add preferences, use them where applicable

AndroidManifest.xml

@@ -115,6 +115,11 @@
             android:label="@string/title_mailInbox"
             android:configChanges="keyboardHidden|orientation|keyboard"/>
 
+        <activity
+            android:name=".PreferencesActivity"
+            android:label="@string/title_preferences"
+            android:configChanges="keyboardHidden|orientation|keyboard"/>
+
         <provider
             android:name="org.thialfihar.android.apg.provider.DataProvider"
             android:authorities="org.thialfihar.android.apg.provider" />

res/layout/encrypt_file.xml

@@ -65,14 +65,15 @@
                 android:layout_height="wrap_content"
                 android:orientation="horizontal">
 
-                <TextView android:id="@+id/label_algorithm"
+                <TextView
-                          android:text="@string/label_algorithm"
+                    android:id="@+id/label_algorithm"
-                          android:textAppearance="?android:attr/textAppearanceMedium"
+                    android:text="@string/label_algorithm"
-                          android:layout_height="wrap_content"
+                    android:textAppearance="?android:attr/textAppearanceMedium"
-                          android:layout_width="0dip"
+                    android:layout_height="wrap_content"
-                          android:layout_weight="1"
+                    android:layout_width="0dip"
-                          android:layout_gravity="center_vertical"
+                    android:layout_weight="1"
-                          android:paddingRight="10dip"/>
+                    android:layout_gravity="center_vertical"
+                    android:paddingRight="10dip"/>
 
                 <Spinner
                     android:id="@+id/algorithm"
@@ -219,33 +220,37 @@
 
                 <TableRow>
 
-                    <TextView android:id="@+id/label_pass_phrase"
+                    <TextView
-                              android:text="@string/label_pass_phrase"
+                        android:id="@+id/label_pass_phrase"
-                              android:layout_height="wrap_content"
+                        android:text="@string/label_pass_phrase"
-                              android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
-                              android:layout_gravity="center_vertical"
+                        android:layout_width="wrap_content"
-                              android:paddingRight="10dip"/>
+                        android:layout_gravity="center_vertical"
+                        android:paddingRight="10dip"/>
 
-                    <EditText android:id="@+id/pass_phrase"
+                    <EditText
-                              android:layout_height="wrap_content"
+                        android:id="@+id/pass_phrase"
-                              android:layout_width="fill_parent"
+                        android:layout_height="wrap_content"
-                              android:inputType="textPassword"/>
+                        android:layout_width="fill_parent"
+                        android:inputType="textPassword"/>
 
                 </TableRow>
 
                 <TableRow>
 
-                    <TextView android:id="@+id/label_pass_phrase_again"
+                    <TextView
-                              android:text="@string/label_pass_phrase_again"
+                        android:id="@+id/label_pass_phrase_again"
-                              android:layout_height="wrap_content"
+                        android:text="@string/label_pass_phrase_again"
-                              android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
-                              android:layout_gravity="center_vertical"
+                        android:layout_width="wrap_content"
-                              android:paddingRight="10dip"/>
+                        android:layout_gravity="center_vertical"
+                        android:paddingRight="10dip"/>
 
-                    <EditText android:id="@+id/pass_phrase_again"
+                    <EditText
-                              android:layout_height="wrap_content"
+                        android:id="@+id/pass_phrase_again"
-                              android:layout_width="fill_parent"
+                        android:layout_height="wrap_content"
-                              android:inputType="textPassword"/>
+                        android:layout_width="fill_parent"
+                        android:inputType="textPassword"/>
 
                 </TableRow>
 

res/layout/preferences.xml

@@ -0,0 +1,114 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2010 Thialfihar <thi@thialfihar.org>
+
+     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.
+-->
+
+<ScrollView
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="fill_parent"
+    android:layout_height="fill_parent"
+    android:fillViewport="true">
+
+    <LinearLayout
+        android:layout_width="fill_parent"
+        android:layout_height="fill_parent"
+        android:orientation="vertical"
+        android:paddingTop="5dip"
+        android:layout_marginRight="?android:attr/scrollbarSize">
+
+        <TextView
+            android:id="@+id/section_defaults"
+            android:text="@string/section_defaults"
+            android:layout_width="fill_parent"
+            android:layout_height="wrap_content"
+            android:textAppearance="?android:attr/textAppearanceLarge"/>
+
+        <View
+            android:layout_width="fill_parent"
+            android:layout_height="1dip"
+            android:background="?android:attr/listDivider"
+            android:layout_marginBottom="5dip"/>
+
+        <LinearLayout
+            android:layout_width="fill_parent"
+            android:layout_height="wrap_content"
+            android:orientation="horizontal">
+
+            <TextView
+                android:id="@+id/label_encryption_algorithm"
+                android:text="@string/label_encryption_algorithm"
+                android:textAppearance="?android:attr/textAppearanceMedium"
+                android:layout_height="wrap_content"
+                android:layout_width="0dip"
+                android:layout_weight="1"
+                android:layout_gravity="center_vertical"
+                android:paddingRight="10dip"/>
+
+            <Spinner
+                android:id="@+id/encryption_algorithm"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_gravity="center_vertical"/>
+
+       </LinearLayout>
+
+       <LinearLayout
+            android:layout_width="fill_parent"
+            android:layout_height="wrap_content"
+            android:orientation="horizontal">
+
+            <TextView
+                android:id="@+id/label_hash_algorithm"
+                android:text="@string/label_hash_algorithm"
+                android:textAppearance="?android:attr/textAppearanceMedium"
+                android:layout_height="wrap_content"
+                android:layout_width="0dip"
+                android:layout_weight="1"
+                android:layout_gravity="center_vertical"
+                android:paddingRight="10dip"/>
+
+            <Spinner
+                android:id="@+id/hash_algorithm"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_gravity="center_vertical"/>
+
+       </LinearLayout>
+
+       <LinearLayout
+            android:layout_width="fill_parent"
+            android:layout_height="wrap_content"
+            android:orientation="horizontal">
+
+            <TextView
+                android:id="@+id/label_ascii_armour"
+                android:text="@string/label_ascii_armour"
+                android:textAppearance="?android:attr/textAppearanceMedium"
+                android:layout_gravity="center_vertical"
+                android:paddingRight="10dip"
+                android:layout_height="wrap_content"
+                android:layout_width="0dip"
+                android:layout_weight="1"/>
+
+            <CheckBox
+                android:id="@+id/ascii_armour"
+                android:layout_height="wrap_content"
+                android:layout_width="wrap_content"
+                android:layout_gravity="center_vertical"/>
+
+        </LinearLayout>
+
+    </LinearLayout>
+
+</ScrollView>

res/values/strings.xml

@@ -28,6 +28,7 @@
     <string name="title_authentification">Authentification</string>
     <string name="title_createKey">Create Key</string>
     <string name="title_editKey">Edit Key</string>
+    <string name="title_preferences">Preferences</string>
 
     <string name="section_userIds">User IDs</string>
     <string name="section_keys">Keys</string>
@@ -49,6 +50,7 @@
     <string name="menu_addAccount">Add GMail Account</string>
     <string name="menu_managePublicKeys">Manage Public Keys</string>
     <string name="menu_manageSecretKeys">Manage Secret Keys</string>
+    <string name="menu_preferences">Settings</string>
 
     <string name="no_keys_selected">Select</string>
     <string name="one_key_selected">1 Selected</string>
@@ -65,6 +67,11 @@
     <string name="label_select_public_keys">Public Key(s)</string>
     <string name="label_use_pass_phrase">Use Pass Phrase</string>
 
+    <string name="label_encryption_algorithm">Encryption Algorithm</string>
+    <string name="label_hash_algorithm">Hash Algorithm</string>
+
+    <string name="section_defaults">Defaults</string>
+
     <string name="sign_only">Sign only</string>
     <string name="encrypt_only">Encrypt only</string>
     <string name="sign_and_encrypt">Sign and Encrypt</string>

src/org/thialfihar/android/apg/Apg.java

@@ -1175,7 +1175,7 @@ public class Apg {
                                long encryptionKeyIds[], long signatureKeyId,
                                String signaturePassPhrase,
                                ProgressDialogUpdater progress,
-                               int symmetricAlgorithm,
+                               int symmetricAlgorithm, int hashAlgorithm,
                                String passPhrase)
             throws IOException, GeneralException, PGPException, NoSuchProviderException,
             NoSuchAlgorithmException, SignatureException {
@@ -1251,7 +1251,7 @@ public class Apg {
             progress.setProgress("preparing signature...", 30, 100);
             signatureGenerator =
                     new PGPSignatureGenerator(signingKey.getPublicKey().getAlgorithm(),
-                                              HashAlgorithmTags.SHA1,
+                                              hashAlgorithm,
                                               new BouncyCastleProvider());
             signatureGenerator.initSign(PGPSignature.BINARY_DOCUMENT, signaturePrivateKey);
             String userId = getMainUserId(getMasterKey(signingKeyRing));

src/org/thialfihar/android/apg/BaseActivity.java

@@ -16,12 +16,16 @@
 
 package org.thialfihar.android.apg;
 
+import org.bouncycastle2.bcpg.HashAlgorithmTags;
+import org.bouncycastle2.openpgp.PGPEncryptedData;
+
 import android.app.Activity;
 import android.app.AlertDialog;
 import android.app.Dialog;
 import android.app.ProgressDialog;
 import android.content.DialogInterface;
 import android.content.Intent;
+import android.content.SharedPreferences;
 import android.os.Bundle;
 import android.os.Handler;
 import android.os.Message;
@@ -34,6 +38,7 @@ public class BaseActivity extends Activity
     private Thread mRunningThread = null;
 
     private long mSecretKeyId = 0;
+    protected static SharedPreferences mPreferences = null;
 
     private Handler mHandler = new Handler() {
         @Override
@@ -46,6 +51,9 @@ public class BaseActivity extends Activity
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
 
+        if (mPreferences == null) {
+            mPreferences = getPreferences(MODE_PRIVATE);
+        }
         Apg.initialize(this);
     }
 
@@ -245,4 +253,46 @@ public class BaseActivity extends Activity
     public long getSecretKeyId() {
         return mSecretKeyId;
     }
+
+    public int getDefaultEncryptionAlgorithm() {
+        return mPreferences.getInt(Constants.pref.default_encryption_algorithm,
+                                   PGPEncryptedData.AES_256);
+    }
+
+    public void setDefaultEncryptionAlgorithm(int value) {
+        SharedPreferences.Editor editor = mPreferences.edit();
+        editor.putInt(Constants.pref.default_encryption_algorithm, value);
+        editor.commit();
+    }
+
+    public int getDefaultHashAlgorithm() {
+        return mPreferences.getInt(Constants.pref.default_hash_algorithm,
+                                   HashAlgorithmTags.SHA256);
+    }
+
+    public void setDefaultHashAlgorithm(int value) {
+        SharedPreferences.Editor editor = mPreferences.edit();
+        editor.putInt(Constants.pref.default_hash_algorithm, value);
+        editor.commit();
+    }
+
+    public boolean getDefaultAsciiArmour() {
+        return mPreferences.getBoolean(Constants.pref.default_ascii_armour, false);
+    }
+
+    public void setDefaultAsciiArmour(boolean value) {
+        SharedPreferences.Editor editor = mPreferences.edit();
+        editor.putBoolean(Constants.pref.default_ascii_armour, value);
+        editor.commit();
+    }
+
+    public boolean hasSeenChangeLog() {
+        return mPreferences.getBoolean(Constants.pref.has_seen_change_log, false);
+    }
+
+    public void setHasSeenChangeLog(boolean value) {
+        SharedPreferences.Editor editor = mPreferences.edit();
+        editor.putBoolean(Constants.pref.has_seen_change_log, value);
+        editor.commit();
+    }
 }

src/org/thialfihar/android/apg/Constants.java

@@ -25,5 +25,8 @@ public final class Constants {
 
     public static final class pref {
         public static final String has_seen_change_log = "seenChangeLogDialog" + Apg.VERSION;
+        public static final String default_encryption_algorithm = "defaultEncryptionAlgorithm";
+        public static final String default_hash_algorithm = "defaultHashAlgorithm";
+        public static final String default_ascii_armour = "defaultAsciiArmour";
     }
 }

src/org/thialfihar/android/apg/EncryptFileActivity.java

@@ -81,6 +81,7 @@ public class EncryptFileActivity extends BaseActivity {
         setContentView(R.layout.encrypt_file);
 
         mAsciiArmour = (CheckBox) findViewById(R.id.ascii_armour);
+        mAsciiArmour.setChecked(getDefaultAsciiArmour());
 
         // asymmetric tab
         mSelectKeysButton = (Button) findViewById(R.id.btn_selectEncryptKeys);
@@ -138,7 +139,7 @@ public class EncryptFileActivity extends BaseActivity {
         adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
         mAlgorithm.setAdapter(adapter);
         for (int i = 0; i < choices.length; ++i) {
-            if (choices[i].getId() == PGPEncryptedData.AES_256) {
+            if (choices[i].getId() == getDefaultEncryptionAlgorithm()) {
                 mAlgorithm.setSelection(i);
                 break;
             }
@@ -331,6 +332,7 @@ public class EncryptFileActivity extends BaseActivity {
                                 mEncryptionKeyIds, getSecretKeyId(),
                                 Apg.getPassPhrase(), this,
                                 ((Choice) mAlgorithm.getSelectedItem()).getId(),
+                                getDefaultHashAlgorithm(),
                                 passPhrase);
 
             out.close();

src/org/thialfihar/android/apg/EncryptMessageActivity.java

@@ -25,7 +25,6 @@ import java.security.SignatureException;
 import java.util.Vector;
 
 import org.bouncycastle2.bcpg.HashAlgorithmTags;
-import org.bouncycastle2.openpgp.PGPEncryptedData;
 import org.bouncycastle2.openpgp.PGPException;
 import org.bouncycastle2.openpgp.PGPPublicKey;
 import org.bouncycastle2.openpgp.PGPPublicKeyRing;
@@ -202,10 +201,11 @@ public class EncryptMessageActivity extends BaseActivity {
             if (encryptIt) {
                 Apg.encrypt(in, out, true, mEncryptionKeyIds, getSecretKeyId(),
                             Apg.getPassPhrase(), this,
-                            PGPEncryptedData.AES_256, null);
+                            getDefaultEncryptionAlgorithm(), getDefaultHashAlgorithm(),
+                            null);
             } else {
                 Apg.signText(in, out, getSecretKeyId(),
-                             Apg.getPassPhrase(), HashAlgorithmTags.SHA256, this);
+                             Apg.getPassPhrase(), getDefaultHashAlgorithm(), this);
             }
             data.putString("message", new String(out.toByteArray()));
         } catch (IOException e) {

src/org/thialfihar/android/apg/Id.java

@@ -30,6 +30,7 @@ public final class Id {
             public static final int manage_secret_keys = 0x21070005;
             public static final int import_keys = 0x21070006;
             public static final int export_keys = 0x21070007;
+            public static final int preferences = 0x21070008;
         }
     }
 

src/org/thialfihar/android/apg/MainActivity.java

@@ -67,28 +67,28 @@ public class MainActivity extends BaseActivity {
         encryptMessageButton.setOnClickListener(new OnClickListener() {
             @Override
             public void onClick(View v) {
-                startEncryptMessageActivity();
+                startActivity(new Intent(MainActivity.this, EncryptMessageActivity.class));
             }
         });
 
         decryptMessageButton.setOnClickListener(new OnClickListener() {
             @Override
             public void onClick(View v) {
-                startDecryptMessageActivity();
+                startActivity(new Intent(MainActivity.this, DecryptMessageActivity.class));
             }
         });
 
         encryptFileButton.setOnClickListener(new OnClickListener() {
             @Override
             public void onClick(View v) {
-                startEncryptFileActivity();
+                startActivity(new Intent(MainActivity.this, EncryptFileActivity.class));
             }
         });
 
         decryptFileButton.setOnClickListener(new OnClickListener() {
             @Override
             public void onClick(View v) {
-                startDecryptFileActivity();
+                startActivity(new Intent(MainActivity.this, DecryptFileActivity.class));
             }
         });
 
@@ -105,14 +105,14 @@ public class MainActivity extends BaseActivity {
                     cursor.moveToFirst();
                     int nameIndex = cursor.getColumnIndex(Accounts.NAME);
                     String accountName = cursor.getString(nameIndex);
-                    startMailListActivity(accountName);
+                    startActivity(new Intent(MainActivity.this, MailListActivity.class)
+                                        .putExtra("account", accountName));
                 }
             }
         });
         registerForContextMenu(mAccounts);
 
-        SharedPreferences prefs = getPreferences(MODE_PRIVATE);
+        if (!hasSeenChangeLog()) {
-        if (!prefs.getBoolean(Constants.pref.has_seen_change_log, false)) {
             showDialog(Id.dialog.change_log);
         }
     }
@@ -248,10 +248,7 @@ public class MainActivity extends BaseActivity {
                                         new DialogInterface.OnClickListener() {
                                             public void onClick(DialogInterface dialog, int id) {
                                                 MainActivity.this.removeDialog(Id.dialog.change_log);
-                                                SharedPreferences prefs = getPreferences(MODE_PRIVATE);
+                                                setHasSeenChangeLog(true);
-                                                SharedPreferences.Editor editor = prefs.edit();
-                                                editor.putBoolean(Constants.pref.has_seen_change_log, true);
-                                                editor.commit();
                                             }
                 });
 
@@ -268,13 +265,15 @@ public class MainActivity extends BaseActivity {
 
     @Override
     public boolean onCreateOptionsMenu(Menu menu) {
-        menu.add(0, Id.menu.option.manage_public_keys, 0, R.string.menu_managePublicKeys)
+        menu.add(0, Id.menu.option.preferences, 0, R.string.menu_preferences)
+        .setIcon(android.R.drawable.ic_menu_preferences);
+        menu.add(1, Id.menu.option.manage_public_keys, 1, R.string.menu_managePublicKeys)
                 .setIcon(android.R.drawable.ic_menu_manage);
-        menu.add(0, Id.menu.option.manage_secret_keys, 1, R.string.menu_manageSecretKeys)
+        menu.add(1, Id.menu.option.manage_secret_keys, 2, R.string.menu_manageSecretKeys)
                 .setIcon(android.R.drawable.ic_menu_manage);
-        menu.add(1, Id.menu.option.create, 2, R.string.menu_addAccount)
+        menu.add(2, Id.menu.option.create, 3, R.string.menu_addAccount)
                 .setIcon(android.R.drawable.ic_menu_add);
-        menu.add(1, Id.menu.option.about, 3, R.string.menu_about)
+        menu.add(2, Id.menu.option.about, 4, R.string.menu_about)
                 .setIcon(android.R.drawable.ic_menu_info_details);
         return true;
     }
@@ -293,12 +292,17 @@ public class MainActivity extends BaseActivity {
             }
 
             case Id.menu.option.manage_public_keys: {
-                startPublicKeyManager();
+                startActivity(new Intent(this, PublicKeyListActivity.class));
                 return true;
             }
 
             case Id.menu.option.manage_secret_keys: {
-                startSecretKeyManager();
+                startActivity(new Intent(this, SecretKeyListActivity.class));
+                return true;
+            }
+
+            case Id.menu.option.preferences: {
+                startActivity(new Intent(this, PreferencesActivity.class));
                 return true;
             }
 
@@ -338,33 +342,6 @@ public class MainActivity extends BaseActivity {
         }
     }
 
-    public void startPublicKeyManager() {
-        startActivity(new Intent(this, PublicKeyListActivity.class));
-    }
-
-    public void startSecretKeyManager() {
-        startActivity(new Intent(this, SecretKeyListActivity.class));
-    }
-
-    public void startEncryptMessageActivity() {
-        startActivity(new Intent(this, EncryptMessageActivity.class));
-    }
-
-    public void startDecryptMessageActivity() {
-        startActivity(new Intent(this, DecryptMessageActivity.class));
-    }
-
-    public void startEncryptFileActivity() {
-        startActivity(new Intent(this, EncryptFileActivity.class));
-    }
-
-    public void startDecryptFileActivity() {
-        startActivity(new Intent(this, DecryptFileActivity.class));
-    }
-
-    public void startMailListActivity(String account) {
-        startActivity(new Intent(this, MailListActivity.class).putExtra("account", account));
-    }
 
     private static class AccountListAdapter extends CursorAdapter {
         private LayoutInflater minflater;

src/org/thialfihar/android/apg/PreferencesActivity.java

@@ -0,0 +1,124 @@
+/*
+ * Copyright (C) 2010 Thialfihar <thi@thialfihar.org>
+ *
+ * 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 org.thialfihar.android.apg;
+
+import org.bouncycastle2.bcpg.HashAlgorithmTags;
+import org.bouncycastle2.openpgp.PGPEncryptedData;
+import org.thialfihar.android.apg.utils.Choice;
+
+import android.os.Bundle;
+import android.util.Log;
+import android.view.View;
+import android.view.View.OnClickListener;
+import android.widget.AdapterView;
+import android.widget.ArrayAdapter;
+import android.widget.CheckBox;
+import android.widget.Spinner;
+import android.widget.AdapterView.OnItemSelectedListener;
+
+public class PreferencesActivity extends BaseActivity {
+    private Spinner mEncryptionAlgorithm = null;
+    private Spinner mHashAlgorithm = null;
+    private CheckBox mAsciiArmour = null;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.preferences);
+
+        mEncryptionAlgorithm = (Spinner) findViewById(R.id.encryption_algorithm);
+        mHashAlgorithm = (Spinner) findViewById(R.id.hash_algorithm);
+        mAsciiArmour = (CheckBox) findViewById(R.id.ascii_armour);
+
+        mAsciiArmour.setChecked(getDefaultAsciiArmour());
+
+        Choice choices[] = {
+                new Choice(PGPEncryptedData.AES_128, "AES 128"),
+                new Choice(PGPEncryptedData.AES_192, "AES 192"),
+                new Choice(PGPEncryptedData.AES_256, "AES 256"),
+                new Choice(PGPEncryptedData.BLOWFISH, "Blowfish"),
+                new Choice(PGPEncryptedData.TWOFISH, "Twofish"),
+                new Choice(PGPEncryptedData.CAST5, "CAST5"),
+                new Choice(PGPEncryptedData.DES, "DES"),
+                new Choice(PGPEncryptedData.TRIPLE_DES, "Triple DES"),
+                new Choice(PGPEncryptedData.IDEA, "IDEA"),
+        };
+        ArrayAdapter<Choice> adapter =
+                new ArrayAdapter<Choice>(this, android.R.layout.simple_spinner_item, choices);
+        adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
+        mEncryptionAlgorithm.setAdapter(adapter);
+
+        for (int i = 0; i < choices.length; ++i) {
+            if (choices[i].getId() == getDefaultEncryptionAlgorithm()) {
+                mEncryptionAlgorithm.setSelection(i);
+                break;
+            }
+        }
+
+        mEncryptionAlgorithm.setOnItemSelectedListener(new OnItemSelectedListener() {
+            @Override
+            public void onItemSelected(AdapterView<?> adapter, View view, int index, long id) {
+                setDefaultEncryptionAlgorithm(((Choice) mEncryptionAlgorithm.getSelectedItem()).getId());
+            }
+
+            @Override
+            public void onNothingSelected(AdapterView<?> adapter) {
+                // nothing to do
+            }
+        });
+
+        Choice choices2[] = {
+                new Choice(HashAlgorithmTags.MD5, "MD5"),
+                new Choice(HashAlgorithmTags.RIPEMD160, "RIPEMD160"),
+                new Choice(HashAlgorithmTags.SHA1, "SHA1"),
+                new Choice(HashAlgorithmTags.SHA224, "SHA224"),
+                new Choice(HashAlgorithmTags.SHA256, "SHA256"),
+                new Choice(HashAlgorithmTags.SHA384, "SHA384"),
+                new Choice(HashAlgorithmTags.SHA512, "SHA512"),
+        };
+        adapter = new ArrayAdapter<Choice>(this, android.R.layout.simple_spinner_item, choices2);
+        adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
+        mHashAlgorithm.setAdapter(adapter);
+
+        for (int i = 0; i < choices2.length; ++i) {
+            if (choices2[i].getId() == getDefaultHashAlgorithm()) {
+                mHashAlgorithm.setSelection(i);
+                break;
+            }
+        }
+
+        mHashAlgorithm.setOnItemSelectedListener(new OnItemSelectedListener() {
+            @Override
+            public void onItemSelected(AdapterView<?> adapter, View view, int index, long id) {
+                setDefaultHashAlgorithm(((Choice) mHashAlgorithm.getSelectedItem()).getId());
+            }
+
+            @Override
+            public void onNothingSelected(AdapterView<?> adapter) {
+                // nothing to do
+            }
+        });
+
+        mAsciiArmour.setOnClickListener(new OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                setDefaultAsciiArmour(mAsciiArmour.isChecked());
+            }
+        });
+    }
+}
+