Method, Apparatus, Computer Program, Data Storage Medium and Computer Program Product For Preventing Reception of Media Data From a Multicast Service by an Unauthorized Apparatus
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Abstract
The method for the transmission of media data from a multicast service by a first apparatus to a plurality of second apparatuses is suitable for preventing reception of the media data by an unauthorized second apparatus using a security process. A first apparatus is provided which can be used to provide the media data protected by a security process. A third apparatus is provided which can be used to perform the security process with the first apparatus, performance of the security process between the first apparatus and the third apparatus and, on the basis of this, interchange of at least security data between the first apparatus and the third apparatus in order to provide the media data. A second apparatus is selected which can be used to perform at least one reception process for receiving the media data. A first data transmission link is selected which can be used to couple the first apparatus and the second apparatus at least for the purpose of transmitting the media data. The provided media data is received using the second apparatus via the first data transmission link.
39 Citations
49 Claims
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1-25. -25. (canceled)
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26. A method for the transmission of media data as a multicast service to a plurality of second apparatuses, comprising:
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providing a first apparatus to multicast the media data protected by a security process to the plurality of second apparatuses; providing a third apparatus to initiate messages and exchange security data with the first apparatus for a security process that prevents an unauthorized second apparatus from receiving the media data; selecting a chosen second apparatus from the plurality of second apparatuses to receive the media data; selecting a first data transmission link to couple the first apparatus and the chosen second apparatus to transmit the media data; receiving the media data at the chosen second apparatus via the first data transmission link. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47)
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48. A system transmit media data as a multicast service, comprising:
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a first apparatus to multicast the media data to a plurality of second apparatuses; a third apparatus to initiate messages and exchange security data with the first apparatus for a security process that prevents unauthorized second apparatuses from receiving the media data; and a first data transmission link to couple the first apparatus and the second apparatuses, the first data transmission link being used to transmit the media data from the first apparatus to the second apparatus.
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49. A computer readable storage medium storing a program which when executed on a computer causes the computer to execute a method for the transmission of media data as a multicast service to a plurality of second apparatuses, the method comprising:
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providing a first apparatus to multicast the media data protected by a security process to the plurality of second apparatuses; providing a third apparatus to initiate messages and exchange security data with the first apparatus for a security process that prevents an unauthorized second apparatus from receiving the media data; selecting a chosen second apparatus from the plurality of second apparatuses to receive the media data; selecting a first data transmission link which to couple the first apparatus and the chosen second apparatus to transmit the media data; receiving the media data at the chosen second apparatus via the first data transmission link.
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Specification