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Method for improving safety data storage of electric product having chip external memory

A technology of data security storage and off-chip memory, applied in the direction of preventing unauthorized use of memory, input/output to record carrier, etc., can solve the problem of low data security of electronic products, achieve fast reading and writing speed, and improve security The effect of high performance and efficiency

Active Publication Date: 2011-04-27
FEITIAN TECHNOLOGIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of low security of electronic product data due to the consistency of storage rules and encryption rules of the off-chip memory connected to the main control chip in the above-mentioned electronic products, the present invention proposes a method to improve the safe storage of electronic product data. The method uses the fully arranged random number table embedded in the firmware program to change the storage rules and encryption rules of the storage area in each product, thereby improving the security performance of electronic products

Method used

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  • Method for improving safety data storage of electric product having chip external memory
  • Method for improving safety data storage of electric product having chip external memory
  • Method for improving safety data storage of electric product having chip external memory

Examples

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Embodiment 1

[0028] see Picture 1-1 , the embodiment of the present invention provides a method for improving the secure storage of data of an electronic product with an off-chip memory, wherein the electronic product includes a main control chip and an off-chip memory, and the method includes the following steps:

[0029] Burn the firmware program embedded in the full permutation random number table in the main control chip;

[0030] Preferably, an intelligent programmer that can automatically generate a full-arrangement random number table and can automatically embed the above-mentioned full-arrangement random number table in the program to be programmed can be used to burn and embed the full-arrangement random number in the main control chip. Table firmware program.

[0031] The intelligent programmer includes: a programming interface and a program storage module, and also includes:

[0032] The setting module is used to set the table header address and table length of the full permu...

Embodiment 2

[0055] see diagram 2-1 , the embodiment of the present invention provides a method for improving the secure storage of data of an electronic product with an off-chip memory, wherein the electronic product includes a main control chip and an off-chip memory, and the method includes the following steps:

[0056] Burn the firmware program embedded in the full permutation random number table in the main control chip;

[0057] Preferably, an intelligent programmer that can automatically generate a full-arrangement random number table and can automatically embed the above-mentioned full-arrangement random number table in the program to be programmed can be used to burn and embed the full-arrangement random number in the main control chip. Table firmware program.

[0058] The intelligent programmer includes: a programming interface and a program storage module, and also includes:

[0059] The setting module is used to set the table header address and table length of the full permu...

Embodiment 3

[0081] see Figure 3-1 , the embodiment of the present invention provides a method for improving the secure storage of data of an electronic product with an off-chip memory, wherein the electronic product includes a main control chip and an off-chip memory, and the method includes the following steps:

[0082] Burn the firmware program embedded in the full permutation random number table in the main control chip;

[0083] Preferably, an intelligent programmer that can automatically generate a full-arrangement random number table and can automatically embed the above-mentioned full-arrangement random number table in the program to be programmed can be used to burn and embed the full-arrangement random number in the main control chip. Table firmware program.

[0084] The intelligent programmer includes: a programming interface and a program storage module, and also includes:

[0085] The setting module is used to set the table header address and table length of the full permut...

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Abstract

A data safe memory method of electronic products with a slice external storage which can improve safe performance and avoid being decoded efficiently is provided. The method is characterized by the following steps: writing and embedding a fixed program of whole arrangement random table in a main control chip of electronic products; carrying out disorder read / write operation and cryptographic textread / write operation for the slice external storage according to the whole arrangement random table embedded in fixed program of the main control chip.

Description

technical field [0001] The invention relates to the field of electronic product safety, in particular to a method for improving the safe storage of electronic product data with an off-chip memory. Background technique [0002] As the application fields of electronic products become more and more extensive, people have more and more demands for storing information in electronic products. implemented in the form of memory. [0003] The so-called firmware program (Firmware) is the program written in EPROM or EEPROM. Unlike ordinary software, it is the program code solidified inside the integrated circuit, responsible for controlling and coordinating the functions of the integrated circuit, and serving as the most basic and bottom layer of a system. Generally, manufacturers or developers of electronic products will develop firmware programs for electronic products by themselves. [0004] However, in the production process of electronic products with off-chip memory, because th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F12/14G06F3/06
Inventor 陆舟于华章
Owner FEITIAN TECHNOLOGIES