Control panel encryption and decryption method, terminal equipment and computer readable storage medium
A control board and encrypted ciphertext technology, applied in computer security devices, internal/peripheral computer component protection, calculation, etc., 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: 2019-03-29
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] Such as 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 p...
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The embodiment of that present invention relates to the field of encryption, and discloses a control panel encryption and decryption method, terminal equipment and a computer readable storage medium.The method comprisesthe following steps: generating the first encrypted ciphertext according to the unique serial number of the CPU and the program solidification key, and then performing secondary encryption on the first encrypted ciphertext and the FPGA data through the FPGA, wherein the generated encrypted ciphertext comprises an effective ciphertext carrying the unique serial number of the CPUand the program solidification key and a confused ciphertext generated randomly; The encrypted ciphertext is stored in EEPROM, in which the valid ciphertext is stored at multiple addresses accordingto preset rules, and the confused ciphertext is stored at random. At that time of decryption, the CPU calculates the CPU encrypted ciphertext accord to the unique serial number and the program solidification key, The FPGA reads the encrypted ciphertext in EEPROM, extracts the valid ciphertext and decrypts the secondary encryption. If the valid ciphertext extracted and decrypted by FPGA matches theCPU encrypted ciphertext calculated by CPU, the decryption is successful. The invention realizes the safe encryption of the embedded program of the servo driver control board and the FPGA program.
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