Digital video processing device, digital program system and matching method thereof
A technology for digital video and processing devices, applied in the field of digital video processing devices, can solve the problems of not identifying different set-top boxes, and the operator's content cannot be effectively protected, and achieve the effect of guaranteeing content
Active Publication Date: 2019-01-01
深圳市纽格力科技有限公司
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Problems solved by technology
Generally, set-top boxes use Certificate Authority (CA) cards to decrypt encrypted streams when they are working. At present, ordinary encryption methods do not recognize different set-top boxes, that is, a CA card can support the decryption on any one. The system's set-top box is used, so the operator's content cannot be effectively protected
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[0042] As an embodiment, the above-mentioned device 1 also includes:
[0043] The establishment unit 16 is configured to establish the mapping relationship between the current digital video processing device identification information and the current certificate authorization card identification information in the mapping relationship table when the search unit 14 cannot find the current mapping relationship.
[0044] As another embodiment, the above-mentioned device 1 also includes:
[0045] The erasing unit is configured to obtain an erasing instruction for erasing the mapping relationship between the digital video processing device identification information and the certificate authorization card identification information in the mapping relationship table, and execute the erasing of the corresponding mapping relationship according to the erasing instruction.
[0046] As mentioned above, the identification information of the digital video processing device is main chip iden...
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The invention discloses a digital video processing device, a digital program system and a matching method thereof. When a digital video processing device and a certificate authority card work together, there is a need to judge the matching relation between the digital video processing device and the certificate authority card. According to the invention, a mapping relation table between digital video processing device identification information and certificate authority card identification information is pre-stored, whether a digital video processing device is matched with a certificate authority card is judged by judging whether the current certificate authority card identification information is in the current mapping relation established based on the current digital video processing device identification information, and then, whether or not to execute subsequent digital video processing such as descrambling can be judged on the basis. Thus, a legal certificate authority card can only be used on one digital video processing device, and the content of operators is protected effectively.
Description
technical field [0001] The present application relates to the communication field, in particular to a digital video processing device, a digital program system and a matching method thereof. Background technique [0002] With the rapid development of digital technology, digital encryption technology is used for most content now, but how to protect the content from being cracked has become an important issue. Generally, set-top boxes use Certificate Authority (CA) cards to decrypt encrypted streams when they are working. At present, ordinary encryption methods do not recognize different set-top boxes, that is, a CA card can support the decryption on any one. The system's set-top box is used, so the operator's content cannot be effectively protected. Contents of the invention [0003] The present application aims to solve one of the above-mentioned technical problems at least to a certain extent. [0004] According to the first aspect of the present application, the presen...
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IPC IPC(8): H04N21/418H04N21/4623H04N21/4627
CPCH04N21/4181H04N21/4623H04N21/4627
Inventor 董雪峰高晖曹莉华
Owner 深圳市纽格力科技有限公司