Merge branch 'CryptoNextBeta' into development

* CryptoNextBeta: (60 commits)
  Lock TrustKeys if no trusted keys are available
  Optimize imports
  Use MD style for key trust toggle switch
  Fix set/remove OnUpdateBlocklistListener
  Fix axolotl database migration
  Remove device list from EditAccount
  Add clear devices to overflow menu in EditAccount
  Ask for key trust when sending messages
  Encrypt files for HTTP upload in encrypted chats
  Refactor trust key ui and show in account details
  Send correct body for HTTP files
  Handle file transmission properly in axolotl
  Remove unneccessary code
  Fix trust status for outgoing messages
  Don't merge messages with different trust statuses
  Fix copying of axolotl keys to clipboard
  Add refresh icon to v21 theme
  Disable Axolotl option if not usable
  Show trust status of messages' originating session
  Add key trust toggle to ContactDetailsActivity
  ...

19 files changed, 618 insertions, 77 deletions

diff --git a/src/main/java/eu/siacs/conversations/ui/AboutPreference.java b/src/main/java/eu/siacs/conversations/ui/AboutPreference.java
index a57e1b89..bd2042fb 100644
--- a/src/main/java/eu/siacs/conversations/ui/AboutPreference.java
+++ b/src/main/java/eu/siacs/conversations/ui/AboutPreference.java
@@ -2,7 +2,6 @@ package eu.siacs.conversations.ui;
 
 import android.content.Context;
 import android.content.Intent;
-import android.content.pm.PackageManager;
 import android.preference.Preference;
 import android.util.AttributeSet;
 
diff --git a/src/main/java/eu/siacs/conversations/ui/ChangePasswordActivity.java b/src/main/java/eu/siacs/conversations/ui/ChangePasswordActivity.java
index 54c064c6..d40a1121 100644
--- a/src/main/java/eu/siacs/conversations/ui/ChangePasswordActivity.java
+++ b/src/main/java/eu/siacs/conversations/ui/ChangePasswordActivity.java
@@ -4,7 +4,6 @@ import android.os.Bundle;
 import android.view.View;
 import android.widget.Button;
 import android.widget.EditText;
-import android.widget.TextView;
 import android.widget.Toast;
 
 import eu.siacs.conversations.R;
diff --git a/src/main/java/eu/siacs/conversations/ui/ChooseContactActivity.java b/src/main/java/eu/siacs/conversations/ui/ChooseContactActivity.java
index c9e99ce5..b2ea28a0 100644
--- a/src/main/java/eu/siacs/conversations/ui/ChooseContactActivity.java
+++ b/src/main/java/eu/siacs/conversations/ui/ChooseContactActivity.java
@@ -13,11 +13,11 @@ import android.widget.AbsListView.MultiChoiceModeListener;
 import android.widget.AdapterView;
 import android.widget.ListView;
 
-import java.util.Set;
-import java.util.HashSet;
+import java.util.ArrayList;
 import java.util.Collections;
+import java.util.HashSet;
 import java.util.List;
-import java.util.ArrayList;
+import java.util.Set;
 
 import eu.siacs.conversations.R;
 import eu.siacs.conversations.entities.Account;
diff --git a/src/main/java/eu/siacs/conversations/ui/ConferenceDetailsActivity.java b/src/main/java/eu/siacs/conversations/ui/ConferenceDetailsActivity.java
index 3d15d3e1..475bc423 100644
--- a/src/main/java/eu/siacs/conversations/ui/ConferenceDetailsActivity.java
+++ b/src/main/java/eu/siacs/conversations/ui/ConferenceDetailsActivity.java
@@ -27,7 +27,6 @@ import org.openintents.openpgp.util.OpenPgpUtils;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.Comparator;
-import java.util.List;
 
 import eu.siacs.conversations.R;
 import eu.siacs.conversations.crypto.PgpEngine;
@@ -38,8 +37,8 @@ import eu.siacs.conversations.entities.Conversation;
 import eu.siacs.conversations.entities.MucOptions;
 import eu.siacs.conversations.entities.MucOptions.User;
 import eu.siacs.conversations.services.XmppConnectionService;
-import eu.siacs.conversations.services.XmppConnectionService.OnMucRosterUpdate;
 import eu.siacs.conversations.services.XmppConnectionService.OnConversationUpdate;
+import eu.siacs.conversations.services.XmppConnectionService.OnMucRosterUpdate;
 import eu.siacs.conversations.xmpp.jid.Jid;
 
 public class ConferenceDetailsActivity extends XmppActivity implements OnConversationUpdate, OnMucRosterUpdate, XmppConnectionService.OnAffiliationChanged, XmppConnectionService.OnRoleChanged, XmppConnectionService.OnConferenceOptionsPushed {
diff --git a/src/main/java/eu/siacs/conversations/ui/ContactDetailsActivity.java b/src/main/java/eu/siacs/conversations/ui/ContactDetailsActivity.java
index c190caed..e7a8ffb7 100644
--- a/src/main/java/eu/siacs/conversations/ui/ContactDetailsActivity.java
+++ b/src/main/java/eu/siacs/conversations/ui/ContactDetailsActivity.java
@@ -29,6 +29,7 @@ import android.widget.QuickContactBadge;
 import android.widget.TextView;
 
 import org.openintents.openpgp.util.OpenPgpUtils;
+import org.whispersystems.libaxolotl.IdentityKey;
 
 import java.util.List;
 
@@ -362,13 +363,13 @@ public class ContactDetailsActivity extends XmppActivity implements OnAccountUpd
 			View view = inflater.inflate(R.layout.contact_key, keys, false);
 			TextView key = (TextView) view.findViewById(R.id.key);
 			TextView keyType = (TextView) view.findViewById(R.id.key_type);
-			ImageButton remove = (ImageButton) view
+			ImageButton removeButton = (ImageButton) view
 				.findViewById(R.id.button_remove);
-			remove.setVisibility(View.VISIBLE);
+			removeButton.setVisibility(View.VISIBLE);
 			keyType.setText("OTR Fingerprint");
 			key.setText(CryptoHelper.prettifyFingerprint(otrFingerprint));
 			keys.addView(view);
-			remove.setOnClickListener(new OnClickListener() {
+			removeButton.setOnClickListener(new OnClickListener() {
 
 				@Override
 				public void onClick(View v) {
@@ -376,6 +377,11 @@ public class ContactDetailsActivity extends XmppActivity implements OnAccountUpd
 				}
 			});
 		}
+		for(final IdentityKey identityKey : xmppConnectionService.databaseBackend.loadIdentityKeys(
+				contact.getAccount(), contact.getJid().toBareJid().toString())) {
+			hasKeys = true;
+			addFingerprintRow(keys, contact.getAccount(), identityKey);
+		}
 		if (contact.getPgpKeyId() != 0) {
 			hasKeys = true;
 			View view = inflater.inflate(R.layout.contact_key, keys, false);
diff --git a/src/main/java/eu/siacs/conversations/ui/ConversationActivity.java b/src/main/java/eu/siacs/conversations/ui/ConversationActivity.java
index 96abf65b..dbf4490e 100644
--- a/src/main/java/eu/siacs/conversations/ui/ConversationActivity.java
+++ b/src/main/java/eu/siacs/conversations/ui/ConversationActivity.java
@@ -16,6 +16,7 @@ import android.os.Bundle;
 import android.provider.MediaStore;
 import android.support.v4.widget.SlidingPaneLayout;
 import android.support.v4.widget.SlidingPaneLayout.PanelSlideListener;
+import android.util.Log;
 import android.view.Menu;
 import android.view.MenuItem;
 import android.view.View;
@@ -28,13 +29,15 @@ import android.widget.PopupMenu.OnMenuItemClickListener;
 import android.widget.Toast;
 
 import net.java.otr4j.session.SessionStatus;
-import de.timroes.android.listview.EnhancedListView;
 
 import java.util.ArrayList;
 import java.util.Iterator;
 import java.util.List;
 
+import de.timroes.android.listview.EnhancedListView;
+import eu.siacs.conversations.Config;
 import eu.siacs.conversations.R;
+import eu.siacs.conversations.crypto.axolotl.AxolotlService;
 import eu.siacs.conversations.entities.Account;
 import eu.siacs.conversations.entities.Blockable;
 import eu.siacs.conversations.entities.Contact;
@@ -62,11 +65,14 @@ public class ConversationActivity extends XmppActivity
 	public static final int REQUEST_SEND_MESSAGE = 0x0201;
 	public static final int REQUEST_DECRYPT_PGP = 0x0202;
 	public static final int REQUEST_ENCRYPT_MESSAGE = 0x0207;
+	public static final int REQUEST_TRUST_KEYS_TEXT = 0x0208;
+	public static final int REQUEST_TRUST_KEYS_MENU = 0x0209;
 	public static final int ATTACHMENT_CHOICE_CHOOSE_IMAGE = 0x0301;
 	public static final int ATTACHMENT_CHOICE_TAKE_PHOTO = 0x0302;
 	public static final int ATTACHMENT_CHOICE_CHOOSE_FILE = 0x0303;
 	public static final int ATTACHMENT_CHOICE_RECORD_VOICE = 0x0304;
 	public static final int ATTACHMENT_CHOICE_LOCATION = 0x0305;
+	public static final int ATTACHMENT_CHOICE_INVALID = 0x0306;
 	private static final String STATE_OPEN_CONVERSATION = "state_open_conversation";
 	private static final String STATE_PANEL_OPEN = "state_panel_open";
 	private static final String STATE_PENDING_URI = "state_pending_uri";
@@ -76,6 +82,7 @@ public class ConversationActivity extends XmppActivity
 	final private List<Uri> mPendingImageUris = new ArrayList<>();
 	final private List<Uri> mPendingFileUris = new ArrayList<>();
 	private Uri mPendingGeoUri = null;
+	private boolean forbidProcessingPendings = false;
 
 	private View mContentView;
 
@@ -398,7 +405,7 @@ public class ConversationActivity extends XmppActivity
 		return true;
 	}
 
-	private void selectPresenceToAttachFile(final int attachmentChoice, final int encryption) {
+	protected void selectPresenceToAttachFile(final int attachmentChoice, final int encryption) {
 		final Conversation conversation = getSelectedConversation();
 		final Account account = conversation.getAccount();
 		final OnPresenceSelected callback = new OnPresenceSelected() {
@@ -534,7 +541,9 @@ public class ConversationActivity extends XmppActivity
 				showInstallPgpDialog();
 			}
 		} else {
-			selectPresenceToAttachFile(attachmentChoice,encryption);
+			if (encryption != Message.ENCRYPTION_AXOLOTL || !trustKeysIfNeeded(REQUEST_TRUST_KEYS_MENU, attachmentChoice)) {
+				selectPresenceToAttachFile(attachmentChoice, encryption);
+			}
 		}
 	}
 
@@ -749,6 +758,12 @@ public class ConversationActivity extends XmppActivity
 								showInstallPgpDialog();
 							}
 							break;
+						case R.id.encryption_choice_axolotl:
+							Log.d(Config.LOGTAG, AxolotlService.getLogprefix(conversation.getAccount())
+									+ "Enabled axolotl for Contact " + conversation.getContact().getJid());
+							conversation.setNextEncryption(Message.ENCRYPTION_AXOLOTL);
+							item.setChecked(true);
+							break;
 						default:
 							conversation.setNextEncryption(Message.ENCRYPTION_NONE);
 							break;
@@ -763,13 +778,18 @@ public class ConversationActivity extends XmppActivity
 			MenuItem otr = popup.getMenu().findItem(R.id.encryption_choice_otr);
 			MenuItem none = popup.getMenu().findItem(R.id.encryption_choice_none);
 			MenuItem pgp = popup.getMenu().findItem(R.id.encryption_choice_pgp);
+			MenuItem axolotl = popup.getMenu().findItem(R.id.encryption_choice_axolotl);
 			if (conversation.getMode() == Conversation.MODE_MULTI) {
 				otr.setEnabled(false);
+				axolotl.setEnabled(false);
 			} else {
 				if (forceEncryption()) {
 					none.setVisible(false);
 				}
 			}
+			if (!conversation.getAccount().getAxolotlService().isContactAxolotlCapable(conversation.getContact())) {
+				axolotl.setEnabled(false);
+			}
 			switch (conversation.getNextEncryption(forceEncryption())) {
 				case Message.ENCRYPTION_NONE:
 					none.setChecked(true);
@@ -780,6 +800,10 @@ public class ConversationActivity extends XmppActivity
 				case Message.ENCRYPTION_PGP:
 					pgp.setChecked(true);
 					break;
+				case Message.ENCRYPTION_AXOLOTL:
+					popup.getMenu().findItem(R.id.encryption_choice_axolotl)
+							.setChecked(true);
+					break;
 				default:
 					none.setChecked(true);
 					break;
@@ -944,18 +968,23 @@ public class ConversationActivity extends XmppActivity
 			this.mConversationFragment.reInit(getSelectedConversation());
 		}
 
-		for(Iterator<Uri> i = mPendingImageUris.iterator(); i.hasNext(); i.remove()) {
-			attachImageToConversation(getSelectedConversation(),i.next());
-		}
+		if(!forbidProcessingPendings) {
+			for (Iterator<Uri> i = mPendingImageUris.iterator(); i.hasNext(); i.remove()) {
+				Uri foo = i.next();
+				attachImageToConversation(getSelectedConversation(), foo);
+			}
 
-		for(Iterator<Uri> i = mPendingFileUris.iterator(); i.hasNext(); i.remove()) {
-			attachFileToConversation(getSelectedConversation(),i.next());
-		}
+			for (Iterator<Uri> i = mPendingFileUris.iterator(); i.hasNext(); i.remove()) {
+				attachFileToConversation(getSelectedConversation(), i.next());
+			}
 
-		if (mPendingGeoUri != null) {
-			attachLocationToConversation(getSelectedConversation(), mPendingGeoUri);
-			mPendingGeoUri = null;
+			if (mPendingGeoUri != null) {
+				attachLocationToConversation(getSelectedConversation(), mPendingGeoUri);
+				mPendingGeoUri = null;
+			}
 		}
+		forbidProcessingPendings = false;
+
 		ExceptionHelper.checkForCrash(this, this.xmppConnectionService);
 		setIntent(new Intent());
 	}
@@ -1065,6 +1094,9 @@ public class ConversationActivity extends XmppActivity
 					attachLocationToConversation(getSelectedConversation(), mPendingGeoUri);
 					this.mPendingGeoUri = null;
 				}
+			} else if (requestCode == REQUEST_TRUST_KEYS_TEXT || requestCode == REQUEST_TRUST_KEYS_MENU) {
+				this.forbidProcessingPendings = !xmppConnectionServiceBound;
+				mConversationFragment.onActivityResult(requestCode, resultCode, data);
 			}
 		} else {
 			mPendingImageUris.clear();
@@ -1217,6 +1249,26 @@ public class ConversationActivity extends XmppActivity
 		return getPreferences().getBoolean("indicate_received", false);
 	}
 
+	protected boolean trustKeysIfNeeded(int requestCode) {
+		return trustKeysIfNeeded(requestCode, ATTACHMENT_CHOICE_INVALID);
+	}
+
+	protected boolean trustKeysIfNeeded(int requestCode, int attachmentChoice) {
+		AxolotlService axolotlService = mSelectedConversation.getAccount().getAxolotlService();
+		if(!axolotlService.getPendingKeys(mSelectedConversation.getContact()).isEmpty()
+				|| !axolotlService.findDevicesWithoutSession(mSelectedConversation).isEmpty()) {
+			axolotlService.createSessionsIfNeeded(mSelectedConversation, false);
+			Intent intent = new Intent(getApplicationContext(), TrustKeysActivity.class);
+			intent.putExtra("contact", mSelectedConversation.getContact().getJid().toBareJid().toString());
+			intent.putExtra("account", mSelectedConversation.getAccount().getJid().toBareJid().toString());
+			intent.putExtra("choice", attachmentChoice);
+			startActivityForResult(intent, requestCode);
+			return true;
+		} else {
+			return false;
+		}
+	}
+
 	@Override
 	protected void refreshUiReal() {
 		updateConversationList();
diff --git a/src/main/java/eu/siacs/conversations/ui/ConversationFragment.java b/src/main/java/eu/siacs/conversations/ui/ConversationFragment.java
index d254ece7..f40b06c8 100644
--- a/src/main/java/eu/siacs/conversations/ui/ConversationFragment.java
+++ b/src/main/java/eu/siacs/conversations/ui/ConversationFragment.java
@@ -1,5 +1,6 @@
 package eu.siacs.conversations.ui;
 
+import android.app.Activity;
 import android.app.AlertDialog;
 import android.app.Fragment;
 import android.app.PendingIntent;
@@ -46,12 +47,12 @@ import eu.siacs.conversations.crypto.PgpEngine;
 import eu.siacs.conversations.entities.Account;
 import eu.siacs.conversations.entities.Contact;
 import eu.siacs.conversations.entities.Conversation;
-import eu.siacs.conversations.entities.Transferable;
 import eu.siacs.conversations.entities.DownloadableFile;
-import eu.siacs.conversations.entities.TransferablePlaceholder;
 import eu.siacs.conversations.entities.Message;
 import eu.siacs.conversations.entities.MucOptions;
 import eu.siacs.conversations.entities.Presences;
+import eu.siacs.conversations.entities.Transferable;
+import eu.siacs.conversations.entities.TransferablePlaceholder;
 import eu.siacs.conversations.services.XmppConnectionService;
 import eu.siacs.conversations.ui.XmppActivity.OnPresenceSelected;
 import eu.siacs.conversations.ui.XmppActivity.OnValueEdited;
@@ -303,6 +304,10 @@ public class ConversationFragment extends Fragment implements EditMessage.Keyboa
 			sendOtrMessage(message);
 		} else if (conversation.getNextEncryption(activity.forceEncryption()) == Message.ENCRYPTION_PGP) {
 			sendPgpMessage(message);
+		} else if (conversation.getNextEncryption(activity.forceEncryption()) == Message.ENCRYPTION_AXOLOTL) {
+			if(!activity.trustKeysIfNeeded(ConversationActivity.REQUEST_TRUST_KEYS_TEXT)) {
+				sendAxolotlMessage(message);
+			}
 		} else {
 			sendPlainTextMessage(message);
 		}
@@ -323,6 +328,9 @@ public class ConversationFragment extends Fragment implements EditMessage.Keyboa
 				case Message.ENCRYPTION_OTR:
 					mEditMessage.setHint(getString(R.string.send_otr_message));
 					break;
+				case Message.ENCRYPTION_AXOLOTL:
+					mEditMessage.setHint(getString(R.string.send_axolotl_message));
+					break;
 				case Message.ENCRYPTION_PGP:
 					mEditMessage.setHint(getString(R.string.send_pgp_message));
 					break;
@@ -1120,6 +1128,13 @@ public class ConversationFragment extends Fragment implements EditMessage.Keyboa
 		builder.create().show();
 	}
 
+	protected void sendAxolotlMessage(final Message message) {
+		final ConversationActivity activity = (ConversationActivity) getActivity();
+		final XmppConnectionService xmppService = activity.xmppConnectionService;
+		xmppService.sendMessage(message);
+		messageSent();
+	}
+
 	protected void sendOtrMessage(final Message message) {
 		final ConversationActivity activity = (ConversationActivity) getActivity();
 		final XmppConnectionService xmppService = activity.xmppConnectionService;
@@ -1182,4 +1197,19 @@ public class ConversationFragment extends Fragment implements EditMessage.Keyboa
 		updateSendButton();
 	}
 
+	@Override
+	public void onActivityResult(int requestCode, int resultCode,
+	                                final Intent data) {
+		if (resultCode == Activity.RESULT_OK) {
+			if (requestCode == ConversationActivity.REQUEST_TRUST_KEYS_TEXT) {
+				final String body = mEditMessage.getText().toString();
+				Message message = new Message(conversation, body, conversation.getNextEncryption(activity.forceEncryption()));
+				sendAxolotlMessage(message);
+			} else if (requestCode == ConversationActivity.REQUEST_TRUST_KEYS_MENU) {
+				int choice = data.getIntExtra("choice", ConversationActivity.ATTACHMENT_CHOICE_INVALID);
+				activity.selectPresenceToAttachFile(choice, conversation.getNextEncryption(activity.forceEncryption()));
+			}
+		}
+	}
+
 }
diff --git a/src/main/java/eu/siacs/conversations/ui/EditAccountActivity.java b/src/main/java/eu/siacs/conversations/ui/EditAccountActivity.java
index 908c29d2..379d0728 100644
--- a/src/main/java/eu/siacs/conversations/ui/EditAccountActivity.java
+++ b/src/main/java/eu/siacs/conversations/ui/EditAccountActivity.java
@@ -1,6 +1,8 @@
 package eu.siacs.conversations.ui;
 
+import android.app.AlertDialog.Builder;
 import android.app.PendingIntent;
+import android.content.DialogInterface;
 import android.content.Intent;
 import android.os.Bundle;
 import android.text.Editable;
@@ -23,6 +25,10 @@ import android.widget.TableLayout;
 import android.widget.TextView;
 import android.widget.Toast;
 
+import org.whispersystems.libaxolotl.IdentityKey;
+
+import java.util.Set;
+
 import eu.siacs.conversations.R;
 import eu.siacs.conversations.entities.Account;
 import eu.siacs.conversations.services.XmppConnectionService.OnAccountUpdate;
@@ -54,9 +60,15 @@ public class EditAccountActivity extends XmppActivity implements OnAccountUpdate
 	private TextView mServerInfoPep;
 	private TextView mSessionEst;
 	private TextView mOtrFingerprint;
+	private TextView mAxolotlFingerprint;
 	private ImageView mAvatar;
 	private RelativeLayout mOtrFingerprintBox;
+	private RelativeLayout mAxolotlFingerprintBox;
 	private ImageButton mOtrFingerprintToClipboardButton;
+	private ImageButton mAxolotlFingerprintToClipboardButton;
+	private ImageButton mRegenerateAxolotlKeyButton;
+	private LinearLayout keys;
+	private LinearLayout keysCard;
 
 	private Jid jidToEdit;
 	private Account mAccount;
@@ -310,6 +322,12 @@ public class EditAccountActivity extends XmppActivity implements OnAccountUpdate
 		this.mOtrFingerprint = (TextView) findViewById(R.id.otr_fingerprint);
 		this.mOtrFingerprintBox = (RelativeLayout) findViewById(R.id.otr_fingerprint_box);
 		this.mOtrFingerprintToClipboardButton = (ImageButton) findViewById(R.id.action_copy_to_clipboard);
+		this.mAxolotlFingerprint = (TextView) findViewById(R.id.axolotl_fingerprint);
+		this.mAxolotlFingerprintBox = (RelativeLayout) findViewById(R.id.axolotl_fingerprint_box);
+		this.mAxolotlFingerprintToClipboardButton = (ImageButton) findViewById(R.id.action_copy_axolotl_to_clipboard);
+		this.mRegenerateAxolotlKeyButton = (ImageButton) findViewById(R.id.action_regenerate_axolotl_key);
+		this.keysCard = (LinearLayout) findViewById(R.id.other_device_keys_card);
+		this.keys = (LinearLayout) findViewById(R.id.other_device_keys);
 		this.mSaveButton = (Button) findViewById(R.id.save_button);
 		this.mCancelButton = (Button) findViewById(R.id.cancel_button);
 		this.mSaveButton.setOnClickListener(this.mSaveButtonClickListener);
@@ -338,6 +356,7 @@ public class EditAccountActivity extends XmppActivity implements OnAccountUpdate
 		final MenuItem showBlocklist = menu.findItem(R.id.action_show_block_list);
 		final MenuItem showMoreInfo = menu.findItem(R.id.action_server_info_show_more);
 		final MenuItem changePassword = menu.findItem(R.id.action_change_password_on_server);
+		final MenuItem clearDevices = menu.findItem(R.id.action_clear_devices);
 		if (mAccount != null && mAccount.isOnlineAndConnected()) {
 			if (!mAccount.getXmppConnection().getFeatures().blocking()) {
 				showBlocklist.setVisible(false);
@@ -345,6 +364,10 @@ public class EditAccountActivity extends XmppActivity implements OnAccountUpdate
 			if (!mAccount.getXmppConnection().getFeatures().register()) {
 				changePassword.setVisible(false);
 			}
+			Set<Integer> otherDevices = mAccount.getAxolotlService().getOwnDeviceIds();
+			if (otherDevices == null || otherDevices.isEmpty()) {
+				clearDevices.setVisible(false);
+			}
 		} else {
 			showQrCode.setVisible(false);
 			showBlocklist.setVisible(false);
@@ -415,6 +438,9 @@ public class EditAccountActivity extends XmppActivity implements OnAccountUpdate
 				changePasswordIntent.putExtra("account", mAccount.getJid().toString());
 				startActivity(changePasswordIntent);
 				break;
+			case R.id.action_clear_devices:
+				showWipePepDialog();
+				break;
 		}
 		return super.onOptionsItemSelected(item);
 	}
@@ -477,10 +503,10 @@ public class EditAccountActivity extends XmppActivity implements OnAccountUpdate
 			} else {
 				this.mServerInfoPep.setText(R.string.server_info_unavailable);
 			}
-			final String fingerprint = this.mAccount.getOtrFingerprint();
-			if (fingerprint != null) {
+			final String otrFingerprint = this.mAccount.getOtrFingerprint();
+			if (otrFingerprint != null) {
 				this.mOtrFingerprintBox.setVisibility(View.VISIBLE);
-				this.mOtrFingerprint.setText(CryptoHelper.prettifyFingerprint(fingerprint));
+				this.mOtrFingerprint.setText(CryptoHelper.prettifyFingerprint(otrFingerprint));
 				this.mOtrFingerprintToClipboardButton
 					.setVisibility(View.VISIBLE);
 				this.mOtrFingerprintToClipboardButton
@@ -489,7 +515,7 @@ public class EditAccountActivity extends XmppActivity implements OnAccountUpdate
 						@Override
 						public void onClick(final View v) {
 
-							if (copyTextToClipboard(fingerprint, R.string.otr_fingerprint)) {
+							if (copyTextToClipboard(otrFingerprint, R.string.otr_fingerprint)) {
 								Toast.makeText(
 										EditAccountActivity.this,
 										R.string.toast_message_otr_fingerprint,
@@ -500,6 +526,55 @@ public class EditAccountActivity extends XmppActivity implements OnAccountUpdate
 			} else {
 				this.mOtrFingerprintBox.setVisibility(View.GONE);
 			}
+			final String axolotlFingerprint = this.mAccount.getAxolotlService().getOwnPublicKey().getFingerprint();
+			if (axolotlFingerprint != null) {
+				this.mAxolotlFingerprintBox.setVisibility(View.VISIBLE);
+				this.mAxolotlFingerprint.setText(CryptoHelper.prettifyFingerprint(axolotlFingerprint));
+				this.mAxolotlFingerprintToClipboardButton
+						.setVisibility(View.VISIBLE);
+				this.mAxolotlFingerprintToClipboardButton
+						.setOnClickListener(new View.OnClickListener() {
+
+							@Override
+							public void onClick(final View v) {
+
+								if (copyTextToClipboard(axolotlFingerprint, R.string.axolotl_fingerprint)) {
+									Toast.makeText(
+											EditAccountActivity.this,
+											R.string.toast_message_axolotl_fingerprint,
+											Toast.LENGTH_SHORT).show();
+								}
+							}
+						});
+				this.mRegenerateAxolotlKeyButton
+						.setVisibility(View.VISIBLE);
+				this.mRegenerateAxolotlKeyButton
+						.setOnClickListener(new View.OnClickListener() {
+
+							@Override
+							public void onClick(final View v) {
+								showRegenerateAxolotlKeyDialog();
+							}
+						});
+			} else {
+				this.mAxolotlFingerprintBox.setVisibility(View.GONE);
+			}
+			final IdentityKey ownKey = mAccount.getAxolotlService().getOwnPublicKey();
+			boolean hasKeys = false;
+			keys.removeAllViews();
+			for(final IdentityKey identityKey : xmppConnectionService.databaseBackend.loadIdentityKeys(
+					mAccount, mAccount.getJid().toBareJid().toString())) {
+				if(ownKey.equals(identityKey)) {
+					continue;
+				}
+				hasKeys = true;
+				addFingerprintRow(keys, mAccount, identityKey);
+			}
+			if (hasKeys) {
+				keysCard.setVisibility(View.VISIBLE);
+			} else {
+				keysCard.setVisibility(View.GONE);
+			}
 		} else {
 			if (this.mAccount.errorStatus()) {
 				this.mAccountJid.setError(getString(this.mAccount.getStatus().getReadableId()));
@@ -512,4 +587,36 @@ public class EditAccountActivity extends XmppActivity implements OnAccountUpdate
 			this.mStats.setVisibility(View.GONE);
 		}
 	}
+
+	public void showRegenerateAxolotlKeyDialog() {
+		Builder builder = new Builder(this);
+		builder.setTitle("Regenerate Key");
+		builder.setIconAttribute(android.R.attr.alertDialogIcon);
+		builder.setMessage("Are you sure you want to regenerate your Identity Key? (This will also wipe all established sessions and contact Identity Keys)");
+		builder.setNegativeButton(getString(R.string.cancel), null);
+		builder.setPositiveButton("Yes",
+				new DialogInterface.OnClickListener() {
+					@Override
+					public void onClick(DialogInterface dialog, int which) {
+						mAccount.getAxolotlService().regenerateKeys();
+					}
+				});
+		builder.create().show();
+	}
+
+	public void showWipePepDialog() {
+		Builder builder = new Builder(this);
+		builder.setTitle(getString(R.string.clear_other_devices));
+		builder.setIconAttribute(android.R.attr.alertDialogIcon);
+		builder.setMessage(getString(R.string.clear_other_devices_desc));
+		builder.setNegativeButton(getString(R.string.cancel), null);
+		builder.setPositiveButton(getString(R.string.accept),
+				new DialogInterface.OnClickListener() {
+					@Override
+					public void onClick(DialogInterface dialog, int which) {
+						mAccount.getAxolotlService().wipeOtherPepDevices();
+					}
+				});
+		builder.create().show();
+	}
 }
diff --git a/src/main/java/eu/siacs/conversations/ui/ManageAccountActivity.java b/src/main/java/eu/siacs/conversations/ui/ManageAccountActivity.java
index 56dbc55e..e1189e7a 100644
--- a/src/main/java/eu/siacs/conversations/ui/ManageAccountActivity.java
+++ b/src/main/java/eu/siacs/conversations/ui/ManageAccountActivity.java
@@ -1,27 +1,28 @@
 package eu.siacs.conversations.ui;
 
-import java.util.ArrayList;
-import java.util.List;
-
-import eu.siacs.conversations.R;
-import eu.siacs.conversations.entities.Account;
-import eu.siacs.conversations.services.XmppConnectionService.OnAccountUpdate;
-import eu.siacs.conversations.ui.adapter.AccountAdapter;
 import android.app.AlertDialog;
 import android.content.DialogInterface;
 import android.content.DialogInterface.OnClickListener;
 import android.content.Intent;
 import android.os.Bundle;
 import android.view.ContextMenu;
+import android.view.ContextMenu.ContextMenuInfo;
 import android.view.Menu;
 import android.view.MenuItem;
 import android.view.View;
-import android.view.ContextMenu.ContextMenuInfo;
 import android.widget.AdapterView;
 import android.widget.AdapterView.AdapterContextMenuInfo;
 import android.widget.AdapterView.OnItemClickListener;
 import android.widget.ListView;
 
+import java.util.ArrayList;
+import java.util.List;
+
+import eu.siacs.conversations.R;
+import eu.siacs.conversations.entities.Account;
+import eu.siacs.conversations.services.XmppConnectionService.OnAccountUpdate;
+import eu.siacs.conversations.ui.adapter.AccountAdapter;
+
 public class ManageAccountActivity extends XmppActivity implements OnAccountUpdate {
 
 	protected Account selectedAccount = null;
diff --git a/src/main/java/eu/siacs/conversations/ui/SettingsActivity.java b/src/main/java/eu/siacs/conversations/ui/SettingsActivity.java
index eb5d9b2e..5ce361df 100644
--- a/src/main/java/eu/siacs/conversations/ui/SettingsActivity.java
+++ b/src/main/java/eu/siacs/conversations/ui/SettingsActivity.java
@@ -1,19 +1,6 @@
 package eu.siacs.conversations.ui;
 
-import java.security.KeyStoreException;
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.Collections;
-import java.util.Locale;
-
-import de.duenndns.ssl.MemorizingTrustManager;
-
-import eu.siacs.conversations.R;
-import eu.siacs.conversations.entities.Account;
-import eu.siacs.conversations.xmpp.XmppConnection;
-
 import android.app.AlertDialog;
-import android.app.Fragment;
 import android.app.FragmentManager;
 import android.content.DialogInterface;
 import android.content.SharedPreferences;
@@ -25,6 +12,17 @@ import android.preference.Preference;
 import android.preference.PreferenceManager;
 import android.widget.Toast;
 
+import java.security.KeyStoreException;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.Locale;
+
+import de.duenndns.ssl.MemorizingTrustManager;
+import eu.siacs.conversations.R;
+import eu.siacs.conversations.entities.Account;
+import eu.siacs.conversations.xmpp.XmppConnection;
+
 public class SettingsActivity extends XmppActivity implements
 		OnSharedPreferenceChangeListener {
 	private SettingsFragment mSettingsFragment;
diff --git a/src/main/java/eu/siacs/conversations/ui/ShareWithActivity.java b/src/main/java/eu/siacs/conversations/ui/ShareWithActivity.java
index 351f1dfc..fed82065 100644
--- a/src/main/java/eu/siacs/conversations/ui/ShareWithActivity.java
+++ b/src/main/java/eu/siacs/conversations/ui/ShareWithActivity.java
@@ -17,7 +17,6 @@ import java.util.ArrayList;
 import java.util.Iterator;
 import java.util.List;
 
-import eu.siacs.conversations.Config;
 import eu.siacs.conversations.R;
 import eu.siacs.conversations.entities.Account;
 import eu.siacs.conversations.entities.Conversation;
diff --git a/src/main/java/eu/siacs/conversations/ui/TrustKeysActivity.java b/src/main/java/eu/siacs/conversations/ui/TrustKeysActivity.java
new file mode 100644
index 00000000..e93cacd4
--- /dev/null
+++ b/src/main/java/eu/siacs/conversations/ui/TrustKeysActivity.java
@@ -0,0 +1,255 @@
+package eu.siacs.conversations.ui;
+
+import android.content.Intent;
+import android.os.Bundle;
+import android.view.View;
+import android.view.View.OnClickListener;
+import android.widget.Button;
+import android.widget.CompoundButton;
+import android.widget.LinearLayout;
+import android.widget.TextView;
+
+import org.whispersystems.libaxolotl.IdentityKey;
+
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Set;
+
+import eu.siacs.conversations.R;
+import eu.siacs.conversations.crypto.axolotl.AxolotlService.SQLiteAxolotlStore.Trust;
+import eu.siacs.conversations.entities.Account;
+import eu.siacs.conversations.entities.Contact;
+import eu.siacs.conversations.entities.Conversation;
+import eu.siacs.conversations.xmpp.OnNewKeysAvailable;
+import eu.siacs.conversations.xmpp.jid.InvalidJidException;
+import eu.siacs.conversations.xmpp.jid.Jid;
+
+public class TrustKeysActivity extends XmppActivity implements OnNewKeysAvailable {
+	private Jid accountJid;
+	private Jid contactJid;
+	private boolean hasOtherTrustedKeys = false;
+	private boolean hasPendingFetches = false;
+
+	private Contact contact;
+	private TextView ownKeysTitle;
+	private LinearLayout ownKeys;
+	private LinearLayout ownKeysCard;
+	private TextView foreignKeysTitle;
+	private LinearLayout foreignKeys;
+	private LinearLayout foreignKeysCard;
+	private Button mSaveButton;
+	private Button mCancelButton;
+
+	private final Map<IdentityKey, Boolean> ownKeysToTrust = new HashMap<>();
+	private final Map<IdentityKey, Boolean> foreignKeysToTrust = new HashMap<>();
+
+	private final OnClickListener mSaveButtonListener = new OnClickListener() {
+		@Override
+		public void onClick(View v) {
+			commitTrusts();
+			Intent data = new Intent();
+			data.putExtra("choice", getIntent().getIntExtra("choice", ConversationActivity.ATTACHMENT_CHOICE_INVALID));
+			setResult(RESULT_OK, data);
+			finish();
+		}
+	};
+
+	private final OnClickListener mCancelButtonListener = new OnClickListener() {
+		@Override
+		public void onClick(View v) {
+			setResult(RESULT_CANCELED);
+			finish();
+		}
+	};
+
+	@Override
+	protected void refreshUiReal() {
+		invalidateOptionsMenu();
+		populateView();
+	}
+
+	@Override
+	protected String getShareableUri() {
+		if (contact != null) {
+			return contact.getShareableUri();
+		} else {
+			return "";
+		}
+	}
+
+	@Override
+	protected void onCreate(final Bundle savedInstanceState) {
+		super.onCreate(savedInstanceState);
+		setContentView(R.layout.activity_trust_keys);
+		try {
+			this.accountJid = Jid.fromString(getIntent().getExtras().getString("account"));
+		} catch (final InvalidJidException ignored) {
+		}
+		try {
+			this.contactJid = Jid.fromString(getIntent().getExtras().getString("contact"));
+		} catch (final InvalidJidException ignored) {
+		}
+
+		ownKeysTitle = (TextView) findViewById(R.id.own_keys_title);
+		ownKeys = (LinearLayout) findViewById(R.id.own_keys_details);
+		ownKeysCard = (LinearLayout) findViewById(R.id.own_keys_card);
+		foreignKeysTitle = (TextView) findViewById(R.id.foreign_keys_title);
+		foreignKeys = (LinearLayout) findViewById(R.id.foreign_keys_details);
+		foreignKeysCard = (LinearLayout) findViewById(R.id.foreign_keys_card);
+		mCancelButton = (Button) findViewById(R.id.cancel_button);
+		mCancelButton.setOnClickListener(mCancelButtonListener);
+		mSaveButton = (Button) findViewById(R.id.save_button);
+		mSaveButton.setOnClickListener(mSaveButtonListener);
+
+
+		if (getActionBar() != null) {
+			getActionBar().setHomeButtonEnabled(true);
+			getActionBar().setDisplayHomeAsUpEnabled(true);
+		}
+	}
+
+	private void populateView() {
+		setTitle(getString(R.string.trust_keys));
+		ownKeys.removeAllViews();
+		foreignKeys.removeAllViews();
+		boolean hasOwnKeys = false;
+		boolean hasForeignKeys = false;
+		for(final IdentityKey identityKey : ownKeysToTrust.keySet()) {
+			hasOwnKeys = true;
+			addFingerprintRowWithListeners(ownKeys, contact.getAccount(), identityKey,
+					Trust.fromBoolean(ownKeysToTrust.get(identityKey)), false,
+					new CompoundButton.OnCheckedChangeListener() {
+						@Override
+						public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
+							ownKeysToTrust.put(identityKey, isChecked);
+							refreshUi();
+							xmppConnectionService.updateAccountUi();
+							xmppConnectionService.updateConversationUi();
+						}
+					},
+					null
+			);
+		}
+		for(final IdentityKey identityKey : foreignKeysToTrust.keySet()) {
+			hasForeignKeys = true;
+			addFingerprintRowWithListeners(foreignKeys, contact.getAccount(), identityKey,
+					Trust.fromBoolean(foreignKeysToTrust.get(identityKey)), false,
+					new CompoundButton.OnCheckedChangeListener() {
+						@Override
+						public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
+							foreignKeysToTrust.put(identityKey, isChecked);
+							refreshUi();
+							xmppConnectionService.updateAccountUi();
+							xmppConnectionService.updateConversationUi();
+						}
+					},
+					null
+			);
+		}
+
+		if(hasOwnKeys) {
+			ownKeysTitle.setText(accountJid.toString());
+			ownKeysCard.setVisibility(View.VISIBLE);
+		}
+		if(hasForeignKeys) {
+			foreignKeysTitle.setText(contactJid.toString());
+			foreignKeysCard.setVisibility(View.VISIBLE);
+		}
+		if(hasPendingFetches) {
+			setFetching();
+			lock();
+		} else {
+			if (!hasOtherTrustedKeys && !foreignKeysToTrust.values().contains(true)){
+				lock();
+			} else {
+				unlock();
+			}
+			setDone();
+		}
+	}
+
+	private void getFingerprints(final Account account) {
+		Set<IdentityKey> ownKeysSet = account.getAxolotlService().getPendingKeys();
+		for(final IdentityKey identityKey : ownKeysSet) {
+			if(!ownKeysToTrust.containsKey(identityKey)) {
+				ownKeysToTrust.put(identityKey, false);
+			}
+		}
+		Set<IdentityKey> foreignKeysSet = account.getAxolotlService().getPendingKeys(contact);
+		for(final IdentityKey identityKey : foreignKeysSet) {
+			if(!foreignKeysToTrust.containsKey(identityKey)) {
+				foreignKeysToTrust.put(identityKey, false);
+			}
+		}
+	}
+
+	@Override
+	public void onBackendConnected() {
+		if ((accountJid != null) && (contactJid != null)) {
+			final Account account = xmppConnectionService
+				.findAccountByJid(accountJid);
+			if (account == null) {
+				return;
+			}
+			this.contact = account.getRoster().getContact(contactJid);
+			ownKeysToTrust.clear();
+			foreignKeysToTrust.clear();
+			getFingerprints(account);
+
+			if(account.getAxolotlService().getNumTrustedKeys(contact) > 0) {
+				hasOtherTrustedKeys = true;
+			}
+			Conversation conversation = xmppConnectionService.findOrCreateConversation(account, contactJid, false);
+			if(account.getAxolotlService().hasPendingKeyFetches(conversation)) {
+				hasPendingFetches = true;
+			}
+
+			populateView();
+		}
+	}
+
+	@Override
+	public void onNewKeysAvailable() {
+		runOnUiThread(new Runnable() {
+			@Override
+			public void run() {
+				final Account account = xmppConnectionService
+						.findAccountByJid(accountJid);
+				hasPendingFetches = false;
+				getFingerprints(account);
+				refreshUi();
+			}
+		});
+	}
+
+	private void commitTrusts() {
+		for(IdentityKey identityKey:ownKeysToTrust.keySet()) {
+			contact.getAccount().getAxolotlService().setFingerprintTrust(
+					identityKey.getFingerprint().replaceAll("\\s", ""),
+					Trust.fromBoolean(ownKeysToTrust.get(identityKey)));
+		}
+		for(IdentityKey identityKey:foreignKeysToTrust.keySet()) {
+			contact.getAccount().getAxolotlService().setFingerprintTrust(
+					identityKey.getFingerprint().replaceAll("\\s", ""),
+					Trust.fromBoolean(foreignKeysToTrust.get(identityKey)));
+		}
+	}
+
+	private void unlock() {
+		mSaveButton.setEnabled(true);
+		mSaveButton.setTextColor(getPrimaryTextColor());
+	}
+
+	private void lock() {
+		mSaveButton.setEnabled(false);
+		mSaveButton.setTextColor(getSecondaryTextColor());
+	}
+
+	private void setDone() {
+		mSaveButton.setText(getString(R.string.done));
+	}
+
+	private void setFetching() {
+		mSaveButton.setText(getString(R.string.fetching_keys));
+	}
+}
diff --git a/src/main/java/eu/siacs/conversations/ui/XmppActivity.java b/src/main/java/eu/siacs/conversations/ui/XmppActivity.java
index 7c994c31..77001f20 100644
--- a/src/main/java/eu/siacs/conversations/ui/XmppActivity.java
+++ b/src/main/java/eu/siacs/conversations/ui/XmppActivity.java
@@ -43,8 +43,11 @@ import android.util.Log;
 import android.view.MenuItem;
 import android.view.View;
 import android.view.inputmethod.InputMethodManager;
+import android.widget.CompoundButton;
 import android.widget.EditText;
 import android.widget.ImageView;
+import android.widget.LinearLayout;
+import android.widget.TextView;
 import android.widget.Toast;
 
 import com.google.zxing.BarcodeFormat;
@@ -56,6 +59,8 @@ import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel;
 
 import net.java.otr4j.session.SessionID;
 
+import org.whispersystems.libaxolotl.IdentityKey;
+
 import java.io.FileNotFoundException;
 import java.lang.ref.WeakReference;
 import java.util.ArrayList;
@@ -65,6 +70,7 @@ import java.util.concurrent.RejectedExecutionException;
 
 import eu.siacs.conversations.Config;
 import eu.siacs.conversations.R;
+import eu.siacs.conversations.crypto.axolotl.AxolotlService;
 import eu.siacs.conversations.entities.Account;
 import eu.siacs.conversations.entities.Contact;
 import eu.siacs.conversations.entities.Conversation;
@@ -74,7 +80,10 @@ import eu.siacs.conversations.entities.Presences;
 import eu.siacs.conversations.services.AvatarService;
 import eu.siacs.conversations.services.XmppConnectionService;
 import eu.siacs.conversations.services.XmppConnectionService.XmppConnectionBinder;
+import eu.siacs.conversations.ui.widget.Switch;
+import eu.siacs.conversations.utils.CryptoHelper;
 import eu.siacs.conversations.utils.ExceptionHelper;
+import eu.siacs.conversations.xmpp.OnNewKeysAvailable;
 import eu.siacs.conversations.xmpp.OnUpdateBlocklist;
 import eu.siacs.conversations.xmpp.jid.InvalidJidException;
 import eu.siacs.conversations.xmpp.jid.Jid;
@@ -287,6 +296,9 @@ public abstract class XmppActivity extends Activity {
 		if (this instanceof XmppConnectionService.OnShowErrorToast) {
 			this.xmppConnectionService.setOnShowErrorToastListener((XmppConnectionService.OnShowErrorToast) this);
 		}
+		if (this instanceof OnNewKeysAvailable) {
+			this.xmppConnectionService.setOnNewKeysAvailableListener((OnNewKeysAvailable) this);
+		}
 	}
 
 	protected void unregisterListeners() {
@@ -308,6 +320,9 @@ public abstract class XmppActivity extends Activity {
 		if (this instanceof XmppConnectionService.OnShowErrorToast) {
 			this.xmppConnectionService.removeOnShowErrorToastListener();
 		}
+		if (this instanceof OnNewKeysAvailable) {
+			this.xmppConnectionService.removeOnNewKeysAvailableListener();
+		}
 	}
 
 	@Override
@@ -443,7 +458,7 @@ public abstract class XmppActivity extends Activity {
 
 					@Override
 					public void userInputRequried(PendingIntent pi,
-												  Account account) {
+					                              Account account) {
 						try {
 							startIntentSenderForResult(pi.getIntentSender(),
 									REQUEST_ANNOUNCE_PGP, null, 0, 0, 0);
@@ -588,6 +603,76 @@ public abstract class XmppActivity extends Activity {
 		builder.create().show();
 	}
 
+	protected void addFingerprintRow(LinearLayout keys, final Account account, IdentityKey identityKey) {
+		final String fingerprint = identityKey.getFingerprint().replaceAll("\\s", "");
+		final AxolotlService.SQLiteAxolotlStore.Trust trust = account.getAxolotlService()
+				.getFingerprintTrust(fingerprint);
+		addFingerprintRowWithListeners(keys, account, identityKey, trust, true,
+				new CompoundButton.OnCheckedChangeListener() {
+					@Override
+					public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
+						if (isChecked != (trust == AxolotlService.SQLiteAxolotlStore.Trust.TRUSTED)) {
+							account.getAxolotlService().setFingerprintTrust(fingerprint,
+									(isChecked) ? AxolotlService.SQLiteAxolotlStore.Trust.TRUSTED :
+											AxolotlService.SQLiteAxolotlStore.Trust.UNTRUSTED);
+						}
+						refreshUi();
+						xmppConnectionService.updateAccountUi();
+						xmppConnectionService.updateConversationUi();
+					}
+				},
+				new View.OnClickListener() {
+					@Override
+					public void onClick(View v) {
+						account.getAxolotlService().setFingerprintTrust(fingerprint,
+								AxolotlService.SQLiteAxolotlStore.Trust.UNTRUSTED);
+						refreshUi();
+						xmppConnectionService.updateAccountUi();
+						xmppConnectionService.updateConversationUi();
+					}
+				}
+
+		);
+	}
+
+	protected void addFingerprintRowWithListeners(LinearLayout keys, final Account account,
+	                                              IdentityKey identityKey,
+	                                              AxolotlService.SQLiteAxolotlStore.Trust trust,
+	                                              boolean showTag,
+	                                              CompoundButton.OnCheckedChangeListener
+			                                             onCheckedChangeListener,
+	                                              View.OnClickListener onClickListener) {
+		View view = getLayoutInflater().inflate(R.layout.contact_key, keys, false);
+		TextView key = (TextView) view.findViewById(R.id.key);
+		TextView keyType = (TextView) view.findViewById(R.id.key_type);
+		Switch trustToggle = (Switch) view.findViewById(R.id.tgl_trust);
+		trustToggle.setVisibility(View.VISIBLE);
+		trustToggle.setOnCheckedChangeListener(onCheckedChangeListener);
+		trustToggle.setOnClickListener(onClickListener);
+
+		switch (trust) {
+			case UNTRUSTED:
+			case TRUSTED:
+				trustToggle.setChecked(trust == AxolotlService.SQLiteAxolotlStore.Trust.TRUSTED, false);
+				trustToggle.setEnabled(true);
+				break;
+			case UNDECIDED:
+				trustToggle.setChecked(false, false);
+				trustToggle.setEnabled(false);
+				break;
+		}
+
+		if (showTag) {
+			keyType.setText(getString(R.string.axolotl_fingerprint));
+		} else {
+			keyType.setVisibility(View.GONE);
+		}
+
+		key.setText(CryptoHelper.prettifyFingerprint(identityKey.getFingerprint()));
+		keys.addView(view);
+
+	}
+
 	public void selectPresence(final Conversation conversation,
 			final OnPresenceSelected listener) {
 		final Contact contact = conversation.getContact();
diff --git a/src/main/java/eu/siacs/conversations/ui/adapter/AccountAdapter.java b/src/main/java/eu/siacs/conversations/ui/adapter/AccountAdapter.java
index 226b1920..ece4ac6b 100644
--- a/src/main/java/eu/siacs/conversations/ui/adapter/AccountAdapter.java
+++ b/src/main/java/eu/siacs/conversations/ui/adapter/AccountAdapter.java
@@ -1,13 +1,5 @@
 package eu.siacs.conversations.ui.adapter;
 
-import java.util.List;
-
-import eu.siacs.conversations.R;
-import eu.siacs.conversations.entities.Account;
-import eu.siacs.conversations.ui.XmppActivity;
-import eu.siacs.conversations.ui.ManageAccountActivity;
-import eu.siacs.conversations.ui.widget.Switch;
-
 import android.content.Context;
 import android.view.LayoutInflater;
 import android.view.View;
@@ -17,6 +9,14 @@ import android.widget.CompoundButton;
 import android.widget.ImageView;
 import android.widget.TextView;
 
+import java.util.List;
+
+import eu.siacs.conversations.R;
+import eu.siacs.conversations.entities.Account;
+import eu.siacs.conversations.ui.ManageAccountActivity;
+import eu.siacs.conversations.ui.XmppActivity;
+import eu.siacs.conversations.ui.widget.Switch;
+
 public class AccountAdapter extends ArrayAdapter<Account> {
 
 	private XmppActivity activity;
diff --git a/src/main/java/eu/siacs/conversations/ui/adapter/ConversationAdapter.java b/src/main/java/eu/siacs/conversations/ui/adapter/ConversationAdapter.java
index bfe44326..6918713e 100644
--- a/src/main/java/eu/siacs/conversations/ui/adapter/ConversationAdapter.java
+++ b/src/main/java/eu/siacs/conversations/ui/adapter/ConversationAdapter.java
@@ -21,8 +21,8 @@ import java.util.concurrent.RejectedExecutionException;
 
 import eu.siacs.conversations.R;
 import eu.siacs.conversations.entities.Conversation;
-import eu.siacs.conversations.entities.Transferable;
 import eu.siacs.conversations.entities.Message;
+import eu.siacs.conversations.entities.Transferable;
 import eu.siacs.conversations.ui.ConversationActivity;
 import eu.siacs.conversations.ui.XmppActivity;
 import eu.siacs.conversations.utils.UIHelper;
diff --git a/src/main/java/eu/siacs/conversations/ui/adapter/KnownHostsAdapter.java b/src/main/java/eu/siacs/conversations/ui/adapter/KnownHostsAdapter.java
index 0993735f..471526af 100644
--- a/src/main/java/eu/siacs/conversations/ui/adapter/KnownHostsAdapter.java
+++ b/src/main/java/eu/siacs/conversations/ui/adapter/KnownHostsAdapter.java
@@ -1,13 +1,13 @@
 package eu.siacs.conversations.ui.adapter;
 
-import java.util.ArrayList;
-import java.util.List;
-import java.util.Locale;
-
 import android.content.Context;
 import android.widget.ArrayAdapter;
 import android.widget.Filter;
 
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Locale;
+
 public class KnownHostsAdapter extends ArrayAdapter<String> {
 	private ArrayList<String> domains;
 	private Filter domainFilter = new Filter() {
diff --git a/src/main/java/eu/siacs/conversations/ui/adapter/ListItemAdapter.java b/src/main/java/eu/siacs/conversations/ui/adapter/ListItemAdapter.java
index 7b20b55f..ad7d7622 100644
--- a/src/main/java/eu/siacs/conversations/ui/adapter/ListItemAdapter.java
+++ b/src/main/java/eu/siacs/conversations/ui/adapter/ListItemAdapter.java
@@ -1,15 +1,5 @@
 package eu.siacs.conversations.ui.adapter;
 
-import java.lang.ref.WeakReference;
-import java.util.List;
-import java.util.concurrent.RejectedExecutionException;
-
-import eu.siacs.conversations.R;
-import eu.siacs.conversations.entities.ListItem;
-import eu.siacs.conversations.ui.XmppActivity;
-import eu.siacs.conversations.utils.UIHelper;
-import eu.siacs.conversations.xmpp.jid.Jid;
-
 import android.content.Context;
 import android.content.SharedPreferences;
 import android.content.res.Resources;
@@ -26,6 +16,16 @@ import android.widget.ImageView;
 import android.widget.LinearLayout;
 import android.widget.TextView;
 
+import java.lang.ref.WeakReference;
+import java.util.List;
+import java.util.concurrent.RejectedExecutionException;
+
+import eu.siacs.conversations.R;
+import eu.siacs.conversations.entities.ListItem;
+import eu.siacs.conversations.ui.XmppActivity;
+import eu.siacs.conversations.utils.UIHelper;
+import eu.siacs.conversations.xmpp.jid.Jid;
+
 public class ListItemAdapter extends ArrayAdapter<ListItem> {
 
 	protected XmppActivity activity;
diff --git a/src/main/java/eu/siacs/conversations/ui/adapter/MessageAdapter.java b/src/main/java/eu/siacs/conversations/ui/adapter/MessageAdapter.java
index 167f3f02..08e0f298 100644
--- a/src/main/java/eu/siacs/conversations/ui/adapter/MessageAdapter.java
+++ b/src/main/java/eu/siacs/conversations/ui/adapter/MessageAdapter.java
@@ -3,6 +3,7 @@ package eu.siacs.conversations.ui.adapter;
 import android.content.Intent;
 import android.content.pm.PackageManager;
 import android.content.pm.ResolveInfo;
+import android.graphics.Color;
 import android.graphics.Typeface;
 import android.net.Uri;
 import android.text.Spannable;
@@ -26,13 +27,14 @@ import android.widget.Toast;
 import java.util.List;
 
 import eu.siacs.conversations.R;
+import eu.siacs.conversations.crypto.axolotl.AxolotlService;
 import eu.siacs.conversations.entities.Account;
 import eu.siacs.conversations.entities.Contact;
 import eu.siacs.conversations.entities.Conversation;
-import eu.siacs.conversations.entities.Transferable;
 import eu.siacs.conversations.entities.DownloadableFile;
 import eu.siacs.conversations.entities.Message;
 import eu.siacs.conversations.entities.Message.FileParams;
+import eu.siacs.conversations.entities.Transferable;
 import eu.siacs.conversations.ui.ConversationActivity;
 import eu.siacs.conversations.utils.GeoHelper;
 import eu.siacs.conversations.utils.UIHelper;
@@ -154,6 +156,17 @@ public class MessageAdapter extends ArrayAdapter<Message> {
 			viewHolder.indicator.setVisibility(View.GONE);
 		} else {
 			viewHolder.indicator.setVisibility(View.VISIBLE);
+			if (message.getEncryption() == Message.ENCRYPTION_AXOLOTL) {
+				AxolotlService.SQLiteAxolotlStore.Trust trust = message.getConversation()
+						.getAccount().getAxolotlService().getFingerprintTrust(
+								message.getAxolotlFingerprint());
+
+				if(trust == null || trust != AxolotlService.SQLiteAxolotlStore.Trust.TRUSTED) {
+					viewHolder.indicator.setColorFilter(Color.RED);
+				} else {
+					viewHolder.indicator.clearColorFilter();
+				}
+			}
 		}
 
 		String formatedTime = UIHelper.readableTimeDifferenceFull(getContext(),
diff --git a/src/main/java/eu/siacs/conversations/ui/widget/Switch.java b/src/main/java/eu/siacs/conversations/ui/widget/Switch.java
index c72e760e..fd3b5553 100644
--- a/src/main/java/eu/siacs/conversations/ui/widget/Switch.java
+++ b/src/main/java/eu/siacs/conversations/ui/widget/Switch.java
@@ -7,8 +7,6 @@ import android.view.ViewConfiguration;
 
 import com.kyleduo.switchbutton.SwitchButton;
 
-import eu.siacs.conversations.Config;
-
 public class Switch extends SwitchButton {
 
 	private int mTouchSlop;