CN201918992U - Double-way authentication device of satellite receiving terminal and receiving antenna - Google Patents
Double-way authentication device of satellite receiving terminal and receiving antenna Download PDFInfo
- Publication number
- CN201918992U CN201918992U CN2010205915945U CN201020591594U CN201918992U CN 201918992 U CN201918992 U CN 201918992U CN 2010205915945 U CN2010205915945 U CN 2010205915945U CN 201020591594 U CN201020591594 U CN 201020591594U CN 201918992 U CN201918992 U CN 201918992U
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Abstract
The utility model discloses a double-way authentication device of a satellite receiving terminal and a receiving antenna, which is characterized in that the satellite receiving terminal and the receiving antenna are connected through a coaxial cable so as to conduct data communication, and simultaneously, the satellite receiving terminal supplies power for the receiving antenna by the coaxial cable; an authentication module in the satellite receiving terminal generates random data according to a set period, encrypts the random data, and sends the random data to the receiving antenna, an authentication module in the receiving antenna receives the encrypted data, decrypts the encrypted data, then encrypts the data and returns the encrypted data to the satellite receiving terminal, and the satellite receiving terminal decrypts the received data, and judges whether the data is consistent with the random data sent before; if the data is not consistent with the random data, the satellite receiving terminal stops supplying power to the receiving antenna, and if the data is consistent with the random data, the receiving antenna conducts primary authentication according to the mode; and if the authentication is successful, the antenna works normally in the set period, otherwise, the antenna stops working. The system has the advantages of little influencing two receiving parties, and being high in safety, simple in structure, easy to realize, and low in cost so as to be suitable for wide promotion.
Description
Technical field
The utility model relates to the two-way authentication device of a kind of satellite receiving terminal and reception antenna.
Background technology
Launching and the construction of projects to extend radio and TV coverage to all rural villages of No. 9 direct broadcasting satellites of culminant star represented building up of Chinese first generation telstar live broadcast system, indicating also that China's telstar is live to have entered a brand-new stage and will obtain vigorous growth.How effectively to control and to utilize satellite resource and relevant device to become problem.For example the public good of " the village village is logical " engineering is popularized character, has determined that receiving terminal and satellite antenna all are to be provided funds to purchase by government.Art methods can not guarantee the specificity of the said equipment, satellite antenna especially, and this just needs the method and the device of the mutual authentication of a kind of terminal and antenna.
The common method that realizes the reception antenna special use in the existing satellite receiving system has the non-standard down-conversion LNB (low-converter claims tuner again, the chief component of reception antenna) of employing, special LNB supply power voltage etc., and these methods all have some shortcomings.Non-standard down-conversion has caused a large amount of normal component in the existing industry to use, and the LNB of antenna and the TUNER of terminal (tuner) need customization.Special LNB supply power voltage is easy to transform power supply circuits and crosses restriction.So these are not best solutions.
Summary of the invention
The purpose of this utility model is will come in the domestic consumer at present satellite receiving terminal, in order to guarantee specificity that reception antenna equipment uses, to safeguard and provide the rules of country and the order in market between a kind of satellite receiving terminal and the reception antenna better based on the mutual Verification System of regulation agreement.The technical solution adopted in the utility model is as follows:
The device of the two-way authentication of a kind of satellite receiving terminal and reception antenna, it is characterized in that satellite receiving terminal is connected by coaxial cable with reception antenna carries out data communication, and satellite receiving terminal is the reception antenna power supply by coaxial cable simultaneously;
Described satellite receiving terminal comprises authentication module A; Described authentication module A comprises tandom number generator A, encryption equipment A, decipher B and comparator A; Described tandom number generator A is connected with encryption equipment A respectively with decipher B, and described decipher B is connected with comparator A;
Described reception antenna comprises authentication module B, controllable electric power and tuner; Described controllable electric power is connected by power line with authentication module B with tuner;
Described authentication module B comprises tandom number generator B, encryption equipment B, decipher A and comparator B; Described tandom number generator B is connected with encryption equipment B respectively with decipher A, and described decipher A is connected with comparator B.
With prior art compare the utility model has the advantages that conspicuous, specific as follows:
1) more existing technology are easy to be cracked, and are the information of change at random and the utility model transmits mutually, can not imitate, and have increased and have cracked difficulty.
2) periodic authentication is reduced to minimum to satellite receiving terminal and reception antenna Effect on Performance.
3) greatly guaranteed specificity between satellite receiving terminal and the reception antenna.
4) the utility model only need increase a safe microcontroller on LNB, and hardware is made minimum change on the terminal, is easy to realize.
In addition,, not only be convenient to produce, and with low costly be suitable for extensive popularization because it is simple in structure.
Description of drawings
Fig. 1 is a system configuration schematic diagram described in the utility model;
Fig. 2 is that authentication module described in the utility model is formed structural representation;
Among the figure: 1, satellite receiving terminal, 2, reception antenna, 3, coaxial cable, 5, authentication module A, 501, tandom number generator A, 502, encryption equipment A, 503, decipher B, 504, comparator A, 6, authentication module B, 601, tandom number generator B, 602, encryption equipment B, 603, decipher A, 604, comparator B, 7, controllable electric power, 8, tuner.
Embodiment
Reaching embodiment in conjunction with the accompanying drawings is further elaborated the utility model:
As depicted in figs. 1 and 2, satellite receiving terminal 1 is connected by coaxial cable 3 with reception antenna 2 and carries out data communication, and satellite receiving terminal 1 be that reception antenna 2 is powered by coaxial cable 3 simultaneously;
Described satellite receiving terminal 1 comprises authentication module A5; Described authentication module A5 comprises tandom number generator A501, encryption equipment A502, decipher B503 and comparator A504;
Described tandom number generator A501 is used for satellite receiving terminal 1 and produces the random number that proof procedure uses;
Described encryption equipment A502 is used for random number or decipher B decrypted data that tandom number generator A501 produces are carried out encryption;
Described decipher B503, the enciphered data that the reception antenna 2 that is used for that satellite receiving terminal 1 is received is passed back is decrypted processing;
Described comparator A504 is used for the random number that tandom number generator A501 produces is compared with decipher B503 data decryption, simultaneously comparison result is sent to satellite receiving terminal and handles;
Described reception antenna 2 comprises authentication module B6, controllable electric power 7 and tuner 8;
Described tuner 8 is used for sending satellite receiving terminal 1 to by coaxial cable 3 after receiving satellite signal and frequency conversion are amplified;
Described authentication module B6 comprises tandom number generator B601, encryption equipment B602, decipher A603 and comparator B604;
Described tandom number generator B601 is used for reception antenna 2 and produces the random number that proof procedure uses;
Described encryption equipment B602 is used for the random number of tandom number generator B601 generation or the random number of decipher A603 deciphering are carried out encryption;
Described decipher A603 is used for the enciphered data that reception antenna 2 receives is decrypted processing;
Described comparator B604 is used for the random number of tandom number generator B601 generation and the data of decipher A603 reduction are compared, and comparative result is sent to controllable electric power;
Described controllable electric power 7, the result who is used to receive the comparatively validate unit decides tuner 8 by still outage of setting-up time power supply;
Tandom number generator A501 in the described satellite receiving terminal 1 among the authentication module A5 sends encryption equipment A502 to by setting cycle generation random number and encrypts, then these data are sent to reception antenna 2 by coaxial cable 3, after authentication module B6 receives ciphered data in the described reception antenna 2, by decipher A603 with data decryption, decrypted data is passed to satellite receiving terminal 1 after encrypting by encryption equipment B602, after described satellite receiving terminal 1 is received data, give comparator A504 by the decipher B503 among the authentication module A5 after with the data decryption of receiving, comparator A504 judges whether these data are consistent with the random data that sends before, and inconsistent satellite receiving terminal 1 stops to reception antenna 2 power supplies; Consistent then tandom number generator B601 generation random numbers among the reception antenna 2 interior authentication module B6 send encryption equipment B602 to and encrypt, then these data are sent to satellite receiving terminal 1 by coaxial cable 3, after authentication module A5 receives ciphered data in the described satellite receiving terminal 1, by decipher B503 with data decryption, decrypted data is passed to reception antenna 2 after encrypting by encryption equipment A502, after described reception antenna 2 is received data, give comparator B604 by the decipher A603 among the authentication module B6 after with the data decryption of receiving, comparator B604 judges whether these data are consistent with the random data that sends to satellite receiving terminal 1 before, and inconsistent reception antenna 2 control controllable electric powers 7 stop tuner 8 power supplies; Unanimity then reception antenna 2 control controllable electric powers 7 was powered to tuner 8 in above-mentioned cycle time.Wherein terminal can adopt DISEQC (DigitalSatellite Equipment Control) 2.0 agreements with communicating by letter of antenna, also can self-defined communications protocol modulate data on the coaxial cable.The authentication module of general terminal is as the main equipment in the communication, and antenna is as the slave unit in the communication.The antenna verification terminal can be carried out according to the gap periods of appointing in advance.The terminal request antenna authenticates it, if terminal does not have request authentication in the cycle of agreement, then antenna can be taked the measure that corresponding restriction is used, as shutoff signal.Authentication module A5 can utilize the CPU of satellite receiving terminal 1 to realize with software, also can use independently authentication module as adopting safe microcontroller or other special circuit.Authentication module B6 and controllable electric power adopt safe microcontroller to realize, are built among the LNB.Random number, key length and cryptographic algorithm can be selected flexibly according to the performance of hardware and the requirement of fail safe simultaneously.
The above; it only is the preferable embodiment of the utility model; but protection range of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; be equal to replacement or change according to the technical solution of the utility model and inventive concept thereof, all should be encompassed within the protection range of the present utility model.
Claims (1)
1. the device of the two-way authentication of satellite receiving terminal and reception antenna, it is characterized in that satellite receiving terminal (1) is connected by coaxial cable (3) with reception antenna (2) carries out data communication, and satellite receiving terminal (1) be that reception antenna (2) is powered by coaxial cable (3) simultaneously;
Described satellite receiving terminal (1) comprises authentication module A (5); Described authentication module A (5) comprises tandom number generator A (501), encryption equipment A (502), decipher B (503) and comparator A (504); Described tandom number generator A (501) is connected with encryption equipment A (502) respectively with decipher B (503), and described decipher B (503) is connected with comparator A (504);
Described reception antenna (2) comprises authentication module B (6), controllable electric power (7) and tuner (8); Described controllable electric power (7) is connected by power line with authentication module B (6) with tuner (8);
Described authentication module B (6) comprises tandom number generator B (601), encryption equipment B (602), decipher A (603) and comparator B (604); Described tandom number generator B (601) is connected with encryption equipment B (602) respectively with decipher A (603), and described decipher A (603) is connected with comparator B (604).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205915945U CN201918992U (en) | 2010-10-28 | 2010-10-28 | Double-way authentication device of satellite receiving terminal and receiving antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205915945U CN201918992U (en) | 2010-10-28 | 2010-10-28 | Double-way authentication device of satellite receiving terminal and receiving antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201918992U true CN201918992U (en) | 2011-08-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205915945U Expired - Fee Related CN201918992U (en) | 2010-10-28 | 2010-10-28 | Double-way authentication device of satellite receiving terminal and receiving antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201918992U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106714005A (en) * | 2016-12-27 | 2017-05-24 | 深圳市九洲电器有限公司 | Satellite set-top box data transmission method and system |
-
2010
- 2010-10-28 CN CN2010205915945U patent/CN201918992U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106714005A (en) * | 2016-12-27 | 2017-05-24 | 深圳市九洲电器有限公司 | Satellite set-top box data transmission method and system |
| CN106714005B (en) * | 2016-12-27 | 2019-08-13 | 深圳市九洲电器有限公司 | Satellite set top box data transmission method and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110803 Termination date: 20181028 |