This case offers several cryptography and security problems, it follows the Olympiad principle. So its tasks are not interrelated, and the points are earned independently for each task. Cryptography knowledge is not needed to solve the case tasks, they are aimed at testing the logical abilities of contestants. Cryptography is currently used in all AI systems to ensure data transfer security, user authorization, access differentiation, secure data storage and user identification. These tasks give contestants an opportunity to test their analytical skills and have a practical exercise with problem solutions integrated into the today’s cryptographic applications. Register and get personal access to cases on the Moodle platform.