Set top box protection method and system, set top box and encryption device
A technology of encryption device and protection system, applied in image communication, selective content distribution, electrical components, etc., can solve the problems of lack of protection mechanism, hardware and software of set-top box being easily copied by third parties, etc.
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[0036] In order to make the object, technical solution and beneficial effects of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0037] In the embodiment of the present invention, the communication data is encrypted by the encryption device writing a key to the communication data of the set-top box, and the set-top box MCU (Micro Control Unit, micro control unit) will compare the encrypted data read from the encryption device with The data obtained through its own internal encryption library determines whether the system can operate normally by judging whether the data of the two are consistent. Therefore, the problem that the set-top box system in the prior art can directly access devices after initialization thr...
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