--- loncom/lti/ltiauth.pm	2018/03/23 01:01:47	1.6
+++ loncom/lti/ltiauth.pm	2018/03/23 18:08:45	1.7
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # Basic LTI Authentication Module
 #
-# $Id: ltiauth.pm,v 1.6 2018/03/23 01:01:47 raeburn Exp $
+# $Id: ltiauth.pm,v 1.7 2018/03/23 18:08:45 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -484,7 +484,11 @@ sub handler {
                     }
                     if ($lcauth eq '') {
                         $lcauth = $lti{$itemid}{'lcauth'};
-                        $lcauthparm = $lti{$itemid}{'lcauthparm'};
+                        if ($lcauth eq 'internal') {
+                            $lcauthparm = &create_passwd();
+                        } else {
+                            $lcauthparm = $lti{$itemid}{'lcauthparm'};
+                        }
                     }
                 } else {
                     &invalid_request($r,12);
@@ -940,4 +944,24 @@ sub invalid_request {
     return;
 }
 
+sub create_passwd {
+    my $passwd = '';
+    my @letts = ("a".."z");
+    for (my $i=0; $i<8; $i++) {
+        my $lettnum = int(rand(2));
+        my $item = '';
+        if ($lettnum) {
+            $item = $letts[int(rand(26))];
+            my $uppercase = int(rand(2));
+            if ($uppercase) {
+                $item =~ tr/a-z/A-Z/;
+            }
+        } else {
+            $item = int(rand(10));
+        }
+        $passwd .= $item;
+    }
+    return ($passwd);
+}
+
 1;