Integrated ZXing Barcode scanner, added functionality to share/receive configurations via QR-Code, added option to generate configuration from passphrase

CHANGELOG.txt

@@ -1,8 +1,10 @@
 CHANGELOG ENIGMANDROID
 v0.1.9-not-yet-released<
+*Added option to share/receive configurations via QR-Code (ZXing Barcode Scanner)
+*Prevent user from setting incomplete reflector wiring
+*Add option to generate configuration from passphrase
 *TODO: Add Enigma Z (Probably wont happen due to lack of information :/)
 *TODO: Add multi-Enigma (select any rotor/reflector etc. Probably wont happen too soon)
-*TODO: Enigma configuration from/to seed (text or qr code)
 
 v0.1.8-27.09.2015<
 *Added Enigma G31

app/src/main/java/com/google/zxing/integration/android/IntentIntegrator.java

@@ -0,0 +1,506 @@
+/*
+ * Copyright 2009 ZXing authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.zxing.integration.android;
+
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import android.app.Activity;
+import android.app.AlertDialog;
+import android.app.Fragment;
+import android.content.ActivityNotFoundException;
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.content.pm.PackageManager;
+import android.content.pm.ResolveInfo;
+import android.net.Uri;
+import android.os.Bundle;
+import android.util.Log;
+
+/**
+ * <p>A utility class which helps ease integration with Barcode Scanner via {@link Intent}s. This is a simple
+ * way to invoke barcode scanning and receive the result, without any need to integrate, modify, or learn the
+ * project's source code.</p>
+ *
+ * <h2>Initiating a barcode scan</h2>
+ *
+ * <p>To integrate, create an instance of {@code IntentIntegrator} and call {@link #initiateScan()} and wait
+ * for the result in your app.</p>
+ *
+ * <p>It does require that the Barcode Scanner (or work-alike) application is installed. The
+ * {@link #initiateScan()} method will prompt the user to download the application, if needed.</p>
+ *
+ * <p>There are a few steps to using this integration. First, your {@link Activity} must implement
+ * the method {@link Activity#onActivityResult(int, int, Intent)} and include a line of code like this:</p>
+ *
+ * <pre>{@code
+ * public void onActivityResult(int requestCode, int resultCode, Intent intent) {
+ *   IntentResult scanResult = IntentIntegrator.parseActivityResult(requestCode, resultCode, intent);
+ *   if (scanResult != null) {
+ *     // handle scan result
+ *   }
+ *   // else continue with any other code you need in the method
+ *   ...
+ * }
+ * }</pre>
+ *
+ * <p>This is where you will handle a scan result.</p>
+ *
+ * <p>Second, just call this in response to a user action somewhere to begin the scan process:</p>
+ *
+ * <pre>{@code
+ * IntentIntegrator integrator = new IntentIntegrator(yourActivity);
+ * integrator.initiateScan();
+ * }</pre>
+ *
+ * <p>Note that {@link #initiateScan()} returns an {@link AlertDialog} which is non-null if the
+ * user was prompted to download the application. This lets the calling app potentially manage the dialog.
+ * In particular, ideally, the app dismisses the dialog if it's still active in its {@link Activity#onPause()}
+ * method.</p>
+ * 
+ * <p>You can use {@link #setTitle(String)} to customize the title of this download prompt dialog (or, use
+ * {@link #setTitleByID(int)} to set the title by string resource ID.) Likewise, the prompt message, and
+ * yes/no button labels can be changed.</p>
+ *
+ * <p>Finally, you can use {@link #addExtra(String, Object)} to add more parameters to the Intent used
+ * to invoke the scanner. This can be used to set additional options not directly exposed by this
+ * simplified API.</p>
+ * 
+ * <p>By default, this will only allow applications that are known to respond to this intent correctly
+ * do so. The apps that are allowed to response can be set with {@link #setTargetApplications(List)}.
+ * For example, set to {@link #TARGET_BARCODE_SCANNER_ONLY} to only target the Barcode Scanner app itself.</p>
+ *
+ * <h2>Sharing text via barcode</h2>
+ *
+ * <p>To share text, encoded as a QR Code on-screen, similarly, see {@link #shareText(CharSequence)}.</p>
+ *
+ * <p>Some code, particularly download integration, was contributed from the Anobiit application.</p>
+ *
+ * <h2>Enabling experimental barcode formats</h2>
+ *
+ * <p>Some formats are not enabled by default even when scanning with {@link #ALL_CODE_TYPES}, such as
+ * PDF417. Use {@link #initiateScan(java.util.Collection)} with
+ * a collection containing the names of formats to scan for explicitly, like "PDF_417", to use such
+ * formats.</p>
+ *
+ * @author Sean Owen
+ * @author Fred Lin
+ * @author Isaac Potoczny-Jones
+ * @author Brad Drehmer
+ * @author gcstang
+ */
+public class IntentIntegrator {
+
+  public static final int REQUEST_CODE = 0x0000c0de; // Only use bottom 16 bits
+  private static final String TAG = IntentIntegrator.class.getSimpleName();
+
+  public static final String DEFAULT_TITLE = "Install Barcode Scanner?";
+  public static final String DEFAULT_MESSAGE =
+      "This application requires Barcode Scanner. Would you like to install it?";
+  public static final String DEFAULT_YES = "Yes";
+  public static final String DEFAULT_NO = "No";
+
+  private static final String BS_PACKAGE = "com.google.zxing.client.android";
+  private static final String BSPLUS_PACKAGE = "com.srowen.bs.android";
+
+  // supported barcode formats
+  public static final Collection<String> PRODUCT_CODE_TYPES = list("UPC_A", "UPC_E", "EAN_8", "EAN_13", "RSS_14");
+  public static final Collection<String> ONE_D_CODE_TYPES =
+      list("UPC_A", "UPC_E", "EAN_8", "EAN_13", "CODE_39", "CODE_93", "CODE_128",
+           "ITF", "RSS_14", "RSS_EXPANDED");
+  public static final Collection<String> QR_CODE_TYPES = Collections.singleton("QR_CODE");
+  public static final Collection<String> DATA_MATRIX_TYPES = Collections.singleton("DATA_MATRIX");
+
+  public static final Collection<String> ALL_CODE_TYPES = null;
+  
+  public static final List<String> TARGET_BARCODE_SCANNER_ONLY = Collections.singletonList(BS_PACKAGE);
+  public static final List<String> TARGET_ALL_KNOWN = list(
+          BSPLUS_PACKAGE,             // Barcode Scanner+
+          BSPLUS_PACKAGE + ".simple", // Barcode Scanner+ Simple
+          BS_PACKAGE                  // Barcode Scanner          
+          // What else supports this intent?
+      );
+  
+  private final Activity activity;
+  private final Fragment fragment;
+
+  private String title;
+  private String message;
+  private String buttonYes;
+  private String buttonNo;
+  private List<String> targetApplications;
+  private final Map<String,Object> moreExtras = new HashMap<String,Object>(3);
+
+  /**
+   * @param activity {@link Activity} invoking the integration
+   */
+  public IntentIntegrator(Activity activity) {
+    this.activity = activity;
+    this.fragment = null;
+    initializeConfiguration();
+  }
+
+  /**
+   * @param fragment {@link Fragment} invoking the integration.
+   *  {@link #startActivityForResult(Intent, int)} will be called on the {@link Fragment} instead
+   *  of an {@link Activity}
+   */
+  public IntentIntegrator(Fragment fragment) {
+    this.activity = fragment.getActivity();
+    this.fragment = fragment;
+    initializeConfiguration();
+  }
+
+  private void initializeConfiguration() {
+    title = DEFAULT_TITLE;
+    message = DEFAULT_MESSAGE;
+    buttonYes = DEFAULT_YES;
+    buttonNo = DEFAULT_NO;
+    targetApplications = TARGET_ALL_KNOWN;
+  }
+  
+  public String getTitle() {
+    return title;
+  }
+  
+  public void setTitle(String title) {
+    this.title = title;
+  }
+
+  public void setTitleByID(int titleID) {
+    title = activity.getString(titleID);
+  }
+
+  public String getMessage() {
+    return message;
+  }
+
+  public void setMessage(String message) {
+    this.message = message;
+  }
+
+  public void setMessageByID(int messageID) {
+    message = activity.getString(messageID);
+  }
+
+  public String getButtonYes() {
+    return buttonYes;
+  }
+
+  public void setButtonYes(String buttonYes) {
+    this.buttonYes = buttonYes;
+  }
+
+  public void setButtonYesByID(int buttonYesID) {
+    buttonYes = activity.getString(buttonYesID);
+  }
+
+  public String getButtonNo() {
+    return buttonNo;
+  }
+
+  public void setButtonNo(String buttonNo) {
+    this.buttonNo = buttonNo;
+  }
+
+  public void setButtonNoByID(int buttonNoID) {
+    buttonNo = activity.getString(buttonNoID);
+  }
+  
+  public Collection<String> getTargetApplications() {
+    return targetApplications;
+  }
+  
+  public final void setTargetApplications(List<String> targetApplications) {
+    if (targetApplications.isEmpty()) {
+      throw new IllegalArgumentException("No target applications");
+    }
+    this.targetApplications = targetApplications;
+  }
+  
+  public void setSingleTargetApplication(String targetApplication) {
+    this.targetApplications = Collections.singletonList(targetApplication);
+  }
+
+  public Map<String,?> getMoreExtras() {
+    return moreExtras;
+  }
+
+  public final void addExtra(String key, Object value) {
+    moreExtras.put(key, value);
+  }
+
+  /**
+   * Initiates a scan for all known barcode types with the default camera.
+   *
+   * @return the {@link AlertDialog} that was shown to the user prompting them to download the app
+   *   if a prompt was needed, or null otherwise.
+   */
+  public final AlertDialog initiateScan() {
+    return initiateScan(ALL_CODE_TYPES, -1);
+  }
+  
+  /**
+   * Initiates a scan for all known barcode types with the specified camera.
+   *
+   * @param cameraId camera ID of the camera to use. A negative value means "no preference".
+   * @return the {@link AlertDialog} that was shown to the user prompting them to download the app
+   *   if a prompt was needed, or null otherwise.
+   */
+  public final AlertDialog initiateScan(int cameraId) {
+    return initiateScan(ALL_CODE_TYPES, cameraId);
+  }
+
+  /**
+   * Initiates a scan, using the default camera, only for a certain set of barcode types, given as strings corresponding
+   * to their names in ZXing's {@code BarcodeFormat} class like "UPC_A". You can supply constants
+   * like {@link #PRODUCT_CODE_TYPES} for example.
+   *
+   * @param desiredBarcodeFormats names of {@code BarcodeFormat}s to scan for
+   * @return the {@link AlertDialog} that was shown to the user prompting them to download the app
+   *   if a prompt was needed, or null otherwise.
+   */
+  public final AlertDialog initiateScan(Collection<String> desiredBarcodeFormats) {
+    return initiateScan(desiredBarcodeFormats, -1);
+  }
+  
+  /**
+   * Initiates a scan, using the specified camera, only for a certain set of barcode types, given as strings corresponding
+   * to their names in ZXing's {@code BarcodeFormat} class like "UPC_A". You can supply constants
+   * like {@link #PRODUCT_CODE_TYPES} for example.
+   *
+   * @param desiredBarcodeFormats names of {@code BarcodeFormat}s to scan for
+   * @param cameraId camera ID of the camera to use. A negative value means "no preference".
+   * @return the {@link AlertDialog} that was shown to the user prompting them to download the app
+   *   if a prompt was needed, or null otherwise
+   */
+  public final AlertDialog initiateScan(Collection<String> desiredBarcodeFormats, int cameraId) {
+    Intent intentScan = new Intent(BS_PACKAGE + ".SCAN");
+    intentScan.addCategory(Intent.CATEGORY_DEFAULT);
+
+    // check which types of codes to scan for
+    if (desiredBarcodeFormats != null) {
+      // set the desired barcode types
+      StringBuilder joinedByComma = new StringBuilder();
+      for (String format : desiredBarcodeFormats) {
+        if (joinedByComma.length() > 0) {
+          joinedByComma.append(',');
+        }
+        joinedByComma.append(format);
+      }
+      intentScan.putExtra("SCAN_FORMATS", joinedByComma.toString());
+    }
+
+    // check requested camera ID
+    if (cameraId >= 0) {
+      intentScan.putExtra("SCAN_CAMERA_ID", cameraId);
+    }
+
+    String targetAppPackage = findTargetAppPackage(intentScan);
+    if (targetAppPackage == null) {
+      return showDownloadDialog();
+    }
+    intentScan.setPackage(targetAppPackage);
+    intentScan.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
+    intentScan.addFlags(Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET);
+    attachMoreExtras(intentScan);
+    startActivityForResult(intentScan, REQUEST_CODE);
+    return null;
+  }
+
+  /**
+   * Start an activity. This method is defined to allow different methods of activity starting for
+   * newer versions of Android and for compatibility library.
+   *
+   * @param intent Intent to start.
+   * @param code Request code for the activity
+   * @see android.app.Activity#startActivityForResult(Intent, int)
+   * @see android.app.Fragment#startActivityForResult(Intent, int)
+   */
+  protected void startActivityForResult(Intent intent, int code) {
+    if (fragment == null) {
+      activity.startActivityForResult(intent, code);
+    } else {
+      fragment.startActivityForResult(intent, code);
+    }
+  }
+  
+  private String findTargetAppPackage(Intent intent) {
+    PackageManager pm = activity.getPackageManager();
+    List<ResolveInfo> availableApps = pm.queryIntentActivities(intent, PackageManager.MATCH_DEFAULT_ONLY);
+    if (availableApps != null) {
+      for (String targetApp : targetApplications) {
+        if (contains(availableApps, targetApp)) {
+          return targetApp;
+        }
+      }
+    }
+    return null;
+  }
+  
+  private static boolean contains(Iterable<ResolveInfo> availableApps, String targetApp) {
+    for (ResolveInfo availableApp : availableApps) {
+      String packageName = availableApp.activityInfo.packageName;
+      if (targetApp.equals(packageName)) {
+        return true;
+      }
+    }
+    return false;
+  }
+
+  private AlertDialog showDownloadDialog() {
+    AlertDialog.Builder downloadDialog = new AlertDialog.Builder(activity);
+    downloadDialog.setTitle(title);
+    downloadDialog.setMessage(message);
+    downloadDialog.setPositiveButton(buttonYes, new DialogInterface.OnClickListener() {
+      @Override
+      public void onClick(DialogInterface dialogInterface, int i) {
+        String packageName;
+        if (targetApplications.contains(BS_PACKAGE)) {
+          // Prefer to suggest download of BS if it's anywhere in the list
+          packageName = BS_PACKAGE;
+        } else {
+          // Otherwise, first option:
+          packageName = targetApplications.get(0);
+        }
+        Uri uri = Uri.parse("market://details?id=" + packageName);
+        Intent intent = new Intent(Intent.ACTION_VIEW, uri);
+        try {
+          if (fragment == null) {
+            activity.startActivity(intent);
+          } else {
+            fragment.startActivity(intent);
+          }
+        } catch (ActivityNotFoundException anfe) {
+          // Hmm, market is not installed
+          Log.w(TAG, "Google Play is not installed; cannot install " + packageName);
+        }
+      }
+    });
+    downloadDialog.setNegativeButton(buttonNo, null);
+    downloadDialog.setCancelable(true);
+    return downloadDialog.show();
+  }
+
+
+  /**
+   * <p>Call this from your {@link Activity}'s
+   * {@link Activity#onActivityResult(int, int, Intent)} method.</p>
+   *
+   * @param requestCode request code from {@code onActivityResult()}
+   * @param resultCode result code from {@code onActivityResult()}
+   * @param intent {@link Intent} from {@code onActivityResult()}
+   * @return null if the event handled here was not related to this class, or
+   *  else an {@link IntentResult} containing the result of the scan. If the user cancelled scanning,
+   *  the fields will be null.
+   */
+  public static IntentResult parseActivityResult(int requestCode, int resultCode, Intent intent) {
+    if (requestCode == REQUEST_CODE) {
+      if (resultCode == Activity.RESULT_OK) {
+        String contents = intent.getStringExtra("SCAN_RESULT");
+        String formatName = intent.getStringExtra("SCAN_RESULT_FORMAT");
+        byte[] rawBytes = intent.getByteArrayExtra("SCAN_RESULT_BYTES");
+        int intentOrientation = intent.getIntExtra("SCAN_RESULT_ORIENTATION", Integer.MIN_VALUE);
+        Integer orientation = intentOrientation == Integer.MIN_VALUE ? null : intentOrientation;
+        String errorCorrectionLevel = intent.getStringExtra("SCAN_RESULT_ERROR_CORRECTION_LEVEL");
+        return new IntentResult(contents,
+                                formatName,
+                                rawBytes,
+                                orientation,
+                                errorCorrectionLevel);
+      }
+      return new IntentResult();
+    }
+    return null;
+  }
+
+
+  /**
+   * Defaults to type "TEXT_TYPE".
+   *
+   * @param text the text string to encode as a barcode
+   * @return the {@link AlertDialog} that was shown to the user prompting them to download the app
+   *   if a prompt was needed, or null otherwise
+   * @see #shareText(CharSequence, CharSequence)
+   */
+  public final AlertDialog shareText(CharSequence text) {
+    return shareText(text, "TEXT_TYPE");
+  }
+
+  /**
+   * Shares the given text by encoding it as a barcode, such that another user can
+   * scan the text off the screen of the device.
+   *
+   * @param text the text string to encode as a barcode
+   * @param type type of data to encode. See {@code com.google.zxing.client.android.Contents.Type} constants.
+   * @return the {@link AlertDialog} that was shown to the user prompting them to download the app
+   *   if a prompt was needed, or null otherwise
+   */
+  public final AlertDialog shareText(CharSequence text, CharSequence type) {
+    Intent intent = new Intent();
+    intent.addCategory(Intent.CATEGORY_DEFAULT);
+    intent.setAction(BS_PACKAGE + ".ENCODE");
+    intent.putExtra("ENCODE_TYPE", type);
+    intent.putExtra("ENCODE_DATA", text);
+    String targetAppPackage = findTargetAppPackage(intent);
+    if (targetAppPackage == null) {
+      return showDownloadDialog();
+    }
+    intent.setPackage(targetAppPackage);
+    intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
+    intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET);
+    attachMoreExtras(intent);
+    if (fragment == null) {
+      activity.startActivity(intent);
+    } else {
+      fragment.startActivity(intent);
+    }
+    return null;
+  }
+  
+  private static List<String> list(String... values) {
+    return Collections.unmodifiableList(Arrays.asList(values));
+  }
+
+  private void attachMoreExtras(Intent intent) {
+    for (Map.Entry<String,Object> entry : moreExtras.entrySet()) {
+      String key = entry.getKey();
+      Object value = entry.getValue();
+      // Kind of hacky
+      if (value instanceof Integer) {
+        intent.putExtra(key, (Integer) value);
+      } else if (value instanceof Long) {
+        intent.putExtra(key, (Long) value);
+      } else if (value instanceof Boolean) {
+        intent.putExtra(key, (Boolean) value);
+      } else if (value instanceof Double) {
+        intent.putExtra(key, (Double) value);
+      } else if (value instanceof Float) {
+        intent.putExtra(key, (Float) value);
+      } else if (value instanceof Bundle) {
+        intent.putExtra(key, (Bundle) value);
+      } else {
+        intent.putExtra(key, value.toString());
+      }
+    }
+  }
+
+}

app/src/main/java/com/google/zxing/integration/android/IntentResult.java

@@ -0,0 +1,95 @@
+/*
+ * Copyright 2009 ZXing authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.zxing.integration.android;
+
+/**
+ * <p>Encapsulates the result of a barcode scan invoked through {@link IntentIntegrator}.</p>
+ *
+ * @author Sean Owen
+ */
+public final class IntentResult {
+
+  private final String contents;
+  private final String formatName;
+  private final byte[] rawBytes;
+  private final Integer orientation;
+  private final String errorCorrectionLevel;
+
+  IntentResult() {
+    this(null, null, null, null, null);
+  }
+
+  IntentResult(String contents,
+               String formatName,
+               byte[] rawBytes,
+               Integer orientation,
+               String errorCorrectionLevel) {
+    this.contents = contents;
+    this.formatName = formatName;
+    this.rawBytes = rawBytes;
+    this.orientation = orientation;
+    this.errorCorrectionLevel = errorCorrectionLevel;
+  }
+
+  /**
+   * @return raw content of barcode
+   */
+  public String getContents() {
+    return contents;
+  }
+
+  /**
+   * @return name of format, like "QR_CODE", "UPC_A". See {@code BarcodeFormat} for more format names.
+   */
+  public String getFormatName() {
+    return formatName;
+  }
+
+  /**
+   * @return raw bytes of the barcode content, if applicable, or null otherwise
+   */
+  public byte[] getRawBytes() {
+    return rawBytes;
+  }
+
+  /**
+   * @return rotation of the image, in degrees, which resulted in a successful scan. May be null.
+   */
+  public Integer getOrientation() {
+    return orientation;
+  }
+
+  /**
+   * @return name of the error correction level used in the barcode, if applicable
+   */
+  public String getErrorCorrectionLevel() {
+    return errorCorrectionLevel;
+  }
+  
+  @Override
+  public String toString() {
+    StringBuilder dialogText = new StringBuilder(100);
+    dialogText.append("Format: ").append(formatName).append('\n');
+    dialogText.append("Contents: ").append(contents).append('\n');
+    int rawBytesLength = rawBytes == null ? 0 : rawBytes.length;
+    dialogText.append("Raw bytes: (").append(rawBytesLength).append(" bytes)\n");
+    dialogText.append("Orientation: ").append(orientation).append('\n');
+    dialogText.append("EC level: ").append(errorCorrectionLevel).append('\n');
+    return dialogText.toString();
+  }
+
+}

app/src/main/java/de/vanitasvitae/enigmandroid/MainActivity.java

@@ -15,10 +15,14 @@ import android.view.MenuItem;
 import android.view.View;
 import android.widget.Toast;
 
-import java.util.ArrayList;
+import com.google.zxing.integration.android.IntentIntegrator;
+import com.google.zxing.integration.android.IntentResult;
 
+import de.vanitasvitae.enigmandroid.enigma.Enigma;
+import de.vanitasvitae.enigmandroid.enigma.EnigmaStateBundle;
 import de.vanitasvitae.enigmandroid.enigma.inputPreparer.InputPreparer;
 import de.vanitasvitae.enigmandroid.layout.LayoutContainer;
+import de.vanitasvitae.enigmandroid.layout.PassphraseDialogBuilder;
 
 /**
  * Main Android Activity of the app
@@ -44,6 +48,7 @@ public class MainActivity extends Activity
     private static final int RESULT_SETTINGS = 1;
     private static final String URI_CHANGELOG =
             "https://github.com/vanitasvitae/EnigmAndroid/blob/master/CHANGELOG.txt";
+    public static final String APP_ID = "EnigmAndroid";
 
     LayoutContainer layoutContainer;
     protected String prefMachineType;
@@ -55,7 +60,6 @@ public class MainActivity extends Activity
     public void onCreate(Bundle savedInstanceState)
     {
         super.onCreate(savedInstanceState);
-        Log.d("Activity","OnCreate!");
         SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
         this.prefMachineType = sharedPreferences.getString(SettingsActivity.PREF_MACHINE_TYPE, getResources().
                 getStringArray(R.array.pref_alias_machine_type)[0]);
@@ -81,65 +85,6 @@ public class MainActivity extends Activity
         }
     }
 
-    /**
-     * Unfortunately we have to overwrite this, because on orientation changes the LayoutContainer
-     * will reset and we would lose information about plugboard, reflector-wiring and ring settings.
-     * These info are we saving here.
-     * TODO: Find more elegant solution
-     * @param outState state
-     */
-    @Override
-    protected void onSaveInstanceState (Bundle outState)
-    {
-        ArrayList<Integer> plugboard = new ArrayList<>();
-        if(layoutContainer.getState().getConfigurationPlugboard() != null) {
-            for (int i : layoutContainer.getState().getConfigurationPlugboard()) plugboard.add(i);
-        }
-        outState.putIntegerArrayList("plugboard",plugboard);
-
-        ArrayList<Integer> reflector = new ArrayList<>();
-        if(layoutContainer.getState().getConfigurationReflector() != null) {
-            for (int i : layoutContainer.getState().getConfigurationReflector()) reflector.add(i);
-        }
-        outState.putIntegerArrayList("reflector", reflector);
-
-        outState.putInt("ring1", layoutContainer.getState().getRingSettingRotor1());
-        outState.putInt("ring2", layoutContainer.getState().getRingSettingRotor2());
-        outState.putInt("ring3", layoutContainer.getState().getRingSettingRotor3());
-        outState.putInt("ring4", layoutContainer.getState().getRingSettingRotor4());
-        outState.putInt("ringR", layoutContainer.getState().getRingSettingReflector());
-
-        super.onSaveInstanceState(outState);
-    }
-
-    /**
-     * Here we get back values previously saved int onSaveInstanceState
-     * @param savedInstanceState state
-     */
-    @Override
-    protected void onRestoreInstanceState (Bundle savedInstanceState)
-    {
-        ArrayList<Integer> plugboard = savedInstanceState.getIntegerArrayList("plugboard");
-        if(plugboard != null && plugboard.size() != 0) {
-            int[] p = new int[plugboard.size()];
-            for (int i = 0; i < plugboard.size(); i++) p[i] = plugboard.get(i);
-            layoutContainer.getState().setConfigurationPlugboard(p);
-        }
-
-        ArrayList<Integer> reflector = savedInstanceState.getIntegerArrayList("reflector");
-        if(reflector != null && reflector.size() != 0) {
-            int[] r = new int[reflector.size()];
-            for (int i = 0; i < reflector.size(); i++) r[i] = reflector.get(i);
-            layoutContainer.getState().setConfigurationReflector(r);
-        }
-
-        layoutContainer.getState().setRingSettingRotor1(savedInstanceState.getInt("ring1"));
-        layoutContainer.getState().setRingSettingRotor2(savedInstanceState.getInt("ring2"));
-        layoutContainer.getState().setRingSettingRotor3(savedInstanceState.getInt("ring3"));
-        layoutContainer.getState().setRingSettingRotor4(savedInstanceState.getInt("ring4"));
-        layoutContainer.getState().setRingSettingReflector(savedInstanceState.getInt("ringR"));
-    }
-
     @Override
     public void onConfigurationChanged(Configuration newConfig) {
         super.onConfigurationChanged(newConfig);
@@ -204,6 +149,8 @@ public class MainActivity extends Activity
             layoutContainer = LayoutContainer.createLayoutContainer(prefMachineType);
             layoutContainer.setInputPreparer(InputPreparer.createInputPreparer());
             layoutContainer.getInput().setText(savedInput);
+            SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
+            sharedPreferences.edit().putString(SettingsActivity.PREF_MACHINE_TYPE, type);
         }
     }
 
@@ -266,6 +213,11 @@ public class MainActivity extends Activity
         return prefMessageFormatting;
     }
 
+    public void onDialogFinished(EnigmaStateBundle state)
+    {
+        layoutContainer.getEnigma().setState(state);
+    }
+
     @Override
     public boolean onCreateOptionsMenu(Menu menu)
     {
@@ -290,12 +242,12 @@ public class MainActivity extends Activity
         else if (id == R.id.action_random_configuration)
         {
             layoutContainer.getEnigma().randomState();
-            layoutContainer.setLayoutState(layoutContainer.getEnigma().getState());
+            layoutContainer.syncStateFromEnigmaToLayout();
             Toast.makeText(getApplicationContext(), R.string.message_random,
                     Toast.LENGTH_SHORT).show();
             return true;
         }
-        else if (id == R.id.action_choose_ringstellung)
+        else if (id == R.id.action_choose_ringsetting)
         {
             layoutContainer.showRingSettingsDialog();
             return true;
@@ -325,6 +277,25 @@ public class MainActivity extends Activity
                 startActivity(Intent.createChooser(sendIntent, getResources().getText(R.string.send_to)));
             }
         }
+        else if (id == R.id.action_receive_scan)
+        {
+            IntentIntegrator integrator = new IntentIntegrator(this);
+            integrator.initiateScan();
+            return true;
+        }
+        else if(id == R.id.action_share_scan)
+        {
+            IntentIntegrator QRIntegrator = new IntentIntegrator(this);
+            layoutContainer.syncStateFromLayoutToEnigma();
+            Log.d(APP_ID, "Sharing configuration to QR: " + layoutContainer.getEnigma().stateToString());
+            QRIntegrator.shareText(layoutContainer.getEnigma().stateToString());
+            return true;
+        }
+        else if(id == R.id.action_enter_seed)
+        {
+            new PassphraseDialogBuilder().showDialog();
+            return true;
+        }
         return super.onOptionsItemSelected(item);
     }
 
@@ -390,10 +361,37 @@ public class MainActivity extends Activity
                         getResources().getStringArray(R.array.pref_alias_message_formatting)[0]));
                 break;
             }
-
+            case IntentIntegrator.REQUEST_CODE:
+                IntentResult scanResult = IntentIntegrator.parseActivityResult(requestCode, resultCode, data);
+                if (scanResult != null) {
+                    String content = scanResult.getContents();
+                    if(content == null) Log.e(APP_ID, "Error! Received nothing from QR-Code!");
+                    else Log.d(APP_ID, "Received "+content+" from QR-Code!");
+                        restoreStateFromCode(content);
+                }
         }
     }
 
+    private void restoreStateFromCode(String mem)
+    {
+        setPrefMachineType(Enigma.chooseEnigmaFromSave(mem));
+        updateContentView();
+        layoutContainer = LayoutContainer.createLayoutContainer(getPrefMachineType());
+        layoutContainer.getEnigma().restoreState(mem);
+        layoutContainer.setInputPreparer(InputPreparer.createInputPreparer());
+        layoutContainer.syncStateFromEnigmaToLayout();
+    }
+
+    public void createStateFromSeed(String seed)
+    {
+        setPrefMachineType(Enigma.chooseEnigmaFromSeed(seed));
+        updateContentView();
+        layoutContainer = LayoutContainer.createLayoutContainer(getPrefMachineType());
+        layoutContainer.getEnigma().setStateFromSeed(seed);
+        layoutContainer.setInputPreparer(InputPreparer.createInputPreparer());
+        layoutContainer.syncStateFromEnigmaToLayout();
+    }
+
     /**
      * Open the web page with the URL url
      * @param url URL of the website

app/src/main/java/de/vanitasvitae/enigmandroid/enigma/Enigma.java

@@ -1,5 +1,8 @@
 package de.vanitasvitae.enigmandroid.enigma;
 
+import java.security.SecureRandom;
+import java.util.Random;
+
 /**
  * Main component of the Enigma machine
  * This is the mostly abstract base of any enigma machine.
@@ -23,14 +26,26 @@ package de.vanitasvitae.enigmandroid.enigma;
 public abstract class Enigma
 {
     protected static String machineType;
+    protected int machineTypeOffset = 0;
     protected boolean doAnomaly = false;  //Has the time come to handle an anomaly?
     protected boolean prefAnomaly;  //Do you WANT to simulate the anomaly?
+    protected Random rand;
+    public Enigma(int off)
+    {
+        this.machineTypeOffset = off;
+        initialize();
+    }
 
     public Enigma()
     {
         initialize();
     }
 
+    public int getMachineTypeOffset()
+    {
+        return machineTypeOffset;
+    }
+
     /**
      * Set the enigma to an initial state
      */
@@ -66,11 +81,20 @@ public abstract class Enigma
     public abstract void nextState();
 
     /**
-     * Set the enigma to a random state.
+     * Set the enigma into a completely random state using a unseeded SecureRandom object.
+     */
+    public void randomState()
+    {
+        this.rand = new SecureRandom();
+        generateState();
+    }
+
+    /**
+     * Set the enigma to a random state based on the initialization of rand.
      * Don not choose a rotor twice, set random rotations, ringSettings, ukw and possibly
      * plugboard / rewirable ukw configurations.
      */
-    public abstract void randomState();
+     protected abstract void generateState();
 
     /**
      * Substitute char k by sending the signal through the enigma.
@@ -94,6 +118,53 @@ public abstract class Enigma
      */
     public abstract EnigmaStateBundle getState();
 
+    /**
+     * Set the rand into a certain state based on seed.
+     * Then set the enigmas state.
+     * @param seed
+     */
+    public void setStateFromSeed(String seed)
+    {
+        rand = new Random(seed.hashCode());
+        generateState();
+    }
+
+    public abstract void restoreState(String mem);
+
+    public abstract String stateToString();
+
+    public static String numToMachineType(int n)
+    {
+        switch (n) {
+            case 0: return "I";
+            case 1: return "M3";
+            case 2: return "M4";
+            case 3: return "G31";
+            case 4: return "G312";
+            case 5: return "G260";
+            case 6: return "D";
+            case 7: return "K";
+            case 8: return "KS";
+            case 9: return "KSA";
+            case 10: return "R";
+            default: return "T";
+        }
+    }
+
+    public static String chooseEnigmaFromSeed(String seed)
+    {
+        return numToMachineType(seed.hashCode() % 12);
+    }
+
+    public static String chooseEnigmaFromSave(String save)
+    {
+        int index = save.indexOf(":");
+        if(index != -1) save = save.substring(0, index);
+        long s = Long.valueOf(save);
+        return numToMachineType(getValue(s,12));
+    }
+
+
     /**
      * set prefAnomaly variable
      * @param b boolean
@@ -112,4 +183,40 @@ public abstract class Enigma
         return machineType;
     }
 
+    /**
+     *
+     * @param s source
+     * @param d domain (max value) of the value
+     * @return value
+     */
+    protected static int getValue(long s, int d)
+    {
+        return (int) ((s%d)+d)%d;
+    }
+
+    /**
+     * remove a digit of domain d from source s
+     * @param s source
+     * @param d domain (max value)
+     * @return trimmed source
+     */
+    protected static long removeDigit(long s, int d)
+    {
+        return (s-(s%d))/d;
+    }
+
+    /**
+     *
+     * @param s source
+     * @param b base (max value)
+     * @param v actual value
+     * @return lengthened source
+     */
+    protected static long addDigit(long s, int v, int b)
+    {
+        long x = s;
+        x*=b;
+        x+=(v%b);
+        return x;
+    }
 }

app/src/main/java/de/vanitasvitae/enigmandroid/enigma/Enigma_D.java

@@ -1,8 +1,5 @@
 package de.vanitasvitae.enigmandroid.enigma;
 
-import java.security.SecureRandom;
-import java.util.Random;
-
 import de.vanitasvitae.enigmandroid.enigma.rotors.Reflector;
 import de.vanitasvitae.enigmandroid.enigma.rotors.Rotor;
 
@@ -34,6 +31,7 @@ public class Enigma_D extends Enigma {
 
     protected Reflector.ReflectorEnigma_D_KD_G31 reflector;
 
+    protected static int machineTypeOffset = 70;
     public Enigma_D()
     {
         super();
@@ -44,10 +42,10 @@ public class Enigma_D extends Enigma {
     public void initialize()
     {
         this.entryWheel = Rotor.createRotor(1, 0, 0);
-        this.rotor1 = Rotor.createRotor(70, 0, 0);
+        this.rotor1 = Rotor.createRotor(machineTypeOffset, 0, 0);
-        this.rotor2 = Rotor.createRotor(71, 0, 0);
+        this.rotor2 = Rotor.createRotor(machineTypeOffset, 0, 0);
-        this.rotor3 = Rotor.createRotor(72, 0, 0);
+        this.rotor3 = Rotor.createRotor(machineTypeOffset, 0, 0);
-        this.reflector = (Reflector.ReflectorEnigma_D_KD_G31) Reflector.createReflector(70);
+        this.reflector = (Reflector.ReflectorEnigma_D_KD_G31) Reflector.createReflector(machineTypeOffset);
     }
 
     @Override
@@ -66,9 +64,7 @@ public class Enigma_D extends Enigma {
     }
 
     @Override
-    public void randomState()
+    protected void generateState() {
-    {
-        Random rand = new SecureRandom();
         int rot1 = rand.nextInt(26);
         int rot2 = rand.nextInt(26);
         int rot3 = rand.nextInt(26);
@@ -78,12 +74,14 @@ public class Enigma_D extends Enigma {
         int ring3 = rand.nextInt(26);
         int ringRef = rand.nextInt(26);
 
-        this.rotor1 = Rotor.createRotor(70, rot1, ring1);
+        this.rotor1 = Rotor.createRotor(machineTypeOffset, rot1, ring1);
-        this.rotor2 = Rotor.createRotor(71, rot2, ring2);
+        this.rotor2 = Rotor.createRotor(machineTypeOffset+1, rot2, ring2);
-        this.rotor3 = Rotor.createRotor(72, rot3, ring3);
+        this.rotor3 = Rotor.createRotor(machineTypeOffset+2, rot3, ring3);
-        this.reflector = (Reflector.ReflectorEnigma_D_KD_G31) Reflector.createReflector(70);
+
+        this.reflector = (Reflector.ReflectorEnigma_D_KD_G31) Reflector.createReflector(machineTypeOffset);
         this.reflector.setRotation(rotRef);
         this.reflector.setRingSetting(ringRef);
+        this.reflector.setConfiguration(Plugboard.seedToReflectorConfiguration(rand));
     }
 
     @Override
@@ -153,4 +151,54 @@ public class Enigma_D extends Enigma {
 
         return state;
     }
+
+    @Override
+    public void restoreState(String mem)
+    {
+        String reflectorConf = mem.substring(mem.lastIndexOf(":r")+2);
+        long s = Long.valueOf(mem.substring(0, mem.indexOf(":r")));
+
+        s = removeDigit(s, 12);  //Remove machine type
+        int rot1 = getValue(s, 26);
+        s = removeDigit(s, 26);
+        int ring1 = getValue(s, 26);
+        s = removeDigit(s, 26);
+        int rot2 = getValue(s, 26);
+        s = removeDigit(s, 26);
+        int ring2 = getValue(s, 26);
+        s = removeDigit(s, 26);
+        int rot3 = getValue(s, 26);
+        s = removeDigit(s, 26);
+        int ring3 = getValue(s, 26);
+        s = removeDigit(s, 26);
+        int rotRef = getValue(s, 26);
+        s = removeDigit(s, 26);
+        int ringRef = getValue(s, 26);
+
+        this.rotor1 = Rotor.createRotor(machineTypeOffset, rot1, ring1);
+        this.rotor2 = Rotor.createRotor(machineTypeOffset+1, rot2, ring2);
+        this.rotor3 = Rotor.createRotor(machineTypeOffset+2, rot3, ring3);
+        this.reflector = (Reflector.ReflectorEnigma_D_KD_G31) Reflector.createReflector(machineTypeOffset);
+        this.reflector.setConfiguration(Plugboard.stringToConfiguration(reflectorConf));
+        this.reflector.setRotation(rotRef);
+        this.reflector.setRingSetting(ringRef);
+    }
+
+    @Override
+    public String stateToString() {
+        String save = "";
+        long s = reflector.getRingSetting();
+        s = addDigit(s, reflector.getRotation(), 26);
+        s = addDigit(s, rotor3.getRingSetting(), 26);
+        s = addDigit(s, rotor3.getRotation(), 26);
+        s = addDigit(s, rotor2.getRingSetting(), 26);
+        s = addDigit(s, rotor2.getRotation(), 26);
+        s = addDigit(s, rotor1.getRingSetting(), 26);
+        s = addDigit(s, rotor1.getRotation(), 26);
+        s = addDigit(s, 6, 12); //Machine #6
+
+        save = save+s;
+        save = save + ":r" + Plugboard.configurationToString(getState().getConfigurationReflector());
+        return save;
+    }
 }

app/src/main/java/de/vanitasvitae/enigmandroid/enigma/Enigma_G260.java

@@ -1,11 +1,5 @@
 package de.vanitasvitae.enigmandroid.enigma;
 
-import java.security.SecureRandom;
-import java.util.Random;
-
-import de.vanitasvitae.enigmandroid.enigma.rotors.Reflector;
-import de.vanitasvitae.enigmandroid.enigma.rotors.Rotor;
-
 /**
  * Implementation of the Enigma machine of type G31 (Abwehr)
  * Copyright (C) 2015  Paul Schaub
@@ -29,43 +23,31 @@ public class Enigma_G260 extends Enigma_G31
 {
     public Enigma_G260()
     {
-        super();
+        super(60);
         machineType = "G260";
     }
-    @Override
+
-    public void initialize()
-    {
-        this.entryWheel = Rotor.createRotor(1, 0, 0);
-        this.rotor1 = Rotor.createRotor(60, 0, 0);
-        this.rotor2 = Rotor.createRotor(61, 0, 0);
-        this.rotor3 = Rotor.createRotor(62, 0, 0);
-        this.reflector = Reflector.createReflector(60);
-    }
 
     @Override
-    public void randomState()
+    public String stateToString()
     {
-        Random rand = new SecureRandom();
+        String save = "";
+        long s = reflector.getRingSetting();
+        s = addDigit(s, reflector.getRotation(), 26);
+        s = addDigit(s, rotor3.getRingSetting(), 26);
+        s = addDigit(s, rotor3.getRotation(), 26);
+        s = addDigit(s, rotor2.getRingSetting(), 26);
+        s = addDigit(s, rotor2.getRotation(), 26);
+        s = addDigit(s, rotor1.getRingSetting(), 26);
+        s = addDigit(s, rotor1.getRotation(), 26);
 
-        int rotor1, rotor2=-1, rotor3=-1;
+        s = addDigit(s, rotor3.getNumber(), 10);
-        rotor1 = rand.nextInt(3);
+        s = addDigit(s, rotor2.getNumber(), 10);
-        while(rotor2 == -1 || rotor2 == rotor1) rotor2 = rand.nextInt(3);
+        s = addDigit(s, rotor1.getNumber(), 10);
-        rotor3 = 3 - rotor1 - rotor2;
 
-        int rot1 = rand.nextInt(26);
+        s = addDigit(s, 5, 12); //Machine #5
-        int rot2 = rand.nextInt(26);
-        int rot3 = rand.nextInt(26);
-        int rotRef = rand.nextInt(26);
-        int ring1 = rand.nextInt(26);
-        int ring2 = rand.nextInt(26);
-        int ring3 = rand.nextInt(26);
-        int ringRef = rand.nextInt(26);
 
-        this.rotor1 = Rotor.createRotor(60 + rotor1, rot1, ring1);
+        save = save+s;
-        this.rotor2 = Rotor.createRotor(60 + rotor2, rot2, ring2);
+        return save;
-        this.rotor3 = Rotor.createRotor(60 + rotor3, rot3, ring3);
-        this.reflector = Reflector.createReflector(60);
-        reflector.setRotation(rotRef);
-        reflector.setRingSetting(ringRef);
     }
 }

app/src/main/java/de/vanitasvitae/enigmandroid/enigma/Enigma_G31.java

@@ -2,9 +2,6 @@ package de.vanitasvitae.enigmandroid.enigma;
 
 import android.util.Log;
 
-import java.security.SecureRandom;
-import java.util.Random;
-
 import de.vanitasvitae.enigmandroid.enigma.rotors.Reflector;
 import de.vanitasvitae.enigmandroid.enigma.rotors.Rotor;
 
@@ -36,19 +33,24 @@ public class Enigma_G31 extends Enigma
 
     protected Reflector reflector;
 
+    public Enigma_G31(int off)
+    {
+        super(off);
+    }
+
     public Enigma_G31()
     {
-        super();
+        super(40);
         machineType = "G31";
     }
     @Override
     public void initialize()
     {
         this.entryWheel = Rotor.createRotor(1, 0, 0);
-        this.rotor1 = Rotor.createRotor(40, 0, 0);
+        this.rotor1 = Rotor.createRotor(machineTypeOffset, 0, 0);
-        this.rotor2 = Rotor.createRotor(41, 0, 0);
+        this.rotor2 = Rotor.createRotor(machineTypeOffset + 1, 0, 0);
-        this.rotor3 = Rotor.createRotor(42, 0, 0);
+        this.rotor3 = Rotor.createRotor(machineTypeOffset + 2, 0, 0);
-        this.reflector = Reflector.createReflector(40);
+        this.reflector = Reflector.createReflector(machineTypeOffset);
     }
 
     @Override
@@ -70,15 +72,12 @@ public class Enigma_G31 extends Enigma
         }
     }
 
-    @Override
+    protected void generateState()
-    public void randomState()
     {
-        Random rand = new SecureRandom();
+        int r1, r2=-1, r3=-1;
-
+        r1 = rand.nextInt(3);
-        int rotor1, rotor2=-1, rotor3=-1;
+        while(r2 == -1 || r2 == r1) r2 = rand.nextInt(3);
-        rotor1 = rand.nextInt(3);
+        r3 = 3 - r1 - r2;
-        while(rotor2 == -1 || rotor2 == rotor1) rotor2 = rand.nextInt(3);
-        rotor3 = 3 - rotor1 - rotor2;
 
         int rot1 = rand.nextInt(26);
         int rot2 = rand.nextInt(26);
@@ -89,10 +88,10 @@ public class Enigma_G31 extends Enigma
         int ring3 = rand.nextInt(26);
         int ringRef = rand.nextInt(26);
 
-        this.rotor1 = Rotor.createRotor(40 + rotor1, rot1, ring1);
+        this.rotor1 = Rotor.createRotor(machineTypeOffset + r1, rot1, ring1);
-        this.rotor2 = Rotor.createRotor(40 + rotor2, rot2, ring2);
+        this.rotor2 = Rotor.createRotor(machineTypeOffset + r2, rot2, ring2);
-        this.rotor3 = Rotor.createRotor(40 + rotor3, rot3, ring3);
+        this.rotor3 = Rotor.createRotor(machineTypeOffset + r3, rot3, ring3);
-        this.reflector = Reflector.createReflector(40);
+        this.reflector = Reflector.createReflector(machineTypeOffset);
         reflector.setRotation(rotRef);
         reflector.setRingSetting(ringRef);
     }
@@ -160,4 +159,65 @@ public class Enigma_G31 extends Enigma
 
         return state;
     }
+
+    @Override
+    public void restoreState(String mem)
+    {
+        long s = Long.valueOf(mem);
+        s = removeDigit(s, 12);  //Remove machine type
+
+        int r1 = getValue(s, 10);
+        s = removeDigit(s, 10);
+        int r2 = getValue(s, 10);
+        s = removeDigit(s, 10);
+        int r3 = getValue(s, 10);
+        s = removeDigit(s, 10);
+
+        int rot1 = getValue(s, 26);
+        s = removeDigit(s, 26);
+        int ring1 = getValue(s, 26);
+        s = removeDigit(s, 26);
+        int rot2 = getValue(s, 26);
+        s = removeDigit(s, 26);
+        int ring2 = getValue(s, 26);
+        s = removeDigit(s, 26);
+        int rot3 = getValue(s, 26);
+        s = removeDigit(s, 26);
+        int ring3 = getValue(s, 26);
+        s = removeDigit(s, 26);
+        int rotRef = getValue(s, 26);
+        s = removeDigit(s, 26);
+        int ringRef = getValue(s, 26);
+
+
+        this.rotor1 = Rotor.createRotor(machineTypeOffset + r1, rot1, ring1);
+        this.rotor2 = Rotor.createRotor(machineTypeOffset + r2, rot2, ring2);
+        this.rotor3 = Rotor.createRotor(machineTypeOffset + r3, rot3, ring3);
+        this.reflector = Reflector.createReflector(machineTypeOffset);
+        this.reflector.setRotation(rotRef);
+        this.reflector.setRingSetting(ringRef);
+    }
+
+    @Override
+    public String stateToString()
+    {
+        String save = "";
+        long s = reflector.getRingSetting();
+        s = addDigit(s, reflector.getRotation(), 26);
+        s = addDigit(s, rotor3.getRingSetting(), 26);
+        s = addDigit(s, rotor3.getRotation(), 26);
+        s = addDigit(s, rotor2.getRingSetting(), 26);
+        s = addDigit(s, rotor2.getRotation(), 26);
+        s = addDigit(s, rotor1.getRingSetting(), 26);
+        s = addDigit(s, rotor1.getRotation(), 26);
+
+        s = addDigit(s, rotor3.getNumber(), 10);
+        s = addDigit(s, rotor2.getNumber(), 10);
+        s = addDigit(s, rotor1.getNumber(), 10);
+
+        s = addDigit(s, 3, 12); //Machine #3
+
+        save = save+s;
+        return save;
+    }
 }

app/src/main/java/de/vanitasvitae/enigmandroid/enigma/Enigma_G312.java

@@ -1,12 +1,5 @@
 package de.vanitasvitae.enigmandroid.enigma;
 
-import java.security.SecureRandom;
-import java.sql.Ref;
-import java.util.Random;
-
-import de.vanitasvitae.enigmandroid.enigma.rotors.Reflector;
-import de.vanitasvitae.enigmandroid.enigma.rotors.Rotor;
-
 /**
  * Implementation of the Enigma machine of type G31 (Abwehr)
  * Copyright (C) 2015  Paul Schaub
@@ -30,43 +23,30 @@ public class Enigma_G312 extends Enigma_G31
 {
     public Enigma_G312()
     {
-        super();
+        super(50);
         machineType = "G312";
     }
-    @Override
-    public void initialize()
-    {
-        this.entryWheel = Rotor.createRotor(1, 0, 0);
-        this.rotor1 = Rotor.createRotor(50, 0, 0);
-        this.rotor2 = Rotor.createRotor(51, 0, 0);
-        this.rotor3 = Rotor.createRotor(52, 0, 0);
-        this.reflector = Reflector.createReflector(50);
-    }
 
     @Override
-    public void randomState()
+    public String stateToString()
     {
-        Random rand = new SecureRandom();
+        String save = "";
+        long s = reflector.getRingSetting();
+        s = addDigit(s, reflector.getRotation(), 26);
+        s = addDigit(s, rotor3.getRingSetting(), 26);
+        s = addDigit(s, rotor3.getRotation(), 26);
+        s = addDigit(s, rotor2.getRingSetting(), 26);
+        s = addDigit(s, rotor2.getRotation(), 26);
+        s = addDigit(s, rotor1.getRingSetting(), 26);
+        s = addDigit(s, rotor1.getRotation(), 26);
 
-        int rotor1, rotor2=-1, rotor3=-1;
+        s = addDigit(s, rotor3.getNumber(), 10);
-        rotor1 = rand.nextInt(3);
+        s = addDigit(s, rotor2.getNumber(), 10);
-        while(rotor2 == -1 || rotor2 == rotor1) rotor2 = rand.nextInt(3);
+        s = addDigit(s, rotor1.getNumber(), 10);
-        rotor3 = 3 - rotor1 - rotor2;
 
-        int rot1 = rand.nextInt(26);
+        s = addDigit(s, 4, 12); //Machine #4
-        int rot2 = rand.nextInt(26);
-        int rot3 = rand.nextInt(26);
-        int rotRef = rand.nextInt(26);
-        int ring1 = rand.nextInt(26);
-        int ring2 = rand.nextInt(26);
-        int ring3 = rand.nextInt(26);
-        int ringRef = rand.nextInt(26);
 
-        this.rotor1 = Rotor.createRotor(50 + rotor1, rot1, ring1);
+        save = save+s;
-        this.rotor2 = Rotor.createRotor(50 + rotor2, rot2, ring2);
+        return save;
-        this.rotor3 = Rotor.createRotor(50 + rotor3, rot3, ring3);
-        this.reflector = Reflector.createReflector(50);
-        reflector.setRotation(rotRef);
-        reflector.setRingSetting(ringRef);
     }
 }

app/src/main/java/de/vanitasvitae/enigmandroid/enigma/Enigma_I.java

@@ -1,8 +1,5 @@
 package de.vanitasvitae.enigmandroid.enigma;
 
-import java.security.SecureRandom;
-import java.util.Random;
-
 import de.vanitasvitae.enigmandroid.enigma.rotors.Reflector;
 import de.vanitasvitae.enigmandroid.enigma.rotors.Rotor;
 
@@ -34,6 +31,7 @@ public class Enigma_I extends Enigma
     protected Reflector reflector;
 
     protected Plugboard plugboard;
+    protected static int machineTypeOffset = 10;
 
     public Enigma_I()
     {
@@ -45,10 +43,10 @@ public class Enigma_I extends Enigma
     public void initialize()
     {
         this.plugboard= new Plugboard();
-        this.rotor1 = Rotor.createRotor(10, 0, 0);
+        this.rotor1 = Rotor.createRotor(machineTypeOffset, 0, 0);
-        this.rotor2 = Rotor.createRotor(11, 0, 0);
+        this.rotor2 = Rotor.createRotor(machineTypeOffset+1, 0, 0);
-        this.rotor3 = Rotor.createRotor(12, 0, 0);
+        this.rotor3 = Rotor.createRotor(machineTypeOffset+2, 0, 0);
-        this.reflector = Reflector.createReflector(10);
+        this.reflector = Reflector.createReflector(machineTypeOffset);
     }
 
     @Override
@@ -67,10 +65,7 @@ public class Enigma_I extends Enigma
     }
 
     @Override
-    public void randomState()
+    protected void generateState() {
-    {
-        Random rand = new SecureRandom();
-
         int rotor1, rotor2=-1, rotor3=-1;
         rotor1 = rand.nextInt(5);
         while(rotor2 == -1 || rotor2 == rotor1) rotor2 = rand.nextInt(5);
@@ -84,10 +79,13 @@ public class Enigma_I extends Enigma
         int ring2 = rand.nextInt(26);
         int ring3 = rand.nextInt(26);
 
-        this.rotor1 = Rotor.createRotor(10 + rotor1, rot1, ring1);
+        this.rotor1 = Rotor.createRotor(machineTypeOffset + rotor1, rot1, ring1);
-        this.rotor2 = Rotor.createRotor(10 + rotor2, rot2, ring2);
+        this.rotor2 = Rotor.createRotor(machineTypeOffset + rotor2, rot2, ring2);
-        this.rotor3 = Rotor.createRotor(10 + rotor3, rot3, ring3);
+        this.rotor3 = Rotor.createRotor(machineTypeOffset + rotor3, rot3, ring3);
-        this.reflector = Reflector.createReflector(10 + ref);
+        this.reflector = Reflector.createReflector(machineTypeOffset + ref);
+
+        this.plugboard = new Plugboard();
+        plugboard.setConfiguration(Plugboard.seedToPlugboardConfiguration(rand));
     }
 
     @Override
@@ -151,4 +149,59 @@ public class Enigma_I extends Enigma
 
         return state;
     }
+
+    @Override
+    public void restoreState(String mem)
+    {
+        String plugboardConf = mem.substring(mem.lastIndexOf(":p") + 2);
+        long s = Long.valueOf(mem.substring(0, mem.indexOf(":p")));
+
+        s = removeDigit(s, 12);  //Remove machine type
+        int r1 = getValue(s, 10);
+        s = removeDigit(s, 10);
+        int r2 = getValue(s, 10);
+        s = removeDigit(s, 10);
+        int r3 = getValue(s, 10);
+        s = removeDigit(s, 10);
+        int ref = getValue(s, 10);
+        s = removeDigit(s, 10);
+        int rot1 = getValue(s, 26);
+        s = removeDigit(s, 26);
+        int ring1 = getValue(s, 26);
+        s = removeDigit(s, 26);
+        int rot2 = getValue(s, 26);
+        s = removeDigit(s, 26);
+        int ring2 = getValue(s, 26);
+        s = removeDigit(s, 26);
+        int rot3 = getValue(s, 26);
+        s = removeDigit(s, 26);
+        int ring3 = getValue(s, 26);
+
+        this.rotor1 = Rotor.createRotor(machineTypeOffset + r1, rot1, ring1);
+        this.rotor2 = Rotor.createRotor(machineTypeOffset + r2, rot2, ring2);
+        this.rotor3 = Rotor.createRotor(machineTypeOffset + r3, rot3, ring3);
+        this.reflector = Reflector.createReflector(machineTypeOffset + ref);
+
+        this.plugboard = new Plugboard();
+        plugboard.setConfiguration(Plugboard.stringToConfiguration(plugboardConf));
+    }
+
+    @Override
+    public String stateToString() {
+        String save = "";
+        long s = rotor3.getRingSetting();
+        s = addDigit(s, rotor3.getRotation(), 26);
+        s = addDigit(s, rotor2.getRingSetting(), 26);
+        s = addDigit(s, rotor2.getRotation(), 26);
+        s = addDigit(s, rotor1.getRingSetting(), 26);
+        s = addDigit(s, rotor1.getRotation(), 26);
+        s = addDigit(s, rotor3.getNumber(), 10);
+        s = addDigit(s, rotor2.getNumber(), 10);
+        s = addDigit(s, rotor1.getNumber(), 10);
+        s = addDigit(s, 0, 12); //Machine #0
+
+        save = save+s;
+        save = save + ":p" + Plugboard.configurationToString(getState().getConfigurationPlugboard());
+        return save;
+    }
 }

app/src/main/java/de/vanitasvitae/enigmandroid/enigma/Enigma_K.java

@@ -1,8 +1,12 @@
 package de.vanitasvitae.enigmandroid.enigma;
 
+import android.app.Activity;
+import android.util.Log;
+
 import java.security.SecureRandom;
 import java.util.Random;
 
+import de.vanitasvitae.enigmandroid.MainActivity;
 import de.vanitasvitae.enigmandroid.enigma.rotors.Reflector;
 import de.vanitasvitae.enigmandroid.enigma.rotors.Rotor;
 
@@ -34,19 +38,24 @@ public class Enigma_K extends Enigma
 
     protected Reflector reflector;
 
+    public Enigma_K(int off)
+    {
+        super(off);
+    }
+
     public Enigma_K()
     {
-        super();
+        super(80);
         machineType = "K";
     }
     @Override
     public void initialize()
     {
         this.entryWheel = Rotor.createRotor(1, 0, 0);
-        this.rotor1 = Rotor.createRotor(80, 0, 0);
+        this.rotor1 = Rotor.createRotor(machineTypeOffset, 0, 0);
-        this.rotor2 = Rotor.createRotor(81, 0, 0);
+        this.rotor2 = Rotor.createRotor(machineTypeOffset+1, 0, 0);
-        this.rotor3 = Rotor.createRotor(82, 0, 0);
+        this.rotor3 = Rotor.createRotor(machineTypeOffset+2, 0, 0);
-        this.reflector = Reflector.createReflector(80);
+        this.reflector = Reflector.createReflector(machineTypeOffset);
     }
 
     @Override
@@ -65,10 +74,7 @@ public class Enigma_K extends Enigma
     }
 
     @Override
-    public void randomState()
+    protected void generateState() {
-    {
-        Random rand = new SecureRandom();
-
         int rotor1, rotor2=-1, rotor3=-1;
         rotor1 = rand.nextInt(3);
         while(rotor2 == -1 || rotor2 == rotor1) rotor2 = rand.nextInt(3);
@@ -83,10 +89,10 @@ public class Enigma_K extends Enigma
         int ring3 = rand.nextInt(26);
         int ringRef = rand.nextInt(26);
 
-        this.rotor1 = Rotor.createRotor(80 + rotor1, rot1, ring1);
+        this.rotor1 = Rotor.createRotor(machineTypeOffset + rotor1, rot1, ring1);
-        this.rotor2 = Rotor.createRotor(80 + rotor2, rot2, ring2);
+        this.rotor2 = Rotor.createRotor(machineTypeOffset + rotor2, rot2, ring2);
-        this.rotor3 = Rotor.createRotor(80 + rotor3, rot3, ring3);
+        this.rotor3 = Rotor.createRotor(machineTypeOffset + rotor3, rot3, ring3);
-        this.reflector = Reflector.createReflector(80);
+        this.reflector = Reflector.createReflector(machineTypeOffset);
         reflector.setRotation(rotRef);
         reflector.setRingSetting(ringRef);
     }
@@ -155,4 +161,61 @@ public class Enigma_K extends Enigma
 
         return state;
     }
+
+    @Override
+    public void restoreState(String mem)
+    {
+        long s = Long.valueOf(mem);
+        s = removeDigit(s,12);  //Remove machine type
+        int r1 = getValue(s,10);
+        s = removeDigit(s,10);
+        int r2 = getValue(s,10);
+        s = removeDigit(s,10);
+        int r3 = getValue(s,10);
+        s = removeDigit(s,10);
+
+        int rot1 = getValue(s,26);
+        s = removeDigit(s,26);
+        int ring1 = getValue(s,26);
+        s = removeDigit(s,26);
+        int rot2 = getValue(s,26);
+        s = removeDigit(s,26);
+        int ring2 = getValue(s,26);
+        s = removeDigit(s,26);
+        int rot3 = getValue(s,26);
+        s = removeDigit(s,26);
+        int ring3 = getValue(s,26);
+        s = removeDigit(s,26);
+        int rotRef = getValue(s,26);
+        s = removeDigit(s,26);
+        int ringRef = getValue(s,26);
+
+        this.rotor1 = Rotor.createRotor(machineTypeOffset + r1, rot1, ring1);
+        this.rotor2 = Rotor.createRotor(machineTypeOffset + r2, rot2, ring2);
+        this.rotor3 = Rotor.createRotor(machineTypeOffset + r3, rot3, ring3);
+        this.reflector = Reflector.createReflector(machineTypeOffset);
+        this.reflector.setRotation(rotRef);
+        this.reflector.setRingSetting(ringRef);
+    }
+
+    @Override
+    public String stateToString()
+    {
+        String save = "";
+        long t = reflector.getRingSetting();
+        t = addDigit(t, reflector.getRotation(), 26);
+        t = addDigit(t, rotor3.getRingSetting(),26);
+        t = addDigit(t, rotor3.getRotation(), 26);
+        t = addDigit(t, rotor2.getRingSetting(),26);
+        t = addDigit(t, rotor2.getRotation(), 26);
+        t = addDigit(t, rotor1.getRingSetting(), 26);
+        t = addDigit(t, rotor1.getRotation(), 26);
+        t = addDigit(t, rotor3.getNumber(), 10);
+        t = addDigit(t, rotor2.getNumber(), 10);
+        t = addDigit(t, rotor1.getNumber(), 10);
+        t = addDigit(t, 7, 12); //Machine #7
+
+        save = save+t;
+        return save;
+    }
 }

app/src/main/java/de/vanitasvitae/enigmandroid/enigma/Enigma_K_Swiss_Airforce.java

@@ -27,131 +27,30 @@ import de.vanitasvitae.enigmandroid.enigma.rotors.Rotor;
  */
 public class Enigma_K_Swiss_Airforce extends Enigma_K
 {
-    protected Rotor entryWheel;
-    protected Rotor rotor1;
-    protected Rotor rotor2;
-    protected Rotor rotor3;
-
-    protected Reflector reflector;
-
     public Enigma_K_Swiss_Airforce()
     {
-        super();
+        super(100);
         machineType = "KSA";
     }
+
     @Override
-    public void initialize()
+    public String stateToString()
     {
-        this.entryWheel = Rotor.createRotor(1, 0, 0);
+        String save = "";
-        this.rotor1 = Rotor.createRotor(100, 0, 0);
+        long t = reflector.getRingSetting();
-        this.rotor2 = Rotor.createRotor(101, 0, 0);
+        t = addDigit(t, reflector.getRotation(), 26);
-        this.rotor3 = Rotor.createRotor(102, 0, 0);
+        t = addDigit(t, rotor3.getRingSetting(),26);
-        this.reflector = Reflector.createReflector(100);
+        t = addDigit(t, rotor3.getRotation(), 26);
-    }
+        t = addDigit(t, rotor2.getRingSetting(),26);
+        t = addDigit(t, rotor2.getRotation(), 26);
+        t = addDigit(t, rotor1.getRingSetting(), 26);
+        t = addDigit(t, rotor1.getRotation(), 26);
+        t = addDigit(t, rotor3.getNumber(), 10);
+        t = addDigit(t, rotor2.getNumber(), 10);
+        t = addDigit(t, rotor1.getNumber(), 10);
+        t = addDigit(t, 9, 12); //Machine #9
 
-    @Override
+        save = save+t;
-    public void nextState()
+        return save;
-    {
-        rotor1.rotate();
-        if (rotor1.isAtTurnoverPosition() || (this.doAnomaly && prefAnomaly))
-        {
-            rotor2.rotate();
-            this.doAnomaly = rotor2.doubleTurnAnomaly();
-            if (rotor2.isAtTurnoverPosition())
-            {
-                rotor3.rotate();
-            }
-        }
-    }
-
-    @Override
-    public void randomState()
-    {
-        Random rand = new SecureRandom();
-
-        int rotor1, rotor2=-1, rotor3=-1;
-        rotor1 = rand.nextInt(3);
-        while(rotor2 == -1 || rotor2 == rotor1) rotor2 = rand.nextInt(3);
-        rotor3 = 3 - rotor1 - rotor2;
-
-        int rot1 = rand.nextInt(26);
-        int rot2 = rand.nextInt(26);
-        int rot3 = rand.nextInt(26);
-        int rotRef = rand.nextInt(26);
-        int ring1 = rand.nextInt(26);
-        int ring2 = rand.nextInt(26);
-        int ring3 = rand.nextInt(26);
-        int ringRef = rand.nextInt(26);
-
-        this.rotor1 = Rotor.createRotor(100 + rotor1, rot1, ring1);
-        this.rotor2 = Rotor.createRotor(100 + rotor2, rot2, ring2);
-        this.rotor3 = Rotor.createRotor(100 + rotor3, rot3, ring3);
-        this.reflector = Reflector.createReflector(100);
-        reflector.setRotation(rotRef);
-        reflector.setRingSetting(ringRef);
-    }
-
-    @Override
-    public char encryptChar(char k) {
-        nextState();
-        int x = ((int) k)-65;   //Cast to int and remove Unicode Offset (A=65 in Unicode.)
-        //Encryption
-        //forward direction
-        x = entryWheel.encryptForward(x);
-        x = rotor1.normalize(x + rotor1.getRotation() - rotor1.getRingSetting());
-        x = rotor1.encryptForward(x);
-        x = rotor1.normalize(x - rotor1.getRotation() + rotor1.getRingSetting() + rotor2.getRotation() - rotor2.getRingSetting());
-        x = rotor2.encryptForward(x);
-        x = rotor1.normalize(x - rotor2.getRotation() + rotor2.getRingSetting() + rotor3.getRotation() - rotor3.getRingSetting());
-        x = rotor3.encryptForward(x);
-        x = rotor1.normalize(x - rotor3.getRotation() + rotor3.getRingSetting() + reflector.getRotation() - reflector.getRingSetting());
-        //backward direction
-        x = reflector.encrypt(x);
-        x = rotor1.normalize(x + rotor3.getRotation() - rotor3.getRingSetting() - reflector.getRotation() + reflector.getRingSetting());
-        x = rotor3.encryptBackward(x);
-        x = rotor1.normalize(x + rotor2.getRotation() - rotor2.getRingSetting() - rotor3.getRotation() + rotor3.getRingSetting());
-        x = rotor2.encryptBackward(x);
-        x = rotor1.normalize(x + rotor1.getRotation() - rotor1.getRingSetting() - rotor2.getRotation() + rotor2.getRingSetting());
-        x = rotor1.encryptBackward(x);
-        x = rotor1.normalize(x - rotor1.getRotation() + rotor1.getRingSetting());
-        x = entryWheel.encryptBackward(x);
-        return (char) (x + 65);     //Add Offset again, cast back to char and return
-    }
-
-    @Override
-    public void setState(EnigmaStateBundle state)
-    {
-        this.entryWheel = Rotor.createRotor(state.getTypeEntryWheel(), 0, 0);
-        this.rotor1 = Rotor.createRotor(state.getTypeRotor1(), state.getRotationRotor1(), state.getRingSettingRotor1());
-        this.rotor2 = Rotor.createRotor(state.getTypeRotor2(), state.getRotationRotor2(), state.getRingSettingRotor2());
-        this.rotor3 = Rotor.createRotor(state.getTypeRotor3(), state.getRotationRotor3(), state.getRingSettingRotor3());
-        this.reflector = Reflector.createReflector(state.getTypeReflector());
-        this.reflector.setRotation(state.getRotationReflector());
-        this.reflector.setRingSetting(state.getRingSettingReflector());
-    }
-
-    @Override
-    public EnigmaStateBundle getState() {
-        EnigmaStateBundle state = new EnigmaStateBundle();
-
-        state.setTypeEntryWheel(entryWheel.getNumber());
-
-        state.setTypeRotor1(rotor1.getNumber());
-        state.setTypeRotor2(rotor2.getNumber());
-        state.setTypeRotor3(rotor3.getNumber());
-
-        state.setRotationRotor1(rotor1.getRotation());
-        state.setRotationRotor2(rotor2.getRotation());
-        state.setRotationRotor3(rotor3.getRotation());
-
-        state.setRingSettingRotor1(rotor1.getRingSetting());
-        state.setRingSettingRotor2(rotor2.getRingSetting());
-        state.setRingSettingRotor3(rotor3.getRingSetting());
-
-        state.setTypeReflector(reflector.getNumber());
-        state.setRotationReflector(reflector.getRotation());
-        state.setRingSettingReflector(reflector.getRingSetting());
-
-        return state;
     }
 }

app/src/main/java/de/vanitasvitae/enigmandroid/enigma/Enigma_K_Swiss_Standard.java

@@ -27,131 +27,31 @@ import de.vanitasvitae.enigmandroid.enigma.rotors.Rotor;
  */
 public class Enigma_K_Swiss_Standard extends Enigma_K
 {
-    protected Rotor entryWheel;
-    protected Rotor rotor1;
-    protected Rotor rotor2;
-    protected Rotor rotor3;
-
-    protected Reflector reflector;
-
     public Enigma_K_Swiss_Standard()
     {
-        super();
+        super(90);
         machineType = "KS";
     }
+
     @Override
-    public void initialize()
+    public String stateToString()
     {
-        this.entryWheel = Rotor.createRotor(1, 0, 0);
+        String save = "";
-        this.rotor1 = Rotor.createRotor(90, 0, 0);
+        long t = reflector.getRingSetting();
-        this.rotor2 = Rotor.createRotor(91, 0, 0);
+        t = addDigit(t, reflector.getRotation(), 26);
-        this.rotor3 = Rotor.createRotor(92, 0, 0);
+        t = addDigit(t, rotor3.getRingSetting(),26);
-        this.reflector = Reflector.createReflector(90);
+        t = addDigit(t, rotor3.getRotation(), 26);
+        t = addDigit(t, rotor2.getRingSetting(),26);
+        t = addDigit(t, rotor2.getRotation(), 26);
+        t = addDigit(t, rotor1.getRingSetting(), 26);
+        t = addDigit(t, rotor1.getRotation(), 26);
+        t = addDigit(t, rotor3.getNumber(), 10);
+        t = addDigit(t, rotor2.getNumber(), 10);
+        t = addDigit(t, rotor1.getNumber(), 10);
+        t = addDigit(t, 8, 12); //Machine #8
+
+        save = save+t;
+        return save;
     }
 
-    @Override
-    public void nextState()
-    {
-        rotor1.rotate();
-        if (rotor1.isAtTurnoverPosition() || (this.doAnomaly && prefAnomaly))
-        {
-            rotor2.rotate();
-            this.doAnomaly = rotor2.doubleTurnAnomaly();
-            if (rotor2.isAtTurnoverPosition())
-            {
-                rotor3.rotate();
-            }
-        }
-    }
-
-    @Override
-    public void randomState()
-    {
-        Random rand = new SecureRandom();
-
-        int rotor1, rotor2=-1, rotor3=-1;
-        rotor1 = rand.nextInt(3);
-        while(rotor2 == -1 || rotor2 == rotor1) rotor2 = rand.nextInt(3);
-        rotor3 = 3 - rotor1 - rotor2;
-
-        int rot1 = rand.nextInt(26);
-        int rot2 = rand.nextInt(26);
-        int rot3 = rand.nextInt(26);
-        int rotRef = rand.nextInt(26);
-        int ring1 = rand.nextInt(26);
-        int ring2 = rand.nextInt(26);
-        int ring3 = rand.nextInt(26);
-        int ringRef = rand.nextInt(26);
-
-        this.rotor1 = Rotor.createRotor(90 + rotor1, rot1, ring1);
-        this.rotor2 = Rotor.createRotor(90 + rotor2, rot2, ring2);
-        this.rotor3 = Rotor.createRotor(90 + rotor3, rot3, ring3);
-        this.reflector = Reflector.createReflector(90);
-        reflector.setRotation(rotRef);
-        reflector.setRingSetting(ringRef);
-    }
-
-    @Override
-    public char encryptChar(char k) {
-        nextState();
-        int x = ((int) k)-65;   //Cast to int and remove Unicode Offset (A=65 in Unicode.)
-        //Encryption
-        //forward direction
-        x = entryWheel.encryptForward(x);
-        x = rotor1.normalize(x + rotor1.getRotation() - rotor1.getRingSetting());
-        x = rotor1.encryptForward(x);
-        x = rotor1.normalize(x - rotor1.getRotation() + rotor1.getRingSetting() + rotor2.getRotation() - rotor2.getRingSetting());
-        x = rotor2.encryptForward(x);
-        x = rotor1.normalize(x - rotor2.getRotation() + rotor2.getRingSetting() + rotor3.getRotation() - rotor3.getRingSetting());
-        x = rotor3.encryptForward(x);
-        x = rotor1.normalize(x - rotor3.getRotation() + rotor3.getRingSetting() + reflector.getRotation() - reflector.getRingSetting());
-        //backward direction
-        x = reflector.encrypt(x);
-        x = rotor1.normalize(x + rotor3.getRotation() - rotor3.getRingSetting() - reflector.getRotation() + reflector.getRingSetting());
-        x = rotor3.encryptBackward(x);
-        x = rotor1.normalize(x + rotor2.getRotation() - rotor2.getRingSetting() - rotor3.getRotation() + rotor3.getRingSetting());
-        x = rotor2.encryptBackward(x);
-        x = rotor1.normalize(x + rotor1.getRotation() - rotor1.getRingSetting() - rotor2.getRotation() + rotor2.getRingSetting());
-        x = rotor1.encryptBackward(x);
-        x = rotor1.normalize(x - rotor1.getRotation() + rotor1.getRingSetting());
-        x = entryWheel.encryptBackward(x);
-        return (char) (x + 65);     //Add Offset again, cast back to char and return
-    }
-
-    @Override
-    public void setState(EnigmaStateBundle state)
-    {
-        this.entryWheel = Rotor.createRotor(state.getTypeEntryWheel(), 0, 0);
-        this.rotor1 = Rotor.createRotor(state.getTypeRotor1(), state.getRotationRotor1(), state.getRingSettingRotor1());
-        this.rotor2 = Rotor.createRotor(state.getTypeRotor2(), state.getRotationRotor2(), state.getRingSettingRotor2());
-        this.rotor3 = Rotor.createRotor(state.getTypeRotor3(), state.getRotationRotor3(), state.getRingSettingRotor3());
-        this.reflector = Reflector.createReflector(state.getTypeReflector());
-        this.reflector.setRotation(state.getRotationReflector());
-        this.reflector.setRingSetting(state.getRingSettingReflector());
-    }
-
-    @Override
-    public EnigmaStateBundle getState() {
-        EnigmaStateBundle state = new EnigmaStateBundle();
-
-        state.setTypeEntryWheel(entryWheel.getNumber());
-
-        state.setTypeRotor1(rotor1.getNumber());
-        state.setTypeRotor2(rotor2.getNumber());
-        state.setTypeRotor3(rotor3.getNumber());
-
-        state.setRotationRotor1(rotor1.getRotation());
-        state.setRotationRotor2(rotor2.getRotation());
-        state.setRotationRotor3(rotor3.getRotation());
-
-        state.setRingSettingRotor1(rotor1.getRingSetting());
-        state.setRingSettingRotor2(rotor2.getRingSetting());
-        state.setRingSettingRotor3(rotor3.getRingSetting());
-
-        state.setTypeReflector(reflector.getNumber());
-        state.setRotationReflector(reflector.getRotation());
-        state.setRingSettingReflector(reflector.getRingSetting());
-
-        return state;
-    }
 }

app/src/main/java/de/vanitasvitae/enigmandroid/enigma/Enigma_M3.java

@@ -28,25 +28,16 @@ import de.vanitasvitae.enigmandroid.enigma.rotors.Rotor;
  */
 public class Enigma_M3 extends Enigma_I
 {
+    protected static int machineTypeOffset = 20;
+
     public Enigma_M3()
     {
+        super();
         machineType = "M3";
     }
-    @Override
-    public void initialize()
-    {
-        this.plugboard = new Plugboard();
-        this.rotor1 = Rotor.createRotor(20, 0, 0);
-        this.rotor2 = Rotor.createRotor(21, 0, 0);
-        this.rotor3 = Rotor.createRotor(22, 0, 0);
-        this.reflector = Reflector.createReflector(20);
-    }
 
     @Override
-    public void randomState()
+    protected void generateState() {
-    {
-        Random rand = new SecureRandom();
-
         int rotor1, rotor2=-1, rotor3=-1;
         rotor1 = rand.nextInt(8);
         while(rotor2 == -1 || rotor2 == rotor1) rotor2 = rand.nextInt(8);
@@ -60,9 +51,31 @@ public class Enigma_M3 extends Enigma_I
         int ring2 = rand.nextInt(26);
         int ring3 = rand.nextInt(26);
 
-        this.rotor1 = Rotor.createRotor(20 + rotor1, rot1, ring1);
+        this.rotor1 = Rotor.createRotor(machineTypeOffset + rotor1, rot1, ring1);
-        this.rotor2 = Rotor.createRotor(20 + rotor2, rot2, ring2);
+        this.rotor2 = Rotor.createRotor(machineTypeOffset + rotor2, rot2, ring2);
-        this.rotor3 = Rotor.createRotor(20 + rotor3, rot3, ring3);
+        this.rotor3 = Rotor.createRotor(machineTypeOffset + rotor3, rot3, ring3);
-        this.reflector = Reflector.createReflector(20 + ref);
+        this.reflector = Reflector.createReflector(machineTypeOffset + ref);
+
+        this.plugboard = new Plugboard();
+        plugboard.setConfiguration(Plugboard.seedToPlugboardConfiguration(rand));
+    }
+
+    @Override
+    public String stateToString() {
+        String save = "";
+        long s = rotor3.getRingSetting();
+        s = addDigit(s, rotor3.getRotation(), 26);
+        s = addDigit(s, rotor2.getRingSetting(), 26);
+        s = addDigit(s, rotor2.getRotation(), 26);
+        s = addDigit(s, rotor1.getRingSetting(), 26);
+        s = addDigit(s, rotor1.getRotation(), 26);
+        s = addDigit(s, rotor3.getNumber(), 10);
+        s = addDigit(s, rotor2.getNumber(), 10);
+        s = addDigit(s, rotor1.getNumber(), 10);
+        s = addDigit(s, 1, 12); //Machine #1
+
+        save = save+s;
+        save = save + ":p" + Plugboard.configurationToString(getState().getConfigurationPlugboard());
+        return save;
     }
 }

app/src/main/java/de/vanitasvitae/enigmandroid/enigma/Enigma_M4.java

@@ -3,6 +3,7 @@ package de.vanitasvitae.enigmandroid.enigma;
 import java.security.SecureRandom;
 import java.util.Random;
 
+import de.vanitasvitae.enigmandroid.MainActivity;
 import de.vanitasvitae.enigmandroid.enigma.rotors.Reflector;
 import de.vanitasvitae.enigmandroid.enigma.rotors.Rotor;
 
@@ -36,6 +37,8 @@ public class Enigma_M4 extends Enigma
 
     private Plugboard plugboard;
 
+    protected static int machineTypeOffset = 30;
+
     public Enigma_M4()
     {
         super();
@@ -46,12 +49,13 @@ public class Enigma_M4 extends Enigma
     public void initialize()
     {
         this.plugboard = new Plugboard();
-        this.rotor1 = Rotor.createRotor(30, 0, 0);
+        this.rotor1 = Rotor.createRotor(machineTypeOffset, 0, 0);
-        this.rotor2 = Rotor.createRotor(31, 0, 0);
+        this.rotor2 = Rotor.createRotor(machineTypeOffset+1, 0, 0);
-        this.rotor3 = Rotor.createRotor(32, 0, 0);
+        this.rotor3 = Rotor.createRotor(machineTypeOffset+2, 0, 0);
-        this.rotor4 = Rotor.createRotor(38, 0, 0);
+        this.rotor4 = Rotor.createRotor(machineTypeOffset + 8, 0, 0);
-        this.reflector = Reflector.createReflector(30);
+        this.reflector = Reflector.createReflector(machineTypeOffset);
-        this.prefAnomaly = true;
+        this.prefAnomaly = ((MainActivity) MainActivity.ActivitySingleton.getInstance()
+                .getActivity()).getPrefAnomaly();
     }
 
     @Override
@@ -79,17 +83,14 @@ public class Enigma_M4 extends Enigma
     }
 
     @Override
-    public void randomState()
+    protected void generateState() {
-    {
+        int r1, r2=-1, r3=-1;
-        Random rand = new SecureRandom();
+        int r4;
-
-        int rotor1, rotor2=-1, rotor3=-1;
-        int rotor4;
         int ref;
-        rotor1 = rand.nextInt(8);
+        r1 = rand.nextInt(8);
-        while(rotor2 == -1 || rotor2 == rotor1) rotor2 = rand.nextInt(8);
+        while(r2 == -1 || r2 == r1) r2 = rand.nextInt(8);
-        while(rotor3 == -1 || rotor3 == rotor2 || rotor3 == rotor1) rotor3 = rand.nextInt(8);
+        while(r3 == -1 || r3 == r2 || r3 == r1) r3 = rand.nextInt(8);
-        rotor4 = rand.nextInt(2);
+        r4 = rand.nextInt(2);
         ref = rand.nextInt(2);
 
         int rot1 = rand.nextInt(26);
@@ -103,13 +104,17 @@ public class Enigma_M4 extends Enigma
         int ring4 = rand.nextInt(26);
         int ringRef = rand.nextInt(26);
 
-        this.rotor1 = Rotor.createRotor(30 + rotor1, rot1, ring1);
+        this.rotor1 = Rotor.createRotor(machineTypeOffset + r1, rot1, ring1);
-        this.rotor2 = Rotor.createRotor(30 + rotor2, rot2, ring2);
+        this.rotor2 = Rotor.createRotor(machineTypeOffset + r2, rot2, ring2);
-        this.rotor3 = Rotor.createRotor(30 + rotor3, rot3, ring3);
+        this.rotor3 = Rotor.createRotor(machineTypeOffset + r3, rot3, ring3);
-        this.rotor4 = Rotor.createRotor(38 + rotor4, rot4, ring4);
+        this.rotor4 = Rotor.createRotor(machineTypeOffset + 8 + r4, rot4, ring4);
-        this.reflector = Reflector.createReflector(30 + ref);
+
-        reflector.setRotation(rotRef);
+        this.reflector = Reflector.createReflector(machineTypeOffset + ref);
-        reflector.setRingSetting(ringRef);
+        this.reflector.setRotation(rotRef);
+        this.reflector.setRingSetting(ringRef);
+
+        this.plugboard = new Plugboard();
+        this.plugboard.setConfiguration(Plugboard.seedToPlugboardConfiguration(rand));
     }
 
     @Override
@@ -189,4 +194,82 @@ public class Enigma_M4 extends Enigma
 
         return state;
     }
+
+    @Override
+    public void restoreState(String mem)
+    {
+        String plugboardConf = mem.substring(mem.lastIndexOf(":p") + 2);
+        long s = Long.valueOf(mem.substring(0, mem.indexOf(":p")));
+
+        s = (s-(s%12))/12;  //Remove machine type
+
+        int r1 = getValue(s, 10);
+        s = removeDigit(s, 10);
+        int r2 = getValue(s, 10);
+        s = removeDigit(s,10);
+        int r3 = getValue(s, 10);
+        s = removeDigit(s,10);
+        int r4 = getValue(s, 10);
+        s = removeDigit(s,10);
+        int ref = getValue(s, 10);
+        s = removeDigit(s,10);
+
+        int rot1 = getValue(s, 26);
+        s = removeDigit(s,26);
+        int ring1 = getValue(s, 26);
+        s = removeDigit(s,26);
+        int rot2 = getValue(s, 26);
+        s = removeDigit(s,26);
+        int ring2 = getValue(s, 26);
+        s = removeDigit(s,26);
+        int rot3 = getValue(s, 26);
+        s = removeDigit(s,26);
+        int ring3 = getValue(s, 26);
+        s = removeDigit(s,26);
+        int rot4 = getValue(s, 26);
+        s = removeDigit(s,26);
+        int ring4 = getValue(s, 26);
+        s = removeDigit(s,26);
+        int rotRef = getValue(s, 26);
+        s = removeDigit(s,26);
+        int ringRef = getValue(s, 26);
+
+        this.rotor1 = Rotor.createRotor(machineTypeOffset + r1, rot1, ring1);
+        this.rotor2 = Rotor.createRotor(machineTypeOffset + r2, rot2, ring2);
+        this.rotor3 = Rotor.createRotor(machineTypeOffset + r3, rot3, ring3);
+        this.rotor4 = Rotor.createRotor(machineTypeOffset + r4, rot4, ring4);
+        this.reflector = Reflector.createReflector(machineTypeOffset + ref);
+        this.reflector.setRotation(rotRef);
+        this.reflector.setRingSetting(ringRef);
+
+        this.plugboard = new Plugboard();
+        plugboard.setConfiguration(Plugboard.stringToConfiguration(plugboardConf));
+    }
+
+    @Override
+    public String stateToString() {
+        String save = "";
+        long s = reflector.getRingSetting();
+        s = addDigit(s, reflector.getRotation(), 26);
+        s = addDigit(s, rotor4.getRingSetting(), 26);
+        s = addDigit(s, rotor4.getRotation(), 26);
+        s = addDigit(s, rotor3.getRingSetting(), 26);
+        s = addDigit(s, rotor3.getRotation(), 26);
+        s = addDigit(s, rotor2.getRingSetting(), 26);
+        s = addDigit(s, rotor2.getRotation(), 26);
+        s = addDigit(s, rotor1.getRingSetting(), 26);
+        s = addDigit(s, rotor1.getRotation(), 26);
+
+        s = addDigit(s, reflector.getNumber(), 10);
+        s = addDigit(s, rotor4.getNumber(), 10);
+        s = addDigit(s, rotor3.getNumber(), 10);
+        s = addDigit(s, rotor2.getNumber(), 10);
+        s = addDigit(s, rotor1.getNumber(), 10);
+
+        s = addDigit(s, 2, 12);
+
+        save = save+s;
+        save = save + ":p" + Plugboard.configurationToString(getState().getConfigurationPlugboard());
+        return save;
+    }
 }

app/src/main/java/de/vanitasvitae/enigmandroid/enigma/Enigma_R.java

@@ -34,6 +34,8 @@ public class Enigma_R extends Enigma
 
     protected Reflector reflector;
 
+    protected static int machineTypeOffset = 110;
+
     public Enigma_R()
     {
         super();
@@ -43,10 +45,10 @@ public class Enigma_R extends Enigma
     public void initialize()
     {
         this.entryWheel = Rotor.createRotor(1, 0, 0);
-        this.rotor1 = Rotor.createRotor(110, 0, 0);
+        this.rotor1 = Rotor.createRotor(machineTypeOffset, 0, 0);
-        this.rotor2 = Rotor.createRotor(111, 0, 0);
+        this.rotor2 = Rotor.createRotor(machineTypeOffset+1, 0, 0);
-        this.rotor3 = Rotor.createRotor(112, 0, 0);
+        this.rotor3 = Rotor.createRotor(machineTypeOffset+2, 0, 0);
-        this.reflector = Reflector.createReflector(110);
+        this.reflector = Reflector.createReflector(machineTypeOffset);
     }
 
     @Override
@@ -65,10 +67,8 @@ public class Enigma_R extends Enigma
     }
 
     @Override
-    public void randomState()
+    protected void generateState()
     {
-        Random rand = new SecureRandom();
-
         int rotor1, rotor2=-1, rotor3=-1;
         rotor1 = rand.nextInt(3);
         while(rotor2 == -1 || rotor2 == rotor1) rotor2 = rand.nextInt(3);
@@ -83,10 +83,10 @@ public class Enigma_R extends Enigma
         int ring3 = rand.nextInt(26);
         int ringRef = rand.nextInt(26);
 
-        this.rotor1 = Rotor.createRotor(110 + rotor1, rot1, ring1);
+        this.rotor1 = Rotor.createRotor(machineTypeOffset + rotor1, rot1, ring1);
-        this.rotor2 = Rotor.createRotor(110 + rotor2, rot2, ring2);
+        this.rotor2 = Rotor.createRotor(machineTypeOffset + rotor2, rot2, ring2);
-        this.rotor3 = Rotor.createRotor(110 + rotor3, rot3, ring3);
+        this.rotor3 = Rotor.createRotor(machineTypeOffset + rotor3, rot3, ring3);
-        this.reflector = Reflector.createReflector(110);
+        this.reflector = Reflector.createReflector(machineTypeOffset);
         reflector.setRotation(rotRef);
         reflector.setRingSetting(ringRef);
     }
@@ -154,4 +154,61 @@ public class Enigma_R extends Enigma
 
         return state;
     }
+
+    @Override
+    public void restoreState(String mem)
+    {
+        long s = Long.valueOf(mem);
+        s = removeDigit(s,12);  //Remove machine type
+        int r1 = getValue(s,10);
+        s = removeDigit(s,10);
+        int r2 = getValue(s,10);
+        s = removeDigit(s,10);
+        int r3 = getValue(s,10);
+        s = removeDigit(s,10);
+
+        int rot1 = getValue(s,26);
+        s = removeDigit(s,26);
+        int ring1 = getValue(s,26);
+        s = removeDigit(s,26);
+        int rot2 = getValue(s,26);
+        s = removeDigit(s,26);
+        int ring2 = getValue(s,26);
+        s = removeDigit(s,26);
+        int rot3 = getValue(s,26);
+        s = removeDigit(s,26);
+        int ring3 = getValue(s,26);
+        s = removeDigit(s,26);
+        int rotRef = getValue(s,26);
+        s = removeDigit(s,26);
+        int ringRef = getValue(s,26);
+
+        this.rotor1 = Rotor.createRotor(machineTypeOffset + r1, rot1, ring1);
+        this.rotor2 = Rotor.createRotor(machineTypeOffset + r2, rot2, ring2);
+        this.rotor3 = Rotor.createRotor(machineTypeOffset + r3, rot3, ring3);
+        this.reflector = Reflector.createReflector(machineTypeOffset);
+        this.reflector.setRotation(rotRef);
+        this.reflector.setRingSetting(ringRef);
+    }
+
+    @Override
+    public String stateToString()
+    {
+        String save = "";
+        long t = reflector.getRingSetting();
+        t = addDigit(t, reflector.getRotation(), 26);
+        t = addDigit(t, rotor3.getRingSetting(),26);
+        t = addDigit(t, rotor3.getRotation(), 26);
+        t = addDigit(t, rotor2.getRingSetting(),26);
+        t = addDigit(t, rotor2.getRotation(), 26);
+        t = addDigit(t, rotor1.getRingSetting(), 26);
+        t = addDigit(t, rotor1.getRotation(), 26);
+        t = addDigit(t, rotor3.getNumber(), 10);
+        t = addDigit(t, rotor2.getNumber(), 10);
+        t = addDigit(t, rotor1.getNumber(), 10);
+        t = addDigit(t, 10, 12); //Machine #10
+
+        save = save+t;
+        return save;
+    }
 }

app/src/main/java/de/vanitasvitae/enigmandroid/enigma/Enigma_T.java

@@ -35,6 +35,8 @@ public class Enigma_T extends Enigma
     protected Rotor rotor3;
     protected Reflector reflector;
 
+    protected static int machineTypeOffset = 120;
+
     public Enigma_T()
     {
         super();
@@ -44,10 +46,10 @@ public class Enigma_T extends Enigma
     @Override
     public void initialize() {
         this.entryWheel = Rotor.createRotor(2,0,0);
-        this.rotor1 = Rotor.createRotor(120, 0, 0);
+        this.rotor1 = Rotor.createRotor(machineTypeOffset, 0, 0);
-        this.rotor2 = Rotor.createRotor(121, 0, 0);
+        this.rotor2 = Rotor.createRotor(machineTypeOffset+1, 0, 0);
-        this.rotor3 = Rotor.createRotor(122, 0, 0);
+        this.rotor3 = Rotor.createRotor(machineTypeOffset+2, 0, 0);
-        this.reflector = Reflector.createReflector(120);
+        this.reflector = Reflector.createReflector(machineTypeOffset);
     }
 
     @Override
@@ -66,10 +68,7 @@ public class Enigma_T extends Enigma
     }
 
     @Override
-    public void randomState()
+    protected void generateState() {
-    {
-        Random rand = new SecureRandom();
-
         int rotor1, rotor2=-1, rotor3=-1;
         rotor1 = rand.nextInt(8);
         while(rotor2 == -1 || rotor2 == rotor1) rotor2 = rand.nextInt(8);
@@ -84,10 +83,10 @@ public class Enigma_T extends Enigma
         int ring3 = rand.nextInt(26);
         int ringRef = rand.nextInt(26);
 
-        this.rotor1 = Rotor.createRotor(120 + rotor1, rot1, ring1);
+        this.rotor1 = Rotor.createRotor(machineTypeOffset + rotor1, rot1, ring1);
-        this.rotor2 = Rotor.createRotor(120 + rotor2, rot2, ring2);
+        this.rotor2 = Rotor.createRotor(machineTypeOffset + rotor2, rot2, ring2);
-        this.rotor3 = Rotor.createRotor(120 + rotor3, rot3, ring3);
+        this.rotor3 = Rotor.createRotor(machineTypeOffset + rotor3, rot3, ring3);
-        this.reflector = Reflector.createReflector(120);
+        this.reflector = Reflector.createReflector(machineTypeOffset);
         reflector.setRotation(rotRef);
         reflector.setRingSetting(ringRef);
     }
@@ -155,5 +154,60 @@ public class Enigma_T extends Enigma
         return state;
     }
 
+    @Override
+    public void restoreState(String mem)
+    {
+        long s = Long.valueOf(mem);
+        s = removeDigit(s,12);  //Remove machine type
+        int r1 = getValue(s,10);
+        s = removeDigit(s,10);
+        int r2 = getValue(s,10);
+        s = removeDigit(s,10);
+        int r3 = getValue(s,10);
+        s = removeDigit(s,10);
 
+        int rot1 = getValue(s,26);
+        s = removeDigit(s,26);
+        int ring1 = getValue(s,26);
+        s = removeDigit(s,26);
+        int rot2 = getValue(s,26);
+        s = removeDigit(s,26);
+        int ring2 = getValue(s,26);
+        s = removeDigit(s,26);
+        int rot3 = getValue(s,26);
+        s = removeDigit(s,26);
+        int ring3 = getValue(s,26);
+        s = removeDigit(s,26);
+        int rotRef = getValue(s,26);
+        s = removeDigit(s,26);
+        int ringRef = getValue(s,26);
+
+        this.rotor1 = Rotor.createRotor(machineTypeOffset + r1, rot1, ring1);
+        this.rotor2 = Rotor.createRotor(machineTypeOffset + r2, rot2, ring2);
+        this.rotor3 = Rotor.createRotor(machineTypeOffset + r3, rot3, ring3);
+        this.reflector = Reflector.createReflector(machineTypeOffset);
+        this.reflector.setRotation(rotRef);
+        this.reflector.setRingSetting(ringRef);
+    }
+
+    @Override
+    public String stateToString()
+    {
+        String save = "";
+        long t = reflector.getRingSetting();
+        t = addDigit(t, reflector.getRotation(), 26);
+        t = addDigit(t, rotor3.getRingSetting(),26);
+        t = addDigit(t, rotor3.getRotation(), 26);
+        t = addDigit(t, rotor2.getRingSetting(),26);
+        t = addDigit(t, rotor2.getRotation(), 26);
+        t = addDigit(t, rotor1.getRingSetting(), 26);
+        t = addDigit(t, rotor1.getRotation(), 26);
+        t = addDigit(t, rotor3.getNumber(), 10);
+        t = addDigit(t, rotor2.getNumber(), 10);
+        t = addDigit(t, rotor1.getNumber(), 10);
+        t = addDigit(t, 11, 12); //Machine #11
+
+        save = save+t;
+        return save;
+    }
 }

app/src/main/java/de/vanitasvitae/enigmandroid/enigma/Plugboard.java

@@ -1,5 +1,9 @@
 package de.vanitasvitae.enigmandroid.enigma;
 
+import java.util.Random;
+
+import de.vanitasvitae.enigmandroid.enigma.inputPreparer.InputPreparer;
+
 /**
  * Plugboard of the enigma
  * Copyright (C) 2015  Paul Schaub
@@ -53,4 +57,115 @@ public class Plugboard
     {
         return plugs[(input+plugs.length)%plugs.length];
     }
+
+    /**
+     * Interpret a String of Pairs as a configuration for the plugboard
+     * Any char with an even index is connected to the successor.
+     * in must not contain duplicates!
+     * @param in String representation of pairs (eg. AXBHCS...)
+     * @return connections as int[]
+     */
+    public static int[] stringToConfiguration(String in)
+    {
+        String pairs = trimString(new InputPreparer.RemoveIllegalCharacters().prepareString(in));
+        int[] out = empty;
+        //Check if in is too long or odd
+        if(pairs.length() > 26 || pairs.length()/2 == (pairs.length()-1)/2)
+        {
+            //Odd length. remove last char. Information loss!
+            pairs = pairs.substring(0,pairs.length()-1);
+        }
+        //Modify out
+        for(int i=0; i<pairs.length()/2; i++)
+        {
+            int a = (int) (pairs.toCharArray()[i*2])-65;
+            int b = (int) (pairs.toCharArray()[(i*2)+1])-65;
+            out[a] = b;
+            out[b] = a;
+        }
+        return out;
+    }
+
+    /**
+     * Remove all duplicate chars x from the String except the first appearance of x.
+     * String MUST be in upper case!
+     * @param in String
+     * @return String
+     */
+    private static String trimString(String in)
+    {
+        in = in.toUpperCase();
+        for(int i=0; i<26; i++)
+        {
+            char x = (char)(i+65);
+            int index = in.indexOf(""+x);
+            if(index != in.lastIndexOf(""+x))
+            {
+                //Remove all duplicates of x
+                in = in.substring(0, index) + in.substring(index+1).replace(""+x,"");
+            }
+        }
+        return in;
+    }
+
+    /**
+     * Generate a configuration from a seeded PRNG.
+     * Not all connections have to be done.
+     * @param rand Seeded PRNG
+     * @return configuration
+     */
+    public static int[] seedToPlugboardConfiguration(Random rand)
+    {
+        int connectionCount = rand.nextInt(14); //0..13
+        int[] out = empty;
+        for(int i=0; i<connectionCount; i++)
+        {
+            int rA = rand.nextInt(26);
+            while(out[rA] != rA) rA = (rA+1)%26;
+            int rB = rand.nextInt(26);
+            while(out[rB] != rB) rB = (rB+1)%26;
+            out[rA] = rB;
+            out[rB] = rA;
+        }
+        return out;
+    }
+
+    /**
+     * Generate a configuration with full set of connections from a seeded PRNG
+     * @param rand Seeded PRNG
+     * @return configuration
+     */
+    public static int[] seedToReflectorConfiguration(Random rand)
+    {
+        int[] out = empty;
+        for(int i=0; i<empty.length; i++)
+        {
+            int rA = rand.nextInt(26);
+            while(out[rA] != rA) rA = (rA+1)%26;
+            int rB = rand.nextInt(26);
+            while(out[rB] != rB) rB = (rB+1)%26;
+            out[rA] = rB;
+            out[rB] = rA;
+        }
+        return out;
+    }
+
+    /**
+     * Converts a configurations array back to a String representation
+     * @param c array
+     * @return String representation
+     */
+    public static String configurationToString(int[] c)
+    {
+        String out = "";
+        for(int i=0; i<c.length; i++) // c.length = 26 (mostly)
+        {
+            if(c[i] != i && out.indexOf((char)(c[i])+65)==-1)
+            {
+                out += (char) (i+65);
+                out += (char) (c[i]+65);
+            }
+        }
+        return out;
+    }
 }

app/src/main/java/de/vanitasvitae/enigmandroid/enigma/rotors/Reflector.java

@@ -2,6 +2,11 @@ package de.vanitasvitae.enigmandroid.enigma.rotors;
 
 import android.util.Log;
 
+import java.util.Random;
+
+import de.vanitasvitae.enigmandroid.MainActivity;
+import de.vanitasvitae.enigmandroid.enigma.inputPreparer.InputPreparer;
+
 /**
  * Reflector of the enigma machine.
  * The reflector was used to reflect the scrambled signal at the end of the wiring back to
@@ -31,7 +36,7 @@ public class Reflector
     protected int rotation;
     protected int ringSetting;
 
-    public static final int[] defaultWiring_D_KD_G31 = {8,12,4,19,2,6,5,17,0,24,18,16,1,25,23,22,11,7,10,3,21,20,15,14,9,13};
+    public static final int[] defaultWiring_D_KD_G31 =  {8,12,4,19,2,6,5,17,0,24,18,16,1,25,23,22,11,7,10,3,21,20,15,14,9,13};
 
     /**
      * This constructor is not accessible from outside this class file.
@@ -95,6 +100,7 @@ public class Reflector
      */
     public static Reflector createReflector(int type)
     {
+        Log.d(MainActivity.APP_ID, "Reflectorcreation: "+type);
         switch (type)
         {
             //Enigma I
@@ -138,7 +144,7 @@ public class Reflector
             case 120: return new ReflectorEnigma_T().setNumber(type);
 
             default:
-                Log.e("Reflector:"," Tried to create Reflector of invalid type "+type);
+                Log.e(MainActivity.APP_ID," Tried to create Reflector of invalid type "+type);
                 return null;
         }
     }
@@ -336,5 +342,4 @@ public class Reflector
             super("Ref-R", new int[]{16,24,7,14,6,13,4,2,21,15,20,25,19,5,3,9,0,23,22,12,10,8,18,17,1,11});
         }
     }
-
 }

app/src/main/java/de/vanitasvitae/enigmandroid/enigma/rotors/Rotor.java

@@ -2,6 +2,8 @@ package de.vanitasvitae.enigmandroid.enigma.rotors;
 
 import android.util.Log;
 
+import de.vanitasvitae.enigmandroid.MainActivity;
+
 /**
  * Rotor super class and inner concrete implementations
  * The rotors were the key feature of the enigma used to scramble up input signals into
@@ -82,6 +84,7 @@ public class Rotor
      */
     public static Rotor createRotor(int type, int rotation, int ringSetting)
     {
+        Log.d(MainActivity.APP_ID, "Rotorcreation: "+type);
         switch (type)
         {
             case 1: return new EntryWheel_QWERTZ().setTypeNumber(type);
@@ -166,7 +169,7 @@ public class Rotor
             case 126: return new Rotor_T_VII(rotation, ringSetting).setTypeNumber(type);
             case 127: return new Rotor_T_VIII(rotation, ringSetting).setTypeNumber(type);
 
-            default: Log.e("Rotor:"," Tried to create Rotor of invalid type "+type);
+            default: Log.e(MainActivity.APP_ID," Tried to create Rotor of invalid type "+type);
                 return null;
         }
     }

app/src/main/java/de/vanitasvitae/enigmandroid/layout/LayoutContainer.java

@@ -42,25 +42,17 @@ public abstract class LayoutContainer
     protected InputPreparer inputPreparer;
     protected MainActivity main;
 
-    protected EnigmaStateBundle state;
-
     public abstract Enigma getEnigma();
     protected abstract void initializeLayout();
     public abstract void resetLayout();
     public abstract void setLayoutState(EnigmaStateBundle state);
-    protected abstract void refreshState();
+    public abstract void syncStateFromLayoutToEnigma();
+    public void syncStateFromEnigmaToLayout()
+    {
+        this.setLayoutState(getEnigma().getState());
+    }
     public abstract void showRingSettingsDialog();
 
-    public LayoutContainer(EnigmaStateBundle state)
-    {
-        main = (MainActivity) MainActivity.ActivitySingleton.getInstance().getActivity();
-        this.inputView = (EditText) main.findViewById(R.id.input);
-        this.outputView = (EditText) main.findViewById(R.id.output);
-        input = EditTextAdapter.createEditTextAdapter(inputView, main.getPrefMessageFormatting());
-        output = EditTextAdapter.createEditTextAdapter(outputView, main.getPrefMessageFormatting());
-        initializeLayout();
-        this.state = state;
-    }
     public LayoutContainer()
     {
         main = (MainActivity) MainActivity.ActivitySingleton.getInstance().getActivity();
@@ -75,7 +67,8 @@ public abstract class LayoutContainer
     {
         if(inputView.getText().length()!=0)
         {
-            getEnigma().setState(getState());
+
+            syncStateFromLayoutToEnigma();
             String message = inputView.getText().toString();
             message = inputPreparer.prepareString(message);
             input.setText(message);
@@ -84,17 +77,6 @@ public abstract class LayoutContainer
         }
     }
 
-    public EnigmaStateBundle getState()
-    {
-        refreshState();
-        return state;
-    }
-
-    public void setState(EnigmaStateBundle state)
-    {
-        this.state = state;
-    }
-
     public EditTextAdapter getInput()
     {
         return this.input;

app/src/main/java/de/vanitasvitae/enigmandroid/layout/LayoutContainer_D.java

@@ -56,7 +56,7 @@ public class LayoutContainer_D extends LayoutContainer
         reflectorWiring.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View v) {
-                new PluggableDialogBuilder(state).showDialogReflector();
+                new PluggableDialogBuilder(getEnigma().getState()).showDialogReflector();
             }
         });
 
@@ -81,7 +81,6 @@ public class LayoutContainer_D extends LayoutContainer
     @Override
     public void setLayoutState(EnigmaStateBundle state)
     {
-        this.state = state;
         this.rotor1PositionView.setSelection(state.getRotationRotor1());
         this.rotor2PositionView.setSelection(state.getRotationRotor2());
         this.rotor3PositionView.setSelection(state.getRotationRotor3());
@@ -89,12 +88,14 @@ public class LayoutContainer_D extends LayoutContainer
     }
 
     @Override
-    protected void refreshState()
+    public void syncStateFromLayoutToEnigma()
     {
+        EnigmaStateBundle state = getEnigma().getState();
         state.setRotationRotor1(rotor1PositionView.getSelectedItemPosition());
         state.setRotationRotor2(rotor2PositionView.getSelectedItemPosition());
         state.setRotationRotor3(rotor3PositionView.getSelectedItemPosition());
         state.setRotationReflector(reflectorPositionView.getSelectedItemPosition());
+        getEnigma().setState(state);
     }
 
     public Enigma_D getEnigma()
@@ -106,6 +107,6 @@ public class LayoutContainer_D extends LayoutContainer
     public void showRingSettingsDialog()
     {
         new RingSettingsDialogBuilder.RingSettingsDialogBuilderRotRotRotRef().
-                createRingSettingsDialog(state);
+                createRingSettingsDialog(getEnigma().getState());
     }
 }

app/src/main/java/de/vanitasvitae/enigmandroid/layout/LayoutContainer_G260.java

@@ -28,55 +28,17 @@ import de.vanitasvitae.enigmandroid.enigma.Enigma_G260;
  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  * @author vanitasvitae
  */
-public class LayoutContainer_G260 extends LayoutContainer
+public class LayoutContainer_G260 extends LayoutContainer_G31
 {
-    private Enigma_G260 enigma;
+    protected static int offsetRot = 60;
-
-    protected int offsetRot = 60;
-
-    protected Spinner rotor1View;
-    protected Spinner rotor2View;
-    protected Spinner rotor3View;
-
-    protected Spinner rotor1PositionView;
-    protected Spinner rotor2PositionView;
-    protected Spinner rotor3PositionView;
-    protected Spinner reflectorPositionView;
 
     public LayoutContainer_G260()
     {
-        super();
+        super(60);
         main.setTitle("G260 - EnigmAndroid");
         this.resetLayout();
     }
 
-    @Override
-    public Enigma getEnigma() {
-        return this.enigma;
-    }
-
-    @Override
-    protected void initializeLayout() {
-        this.rotor1View = (Spinner) main.findViewById(R.id.rotor1);
-        this.rotor2View = (Spinner) main.findViewById(R.id.rotor2);
-        this.rotor3View = (Spinner) main.findViewById(R.id.rotor3);
-        this.rotor1PositionView = (Spinner) main.findViewById(R.id.rotor1position);
-        this.rotor2PositionView = (Spinner) main.findViewById(R.id.rotor2position);
-        this.rotor3PositionView = (Spinner) main.findViewById(R.id.rotor3position);
-        this.reflectorPositionView = (Spinner) main.findViewById(R.id.reflector_position);
-
-        Character[] rotorPositionArray = new Character[26];
-        for(int i=0; i<26; i++) {rotorPositionArray[i] = (char) (65+i); /*Fill with A..Z*/}
-
-        prepareSpinnerAdapter(rotor1View, R.array.rotors_1_3);
-        prepareSpinnerAdapter(rotor2View, R.array.rotors_1_3);
-        prepareSpinnerAdapter(rotor3View, R.array.rotors_1_3);
-        prepareSpinnerAdapter(rotor1PositionView, rotorPositionArray);
-        prepareSpinnerAdapter(rotor2PositionView, rotorPositionArray);
-        prepareSpinnerAdapter(rotor3PositionView, rotorPositionArray);
-        prepareSpinnerAdapter(reflectorPositionView, rotorPositionArray);
-    }
-
     @Override
     public void resetLayout() {
         enigma = new Enigma_G260();
@@ -84,36 +46,4 @@ public class LayoutContainer_G260 extends LayoutContainer
         output.setText("");
         input.setText("");
     }
-
-    @Override
-    public void setLayoutState(EnigmaStateBundle state)
-    {
-        this.state = state;
-        this.rotor1View.setSelection(state.getTypeRotor1() - offsetRot);
-        this.rotor2View.setSelection(state.getTypeRotor2() - offsetRot);
-        this.rotor3View.setSelection(state.getTypeRotor3() - offsetRot);
-        this.rotor1PositionView.setSelection(state.getRotationRotor1());
-        this.rotor2PositionView.setSelection(state.getRotationRotor2());
-        this.rotor3PositionView.setSelection(state.getRotationRotor3());
-        this.reflectorPositionView.setSelection(state.getRotationReflector());
-    }
-
-    @Override
-    protected void refreshState()
-    {
-        state.setTypeRotor1(rotor1View.getSelectedItemPosition() + offsetRot);
-        state.setTypeRotor2(rotor2View.getSelectedItemPosition() + offsetRot);
-        state.setTypeRotor3(rotor3View.getSelectedItemPosition() + offsetRot);
-        state.setRotationRotor1(rotor1PositionView.getSelectedItemPosition());
-        state.setRotationRotor2(rotor2PositionView.getSelectedItemPosition());
-        state.setRotationRotor3(rotor3PositionView.getSelectedItemPosition());
-        state.setRotationReflector(reflectorPositionView.getSelectedItemPosition());
-    }
-
-    @Override
-    public void showRingSettingsDialog()
-    {
-        new RingSettingsDialogBuilder.RingSettingsDialogBuilderRotRotRotRef().
-                createRingSettingsDialog(state);
-    }
 }

app/src/main/java/de/vanitasvitae/enigmandroid/layout/LayoutContainer_G31.java

@@ -30,7 +30,7 @@ import de.vanitasvitae.enigmandroid.enigma.Enigma_G31;
  */
 public class LayoutContainer_G31 extends LayoutContainer
 {
-    private Enigma_G31 enigma;
+    protected Enigma enigma;
 
     protected int offsetRot = 40;
 
@@ -43,6 +43,12 @@ public class LayoutContainer_G31 extends LayoutContainer
     protected Spinner rotor3PositionView;
     protected Spinner reflectorPositionView;
 
+    public LayoutContainer_G31(int off)
+    {
+        super();
+        this.offsetRot = off;
+    }
+
     public LayoutContainer_G31()
     {
         super();
@@ -88,7 +94,6 @@ public class LayoutContainer_G31 extends LayoutContainer
     @Override
     public void setLayoutState(EnigmaStateBundle state)
     {
-        this.state = state;
         this.rotor1View.setSelection(state.getTypeRotor1() - offsetRot);
         this.rotor2View.setSelection(state.getTypeRotor2() - offsetRot);
         this.rotor3View.setSelection(state.getTypeRotor3() - offsetRot);
@@ -99,8 +104,9 @@ public class LayoutContainer_G31 extends LayoutContainer
     }
 
     @Override
-    protected void refreshState()
+    public void syncStateFromLayoutToEnigma()
     {
+        EnigmaStateBundle state = getEnigma().getState();
         state.setTypeRotor1(rotor1View.getSelectedItemPosition() + offsetRot);
         state.setTypeRotor2(rotor2View.getSelectedItemPosition() + offsetRot);
         state.setTypeRotor3(rotor3View.getSelectedItemPosition() + offsetRot);
@@ -108,12 +114,13 @@ public class LayoutContainer_G31 extends LayoutContainer
         state.setRotationRotor2(rotor2PositionView.getSelectedItemPosition());
         state.setRotationRotor3(rotor3PositionView.getSelectedItemPosition());
         state.setRotationReflector(reflectorPositionView.getSelectedItemPosition());
+        getEnigma().setState(state);
     }
 
     @Override
     public void showRingSettingsDialog()
     {
         new RingSettingsDialogBuilder.RingSettingsDialogBuilderRotRotRotRef().
-                createRingSettingsDialog(state);
+                createRingSettingsDialog(getEnigma().getState());
     }
 }

app/src/main/java/de/vanitasvitae/enigmandroid/layout/LayoutContainer_G312.java

@@ -28,55 +28,15 @@ import de.vanitasvitae.enigmandroid.enigma.Enigma_G312;
  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  * @author vanitasvitae
  */
-public class LayoutContainer_G312 extends LayoutContainer
+public class LayoutContainer_G312 extends LayoutContainer_G31
 {
-    private Enigma_G312 enigma;
-
-    protected int offsetRot = 50;
-
-    protected Spinner rotor1View;
-    protected Spinner rotor2View;
-    protected Spinner rotor3View;
-
-    protected Spinner rotor1PositionView;
-    protected Spinner rotor2PositionView;
-    protected Spinner rotor3PositionView;
-    protected Spinner reflectorPositionView;
-
     public LayoutContainer_G312()
     {
-        super();
+        super(50);
         main.setTitle("G312 - EnigmAndroid");
         this.resetLayout();
     }
 
-    @Override
-    public Enigma getEnigma() {
-        return this.enigma;
-    }
-
-    @Override
-    protected void initializeLayout() {
-        this.rotor1View = (Spinner) main.findViewById(R.id.rotor1);
-        this.rotor2View = (Spinner) main.findViewById(R.id.rotor2);
-        this.rotor3View = (Spinner) main.findViewById(R.id.rotor3);
-        this.rotor1PositionView = (Spinner) main.findViewById(R.id.rotor1position);
-        this.rotor2PositionView = (Spinner) main.findViewById(R.id.rotor2position);
-        this.rotor3PositionView = (Spinner) main.findViewById(R.id.rotor3position);
-        this.reflectorPositionView = (Spinner) main.findViewById(R.id.reflector_position);
-
-        Character[] rotorPositionArray = new Character[26];
-        for(int i=0; i<26; i++) {rotorPositionArray[i] = (char) (65+i); /*Fill with A..Z*/}
-
-        prepareSpinnerAdapter(rotor1View, R.array.rotors_1_3);
-        prepareSpinnerAdapter(rotor2View, R.array.rotors_1_3);
-        prepareSpinnerAdapter(rotor3View, R.array.rotors_1_3);
-        prepareSpinnerAdapter(rotor1PositionView, rotorPositionArray);
-        prepareSpinnerAdapter(rotor2PositionView, rotorPositionArray);
-        prepareSpinnerAdapter(rotor3PositionView, rotorPositionArray);
-        prepareSpinnerAdapter(reflectorPositionView, rotorPositionArray);
-    }
-
     @Override
     public void resetLayout() {
         enigma = new Enigma_G312();
@@ -84,36 +44,4 @@ public class LayoutContainer_G312 extends LayoutContainer
         output.setText("");
         input.setText("");
     }
-
-    @Override
-    public void setLayoutState(EnigmaStateBundle state)
-    {
-        this.state = state;
-        this.rotor1View.setSelection(state.getTypeRotor1() - offsetRot);
-        this.rotor2View.setSelection(state.getTypeRotor2() - offsetRot);
-        this.rotor3View.setSelection(state.getTypeRotor3() - offsetRot);
-        this.rotor1PositionView.setSelection(state.getRotationRotor1());
-        this.rotor2PositionView.setSelection(state.getRotationRotor2());
-        this.rotor3PositionView.setSelection(state.getRotationRotor3());
-        this.reflectorPositionView.setSelection(state.getRotationReflector());
-    }
-
-    @Override
-    protected void refreshState()
-    {
-        state.setTypeRotor1(rotor1View.getSelectedItemPosition() + offsetRot);
-        state.setTypeRotor2(rotor2View.getSelectedItemPosition() + offsetRot);
-        state.setTypeRotor3(rotor3View.getSelectedItemPosition() + offsetRot);
-        state.setRotationRotor1(rotor1PositionView.getSelectedItemPosition());
-        state.setRotationRotor2(rotor2PositionView.getSelectedItemPosition());
-        state.setRotationRotor3(rotor3PositionView.getSelectedItemPosition());
-        state.setRotationReflector(reflectorPositionView.getSelectedItemPosition());
-    }
-
-    @Override
-    public void showRingSettingsDialog()
-    {
-        new RingSettingsDialogBuilder.RingSettingsDialogBuilderRotRotRotRef().
-                createRingSettingsDialog(state);
-    }
 }

app/src/main/java/de/vanitasvitae/enigmandroid/layout/LayoutContainer_I.java

@@ -62,7 +62,7 @@ public class LayoutContainer_I extends LayoutContainer
         setPlugboardButton.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View v) {
-                new PluggableDialogBuilder(state).showDialogPlugboard();
+                new PluggableDialogBuilder(getEnigma().getState()).showDialogPlugboard();
             }
         });
 
@@ -90,7 +90,6 @@ public class LayoutContainer_I extends LayoutContainer
     @Override
     public void setLayoutState(EnigmaStateBundle state)
     {
-        this.state = state;
         this.rotor1View.setSelection(state.getTypeRotor1() - 10);
         this.rotor2View.setSelection(state.getTypeRotor2() - 10);
         this.rotor3View.setSelection(state.getTypeRotor3() - 10);
@@ -101,8 +100,9 @@ public class LayoutContainer_I extends LayoutContainer
     }
 
     @Override
-    protected void refreshState()
+    public void syncStateFromLayoutToEnigma()
     {
+        EnigmaStateBundle state = getEnigma().getState();
         state.setTypeRotor1(rotor1View.getSelectedItemPosition() + 10);
         state.setTypeRotor2(rotor2View.getSelectedItemPosition() + 10);
         state.setTypeRotor3(rotor3View.getSelectedItemPosition() + 10);
@@ -110,6 +110,7 @@ public class LayoutContainer_I extends LayoutContainer
         state.setRotationRotor1(rotor1PositionView.getSelectedItemPosition());
         state.setRotationRotor2(rotor2PositionView.getSelectedItemPosition());
         state.setRotationRotor3(rotor3PositionView.getSelectedItemPosition());
+        getEnigma().setState(state);
     }
 
     public Enigma_I getEnigma()
@@ -121,6 +122,6 @@ public class LayoutContainer_I extends LayoutContainer
     public void showRingSettingsDialog()
     {
         new RingSettingsDialogBuilder.RingSettingsDialogBuilderRotRotRot().
-                createRingSettingsDialog(state);
+                createRingSettingsDialog(getEnigma().getState());
     }
 }

app/src/main/java/de/vanitasvitae/enigmandroid/layout/LayoutContainer_K.java

@@ -88,7 +88,6 @@ public class LayoutContainer_K extends LayoutContainer
     @Override
     public void setLayoutState(EnigmaStateBundle state)
     {
-        this.state = state;
         this.rotor1View.setSelection(state.getTypeRotor1() - 80);
         this.rotor2View.setSelection(state.getTypeRotor2() - 80);
         this.rotor3View.setSelection(state.getTypeRotor3() - 80);
@@ -99,8 +98,9 @@ public class LayoutContainer_K extends LayoutContainer
     }
 
     @Override
-    protected void refreshState()
+    public void syncStateFromLayoutToEnigma()
     {
+        EnigmaStateBundle state = getEnigma().getState();
         state.setTypeRotor1(rotor1View.getSelectedItemPosition() + 80);
         state.setTypeRotor2(rotor2View.getSelectedItemPosition() + 80);
         state.setTypeRotor3(rotor3View.getSelectedItemPosition() + 80);
@@ -108,12 +108,13 @@ public class LayoutContainer_K extends LayoutContainer
         state.setRotationRotor2(rotor2PositionView.getSelectedItemPosition());
         state.setRotationRotor3(rotor3PositionView.getSelectedItemPosition());
         state.setRotationReflector(reflectorPositionView.getSelectedItemPosition());
+        getEnigma().setState(state);
     }
 
     @Override
     public void showRingSettingsDialog()
     {
         new RingSettingsDialogBuilder.RingSettingsDialogBuilderRotRotRotRef().
-                createRingSettingsDialog(state);
+                createRingSettingsDialog(getEnigma().getState());
     }
 }

app/src/main/java/de/vanitasvitae/enigmandroid/layout/LayoutContainer_K_Swiss.java

@@ -88,7 +88,6 @@ public class LayoutContainer_K_Swiss extends LayoutContainer
     @Override
     public void setLayoutState(EnigmaStateBundle state)
     {
-        this.state = state;
         this.rotor1View.setSelection(state.getTypeRotor1() - 90);
         this.rotor2View.setSelection(state.getTypeRotor2() - 90);
         this.rotor3View.setSelection(state.getTypeRotor3() - 90);
@@ -99,8 +98,9 @@ public class LayoutContainer_K_Swiss extends LayoutContainer
     }
 
     @Override
-    protected void refreshState()
+    public void syncStateFromLayoutToEnigma()
     {
+        EnigmaStateBundle state = getEnigma().getState();
         state.setTypeRotor1(rotor1View.getSelectedItemPosition() + 90);
         state.setTypeRotor2(rotor2View.getSelectedItemPosition() + 90);
         state.setTypeRotor3(rotor3View.getSelectedItemPosition() + 90);
@@ -108,12 +108,13 @@ public class LayoutContainer_K_Swiss extends LayoutContainer
         state.setRotationRotor2(rotor2PositionView.getSelectedItemPosition());
         state.setRotationRotor3(rotor3PositionView.getSelectedItemPosition());
         state.setRotationReflector(reflectorPositionView.getSelectedItemPosition());
+        getEnigma().setState(state);
     }
 
     @Override
     public void showRingSettingsDialog()
     {
         new RingSettingsDialogBuilder.RingSettingsDialogBuilderRotRotRotRef().
-                createRingSettingsDialog(state);
+                createRingSettingsDialog(getEnigma().getState());
     }
 }

app/src/main/java/de/vanitasvitae/enigmandroid/layout/LayoutContainer_K_Swiss_Airforce.java

@@ -88,7 +88,6 @@ public class LayoutContainer_K_Swiss_Airforce extends LayoutContainer
     @Override
     public void setLayoutState(EnigmaStateBundle state)
     {
-        this.state = state;
         this.rotor1View.setSelection(state.getTypeRotor1() - 100);
         this.rotor2View.setSelection(state.getTypeRotor2() - 100);
         this.rotor3View.setSelection(state.getTypeRotor3() - 100);
@@ -99,8 +98,9 @@ public class LayoutContainer_K_Swiss_Airforce extends LayoutContainer
     }
 
     @Override
-    protected void refreshState()
+    public void syncStateFromLayoutToEnigma()
     {
+        EnigmaStateBundle state = getEnigma().getState();
         state.setTypeRotor1(rotor1View.getSelectedItemPosition() + 100);
         state.setTypeRotor2(rotor2View.getSelectedItemPosition() + 100);
         state.setTypeRotor3(rotor3View.getSelectedItemPosition() + 100);
@@ -108,12 +108,13 @@ public class LayoutContainer_K_Swiss_Airforce extends LayoutContainer
         state.setRotationRotor2(rotor2PositionView.getSelectedItemPosition());
         state.setRotationRotor3(rotor3PositionView.getSelectedItemPosition());
         state.setRotationReflector(reflectorPositionView.getSelectedItemPosition());
+        getEnigma().setState(state);
     }
 
     @Override
     public void showRingSettingsDialog()
     {
         new RingSettingsDialogBuilder.RingSettingsDialogBuilderRotRotRotRef().
-                createRingSettingsDialog(state);
+                createRingSettingsDialog(getEnigma().getState());
     }
 }

app/src/main/java/de/vanitasvitae/enigmandroid/layout/LayoutContainer_M3.java

@@ -54,7 +54,7 @@ public class LayoutContainer_M3 extends LayoutContainer_I
         setPlugboardButton.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View v) {
-                new PluggableDialogBuilder(state).showDialogPlugboard();
+                new PluggableDialogBuilder(getEnigma().getState()).showDialogPlugboard();
             }
         });
 
@@ -82,7 +82,6 @@ public class LayoutContainer_M3 extends LayoutContainer_I
     @Override
     public void setLayoutState(EnigmaStateBundle state)
     {
-        this.state = state;
         this.rotor1View.setSelection(state.getTypeRotor1() - 20);
         this.rotor2View.setSelection(state.getTypeRotor2() - 20);
         this.rotor3View.setSelection(state.getTypeRotor3() - 20);
@@ -93,8 +92,9 @@ public class LayoutContainer_M3 extends LayoutContainer_I
     }
 
     @Override
-    protected void refreshState()
+    public void syncStateFromLayoutToEnigma()
     {
+        EnigmaStateBundle state = getEnigma().getState();
         state.setTypeRotor1(rotor1View.getSelectedItemPosition() + 20);
         state.setTypeRotor2(rotor2View.getSelectedItemPosition() + 20);
         state.setTypeRotor3(rotor3View.getSelectedItemPosition() + 20);
@@ -102,6 +102,7 @@ public class LayoutContainer_M3 extends LayoutContainer_I
         state.setRotationRotor1(rotor1PositionView.getSelectedItemPosition());
         state.setRotationRotor2(rotor2PositionView.getSelectedItemPosition());
         state.setRotationRotor3(rotor3PositionView.getSelectedItemPosition());
+        getEnigma().setState(state);
     }
 
     @Override

app/src/main/java/de/vanitasvitae/enigmandroid/layout/LayoutContainer_M4.java

@@ -72,7 +72,7 @@ public class LayoutContainer_M4 extends LayoutContainer
         setPlugboardButton.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View v) {
-                new PluggableDialogBuilder(state).showDialogPlugboard();
+                new PluggableDialogBuilder(getEnigma().getState()).showDialogPlugboard();
             }
         });
 
@@ -100,7 +100,6 @@ public class LayoutContainer_M4 extends LayoutContainer
 
     @Override
     public void setLayoutState(EnigmaStateBundle state) {
-        this.state = state;
         this.rotor1View.setSelection(state.getTypeRotor1() - 30);
         this.rotor2View.setSelection(state.getTypeRotor2() - 30);
         this.rotor3View.setSelection(state.getTypeRotor3() - 30);
@@ -113,7 +112,8 @@ public class LayoutContainer_M4 extends LayoutContainer
     }
 
     @Override
-    protected void refreshState() {
+    public void syncStateFromLayoutToEnigma() {
+        EnigmaStateBundle state = getEnigma().getState();
         state.setTypeRotor1(rotor1View.getSelectedItemPosition() + 30);
         state.setTypeRotor2(rotor2View.getSelectedItemPosition() + 30);
         state.setTypeRotor3(rotor3View.getSelectedItemPosition() + 30);
@@ -123,12 +123,13 @@ public class LayoutContainer_M4 extends LayoutContainer
         state.setRotationRotor2(rotor2PositionView.getSelectedItemPosition());
         state.setRotationRotor3(rotor3PositionView.getSelectedItemPosition());
         state.setRotationRotor4(rotor4PositionView.getSelectedItemPosition());
+        getEnigma().setState(state);
     }
 
     @Override
     public void showRingSettingsDialog()
     {
         new RingSettingsDialogBuilder.RingSettingsDialogBuilderRotRotRotRot().
-                createRingSettingsDialog(state);
+                createRingSettingsDialog(getEnigma().getState());
     }
 }

app/src/main/java/de/vanitasvitae/enigmandroid/layout/LayoutContainer_R.java

@@ -86,7 +86,6 @@ public class LayoutContainer_R extends LayoutContainer
     @Override
     public void setLayoutState(EnigmaStateBundle state)
     {
-        this.state = state;
         this.rotor1View.setSelection(state.getTypeRotor1() - 110);
         this.rotor2View.setSelection(state.getTypeRotor2() - 110);
         this.rotor3View.setSelection(state.getTypeRotor3() - 110);
@@ -97,8 +96,9 @@ public class LayoutContainer_R extends LayoutContainer
     }
 
     @Override
-    protected void refreshState()
+    public void syncStateFromLayoutToEnigma()
     {
+        EnigmaStateBundle state = getEnigma().getState();
         state.setTypeRotor1(rotor1View.getSelectedItemPosition() + 110);
         state.setTypeRotor2(rotor2View.getSelectedItemPosition() + 110);
         state.setTypeRotor3(rotor3View.getSelectedItemPosition() + 110);
@@ -106,12 +106,13 @@ public class LayoutContainer_R extends LayoutContainer
         state.setRotationRotor2(rotor2PositionView.getSelectedItemPosition());
         state.setRotationRotor3(rotor3PositionView.getSelectedItemPosition());
         state.setRotationReflector(reflectorPositionView.getSelectedItemPosition());
+        getEnigma().setState(state);
     }
 
     @Override
     public void showRingSettingsDialog()
     {
         new RingSettingsDialogBuilder.RingSettingsDialogBuilderRotRotRotRef().
-                createRingSettingsDialog(state);
+                createRingSettingsDialog(getEnigma().getState());
     }
 }

app/src/main/java/de/vanitasvitae/enigmandroid/layout/LayoutContainer_T.java

@@ -1,6 +1,5 @@
 package de.vanitasvitae.enigmandroid.layout;
 
-import android.widget.ArrayAdapter;
 import android.widget.Spinner;
 
 import de.vanitasvitae.enigmandroid.R;
@@ -86,7 +85,6 @@ public class LayoutContainer_T extends LayoutContainer
     @Override
     public void setLayoutState(EnigmaStateBundle state)
     {
-        this.state = state;
         this.rotor1View.setSelection(state.getTypeRotor1() - 120);
         this.rotor2View.setSelection(state.getTypeRotor2() - 120);
         this.rotor3View.setSelection(state.getTypeRotor3() - 120);
@@ -98,8 +96,9 @@ public class LayoutContainer_T extends LayoutContainer
     }
 
     @Override
-    protected void refreshState()
+    public void syncStateFromLayoutToEnigma()
     {
+        EnigmaStateBundle state = getEnigma().getState();
         state.setTypeRotor1(rotor1View.getSelectedItemPosition() + 120);
         state.setTypeRotor2(rotor2View.getSelectedItemPosition() + 120);
         state.setTypeRotor3(rotor3View.getSelectedItemPosition() + 120);
@@ -107,12 +106,13 @@ public class LayoutContainer_T extends LayoutContainer
         state.setRotationRotor2(rotor2PositionView.getSelectedItemPosition());
         state.setRotationRotor3(rotor3PositionView.getSelectedItemPosition());
         state.setRotationReflector(reflectorPositionView.getSelectedItemPosition());
+        getEnigma().setState(state);
     }
 
     @Override
     public void showRingSettingsDialog()
     {
         new RingSettingsDialogBuilder.RingSettingsDialogBuilderRotRotRotRef().
-                createRingSettingsDialog(state);
+                createRingSettingsDialog(getEnigma().getState());
     }
 }

app/src/main/java/de/vanitasvitae/enigmandroid/layout/PassphraseDialogBuilder.java

@@ -0,0 +1,99 @@
+package de.vanitasvitae.enigmandroid.layout;
+
+import android.app.AlertDialog;
+import android.app.Dialog;
+import android.content.DialogInterface;
+import android.text.Editable;
+import android.text.TextWatcher;
+import android.util.Log;
+import android.view.View;
+import android.widget.ArrayAdapter;
+import android.widget.Button;
+import android.widget.EditText;
+import android.widget.Spinner;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import de.vanitasvitae.enigmandroid.MainActivity;
+import de.vanitasvitae.enigmandroid.R;
+import de.vanitasvitae.enigmandroid.enigma.EnigmaStateBundle;
+
+/**
+ * Builder for the dialog that is used to get settings for the rings
+ * Copyright (C) 2015  Paul Schaub
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation, Inc.,
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ * @author vanitasvitae
+ */
+public class PassphraseDialogBuilder
+{
+    MainActivity main;
+    View passphraseDialogView;
+    EditText passphrase;
+    Button positive;
+    public PassphraseDialogBuilder()
+    {
+        main = (MainActivity) MainActivity.ActivitySingleton.getInstance().getActivity();
+        passphraseDialogView = View.inflate(main, R.layout.dialog_passphrase, null);
+        passphrase = (EditText) passphraseDialogView.findViewById(R.id.passphrase);
+        passphrase.addTextChangedListener(new TextWatcher() {
+            @Override
+            public void beforeTextChanged(CharSequence s, int start, int count, int after) {
+
+            }
+
+            @Override
+            public void onTextChanged(CharSequence s, int start, int before, int count) {
+
+            }
+
+            @Override
+            public void afterTextChanged(Editable s) {
+                if(s.length() > 0) positive.setEnabled(true);
+                else positive.setEnabled(false);
+            }
+        });
+    }
+
+    public void showDialog()
+    {
+
+        AlertDialog.Builder builder = new AlertDialog.Builder(main);
+        builder.setTitle(R.string.hint_passphrase);
+        Dialog d = builder.setView(passphraseDialogView)
+                .setCancelable(true)
+                .setPositiveButton(R.string.dialog_positiv, new DialogInterface.OnClickListener()
+                {
+                    public void onClick(DialogInterface dialog, int id)
+                    {
+                        String pass = passphrase.getText().toString();
+                        main.createStateFromSeed(pass);
+                        String message = main.getResources().getString(R.string.dialog_passphrase_set)
+                                +" \'" + pass + "\'";
+                        Toast.makeText(main, message, Toast.LENGTH_LONG).show();
+                    }
+                })
+                .setNegativeButton(R.string.dialog_negativ, new DialogInterface.OnClickListener() {
+                    public void onClick(DialogInterface dialog, int id) {
+                        dialog.cancel();
+                        Toast.makeText(main, R.string.dialog_abort,
+                                Toast.LENGTH_SHORT).show();
+                    }
+                }).create();
+        d.show();
+        positive = ((AlertDialog)d).getButton(AlertDialog.BUTTON_POSITIVE);
+        positive.setEnabled(false);
+    }
+}

app/src/main/java/de/vanitasvitae/enigmandroid/layout/PluggableDialogBuilder.java

@@ -3,7 +3,6 @@ package de.vanitasvitae.enigmandroid.layout;
 import android.app.AlertDialog;
 import android.app.Dialog;
 import android.content.DialogInterface;
-import android.graphics.drawable.Drawable;
 import android.util.Log;
 import android.view.View;
 import android.view.WindowManager;
@@ -13,7 +12,6 @@ import android.widget.Toast;
 import java.util.ArrayList;
 import java.util.HashSet;
 import java.util.Iterator;
-import java.util.Objects;
 
 import de.vanitasvitae.enigmandroid.MainActivity;
 import de.vanitasvitae.enigmandroid.R;
@@ -45,6 +43,9 @@ public class PluggableDialogBuilder
     protected MainActivity main;
     protected EnigmaStateBundle state;
 
+    protected boolean allowIncompleteConnections;
+    protected Button positive;
+
     protected HashSet<Integer> colors;
 
     protected int previouslyPressedButton = -1;
@@ -59,6 +60,7 @@ public class PluggableDialogBuilder
 
     public void showDialogPlugboard()
     {
+        allowIncompleteConnections = true;
         restoreConfigurationPlugboard();
         AlertDialog.Builder adb = new AlertDialog.Builder(main);
         adb.setTitle(R.string.title_plugboard_dialog);
@@ -71,6 +73,7 @@ public class PluggableDialogBuilder
                             plugs[i] = buttons.get(i).getConnectedButton();
                         }
                         state.setConfigurationPlugboard(plugs);
+                        main.onDialogFinished(state);
                         Toast.makeText(main.getApplication(), R.string.dialog_plugboard_set, Toast.LENGTH_SHORT).show();
                     }
                 })
@@ -92,6 +95,7 @@ public class PluggableDialogBuilder
 
     public void showDialogReflector()
     {
+        allowIncompleteConnections = false;
         restoreConfigurationReflector();
         AlertDialog.Builder adb = new AlertDialog.Builder(main);
         adb.setTitle(R.string.title_reflector_dialog);
@@ -104,6 +108,7 @@ public class PluggableDialogBuilder
                             plugs[i] = buttons.get(i).getConnectedButton();
                         }
                         state.setConfigurationReflector(plugs);
+                        main.onDialogFinished(state);
                         Toast.makeText(main.getApplication(), R.string.dialog_reflector_set, Toast.LENGTH_SHORT).show();
                     }
                 })
@@ -120,6 +125,11 @@ public class PluggableDialogBuilder
         lp.width = WindowManager.LayoutParams.MATCH_PARENT;
         lp.height = WindowManager.LayoutParams.WRAP_CONTENT;
         d.show();
+        positive = ((AlertDialog)d).getButton(AlertDialog.BUTTON_POSITIVE);
+        if(!allConnectionsDone())
+        {
+            positive.setEnabled(false);
+        }
         d.getWindow().setAttributes(lp);
     }
     public void initializeLayout()
@@ -186,6 +196,16 @@ public class PluggableDialogBuilder
         }
     }
 
+    protected boolean allConnectionsDone()
+    {
+        for(int i=0; i<buttons.size(); i++)
+        {
+            ButtonWrapper b = buttons.get(i);
+            if(b.getConnectedButton() == i || b.getConnectedButton() == -1) return false;
+        }
+        return true;
+    }
+
     protected void restoreConfigurationPlugboard()
     {
         restoreConfiguration(state.getConfigurationPlugboard());
@@ -235,6 +255,16 @@ public class PluggableDialogBuilder
             b1.setResourceID(res);
             b2.setResourceID(res);
         }
+        updatePositiveButton();
+    }
+
+    protected void updatePositiveButton()
+    {
+        if(!allowIncompleteConnections && positive != null)
+        {
+            if(allConnectionsDone()) positive.setEnabled(true);
+            else positive.setEnabled(false);
+        }
     }
 
     private void setButtonFree(int b)

app/src/main/java/de/vanitasvitae/enigmandroid/layout/RingSettingsDialogBuilder.java

@@ -102,7 +102,7 @@ public abstract class RingSettingsDialogBuilder
         }
 
         @Override
-        protected void showDialog(EnigmaStateBundle stateBundle, ArrayAdapter[] adapters, int[] rIDs, Actions actions)
+        protected void showDialog(final EnigmaStateBundle stateBundle, ArrayAdapter[] adapters, int[] rIDs, Actions actions)
         {
             if(adapters.length != 3 || rIDs.length != 3)
             {
@@ -147,6 +147,7 @@ public abstract class RingSettingsDialogBuilder
                                     (ring1.getSelectedItemPosition()+1) + ", " +
                                     (ring2.getSelectedItemPosition()+1) + ", " +
                                     (ring3.getSelectedItemPosition()+1) + ".";
+                            main.onDialogFinished(stateBundle);
                             Toast.makeText(main, message, Toast.LENGTH_LONG).show();
                         }
                     })
@@ -219,7 +220,7 @@ public abstract class RingSettingsDialogBuilder
                     });
         }
         @Override
-        protected void showDialog(EnigmaStateBundle stateBundle, ArrayAdapter[] adapters, int[] rIDs, Actions actions) {
+        protected void showDialog(final EnigmaStateBundle stateBundle, ArrayAdapter[] adapters, int[] rIDs, Actions actions) {
             if(adapters.length != 4 || rIDs.length != 4)
             {
                 Log.d("Enigm|RingSettings", "Length of adapters array or length of rIDs array not equal to 4!");
@@ -271,6 +272,7 @@ public abstract class RingSettingsDialogBuilder
                                     (ring2.getSelectedItemPosition()+1) + ", " +
                                     (ring3.getSelectedItemPosition()+1) + ", " +
                                     (ring4.getSelectedItemPosition()+1) + ".";
+                            main.onDialogFinished(stateBundle);
                             Toast.makeText(main, message, Toast.LENGTH_LONG).show();
                         }
                     })

app/src/main/res/layout/dialog_passphrase.xml

@@ -0,0 +1,17 @@
+<RelativeLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="wrap_content"
+    android:layout_height="wrap_content"
+    android:paddingStart="5dp"
+    android:paddingEnd="5dp">
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content">
+        <EditText
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:hint="@string/hint_passphrase"
+            android:id="@+id/passphrase"/>
+    </LinearLayout>
+</RelativeLayout>

app/src/main/res/menu/main.xml

@@ -2,29 +2,50 @@
     xmlns:tools="http://schemas.android.com/tools"
     tools:context=".MainActivity" >
 
+    <!-- RESET -->
     <item android:id="@+id/action_reset"
         android:orderInCategory="95"
         android:showAsAction="ifRoom"
         android:title="@string/action_reset" />
+    <!-- SEND -->
     <item android:id="@+id/action_send"
         android:orderInCategory="96"
         android:showAsAction="always"
         android:title="@string/action_send"
         android:icon="@drawable/ic_send_white_48dp"/>
-    <item android:id="@+id/action_random_configuration"
+    <!-- RINGSETTING -->
+    <item android:id="@+id/action_choose_ringsetting"
+        android:title="@string/action_choose_ringsettings"
         android:orderInCategory="97"
+        android:showAsAction="ifRoom" />
+    <!-- ENTER SEED -->
+    <item android:id="@+id/action_enter_seed"
+        android:title="@string/action_read_passphrase"
+        android:showAsAction="ifRoom"
+        android:orderInCategory="98" />
+    <!-- RECEIVE QR -->
+    <item android:id="@+id/action_receive_scan"
+        android:title="@string/action_read_qr"
+        android:showAsAction="ifRoom"
+        android:orderInCategory="99" />
+    <!-- SHARE QR -->
+    <item android:id="@+id/action_share_scan"
+        android:title="@string/action_send_qr"
+        android:showAsAction="ifRoom"
+        android:orderInCategory="100" />
+    <!-- RANDOM -->
+    <item android:id="@+id/action_random_configuration"
+        android:orderInCategory="101"
         android:showAsAction="ifRoom"
         android:title="@string/action_random" />
-    <item android:id="@+id/action_choose_ringstellung"
+    <!-- SETTINGS -->
-        android:title="@string/action_choose_ringsettings"
-        android:orderInCategory="98"
-        android:showAsAction="never" />
     <item android:id="@+id/action_settings"
-          android:title="@string/action_settings"
+        android:title="@string/action_settings"
-          android:orderInCategory="99"
+        android:orderInCategory="102"
-          android:showAsAction="never" />
+        android:showAsAction="ifRoom" />
+    <!-- ABOUT -->
     <item android:id="@+id/action_about"
-          android:title="@string/title_action_about"
+        android:title="@string/title_action_about"
-          android:orderInCategory="100"
+        android:orderInCategory="103"
-          android:showAsAction="never" />
+        android:showAsAction="ifRoom" />
 </menu>

app/src/main/res/values-de/strings.xml

@@ -5,6 +5,9 @@
     <string name="action_version">Version</string>
     <string name="action_reset">Zurücksetzen</string>
     <string name="action_random">Zufällige Konfiguration</string>
+    <string name="action_read_qr">Lese Konfiguration aus QR-Code</string>
+    <string name="action_send_qr">Teile Konfiguration per QR-Code</string>
+    <string name="action_read_passphrase">Konfiguration aus Schlüsselwort</string>
     <string name="action_settings">Einstellungen</string>
     <string name="action_choose_ringsettings">Ringstellung</string>
     <string name="action_send">Senden</string>
@@ -24,13 +27,14 @@
     <string name="hint_reflector_position">Position\nUmkehr-\nWalze</string>
     <string name="hint_thin_rotor_position">Position\nWalze 4</string>
     <string name="hint_enigma_reflector_wiring">Verkabelung Umkehrwalze</string>
+    <string name="hint_passphrase">Passphrase eingeben</string>
     <string name="button_crypt">Ver-/Entschlüsseln</string>
     <string name="error_parsing_plugs">Fehler: Fehlerhafte Steckerbrettkonfiguration.</string>
     <string name="error_unable_to_plug_a_b">Kann Stecker nicht setzen: </string>
     <string name="error_plug_already_in_use">Fehler: Einer oder mehrere dieser Stecker sind bereits in Benutzung: </string>
     <string name="error_no_text_to_send">Nachricht ist leer.</string>
     <string name="title_ringsetting">Ringstellungen</string>
-    <string name="title_plugboard_dialog">Steckbrett-\nverbindungen</string>
+    <string name="title_plugboard_dialog">Steckbrett-\nVerbindungen</string>
     <string name="title_reflector_dialog">Verkabelung Umkehrwalze</string>
     <string name="dialog_positiv">OK</string>
     <string name="dialog_negativ">Abbrechen</string>
@@ -38,6 +42,7 @@
     <string name="dialog_ringsettings_success">Setze Ringe auf</string>
     <string name="dialog_reflector_set">Umkehrwalze verkabelt.</string>
     <string name="dialog_plugboard_set">Steckbrett gesteckert.</string>
+    <string name="dialog_passphrase_set">Generiere Konfiguration aus Schlüsselwort</string>
     <string name="dialog_abort">Keine Änderungen</string>
     <string name="message_reset">Enigma zurückgesetzt</string>
     <string name="message_random">Enigma auf zufällige Konfiguration gesetzt</string>

app/src/main/res/values/strings.xml

@@ -6,6 +6,9 @@
     <string name="action_version">Version</string>
     <string name="action_reset">Reset</string>
     <string name="action_random">Random configuration</string>
+    <string name="action_read_qr">Read configuration from QR-Code</string>
+    <string name="action_send_qr">Share configuration via QR-Code</string>
+    <string name="action_read_passphrase">Create configuration from passphrase</string>
     <string name="action_choose_ringsettings">Ring-Settings</string>
     <string name="action_settings">Settings</string>
     <string name="action_send">Send</string>
@@ -25,6 +28,7 @@
     <string name="hint_reflector_position">Position\nReflector</string>
     <string name="hint_thin_rotor_position">Position\nRotor 4</string>
     <string name="hint_enigma_reflector_wiring">Wiring Reflector</string>
+    <string name="hint_passphrase">Enter passphrase</string>
     <string name="button_crypt">En-/Decrypt!</string>
     <string name="error_parsing_plugs">Error: Can\'t interpret plugboard input.</string>
     <string name="error_unable_to_plug_a_b">Unable to plug </string>
@@ -39,6 +43,7 @@
     <string name="dialog_ringsettings_success">Set Ring-Settings to</string>
     <string name="dialog_reflector_set">Rewired Reflector.</string>
     <string name="dialog_plugboard_set">Plugged Plugboard.</string>
+    <string name="dialog_passphrase_set">Generate configuration from passphrase</string>
     <string name="dialog_abort">No changes</string>
     <string name="message_reset">Enigma reset</string>
     <string name="message_random">Enigma set to random configuration</string>