Abstract: The present invention proposes an apparatus and a method for selecting a transport control mechanism to be used between a first device (110) and a second device (120). Firstly, a first unit (231) obtains first information indicating the transport control mechanism supported by the first device (210) and second information indicating the transport control mechanism supported by second device (220); then, a second unit (232) selects the transport control mechanism to be used between the first device (210) and the second device (220) on the basis of the first and second information and a preset rule. With the apparatuses and methods provided in the present invention, the problem of how to select the transport control mechanism to be used between the media server and the media client is well solved. Furthermore, by applying the defined messages and the interaction process in IGRS protocols, there is no need for additional messages nor for an additional interaction process.

Abstract: A method of dynamically determining the access rights of a client to a record comprises receiving an access request from the client with respect to the record, determining one or more contexts relating to the access request, calculating a score for each determined context, calculating an overall score from the context scores, accessing a rights policy for the record, the rights policy defining a plurality of different rights with respect to the record, each with a respective minimum score, and determining the client's access rights according to a comparison of the overall score to the score for each right in the rights policy.

Abstract: The invention provides a method and apparatus for pseudonym generation and authentication. The method comprises the steps of: transmitting a user identity IDuser to a Personal Identity Manager (PIM); receiving a set of public parameters and a prime pseudonym Pprime corresponding to the ID user from the PIM; and selecting at least two random parameters, and generating a sub-pseudonym Ppseu with the at least two random numbers, the set of public parameters, and the prime pseudonym Pprime.

Abstract: To overcome the drawback of difficulties when interchanging a patient's health record among different health information management systems and yet keep the patient's privacy, this invention proposes a method comprising the steps of: extracting, from a certificate, a signature of a first service provider and a first identifier; generating a second identifier corresponding to the first identifier; sending a request to any one of a second identifier manager and the first service provider so as to request a record associated with the first identifier; receiving the requested record from any one of the second identifier manager and the first service provider; and associating the requested record with the second identifier.

Abstract: The present invention provides a method for authenticating the copy right of a device by an offline way, a digital right protection system, and a method for providing digital contents, which mainly includes embedding an authentication agent into the digital content, said authentication agent, instead of the copyright issuer at the server side, authenticates the rendering qualification of the device before rendering the digital content. If the device is a non-compliant device, the authentication agent will not permit the device to render the digital content. The technique of the invention realizes offline digital right management, so it is not restricted by the network condition and can be applied widely in various environments.

Abstract: The present invention discloses a method for using digital content. According to this method, a user terminal acquires an authorization file at least including a predetermined processing right from the authorization terminal, the predetermined processing right allowing the user terminal to process the digital content in the predetermined manner, e.g. edit the digital content. When the processing right requested by the user is included in the authorization file that the user terminal acquires, the user can perform the predetermined processing on the digital content. This invention also discloses apparatus for using the digital content. The method and apparatus of the present invention can bring better convenience to the user and protect profits of the content provider as well.

Abstract: A method of rights management in a first device connected to digital data content, said first device comprising a right for accessing said digital data content and available state information for reflecting the state of use of said digital data content, said method comprising the steps of: —receiving by said first device a request for a state information from a second device; —comparing the content of said request with said available state information; —selecting said requested state information in said available state information according to the result of said comparing step; —transferring said requested state information to said second device via a communication channel; and—duplicating said fight to said second device.