Control board encryption and decryption method, terminal equipment and computer-readable storage medium
A control board, encryption ciphertext technology, applied in computer security devices, internal/peripheral computer component protection, computing and other directions, can solve the problems of increasing device cost, increasing product cost, reducing product competitiveness, etc., to ensure uniqueness, The effect of increasing the difficulty of cracking
Active Publication Date: 2021-07-23
SHANGHAI STEP ELECTRIC +1
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Problems solved by technology
[0005] 1) The use of external encryption chips increases the cost of the product. In such a fiercely competitive market for servo products, increasing the cost of devices will definitely reduce the competitiveness of the product;
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[0021] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, various implementation modes of the present invention will be described in detail below in conjunction with the accompanying drawings. However, those of ordinary skill in the art can understand that, in each implementation manner of the present invention, many technical details are provided for readers to better understand the present application. However, even without these technical details and various changes and modifications based on the following implementation modes, the technical solution claimed in this application can also be realized.
[0022] like figure 2 As shown, the control board of the servo driver includes CPU, FPGA, power module and M sequence, and the control board also includes EEPROM (Electrically Erasable Programmable read only memory, electrically erasable programmable read-only memory). Different from the prior art, the pres...
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The embodiment of the present invention relates to the field of encryption, and discloses a control board encryption and decryption method, a terminal device, and a computer-readable storage medium, wherein the method includes: generating the first encrypted ciphertext according to the unique serial number of the CPU and the program curing key, Then encrypt the first ciphertext and FPGA data twice through the FPGA, and the generated encrypted ciphertext includes the effective ciphertext carrying the unique serial number of the CPU and the program curing key and the randomly generated confusing ciphertext; save the encrypted ciphertext In the EEPROM, the effective ciphertext is stored in multiple addresses according to the preset rules, and the confusing ciphertext is randomly stored; when decrypting, the CPU calculates the CPU encrypted ciphertext according to the unique serial number and the program curing key, and the FPGA reads the encrypted ciphertext in the EEPROM. The ciphertext is extracted from the effective ciphertext and decrypted by secondary encryption. If the effective ciphertext extracted and decrypted by the FPGA matches the CPU encrypted ciphertext calculated by the CPU, the decryption is successful. The invention realizes the safe encryption of the embedded program and the FPGA program of the servo drive control board.
Description
technical field [0001] The embodiment of the present invention relates to the technical field of encryption, and in particular to a control board encryption and decryption method for a servo driver, a terminal device, and a computer-readable storage medium. Background technique [0002] Servo drive is an important part of modern motion control and is widely used in automation equipment such as industrial robots and CNC machining centers. It is mainly composed of a drive part, a capacitor part and a module part. The servo driver can use complex control algorithms to control the motor with high precision, thus realizing the intelligent control of the motor. With the rapid development of my country's automation market, servo drives have also entered a period of rapid development. Because servo-related products have the characteristics of high development cost, great difficulty, and long cycle, it is necessary to protect scientific research results. [0003] In the prior art, ...
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IPC IPC(8): G06F21/60G06F21/76
CPCG06F21/602G06F21/76
Inventor 钟前进王科严彩忠丁信忠李虎修
Owner SHANGHAI STEP ELECTRIC