src/main/java/eu/siacs/conversations/ui/ConversationsActivity.java

@@ -833,6 +833,12 @@ public class ConversationsActivity extends XmppActivity implements OnConversatio
         PopupMenu popup = new PopupMenu(this, view);
         popup.inflate(R.menu.verification_choices);
         popup.setOnMenuItemClickListener(menuItem -> {
+            if (menuItem.getItemId() == R.id.blind_trust) {
+                conversation.verifyOtrFingerprint();
+                xmppConnectionService.syncRosterToDisk(conversation.getAccount());
+                return true;
+            }
+
             Intent intent = new Intent(ConversationsActivity.this, VerifyOTRActivity.class);
             intent.setAction(VerifyOTRActivity.ACTION_VERIFY_CONTACT);
             intent.putExtra("contact", conversation.getContact().getJid().asBareJid().toString());

src/main/res/menu/verification_choices.xml

@@ -9,4 +9,8 @@
         android:id="@+id/manual_verification"
         android:title="@string/manually_verify" />
 
+    <item
+        android:id="@+id/blind_trust"
+        android:title="@string/otr_blind_trust" />
+
 </menu>

src/main/res/values/strings.xml

@@ -1169,6 +1169,7 @@
     <string name="manual_verification_explanation">Carefully compare the fingerprint shown below with the fingerprint of your contact.\nYou can use any trusted form of communication like an encrypted e-mail or a telephone call to exchange those.</string>
     <string name="could_not_verify_fingerprint">Could not verify fingerprint</string>
     <string name="manually_verify">Manually verify</string>
+    <string name="otr_blind_trust">Blind trust</string>
     <string name="secrets_do_not_match">Secrets do not match</string>
     <string name="ask_question">Ask question</string>
     <string name="verify">Verify</string>