Content e.g. audio-video content, storing method for home network, involves encrypting content with key to obtain encrypted content which is then encrypted with another key to obtain encrypted content, and sending content to storage device

摘要

The method involves obtaining a calculation parameter, associated to an encryption key, based on a function of preset access information of content, to calculate another encryption key. Data for calculating the parameter is stored. The content is encrypted with the latter key to obtain an encrypted content which is then encrypted with the former key to obtain an encrypted content. The encrypted content is sent to a storage device. Independent claims are also included for the following: (A) a method for reading a content from a storage device towards a receiver device (B) a computer program product having program code instructions for executing a content storage method (C) a computer program product having program code instructions for executing a content reading method (D) a computer readable medium having instruction for implementing a content storage method (E) a computer readable medium having instructions for implementing a content reading method (F) a source device for implementing a storage medium on a storage device (G) a receiver device for receiving content from a storage device.