Bidirectional authentication system for satellite receiving terminal and receiving antenna
A satellite receiving and receiving antenna technology, which is applied in the field of two-way authentication system, can solve problems such as non-solution and unusable devices, and achieve the effects of easy production, easy implementation, and guaranteed specificity
Active Publication Date: 2012-11-14
CHINA HUALU GRP
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- Application Information
AI Technical Summary
Problems solved by technology
Non-standard down-conversion makes a large number of standard devices in the existing industry unusable, and the LNB of the antenna and the TUNER (tuner) of the terminal need to be customized
Special LNB power supply voltage is easy to modify the power supply circuit to cross the limit
So these are not optimal solutions
Method used
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Embodiment Construction
[0041] In conjunction with accompanying drawing and specific embodiment, the present invention is further elaborated:
[0042] like figure 1 and figure 2 As shown, the satellite receiving terminal 1 and the receiving antenna 2 are connected through the coaxial cable 3 for data communication, and the satellite receiving terminal 1 supplies power to the receiving antenna 2 through the coaxial cable 3;
[0043] The satellite receiving terminal 1 includes an authentication module A5; the authentication module A5 includes a random number generator A501, an encryption module A502, a decryption module B503 and a comparison authentication module A504;
[0044] The random number generator A501 is used for the satellite receiving terminal 1 to generate random numbers used in the verification process;
[0045] The encryption module A502 is used to encrypt the random number generated by the random number generator A501 or the data decrypted by the decryption module B;
[0046] The dec...
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The invention discloses a bidirectional authentication system for a satellite receiving terminal and a receiving antenna, which is characterized in that the satellite receiving terminal and the receiving antenna are connected via a coaxial cable for data communication, and simultaneously the satellite receiving terminal supplies power for the receiving antenna via the coaxial cable; a satellite receiving terminal inner authentication module generates random numbers based on a set period, encrypts the random numbers, and sends the encrypted random numbers to the receiving antenna; a receiving antenna inner authentication module receives and decrypts the encrypted data, encrypts and returns the decrypted data to the satellite receiving terminal; the satellite receiving terminal receives and decrypted the data, and judges whether the data are consistent with the random numbers sent before, if not, the satellite receiving terminal stops supplying power for the receiving terminal, and if so, primary authentication is carried out by the receiving antenna as the above mode; and if the authentication is successful, the antenna normally works in the preset period, and otherwise, the antenna stops working. The system in the invention has the advantages of less influence on the receiver and the sender, high safety, simple structure, easy implementation, low cost and suitability for wide promotion.
Description
technical field [0001] The invention relates to a two-way authentication system for a satellite receiving terminal and a receiving antenna. Background technique [0002] The launch of the ChinaSat 9 live broadcast satellite and the construction of the radio and television "Village to Village" project represent the completion of China's first-generation TV satellite live broadcast system, and also indicate that my country's TV satellite live broadcast has entered a new stage and will get vigorous development. How to effectively control and utilize satellite resources and related equipment has become a topic. For example, the public welfare nature of the "Village Access" project determines that the receiving terminals and satellite antennas are all purchased by the government. The methods in the prior art cannot guarantee the specificity of the above equipment, especially the satellite antenna, which requires a method and device for mutual authentication between the terminal ...
Claims
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IPC IPC(8): H04L9/32H04B7/185
Inventor 朱兆勋陈宗圣李勇雷环利成战刚蔡向阳
Owner CHINA HUALU GRP