A method is provided for transmitting encrypted information for registering an application program. An application program installed on a first program is control device. First application information items having at least one part-information item blocked from user access are transmitted to a second program control device. The second program control device uses coding to calculate an application value from the first application information items. The application value is transmitted to the first program control device. The first program control device uses decoding to ascertain second application information items from the application value. The first application information items and the second application information items are checked for a match when the application program starts to be executed. Prescribable functions of the application program are enabled on the basis of discrepancies resulting from the check.