Actualización

main/inc/lib/javascript/jquery.nocopypaste.js

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+/**
+ * When included, this snippet prevents contextual menus and keystrokes that
+ * make it possible to cut/paste/copy text from the page.
+ * This is useful for very secure exams.
+ * @author Alberto Torreblanca
+ */
+$(document).ready(function(){
+    $(document).on("cut copy paste contextmenu",function(e) {
+        e.preventDefault();
+    });
+    $(document).keydown(function(e) {
+        var forbiddenKeys = new Array('c', 'x', 'v', 'p', 's');
+        var keyCode = (e.keyCode) ? e.keyCode : e.which;
+        var isCtrl;
+        isCtrl = e.ctrlKey
+        if (isCtrl) {
+            for (i = 0; i < forbiddenKeys.length; i++) {
+                if (forbiddenKeys[i] == String.fromCharCode(keyCode).toLowerCase()) {
+                    return false;
+                }
+            }
+        }
+        return true;
+    });
+});