A system and method facilitate the use of a multi-function computer for an examination. An application implementing the method receives a hash input from a user and, upon successful completion of the examination, displays a hash output. The hash output may be displayed as a visual hash. During the examination, the application or system monitors the multi-function computer to determine whether the user has activated, viewed, or launched any prohibited functions or applications on the multi-function computer. If the user views a prohibited function or application, the examination application does not display the hash output. The system and application implement various security measures to prevent spoofing or duplication of the hash output or tampering with the application.