Abstract: The invention concerns a method for reproducing digital content including the following steps: receiving (E222) an identifier (Id?) of the digital content from a secure electronic entity; extracting (E226) a digital watermark of the digital content; controlling (E232) the reproduction of the content based on a comparison between the extracted watermark and the identifier. The invention concerns a reproducing device, an electronic entity and related systems.

Abstract: A system that distributes content access data which provides rights management data indicating a right of a user to reproduce and/or copy the distributed content. The system includes an applications device including a trusted player for receiving, reproducing and/or copying the content, and a smart card access device for accessing a smart card, such as a Subscriber Identity Module (SIM), which is uniquely associated with the user. A trusted server communicates the content access data to the smart card via a communications network by encrypting the content access data using an encryption key pre-stored on the smart card and known to the trusted server. A facility is thus provided for cost effectively distributing content and managing rights in the content using security facilities inherent in the smart card.

Abstract: A system for accessing data (10) associated with user rights (12) for the data (10), expressed in a specific language for expressing rights, on at least one consultation station (4) including elements for recovering (14) user rights adapted to identify user rights expressed in one or more different languages for access to the data (10). The system is characterized in that it includes a unit (16) for adapting user rights associated with elements (18) for determining the specific language wherein the user rights (12) are expressed associated with the data (10), to elements (20; 78) for determining the language(s) expressing user rights identified by the elements (14) for recovery from the consultation station (4), and to elements (22) converting user rights (12) for converting the user rights (12) associated with the data (10).

Abstract: A system distributes content access data to a user. The content access data provides rights management data indicating a right of the user to reproduce and/or copy distributed content. The system comprises an applications device including a trusted player for receiving and reproducing and/or copying the content, and a smart card access device operable to access a smart card which is uniquely associated with the user. The smart card may be, for example, a Subscriber Identity Module (SIM). The system includes a trusted server operable to communicate securely the content access data to the smart card via a communications network by encrypting the content access data using an encryption key pre-stored on the smart card and known to the trusted server. The smart card is operable to decrypt the content access data using the smart card key.

Abstract: A method of propagating invocation contexts through a distributed object system that includes an application management API interface and wherein each object is associated with an interceptor and with a manager of the context of an incoming request received by the interceptor when the object is invoked. A thread manager is provided for the interceptor for the purpose, firstly, of establishing an association between a thread of an object directly consecutive to an incoming request invoking the object and the context of the incoming request as identified by the context manager and, secondly, of recovering the context from the thread manager and associating it with the outgoing request from the object. A method is added to the application management API interface enabling it to recover the current context from the thread manager and to associate it with any thread of the object indirectly consecutive to the incoming request.