Call 'Compare keys' core-code.

MessengerProj/build.gradle

@@ -76,7 +76,7 @@ android {
         }
     }
 
-    defaultConfig.versionCode = 37
+    defaultConfig.versionCode = 38
 
     sourceSets.main {
         jniLibs.srcDir 'libs'
@@ -118,6 +118,6 @@ android {
         minSdkVersion 14     // 14: Android 4.0 Ice Cream Sandwich 2011 (Telegram default), 21: Android 5.0 Lollipop 2014 (recommended for InstantRun)
         targetSdkVersion 25  // 25: Nougat. CAVE: Do NOT target "Andoid O" without checking the background tasks carefully, see https://developer.android.com/preview/behavior-changes.html#back-all . As long as we target "Nougat", everything works as expected even for "Andoid O" or later
                              // in general, we should not change the target without reason; eg. after the switch to Nougat, the camera stops working (see https://inthecheesefactory.com/blog/how-to-share-access-to-file-with-fileprovider-on-android-nougat/en )
-        versionName "0.1.37" // do NOT forget to increase defaultConfig.versionCode!
+        versionName "0.1.38" // do NOT forget to increase defaultConfig.versionCode!
     }
 }

MessengerProj/jni/Android.mk

@@ -1599,11 +1599,14 @@ LOCAL_SRC_FILES     += \
 ./image.c \
 ./video.c \
 ./gifvideo.cpp \
+./messenger-backend/src/mraheader.c \
+./messenger-backend/src/mrapeerstate.c \
 ./messenger-backend/src/mrchat.c \
 ./messenger-backend/src/mrchatlist.c \
 ./messenger-backend/src/mrcmdline.c \
 ./messenger-backend/src/mrcontact.c \
 ./messenger-backend/src/mre2ee.c \
+./messenger-backend/src/mre2ee_driver_bsd.c \
 ./messenger-backend/src/mrimap.c \
 ./messenger-backend/src/mrjob.c \
 ./messenger-backend/src/mrloginparam.c \

MessengerProj/jni/mrwrapper.c

@@ -511,6 +511,15 @@ JNIEXPORT jstring Java_com_b44t_messenger_MrMailbox_getInfo(JNIEnv *env, jclass
 }
 
 
+JNIEXPORT jstring Java_com_b44t_messenger_MrMailbox_getContactEncrInfo(JNIEnv *env, jclass cls, jint contact_id)
+{
+	char* temp = mrmailbox_get_contact_encrinfo(get_mrmailbox_t(env, cls), contact_id);
+		jstring ret = JSTRING_NEW(temp);
+	free(temp);
+	return ret;
+}
+
+
 JNIEXPORT jstring Java_com_b44t_messenger_MrMailbox_cmdline(JNIEnv *env, jclass cls, jstring cmd)
 {
 	CHAR_REF(cmd);

MessengerProj/src/main/java/com/b44t/messenger/MrMailbox.java

@@ -91,6 +91,8 @@ public class MrMailbox {
         return MrMailboxBlockContact(m_hMailbox, id, block);
     }
 
+    public native static String getContactEncrInfo(int contact_id);
+
     public static int deleteContact(int id) {
         return MrMailboxDeleteContact(m_hMailbox, id);
     }

MessengerProj/src/main/java/com/b44t/ui/ProfileActivity.java

@@ -406,7 +406,16 @@ public class ProfileActivity extends BaseFragment implements NotificationCenter.
                 }
                 else if(position==compareKeysRow)
                 {
-                    Toast.makeText(getParentActivity(), context.getString(R.string.NotYetImplemented), Toast.LENGTH_SHORT).show();
+                    String info_str = MrMailbox.getContactEncrInfo(user_id);
+                    AlertDialog.Builder builder = new AlertDialog.Builder(getParentActivity());
+                    builder.setMessage(info_str);
+                    builder.setPositiveButton(context.getString(R.string.OK), new DialogInterface.OnClickListener() {
+                        @Override
+                        public void onClick(DialogInterface dialogInterface, int i) {
+                            ;
+                        }
+                    });
+                    showDialog(builder.create());
                 }
                 else if(position==startChatRow)
                 {