Transmitter apparatus, receiver apparatus and receiving method

摘要

A transmitter apparatus, receiver apparatus and receiving method which can stably distribute large-capacity data contents at the practical level irrespective of the network connection environment of the user are provided. To serve the above purpose, a broadcasting station attaches link information to encrypted moving picture contents and transmits the thus obtained data. A server holds an encryption key used to decrypt the encrypted moving picture contents. A television receiver stores received encrypted moving picture contents and link information on a hard disk. Then, it acquires an encryption key from the server via Internet based on the link information and decrypts the encrypted moving picture contents.