Index: moodle/mod/lamslesson/lib.php
===================================================================
diff -u -radcfc200d31635ae595098cc32d9c849d066de73 -rbe08f578da5e41c9b041c27b4a0bba15debd4ef7
--- moodle/mod/lamslesson/lib.php	(.../lib.php)	(revision adcfc200d31635ae595098cc32d9c849d066de73)
+++ moodle/mod/lamslesson/lib.php	(.../lib.php)	(revision be08f578da5e41c9b041c27b4a0bba15debd4ef7)
@@ -57,6 +57,7 @@
 define('LAMSLESSON_PARAM_AUTHOR_METHOD', 'author');
 define('LAMSLESSON_PARAM_MONITOR_METHOD', 'monitor');
 define('LAMSLESSON_PARAM_LEARNER_METHOD', 'learner');
+define('LAMSLESSON_PARAM_LEARNER_STRICT_METHOD', 'learnerStrictAuth');
 define('LAMSLESSON_PARAM_PREVIEW_METHOD', 'preview');
 define('LAMSLESSON_PARAM_VERIFY_METHOD', 'verify');
 define('LAMSLESSON_PARAM_JOIN', 'join');
@@ -703,11 +704,23 @@
     $coursename = $coursename.' '.date('n/Y', $coursecreatedate);
     
     $datetime = date('F d,Y g:i a');
-    $plaintext = trim($datetime)
-        .trim($username)
-        .trim($method)
-        .trim($CFG->lamslesson_serverid)
-        .trim($CFG->lamslesson_serverkey);
+
+    // check if we are to use lessonstrictauth
+    if ($method == LAMSLESSON_PARAM_LEARNER_STRICT_METHOD) {
+	$plaintext = trim($datetime)
+            .trim($username)
+            .trim($method)
+	    .trim($lessonid)
+            .trim($CFG->lamslesson_serverid)
+            .trim($CFG->lamslesson_serverkey);
+
+    } else {
+   	 $plaintext = trim($datetime)
+            .trim($username)
+            .trim($method)
+            .trim($CFG->lamslesson_serverid)
+            .trim($CFG->lamslesson_serverkey);
+    }
     $hash = sha1(strtolower($plaintext));
     $url = $CFG->lamslesson_serverurl. LAMSLESSON_LOGIN_REQUEST .
         '?'.LAMSLESSON_PARAM_UID.'='.$username.
Index: moodle/mod/lamslesson/view.php
===================================================================
diff -u -r2e199e6752ced8849b6e67e788652a4459a15aa5 -rbe08f578da5e41c9b041c27b4a0bba15debd4ef7
--- moodle/mod/lamslesson/view.php	(.../view.php)	(revision 2e199e6752ced8849b6e67e788652a4459a15aa5)
+++ moodle/mod/lamslesson/view.php	(.../view.php)	(revision be08f578da5e41c9b041c27b4a0bba15debd4ef7)
@@ -95,7 +95,7 @@
 
 echo $OUTPUT->box_start('generalbox', 'intro');
 if ($canparticipate || $canmanage) {
-  $learnerurl = lamslesson_get_url($USER->username, $USER->firstname, $USER->lastname, $USER->email, $locale['lang'], $locale['country'], $lamslesson->lesson_id, $course->id, $course->fullname, $course->timecreated, LAMSLESSON_PARAM_LEARNER_METHOD);
+  $learnerurl = lamslesson_get_url($USER->username, $USER->firstname, $USER->lastname, $USER->email, $locale['lang'], $locale['country'], $lamslesson->lesson_id, $course->id, $course->fullname, $course->timecreated, LAMSLESSON_PARAM_LEARNER_STRICT_METHOD);
   echo '<div class="centerlink">';
   echo '<span id="learnerbutton" class="yui3-button yui3-link-button"><span class="first-child"> ';
   echo $OUTPUT->action_link($learnerurl, get_string('openlesson', 'lamslesson'), new popup_action('click', $learnerurl, '', array('height' => 600, 'width' => 996)));