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Encryption method and device for anti-copy plate of electronic product

A technology of electronic products and encryption methods, applied in computer security devices, electrical digital data processing, instruments, etc., can solve the problems of high hardware cost, reliability, and poor stability, and achieve the effect of facilitating software intellectual property rights

Inactive Publication Date: 2011-02-09
QUECLINK WIRELESS SOLUTIONS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The technical problem to be solved by the present invention is to overcome the defects of poor reliability and stability of the anti-copy board method in the prior art and high hardware cost, and provide a kind of anti-copy electronic product that does not increase hardware cost and has high reliability and stability. Board encryption method and device

Method used

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  • Encryption method and device for anti-copy plate of electronic product
  • Encryption method and device for anti-copy plate of electronic product
  • Encryption method and device for anti-copy plate of electronic product

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Embodiment Construction

[0041] Hereinafter, preferred embodiments of the present invention are given in conjunction with the drawings to illustrate the technical solutions of the present invention in detail.

[0042] The method of the present invention mainly uses the existing components on the PCB of the electronic product and cooperates with the system software to realize the anti-copy board encryption without increasing the hardware cost, so that the system software can judge whether it is running on the original hardware . If it is determined that it is running on the cloned hardware, the system software will enter an abnormal state, making the pirated cloned electronic product unable to be used normally.

[0043] Electronic products usually have a Flash chip used to store system software on the PCB board. In addition to the normal storage space, this Flash chip often has a secure space of tens to hundreds of bytes, which is mainly provided for users to store some data used to control product functio...

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Abstract

The invention discloses an encryption method for an anti-copy plate of an electronic product, which comprises the following steps of: 1, generating hash codes according to preset keys and device sequence numbers only identifying the product in the production process of the factory electronic product, and writing the hash codes into the user programming space of Flash of the factory electronic product; 2, generating new hash codes according to keys the same as that in the step 1 and the device sequence numbers only identifying the tested electronic product, which is read from the Flash of the tested electronic product, through system software in the operation process of the system software; and 3, reading out the hash numbers generated in the step 1 from the user programming space of the Flash of the tested electronic product, and comparing the hash number with the new hash numbers generated in the step 2; if the hash numbers are the same, judging that the system software operates normally; and otherwise, judging that the system software is in an abnormal state. The invention also discloses an encryption device for the anti-copy plate of the electronic product, corresponding to the method. The invention has the advantages of high reliability and stability, without increasing hardware cost.

Description

Technical field [0001] The invention relates to an anti-copy board encryption method and device for electronic products, in particular to an anti-copy board encryption method and device for electronic products using a hash algorithm. Background technique [0002] With the rapid development of the current domestic mobile phone, GSM / GPRS communication module and other electronic products, the development and production of electronic products, through the use of PCB (short for Printed Circuit Board, the Chinese name is printed circuit board, also known as printed circuit board) copy board technology to the original The cloning of factory's electronic products has become an increasingly severe piracy, causing serious infringements on the intellectual property rights of the original factory's products. [0003] The core components of electronic products mainly include circuit boards, namely PCB boards, and system software. The cloning of electronic products also mainly includes PCB cop...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/00G06F21/12
Inventor 杨中志
Owner QUECLINK WIRELESS SOLUTIONS
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