The header looks like this: "X-SafeExamBrowser-ConfigKeyHash" = 81aad4ab9dfd447cc479e6a4a7c9a544e2cafc7f3adeb68b2a21efad68eca4dc When the option "Use Browser & Config Keys (send in HTTP header)" is activated, SEB adds an additional header to every HTTP request containing the Base16 encoded SHA256 hash of the Config Key concatenated with the requested URL (which protects the key and keeps it secret, since it changes not only for each SEB config but also for each requested URL). So as soon as LMS/assessment systems will support the Config Key, no manual copy-paste of keys will be necessary for each different config file and SEB version. The most important advantage of the Config Key is, that it can be calculated in an exam system, if that system automatically generates SEB settings for an exam (server-side). But still another version of SEB will calculate the same Config Key for this newly saved config file. The Config Key changes when you alter and re-save a SEB config file. The Config Key is also same in each platform version of SEB, so SEB for Windows and SEB for iOS will generate the same key as SEB for macOS.
Otherwise copy this key to the according field in your quiz/exam settings in the LMS/assessment system.Äifferent than the Browser Exam Key, the Config Key of existing settings doesn't change, when the SEB version is updated (even if this version introduces new setting options).If your e-assessment system generates SEB settings itself, then it should generate the according Config Key as well and no manual action should be necessary.Enable the option "Use Browser & Config Keys (send in HTTP header)" in Exam preferences pane (settings key sendBrowserExamKey = true).To configure the Config Key feature, these steps are necessary: SEB 3.0 for Windows (SEB 2.4 for Windows supports the Config Key, but there might be compatibility issues because of some other limitations of SEB 2.4).To use the Config Key feature, an e-assessment system has to have support for the Config Key feature built in and the following SEB versions (or later versions) must be used: To achieve this, a key is generated for the settings SEB is using. The Config Key feature can be used by the quiz module of a learning management system (LMS) or another e-assessment system to ensure that the Safe Exam Browser (SEB) exam client is correctly configured/secured (either client settings or settings for a specific exam ). See this blog by Gavin Henrick about Securing a Moodle Quiz on an iPad.Request Hash For Validating SEB Config in the LMS/E-Assessment System.The Respondus LockDown Browser which carries out similar controls however also works on iOS.The Safe Exam Browser only works on Windows and Mac OS X, See for details.See this forum thread about Secure Quiz using Chromebook Kiosk App and User Agent. With Chromebooks, you can disable students’ access to browse the web during an exam in addition to disabling external storage, screenshots, and the ability to print. See this article about three ways of using chromebooks for student assessments: Chromebooks are a secure platform for administering student assessments, and when setup properly, these devices meet K-12 education testing standards. This is why it is only avaiable for certain systems. In order to lock everything down, SEB has to do a lot of operating-system-specific things. It would be a lot of work to make a version of SEB for Chromebooks.
Chromebooks run a particular variant of Linux, so SEB is not avaialble there. Safe Exam Browser is only available for Windows and Mac.