RECEIVER AND RECEIVING METHOD

摘要

The procedure of downloading of content data and that of key information is decided to provide a safety service for a content distributor, and a method for starting reproduction of the content data before completing downloading of it is provided to provide a technique easy for a user. The receiver has: an interface part for downloading encoded content data and the key information for decoding the content data from a communication line; a storage part for storing the downloaded content data and key information from the interface part; and a control part which decodes the content data outputted from the storage part using the key information. The control part downloads the key information after the content data is downloaded entirely.