Method for binding machine and card in mobile multimedia broadcasting system

A mobile multimedia and machine-card binding technology, applied in the field of mobile multimedia broadcasting and communication, can solve the problems of operator's business loss and hidden danger of system security, and achieve the effect of improving anti-cracking ability and protecting interests.

Inactive Publication Date: 2009-12-16
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While this mode of operation brings convenience to users, it also brings hidden dangers to the security of the system: once the CA card is cracked, the cracker can copy a large number of CA cards with the same card number and illegally sell them to other users and to operators. massive business loss

Method used

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  • Method for binding machine and card in mobile multimedia broadcasting system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] figure 1 is a schematic diagram of an embodiment for realizing the method of the present invention. The specific instructions are as follows:

[0022] 100 Each mobile multimedia terminal is uniquely numbered when it leaves the factory, which is fixed in the terminal hardware and cannot be changed. At the same time, the number can be queried by the user through the man-machine interface or provided to the user in the random manual.

[0023] 110 Each CA card has a unique number, which is fixed in the card and cannot be changed. At the same time, the number can be queried by the user through the man-machine interface or provided to the user in the accompanying manual.

[0024] 120 Input and save the valid CA card number and terminal number in the terminal and CA card management system of the multimedia broadcasting system.

[0025] 200 When the user uses a terminal for the first time, insert the CA card into the terminal, and prompt the user through the man-machine int...

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Abstract

A method for realizing machine-card binding in a mobile multimedia broadcasting system, comprising the following steps: (1) determining a unique serial number and card number for each mobile multimedia receiving device and conditional access card; When a conditional access card is used in combination with a mobile multimedia receiving device, the user is prompted through the man-machine interface to send the number of the receiving device and the conditional access card number to the conditional access system to perform machine card binding; The conditional access card user bound with the machine card sends a key and a key update, and carries the mobile multimedia receiving device number bound with the conditional access card number in the key; (4) the conditional access card carries out the conditional access information The decryption process obtains the serial number of the multimedia receiving device in the key, and compares it with the serial number of the receiving device used in conjunction with it. If it is consistent, continue to perform subsequent business processing, and if not, discard the condition information.

Description

technical field [0001] The invention relates to the field of communication, in particular to the field of mobile multimedia broadcasting, and relates to a method for realizing machine-card binding in a mobile multimedia broadcasting system. Background technique [0002] With the development of digital TV technology, viewers will face more and more choices of digital TV programs. However, due to the increase in investment costs, the broadcasting industry requires users to charge certain viewing fees. The conditional access system is a system that implements access control for certain broadcasting services. It uses various digital technologies to scramble programs so that only authorized users can watch (listen) the scrambled programs and realize digital TV. Paid service of (audio) broadcasting system. [0003] The existing digital TV conditional access generally adopts a multi-layer key mechanism to encrypt the transmission program. The key factors of the conditional access...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N7/16H04N5/00H04H60/23H04W4/06H04W12/0431H04W12/48
Inventor 穆志纯
Owner ZTE CORP
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