METHOD FOR TRANSMISSION AND RECEPTION OF PROGRAM FOR PERSONAL USE

摘要

PURPOSE: To provide a method for transmitting and receiving a personal program in which any transmission destination can receive a program element transmitted to itself in the valid range of a personal transmission service. CONSTITUTION: A program is constituted of personal program elements including the identifiers of transmission destinations, and access to each program element is reserved to a single transmission destination, and conditioned for obtaining an access right for covering an access reference for a service and a private identifier at each transmission destination. An access right control message is constituted so that a service user at each transmission destination can calculate a personal control word for enabling the program elements related with itself to be decoded only by itself based on the cipher text of a route control word and the identifier of the transmission destination.