| 摘要 |
<p>Systems and techniques for protection and delivery of content are described. Upon initiation of a user account for use in conducting transactions involving delivery of content to a user, digital rights management (DRM) information is created and stored in association with user information. A copy of the DRM information is provided to or made accessible to the user in such a way that the DRM information can be made accessible to a suitable playback device to allow playing of content protected with the DRM information. When a user enters into a transaction to receive content, the DRM information associated with the user is used to protect the content before delivery to the user. When the user wishes to play the content, a removable media device (143,169) storing the user's DRM information must be present to allow playing of the content.</p> |
