Systems and methods for detecting and interfering with compromised devices and unauthorized device relocation in a communication network are disclosed. The described embodiments may be deployed in a content delivery network where receivers have been compromised in a manner that renders the conditional access system (CAS) inoperative at controlling the receivers' ability to receive content. In some embodiments, alternate commands not protected by the CAS system may be used to detect hacked devices and interdict same. In some embodiments, service devices in the content delivery network may allow for detection of unauthorized device relocation.

The invention relates to a process for transmitting streaming digital content to a client device for access to digital content. The inventive process makes it possible, in particular, to apply an access control system to the protection of direct-mode video streams. The process also makes it possible to significantly improve the security and safety of the system, based on a periodic mandatory back-communication on the part of the client device.

A batch rights objects (ROs) acquisition method and system is provided to enable a mobile terminal to acquire multiple rights objects in a batch processing manner. A rights object acquisition method according to an embodiment of the present invention includes transmitting a rights object request message requesting one or more rights objects of content objects from a mobile terminal to a rights issuer; creating, at the rights issuer, a rights object response message containing at least one of rights objects indicated by the rights object request message and at least one signature in response to the rights object request message; and transmitting the rights object response message from the rights issuer to the mobile terminal.

Systems and methods for sharing content between devices are disclosed. To request a shared piece of media content, a playback device generates and sends a request to content server. The playback device includes information in the request that indicates the playback capabilities of the device. The content server receives the request and determines the playback capabilities of the playback device from the information in the request. The content server then determines the assets that may be used by the playback device to obtain the media content and generates a top level index file for the playback device that includes information about the determined assets. The top level index file is then sent to the playback device that may then use the top level index file to obtain the media content using the indicated assets.

Systems and methods are provided for a media provider to allow a user to access media objects with a third-party partner that authenticates the user and authorizes the user to access certain media objects. The media provider offers access to media objects, such as video content or audio content. The partner, through a relationship with the media provider, similarly offers access to the media provider's media objects, for example, as a service or benefit to the partner's customers or users. In particular, a partner integration server mediates user authentication and authorization by the partner. The partner integration server also allows the media provider to easily and flexibly to add and integrate additional partners.

Method for providing at least one client device (10), from a server (20) configured to control access to audio/video content, with management messages (40), comprising:—determining a first set (41) of management messages pertaining to said client device (10),—transmitting said first set through a first communicatio n channel (51) in a repetitive manner,—receiving, from said client device, a notification (15) comprising at least a client device identifier (11),—determining a second set (42) of management messages, said second set comprising all or part of the first set,—determining a token (45) associated with the second set,—receiving, from the client device, a confirmation (15′) comprising data pertaining to the token,—verifying the data pertaining to the token and, in case of a positive verification, removing all or part of the second set from the transmission through the first communication channel.

A system that provides for the accessing and playing of media files having differing associated rights such as non-DRM media files, purchased and downloaded media files, subscription download files such as tethered downloads, and subscription streamed DRM files. The system also provides a method and user interface for sharing a media collection among computing devices in communication via a network. The system allows access and playback, from each computing device on a network, of all media files in a media collection, regardless of their associated rights.

Encrypting a document, including: generating first and second nonces; combining the first and second nonces to generate a secret key that is deterministically defined by the first and second nonces; encrypting the document using the secret key to produce an encrypted document; delivering the first nonce to a license manager; and delivering the second nonce to a rights manager.

Device, computer program product and method for checking properties of resources, wherein a checking device for checking properties of resources of a web server includes a calculation unit for calculating an identifier identifying a particular resource using the particular resource, a detection unit for detecting a license requirement for the particular resource using the calculated identifier, and a determination unit for determining an existing license for the web server in the case of a license requirement detected for the particular resource using the calculated identifier, such that unauthorized posting of a particular resource to a web server can be easily detected and prevented.

Systems and methods are provided for a media provider to allow a user to access media objects with a third-party partner that authenticates the user and authorizes the user to access certain media objects. The media provider offers access to media objects, such as video content or audio content. The partner, through a relationship with the media provider, similarly offers access to the media provider's media objects, for example, as a service or benefit to the partner's customers or users. In particular, a partner integration server mediates user authentication and authorization by the partner. The partner integration server also allows the media provider to easily and flexibly to add and integrate additional partners.