DATA FILE INCLUDING ENCRYPTED CONTENT

摘要

The invention relates to a method for assembling a data file (10, 20) including encrypted content and a rights object (18, 26) enabling at least one electronic device (35) to decrypt the encrypted content. In order to enable a fast access to the rights object, the method comprises inserting an offset descriptor (50) into the data file. The offset descriptor includes an indication of an offset at least of the portion (17, 25) of the data file comprising the rights object. A further method comprises at the at least one electronic device (35) receiving the data file from a content provider (31), evaluating the offset descriptor during a continued reception of the data file, and requesting the content provider to provide immediately a portion of the data file beginning at the offset.