Abstract: A method of managing the sending of multimedia contents to a mobile terminal (2) equipped with a security module (3), the multimedia contents being sent in encrypted form from a broadcast server (1) and via a communications network (4). The method comprises the following steps: a) sending to the mobile terminal (2) rights-of-use data for a multimedia content, b) storing said rights-of-use data in the security module (3) of the mobile terminal (2), c) generating a series of encryption/decryption keys, the series of decryption keys being generated from rights-of-use data stored in the security module (3), d) sending the multimedia content to the mobile terminal (2), the content being encrypted with successive keys from the series of encryption keys that has been generated, and e) the mobile terminal receiving the multimedia content and decrypting the multimedia content using the decryption keys from the series of decryption keys generated in the security module of the mobile terminal.

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 method of managing the sending of multimedia contents to a mobile terminal (2) equipped with a security module (3), the multimedia contents being sent in encrypted form from a broadcast server (1) and via a communications network (4). The method comprises the following steps: a) sending to the mobile terminal (2) rights-of-use data for a multimedia content, b) storing said rights-of-use data in the security module (3) of the mobile terminal (2), c) generating a series of encryption/decryption keys, the series of decryption keys being generated from rights-of-use data stored in the security module (3), d) sending the multimedia content to the mobile terminal (2), the content being encrypted with successive keys from the series of encryption keys that has been generated, and e) the mobile terminal receiving the multimedia content and decrypting the multimedia content using the decryption keys from the series of decryption keys generated in the security module of the mobile terminal.

Abstract: A method of creating a secure link between a data processing device (MOB) and a security module (USIM), the data processing device being adapted to communicate with a security module storing a secret data item (k) necessary for the execution by the device of a data processing task, the data processing device and the security module being adapted to communicate with a telecommunications network (RES), wherein the method comprises the steps of: identifying the data processing device (MOB) and the module (USIM) for which a secure link is to be set up in order to send said secret data item (k) from the module to the device; a step of delivering an encryption key (K) in which a trusted server (SC) connected to the telecommunications network delivers an encryption key (K) both to the module (USIM) and to the data processing device (MOB) that have been identified; an encryption step in which said secret data item (k) is encrypted in the module by means of said encryption key (K); a transmission step in which the res

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: Communication process with key encryption escrow and recovery systems.