Digital TV broadcast system and method
A technology of digital TV broadcasting and digital TV, applied in the direction of analog security/charging system, user identity/authority verification, etc., can solve the problem of reducing the security of digital TV broadcasting system, and achieve good scalability, easy expansion and good compatibility Effect
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[0045] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0046] In order to improve the security of the entire digital broadcasting system, especially to solve the problem that TV program providers broadcast illegal TV program signals and illegal personnel insert illegal TV programs through the control transmission network, the present invention issues digital Digitally sign the TV program video stream, superimpose the digital signature result and digital license certificate on the video stream, verify the legitimacy of the digital license certificate on the terminal side, and verify whether the digital signature is correct, thereby effectively improving the system security.
[0047] figure 2 A schematic diagram of a digital television broadcasting system according to the present invention is shown. Such as figure 2 As shown, the digital television broadcasting system 200 according to the presen...
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