DIGITAL BROADCAST TRANSMISSION DEVICE AND DIGITAL BROADCAST RECEPTION DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a digital broadcast transmission device capable of distributing an access control program by a data carousel.SOLUTION: A digital broadcast transmission device 1 comprises: distribution data generating means 13 for generating distribution data having a data type of a data carousel by encrypting an access control program by a master secret key; distribution data scramble means 14 for generating encryption distribution data by encrypting the distribution data by a scramble key; common information generating means 15 for generating common information by encrypting the scramble key by a transmission line protection key; individual information generating means 16 for generating individual information by encrypting the transmission line protection key by a master key; download table generating means 17 for generating a download table including an identifier indicating that the access control program is transmitted by the data carousel; and multiplexing means 19 for multiplexing the generated information.SELECTED DRAWING: Figure 2