHolder extends RecyclerView.ViewHolder {
    private DatabaseEntry _entry;
    private ImageView _buttonRefresh;

+    private View _currentView;
+
+    private boolean _hidden;
+    private int _tapToRevealTime;
+
    private PeriodProgressBar _progressBar;

    private UiRefresher _refresher;
+    private Handler _hiddenHandler;

    public EntryHolder(final View view) {
        super(view);
+        _currentView = view;
+
        _profileName = view.findViewById(R.id.profile_account_name);
        _profileCode = view.findViewById(R.id.profile_code);
        _profileIssuer = view.findViewById(R.id.profile_issuer);
@@ -45,7 +54,10 @@ public class EntryHolder extends RecyclerView.ViewHolder {
        _refresher = new UiRefresher(new UiRefresher.Listener() {
            @Override
            public void onRefresh() {
-                refreshCode();
+                if (!isCodeHidden()) {
+                    refreshCode();
+                }
+
                _progressBar.refresh();
            }

@@ -54,10 +66,13 @@ public class EntryHolder extends RecyclerView.ViewHolder {
                return ((TotpInfo)_entry.getInfo()).getMillisTillNextRotation();
            }
        });
+
+        _hiddenHandler = new Handler();
    }

-    public void setData(DatabaseEntry entry, boolean showAccountName, boolean showProgress) {
+    public void setData(DatabaseEntry entry, boolean showAccountName, boolean showProgress, boolean hidden) {
        _entry = entry;
+        _hidden = hidden;

        // only show the progress bar if there is no uniform period and the entry type is TotpInfo
        _progressBar.setVisibility(showProgress ? View.VISIBLE : View.GONE);
@@ -83,7 +98,18 @@ public class EntryHolder extends RecyclerView.ViewHolder {
            _profileDrawable.setImageDrawable(drawable);
        }

-        refreshCode();
+        // cancel any scheduled hideCode calls
+        _hiddenHandler.removeCallbacksAndMessages(null);
+
+        if (_hidden) {
+            hideCode();
+        } else {
+            refreshCode();
+        }
+    }
+
+    public void setTapToRevealTime(int number) {
+        _tapToRevealTime = number;
    }

    public void setOnRefreshClickListener(View.OnClickListener listener) {
@@ -99,7 +125,31 @@ public class EntryHolder extends RecyclerView.ViewHolder {
    }

    public void refreshCode() {
+        if (!isCodeHidden()) {
+            updateCode();
+        }
+    }
+
+    private void updateCode() {
        String otp = _entry.getInfo().getOtp();
-        _profileCode.setText(otp.substring(0, otp.length() / 2) + " " + otp.substring(otp.length() / 2));
+        String text = otp.substring(0, (otp.length() / 2)
+                + (otp.length() % 2)) + " "
+                + otp.substring(otp.length() / 2);
+        _profileCode.setText(text);
+    }
+
+    public void revealCode() {
+        updateCode();
+        _hiddenHandler.postDelayed(this::hideCode, _tapToRevealTime * 1000);
+        _hidden = false;
+    }
+
+    private void hideCode() {
+        _profileCode.setText(_currentView.getContext().getResources().getString(R.string.tap_to_reveal));
+        _hidden = true;
+    }
+
+    public boolean isCodeHidden() {
+        return _hidden;
    }
 }
@@ -1,8 +1,9 @@
 package com.beemdevelopment.aegis.ui.views;

 import android.content.Context;
-import android.graphics.PorterDuff;
 import android.os.Bundle;
+
+import androidx.annotation.NonNull;
 import androidx.fragment.app.Fragment;
 import androidx.recyclerview.widget.LinearLayoutManager;
 import androidx.recyclerview.widget.RecyclerView;
@@ -33,6 +34,8 @@ public class EntryListView extends Fragment implements EntryAdapter.Listener {

    private UiRefresher _refresher;

+    private RecyclerView.OnScrollChangeListener _onScrollListener;
+
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
@@ -45,11 +48,17 @@ public class EntryListView extends Fragment implements EntryAdapter.Listener {
        View view = inflater.inflate(R.layout.fragment_entry_list_view, container, false);

        _progressBar = view.findViewById(R.id.progressBar);
-        int primaryColorId = getResources().getColor(R.color.colorPrimary);
-        _progressBar.getProgressDrawable().setColorFilter(primaryColorId, PorterDuff.Mode.SRC_IN);

        // set up the recycler view
        _rvKeyProfiles = view.findViewById(R.id.rvKeyProfiles);
+        _rvKeyProfiles.addOnScrollListener(new RecyclerView.OnScrollListener() {
+            @Override
+            public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
+                super.onScrolled(recyclerView, dx, dy);
+                _listener.onScroll(dx, dy);
+            }
+        });
+
        LinearLayoutManager mLayoutManager = new LinearLayoutManager(view.getContext());
        _rvKeyProfiles.setLayoutManager(mLayoutManager);
        _touchCallback = new SimpleItemTouchHelperCallback(_adapter);
@@ -151,6 +160,14 @@ public class EntryListView extends Fragment implements EntryAdapter.Listener {
        _adapter.setShowAccountName(showAccountName);
    }

+    public void setTapToReveal(boolean tapToReveal) {
+        _adapter.setTapToReveal(tapToReveal);
+    }
+
+    public void setTapToRevealTime(int number) {
+        _adapter.setTapToRevealTime(number);
+    }
+
    public void addEntry(DatabaseEntry entry) {
        _adapter.addEntry(entry);
        checkPeriodUniformity();
@@ -191,5 +208,7 @@ public class EntryListView extends Fragment implements EntryAdapter.Listener {
        void onEntryMove(DatabaseEntry entry1, DatabaseEntry entry2);
        void onEntryDrop(DatabaseEntry entry);
        void onEntryChange(DatabaseEntry entry);
+        void onScroll(int dx, int dy);
+
    }
 }
@@ -0,0 +1,10 @@
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:id="@android:id/progress">
+        <clip>
+            <shape>
+                <solid android:color="@color/colorAccent"/>
+            </shape>
+        </clip>
+    </item>
+
+</layer-list>
@@ -5,6 +5,7 @@
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:fitsSystemWindows="true"
+    android:background="?attr/background"
    tools:context="com.beemdevelopment.aegis.com.impy.aegis.ui.AuthActivity">
    <LinearLayout
        android:orientation="vertical"
@@ -2,6 +2,8 @@
 <ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
+    android:background="?attr/background"
+
    android:layout_height="match_parent">

    <LinearLayout
@@ -171,9 +173,8 @@
                    <androidx.appcompat.widget.AppCompatSpinner
                        android:id="@+id/spinner_type"
                        android:layout_width="0dp"
-                        android:layout_height="wrap_content"
+                        android:layout_height="match_parent"
                        android:layout_weight="4"
-                        android:layout_marginLeft="-6dp"
                        android:paddingRight="6dp"
                        android:gravity="left"
                        android:layout_gravity="left"
@@ -182,23 +183,19 @@
                    <androidx.appcompat.widget.AppCompatSpinner
                        android:id="@+id/spinner_algo"
                        android:layout_width="0dp"
-                        android:layout_height="wrap_content"
+                        android:layout_height="match_parent"
                        android:layout_weight="4"
-                        android:layout_marginLeft="-6dp"
                        android:paddingRight="6dp"
-                        android:textAlignment="center"
                        android:backgroundTint="#949494"
                        style="@style/Base.Widget.AppCompat.Spinner.Underlined"/>
-                    <androidx.appcompat.widget.AppCompatSpinner
-                        android:id="@+id/spinner_digits"
+                    <EditText
+                        android:id="@+id/text_digits"
+                        android:hint="@string/digits"
                        android:layout_width="0dp"
                        android:layout_height="wrap_content"
-                        android:layout_marginLeft="-6dp"
                        android:paddingRight="6dp"
                        android:layout_weight="3"
-                        android:textAlignment="center"
-                        android:backgroundTint="#949494"
-                        style="@style/Base.Widget.AppCompat.Spinner.Underlined"/>
+                        android:backgroundTint="#949494"/>
                </LinearLayout>

            </TableRow>
@@ -5,6 +5,7 @@
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:fitsSystemWindows="true"
+    android:background="?attr/background"
    tools:context="com.beemdevelopment.aegis.com.impy.aegis.ui.GroupManagerActivity">

    <androidx.core.widget.NestedScrollView
@@ -5,6 +5,8 @@
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:fitsSystemWindows="true"
+    android:background="?attr/background"
+
    tools:context="com.beemdevelopment.aegis.com.impy.aegis.ui.SlotManagerActivity">


@@ -2,6 +2,7 @@
 <LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
+    android:background="?attr/background"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">
    <LinearLayout
@@ -11,7 +12,7 @@
        android:id="@+id/copy_button"
        android:clickable="true"
        android:focusable="true"
-        android:background="?attr/selectableItemBackground"
+        android:background="?attr/background"
        android:orientation="horizontal">
        <ImageView
            android:layout_width="wrap_content"
@@ -31,7 +32,7 @@
        android:padding="16dp"
        android:clickable="true"
        android:focusable="true"
-        android:background="?attr/selectableItemBackground"
+        android:background="?attr/background"
        android:id="@+id/edit_button"
        android:orientation="horizontal">
        <ImageView
@@ -53,7 +54,7 @@
        android:id="@+id/delete_button"
        android:clickable="true"
        android:focusable="true"
-        android:background="?attr/selectableItemBackground"
+
        android:orientation="horizontal">
        <ImageView
            android:layout_width="wrap_content"
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:layout_marginTop="20dp"
+    android:orientation="horizontal">
+
+    <NumberPicker
+        android:id="@+id/numberPicker"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:layout_weight="1"/>
+</LinearLayout>
@@ -10,6 +10,7 @@
        style="?android:attr/progressBarStyleHorizontal"
        android:layout_width="match_parent"
        android:layout_height="4dp"
+        android:progressDrawable="@drawable/progress_horizontal"
        android:id="@+id/progressBar"
        android:visibility="gone"
        android:max="1000"/>
@@ -35,6 +35,7 @@
    <color name="hint_text_dark">#a7a7a7</color>
    <color name="secondary_text_dark">#FF5252</color>
    <color name="background_dark">#212121</color>
+    <color name="background_true_dark">#000000</color>

    <color name="warning_color">#f4511e</color>
    <color name="hint_color">#42000000</color>
@@ -11,20 +11,24 @@
    <string name="title_activity_intro">IntroActivity</string>

    <string name="settings">Preferences</string>
-    <string name="pref_dark_mode_title">Dark mode</string>
-    <string name="pref_dark_mode_summary">Enable this to use darker colors</string>
+    <string name="pref_select_theme_title">Theme</string>
    <string name="pref_account_name_title">Show the account name</string>
    <string name="pref_account_name_summary">Enable this to show the account name next to the issuer</string>
    <string name="pref_timeout_title">Timeout</string>
    <string name="pref_timeout_summary">Automatically lock the database after %1$s seconds of inactivity</string>
    <string name="pref_slots_title">Key slots</string>
    <string name="pref_slots_summary">Manage the list of keys that can decrypt the database</string>
-    <string name="pref_import_title">Import</string>
-    <string name="pref_import_summary">Import a database</string>
+    <string name="pref_import_file_title">Import from file</string>
+    <string name="pref_import_file_summary">Import a database from a file</string>
+    <string name="pref_import_app_title">Import from app</string>
+    <string name="pref_import_app_summary">Import a database from an app (requires root access)</string>
    <string name="pref_export_title">Export</string>
    <string name="pref_export_summary">Export the database</string>
    <string name="pref_secure_screen_title">Screen security</string>
    <string name="pref_secure_screen_summary">Block screenshots and other attempts to capture the screen within the app</string>
+    <string name="pref_tap_to_reveal_title">Tap to reveal</string>
+    <string name="pref_tap_to_reveal_summary">Tokens will be hidden by default. Tap on the tokens to reveal code.</string>
+    <string name="pref_tap_to_reveal_time_title">Timeout for tap to reveal</string>
    <string name="pref_encryption_title">Encryption</string>
    <string name="pref_encryption_summary">Encrypt the database and unlock it with a password or fingerprint</string>
    <string name="pref_fingerprint_title">Fingerprint</string>
@@ -48,6 +52,7 @@
    <string name="authentication">Unlock the vault</string>
    <string name="set_password">Please enter a password</string>
    <string name="set_group">Please enter a group name</string>
+    <string name="set_number">Please enter a number</string>
    <string name="set_password_confirm">Please confirm the password</string>
    <string name="invalidated_fingerprint">A change in your device\'s security settings has been detected. Please go to \"Settings -> Fingerprint\" and re-add your fingerprint.</string>

@@ -68,17 +73,13 @@
        <item>SHA512</item>
    </string-array>

-    <string-array name="otp_digits_array">
-        <item>6</item>
-        <item>8</item>
-    </string-array>
-
    <!-- TODO: Remove or change this placeholder text -->
    <string name="hello_blank_fragment">Hello blank fragment</string>
    <string name="unlock">Unlock</string>
    <string name="advanced">Advanced</string>
    <string name="seconds">seconds</string>
    <string name="counter">Counter</string>
+    <string name="digits">Digits</string>
    <string name="secret">Secret</string>
    <string name="scan">Scan QR code</string>
    <string name="enter_manually">Enter manually</string>
@@ -118,9 +119,11 @@
    <string name="encrypting_error">An error occurred while enabling encryption</string>
    <string name="permission_denied">Permission denied</string>
    <string name="choose_application">Select the application you\'d like to import a database from</string>
+    <string name="choose_theme">Select your desired theme</string>
    <string name="parsing_file_error">An error occurred while trying to parse the file</string>
    <string name="file_not_found">Error: File not found</string>
    <string name="reading_file_error">An error occurred while trying to read the file</string>
+    <string name="root_error">Error: unable to obtain root access</string>
    <string name="imported_entries_count">Imported %d entries</string>
    <string name="exporting_database_error">An error occurred while trying to export the database</string>
    <string name="export_database_location">The database has been exported to:</string>
@@ -147,4 +150,5 @@
    <string name="group_name_hint">Group name</string>
    <string name="preference_manage_groups">Edit groups</string>
    <string name="preference_manage_groups_summary">Manage and delete your groups here</string>
+    <string name="tap_to_reveal">Hidden</string>
 </resources>
@@ -66,6 +66,20 @@
        <item name="swirl_ridgeColor">@color/colorSwirlPrimaryDark</item>
        <item name="swirl_errorColor">@color/colorSwirlErrorDark</item>
    </style>
+
+    <style name="AppTheme.TrueBlack" parent="AppTheme.Dark">
+        <item name="colorPrimary">@color/background_true_dark</item>
+        <item name="cardBackground">@color/background_true_dark</item>
+        <item name="background">@color/background_true_dark</item>
+        <item name="bottomSheetDialogTheme">@style/Theme.Design.BottomSheetDialog</item>
+        <item name="colorPrimaryDark">@color/background_true_dark</item>
+        <item name="preferenceTheme">@style/PreferenceThemeOverlay.v14.Material</item>
+    </style>
+
+    <style name="AppTheme.TrueBlack.Preferences" parent="AppTheme.TrueBlack">
+        <item name="android:windowBackground">@color/background_true_dark</item>
+    </style>
+
    <style name="AppTheme.Dark.NoActionBar">
        <item name="windowActionBar">false</item>
        <item name="windowNoTitle">true</item>
@@ -7,11 +7,10 @@
    <PreferenceCategory
        android:title="Appearance"
        app:iconSpaceReserved="false">
-        <androidx.preference.SwitchPreferenceCompat
+        <Preference
            android:defaultValue="false"
            android:key="pref_dark_mode"
-            android:title="@string/pref_dark_mode_title"
-            android:summary="@string/pref_dark_mode_summary"
+            android:title="@string/pref_select_theme_title"
            app:iconSpaceReserved="false"/>

        <androidx.preference.SwitchPreferenceCompat
@@ -37,6 +36,19 @@
            android:title="@string/pref_secure_screen_title"
            android:summary="@string/pref_secure_screen_summary"
            app:iconSpaceReserved="false"/>
+        <androidx.preference.SwitchPreferenceCompat
+            android:defaultValue="false"
+            android:key="pref_tap_to_reveal"
+            android:title="@string/pref_tap_to_reveal_title"
+            android:summary="@string/pref_tap_to_reveal_summary"
+            app:iconSpaceReserved="false"/>
+
+        <Preference
+            android:key="pref_tap_to_reveal_time"
+            android:title="@string/pref_tap_to_reveal_time_title"
+            android:dependency="pref_tap_to_reveal"
+            app:iconSpaceReserved="false"/>
+
        <!--<EditTextPreference
            android:key="pref_timeout"
            android:title="@string/pref_timeout_title"
@@ -78,8 +90,13 @@
        app:iconSpaceReserved="false">
        <Preference
            android:key="pref_import"
-            android:title="@string/pref_import_title"
-            android:summary="@string/pref_import_summary"
+            android:title="@string/pref_import_file_title"
+            android:summary="@string/pref_import_file_summary"
+            app:iconSpaceReserved="false"/>
+        <Preference
+            android:key="pref_import_app"
+            android:title="@string/pref_import_app_title"
+            android:summary="@string/pref_import_app_summary"
            app:iconSpaceReserved="false"/>
        <Preference
            android:key="pref_export"
@@ -12,22 +12,22 @@ import static org.junit.Assert.*;
 public class HOTPTest {
    // https://tools.ietf.org/html/rfc4226#page-32
    private final String[] _vectors = {
-        "755224", "287082",
-        "359152", "969429",
-        "338314", "254676",
-        "287922", "162583",
-        "399871", "520489"
+            "755224", "287082",
+            "359152", "969429",
+            "338314", "254676",
+            "287922", "162583",
+            "399871", "520489"
    };

-    private final byte[] _secret = new byte[] {
-        0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x30,
-        0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x30
+    private final byte[] _secret = new byte[]{
+            0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x30,
+            0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x30
    };

    @Test
    public void vectorsMatch() throws InvalidKeyException, NoSuchAlgorithmException {
        for (int i = 0; i < _vectors.length; i++) {
-            String otp = HOTP.generateOTP(_secret, i, 6, false, -1);
+            String otp = HOTP.generateOTP(_secret, "HmacSHA1", 6, i);
            assertEquals(_vectors[i], otp);
        }
    }
@@ -3,31 +3,49 @@ package com.beemdevelopment.aegis;
 import org.junit.Test;

 import com.beemdevelopment.aegis.crypto.otp.TOTP;
+import com.beemdevelopment.aegis.encoding.Hex;
+import com.beemdevelopment.aegis.encoding.HexException;
+
+import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
+import java.security.InvalidKeyException;
+import java.security.NoSuchAlgorithmException;

 import static org.junit.Assert.*;

 public class TOTPTest {
+    private static class Vector {
+        public long Time;
+        public String OTP;
+        public String Algo;
+
+        public Vector(long time, String otp, String algo) {
+            Time = time;
+            OTP = otp;
+            Algo = algo;
+        }
+    }
+
    // https://tools.ietf.org/html/rfc6238#appendix-B
-    private final String[][] _vectors = {
-            // time, OPT, algorithm
-            {"0000000000000001", "94287082", "HmacSHA1"},
-            {"0000000000000001", "46119246", "HmacSHA256"},
-            {"0000000000000001", "90693936", "HmacSHA512"},
-            {"00000000023523EC", "07081804", "HmacSHA1"},
-            {"00000000023523EC", "68084774", "HmacSHA256"},
-            {"00000000023523EC", "25091201", "HmacSHA512"},
-            {"00000000023523ED", "14050471", "HmacSHA1"},
-            {"00000000023523ED", "67062674", "HmacSHA256"},
-            {"00000000023523ED", "99943326", "HmacSHA512"},
-            {"000000000273EF07", "89005924", "HmacSHA1"},
-            {"000000000273EF07", "91819424", "HmacSHA256"},
-            {"000000000273EF07", "93441116", "HmacSHA512"},
-            {"0000000003F940AA", "69279037", "HmacSHA1"},
-            {"0000000003F940AA", "90698825", "HmacSHA256"},
-            {"0000000003F940AA", "38618901", "HmacSHA512"},
-            {"0000000027BC86AA", "65353130", "HmacSHA1"},
-            {"0000000027BC86AA", "77737706", "HmacSHA256"},
-            {"0000000027BC86AA", "47863826", "HmacSHA512"}
+    private final Vector[] _vectors = {
+            new Vector(59, "94287082", "HmacSHA1"),
+            new Vector(59, "46119246", "HmacSHA256"),
+            new Vector(59, "90693936", "HmacSHA512"),
+            new Vector(1111111109, "07081804", "HmacSHA1"),
+            new Vector(1111111109, "68084774", "HmacSHA256"),
+            new Vector(1111111109, "25091201", "HmacSHA512"),
+            new Vector(1111111111, "14050471", "HmacSHA1"),
+            new Vector(1111111111, "67062674", "HmacSHA256"),
+            new Vector(1111111111, "99943326", "HmacSHA512"),
+            new Vector(1234567890, "89005924", "HmacSHA1"),
+            new Vector(1234567890, "91819424", "HmacSHA256"),
+            new Vector(1234567890, "93441116", "HmacSHA512"),
+            new Vector(2000000000, "69279037", "HmacSHA1"),
+            new Vector(2000000000, "90698825", "HmacSHA256"),
+            new Vector(2000000000, "38618901", "HmacSHA512"),
+            new Vector(20000000000L, "65353130", "HmacSHA1"),
+            new Vector(20000000000L, "77737706", "HmacSHA256"),
+            new Vector(20000000000L, "47863826", "HmacSHA512")
    };

    private final byte[] _seed = new byte[]{
@@ -50,11 +68,11 @@ public class TOTPTest {
    };

    @Test
-    public void vectorsMatch() {
-        for (String[] vector : _vectors) {
+    public void vectorsMatch() throws NoSuchAlgorithmException, InvalidKeyException, HexException {
+        for (Vector vector : _vectors) {
            byte[] seed;

-            switch (vector[2]) {
+            switch (vector.Algo) {
                case "HmacSHA1":
                    seed = _seed;
                    break;
@@ -69,8 +87,8 @@ public class TOTPTest {
                    return;
            }

-            String otp = TOTP.generateTOTP(seed, vector[0], 8, vector[2]);
-            assertEquals(vector[1], otp);
+            String otp = TOTP.generateOTP(seed, vector.Algo, 8, 30, vector.Time);
+            assertEquals(vector.OTP, otp);
        }
    }
 }
@@ -6,7 +6,7 @@ buildscript {
        google()
    }
    dependencies {
-        classpath 'com.android.tools.build:gradle:3.3.1'
+        classpath 'com.android.tools.build:gradle:3.3.2'

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
@@ -0,0 +1,39 @@
+Aegis Authenticator is a free, secure and open source app to manage your
+2-step verification tokens for your online services.
+
+'''Encryption'''
+All of your one-time passwords are stored in a vault. If you choose
+to set a password, which is highly recommended, the vault will be encrypted
+using AES-256. If someone with malicious intent gets a hold of the vault file,
+it’s impossible for them to retrieve the contents without knowing the password.
+
+'''Fingerprint unlock'''
+Entering your password each time you need access to a
+one-time password can be cumbersome. Fortunately, you can also enable
+fingerprint unlock if your device has a fingerprint scanner.
+
+'''Compatibility'''
+Aegis supports the HOTP and TOTP algorithms. These two algorithms are
+industry-standard and widely supported, making Aegis compatible with
+thousands of services. Some examples are: Google, GitHub, Dropbox, Facebook
+and Instagram.
+
+It is also compatible with Google Authenticator. Any website that shows a QR
+code for Google Authenticator also works with Aegis.
+
+'''Groups'''
+Have a lot of one-time passwords? Add them to custom groups for easier
+access. Personal, Work and Social can each get their own group.
+
+'''Backups'''
+To make sure you will never lose access to your online accounts Aegis
+Authenticator supports exporting your vault which you can import onto a new
+device. Aegis Authenticator also allows you to import AndOTP and FreeOTP
+databases so switching to Aegis is made easier for you.
+
+'''Open source and license'''
+Aegis Authenticator is open source (licensed under GPL v3) and the source code
+can be found here: http://github.com/beemdevelopment/Aegis
+
+'''Attribution'''
+The icon is largely based on a design by Freepik from Flaticon.
@@ -0,0 +1 @@
+Free, secure and open source 2FA app to manage tokens for your online services
@@ -0,0 +1 @@
+Aegis Authenticator
Author	SHA1	Message	Date
Michael Schättgen	ede9f93a59	Release v0.2.2	2019-03-28 13:46:39 +01:00
Michael Schättgen	c6c0eb88e9	Fix true black theme in all activities Closes #32. Also tested on API 19.	2019-03-28 13:46:33 +01:00
Michael Schättgen	f929790be6	Fix metadata path by adding android folder Closes #36	2019-03-28 13:46:07 +01:00
Michael Schättgen	a4ff9d6d31	Fix crash in API 19	2019-03-28 13:45:43 +01:00
Michael SchättgenandGitHub	a21d28a91f	Update README.md	2019-03-28 10:47:24 +00:00
Michael Schättgen	f7c32bc28b	Improve theme based texts	2019-03-28 01:27:07 +01:00
Michael Schättgen	59c0ca947d	Add workaround for amoled themed preferences	2019-03-28 01:08:44 +01:00
Michael Schättgen	a7ac1adb80	Convert dark mode preference to select theme preference	2019-03-28 00:56:29 +01:00
Michael Schättgen	17204cc026	Add status bar color for true dark theme	2019-03-28 00:54:50 +01:00
Michael Schättgen	cf4aecbd3e	Refactor dark mode to allow multiple themes	2019-03-28 00:54:30 +01:00
Michael Schättgen	9baaf824c6	Start working on amoled / true black theme #32	2019-03-28 00:15:02 +01:00
Michael Schättgen	eb172fc54e	Merge branch 'master' of https://github.com/alexbakker/Aegis	2019-03-27 21:18:26 +01:00
Michael Schättgen	e99762b814	Change global progressbar color to improve visibility As part of #34	2019-03-27 21:18:16 +01:00
Alexander Bakker	6b1d4a60e3	Credit Freepik from Flaticon for the icon	2019-03-27 12:32:40 +01:00
Alexander Bakker	a540b3cfee	Add icon to fastlane metadata	2019-03-27 12:14:08 +01:00
Michael SchättgenandGitHub	b0481d6b30	Update README.md	2019-03-27 11:07:03 +00:00
Alexander Bakker	0c315c53e5	Add .idea/ and release/ to .gitignore	2019-03-27 01:03:55 +01:00
Alexander Bakker	75c37a454f	Release v0.2.1	2019-03-27 00:51:44 +01:00
Michael Schättgen	554d7e17be	Fix NullPointerException when deleting tokens	2019-03-27 00:47:39 +01:00
Alexander Bakker	52e4c5cd51	Release v0.2	2019-03-26 23:32:25 +01:00
Alexander Bakker	14b8ba89c8	Fix the last couple of issues with tap-to-reveal	2019-03-26 22:10:29 +01:00
Michael SchättgenandGitHub	c9b312a398	Update README.md	2019-03-26 12:51:15 +00:00
Alexander Bakker	9fabd7fe10	Prepare fastlane structure for F-Droid	2019-03-26 09:03:13 +01:00
Alexander Bakker	7f1cea4202	Remove accidentally committed file	2019-03-26 01:03:19 +01:00
Alexander Bakker	29aa81765b	Rewrite the HOTP/TOTP code to be more compact and support more digits	2019-03-26 00:59:57 +01:00
Alexander Bakker	066a7447c0	Support an arbitrary number of digits	2019-03-26 00:59:51 +01:00
Alexander Bakker	4cf1a5efe4	Acknowledge libsu in the README	2019-03-26 00:57:27 +01:00
Michael Schättgen	a5778e6b38	Show/Hide action button depending on scroll direction	2019-03-26 00:53:32 +01:00
Michael Schättgen	cebf15ba44	Add ability to adjust tap to reveal timeout	2019-03-26 00:06:39 +01:00
Michael Schättgen	16bf195ac0	Fix bug in codeIsRevealed when recycling entries	2019-03-25 21:49:50 +01:00
Michael Schättgen	d57fc8b79a	Add tap to reveal preference to results	2019-03-25 21:40:08 +01:00
Michael Schättgen	0e6828fae1	Add ability to tap to reveal codes 👀	2019-03-25 21:32:29 +01:00
Alexander Bakker	ad1d3f04a6	Add support for importing from Google Authenticator Close #29	2019-03-23 22:43:24 +01:00
Alexander Bakker	b33c9383fe	Update gradle	2019-03-23 18:16:32 +01:00
				`@@ -0,0 +1 @@`
				`Free, secure and open source 2FA app to manage tokens for your online services`