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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.

Inactive Publication Date: 2014-01-01
SHENZHEN JIUZHOU ELECTRIC
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] The purpose of the present invention is to provide a kind of protection method of set-top box, system and set-top box and encryption device, aim at solving the set-top box system that exists in the prior art can directly access device after the initialization of IIC bus, the hardware and software of set-top box are easy to be destroyed like this Third-party copying, lack of corresponding protection mechanism

Method used

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  • Set top box protection method and system, set top box and encryption device
  • Set top box protection method and system, set top box and encryption device
  • Set top box protection method and system, set top box and encryption device

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Embodiment Construction

[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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Abstract

The invention belongs to the technical field of encryption, and provides a set top box protection method and system, a set top box and an encryption device. The set top box protection method comprises the following steps that a set top box MCU sends unencrypted communication data to the encryption device; the set top box MCU sends the unencrypted communication data to a password bank of the MCU to be encrypted, and first encrypted data are obtained; the set top box MCU sends a communication data reading request message to the encryption device; the set top box MCU receives second encrypted data returned and encrypted by the encryption device; the set top box MCU compares the first encrypted data with the second encrypted data; if after comparison, the first encrypted data are the same as the second encrypted data, a set up box system runs continuously; if after comparison, the first encrypted data are different from the second encrypted data, the set top box system stops running. By means of the set top box protection method and system and the encryption device, the encryption level of the set top box can be improved, and copy of software information can be prevented in the aspect of hardware.

Description

technical field [0001] The invention belongs to the technical field of encryption, and in particular relates to a protection method and system of a set-top box, a set-top box and an encryption device. Background technique [0002] In the prior art, the set-top box uses direct communication between the main chip and the device, and the main chip of the set-top box can directly access the device after being initialized through IIC. However, the defect brought by this method is: the initialization of the set-top box system through the IIC bus After that, the device can be directly accessed, so the hardware and software of the set-top box are easily copied by a third party, and there is a lack of corresponding protection mechanism. Contents of the invention [0003] The purpose of the present invention is to provide a kind of protection method of set-top box, system and set-top box and encryption device, aim at solving the set-top box system that exists in the prior art can di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/4623
Inventor 阳勇潘家顶
Owner SHENZHEN JIUZHOU ELECTRIC
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