摘要:
Systems and methods for secure content distribution, including a content server, a rights management server, a residential gateway communicating with the content server and the rights management server via a network, and a playback device communicating with the residential gateway via a local network. The residential gateway receives protected content from the content server. The playback device requests access to the protected content from the residential gateway. The residential gateway requests access to the protected content from the rights management server by including information uniquely identifying the playback device. The rights management server provides access information to the residential gateway when the access information satisfies predetermined criterion for playback devices associated with the residential gateway. The residential gateway decrypts the protected content using the access information and encrypts the decrypted content for distribution to the playback device via a secure link formed between the residential gateway and the playback device.
摘要:
Systems and methods for securing communications in a playback device using a key base and at least one key contribution in accordance with embodiments of the invention are disclosed. In one embodiment, a process includes generating a key base using a decryption key and at least one key contribution, where the decryption key can be recovered using the key base and the at least one key contribution, receiving the key base, receiving the at least one key contribution, sending the key base to a decryption module, sending the key contribution to a control module, performing a control feature on the piece of content using the control module, providing the key contribution to the decryption module when the control feature is performed, generating the decryption key using the key base and the at least one key contribution, and accessing at least a portion of the piece of content.
摘要:
Systems and methods are disclosed that authenticate devices or users, and enable playback of secured streaming content through a media player. In one embodiment, the invention is a system for receiving secure content over an unmanaged network, including a security application configured operate on a user device with access to a network, where the security application is configured to receive a request for playlist data from the media player, send a playlist request to a content server, receive playlist data from the content server, send playlist data to a media player, receive a security access request from the media player, send a security access request to a security server, receive security access data from the security server; and send security access data to a media player.
摘要:
Systems and methods for secure content distribution to playback devices connected to a local network via a residential gateway using secure links are disclosed. One embodiment of the invention includes a content server, a rights management server, a residential gateway configured to communicate with the content server and the rights management server via a network, and a playback device configured to communicate with the residential gateway via a local network. In addition, the residential gateway is configured to receive protected content from the content server, the playback device is configured to request access to the protected content from the residential gateway, the residential gateway is configured to request access to the protected content from the rights management server and the request includes information uniquely identifying the playback device, the rights management server is configured to provide access information to the residential gateway when the information uniquely identifying the playback device satisfies at least one predetermined criterion with respect to playback devices associated with the residential gateway, the residential gateway and the playback device are configured to create a secure link between the residential gateway and the playback device via the local network, and the residential gateway is configured to decrypt the protected content using the access information provided by the rights management server and to encrypt the decrypted content for distribution to the playback device via the secure link.
摘要:
Systems and methods for collecting audience measurement data using content protection signaling messages while playing back content are disclosed. One embodiment includes receiving content, where content is encrypted using at least one encryption key, receiving a content protection signaling message, where the content protection signaling message is associated with the content and includes a reference timestamp and decryption information associated with the content, processing the content protection signaling message to extract the reference timestamp and the decryption information and generating a message processing timestamp based on the time the content protection signaling message is processed, collecting audience measurement data and saving the audience measurement data into memory, where the audience measurement data includes the reference timestamp and message processing timestamp, recovering at least one decryption key using the decryption information, and decrypting the content using the at least one decryption key.
摘要:
Systems and methods are disclosed that authenticate devices or users, and enable playback of secured streaming content through a media player. In one embodiment, the invention is a system for receiving secure content over an unmanaged network, including a security application configured operate on a user device with access to a network, where the security application is configured to receive a request for playlist data from the media player, send a playlist request to a content server, receive playlist data from the content server, send playlist data to a media player, receive a security access request from the media player, send a security access request to a security server, receive security access data from the security server; and send security access data to a media player.
摘要:
Managing access to digital content within a particular domain, including: receiving the digital content at a first client device; decrypting the received digital content at the first client device using a first key; transcoding the digital content to another format; re-encrypting the transcoded content using a second key, wherein the second key is obtained by one of: (1) directly from a server; or (2) indirectly by deriving it locally based on information received from the server; and transmitting the re-encrypted content to a second client device, wherein the second client device obtains the second key and decrypts the re-encrypted content at the second client device.