公开(公告)号：WO2007044825A3

公开(公告)日：2009-04-23

申请号：PCT/US2006039778

申请日：2006-10-10

Applicant: APPLE INC ,  FARRUGIA AUGUSTIN J ,  DOWDY THOMAS ,  FASOLI GIANPAOLO

Inventor： FARRUGIA AUGUSTIN J ,  DOWDY THOMAS ,  FASOLI GIANPAOLO

IPC: G06F17/30

CPC classification number: G06F21/10 ,  G06F21/6218

Abstract: Distributing a single media storage structure to a device (e.g., a computer, portable player, etc.) that connects to a network. The media storage structure includes first and second pieces of encrypted content. Based on whether the device is allowed to access the first piece of content, the second piece of content, or both, the device is provided with a set of keys for decrypting the pieces of the content that the device is able to access. The provided set of keys might include one or more keys for decrypting only one of the two encrypted pieces of content. Alternatively, it might include one or more keys for decrypting both encrypted pieces of content. Based on the provided set of keys, the device can decrypt and access either one of the two pieces of content in the media storage structure or both pieces of encrypted content in the media storage structure.

Abstract translation: 将单个媒体存储结构分发到连接到网络的设备（例如，计算机，便携式播放器等）。 媒体存储结构包括第一和第二片加密内容。 基于该设备是否被允许访问第一条内容，第二条内容或两者，该设备被提供有用于解密设备能够访问的内容的一组密钥。 所提供的密钥集可以包括用于仅解密两个加密的内容中的一个的一个或多个密钥。 或者，它可以包括用于解密加密的内容片段的一个或多个密钥。 基于所提供的一组密钥，设备可以解密和访问媒体存储结构中的两条内容中的任何一个或者媒体存储结构中的两条加密内容。