Production method of high-safety set-top box

Abstract

The invention discloses a production method of a high-safety set-top box. The production method comprises the following steps: writing a test program and user data into different zones of a memory, wherein the test program comprises test codes of a plurality of test items; assembling the high-safety set-top box; connecting the high-safety set-top box with external equipment and controlling the high-safety set-top box to run the test program for software and hardware testing; after finishing software and hardware testing, writing related information of the high-safety set-top box into the memory; controlling the high-safety set-top box to continuously run the test program, and sending a fusing instruction to a safety chip of the high-safety set-top box to control the safety chip to melt a safety electric fuse; after melting the safety electric fuse in the safety chip, controlling the high-safety set-top box to continuously run the test program for encrypting the user data, and transferring the encrypted user data to continuous memory space starting from a starting address of the zone in which the test program is arranged. Based on the method disclosed by the invention, the production process can be simplified, the product safety can be improved, and the production cost can be reduced.

Description

technical field [0001] The invention belongs to the technical field of set-top boxes, and in particular relates to a production method of a high-security set-top box. Background technique [0002] A set-top box is a device that connects a TV set to an external signal source. It can convert compressed digital signals into TV content and display them on the TV set. In order to protect the genuine set-top box and the interests of operators, the security of the set-top box has been paid more and more attention. At present, high-security set-top boxes have appeared. Compared with traditional set-top boxes, high-security set-top boxes are equipped with security chips inside, which can realize the safe transmission of programs. [0003] The production process of the high-security set-top box is roughly as follows: write multiple test programs in the memory; assemble the high-security set-top box; The serial number is burned into the high-security set-top box; the user program is ...

AI Technical Summary

Problems solved by technology

[0004] The production process of the current high-security set-top box is relatively complicated, and data must be written to the memory many times, and the security is low

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