Flash encryption method and device for vehicle-mounted terminal
An encryption method and a vehicle-mounted terminal technology are applied in the field of the vehicle-mounted terminal Flash encryption method and the device thereof, and can solve the problem that the cost cannot be borne by ordinary users.
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[0031] Below in conjunction with accompanying drawing, preferred embodiment of the present invention is described in further detail:
[0032] Such as figure 1 with figure 2 As shown, sending and transferring information between the PC end and the LPC end includes the following steps:
[0033] Step A: In the MCU, generate the ciphertext, compare it with the ciphertext passed from the upper position, if they are the same, the burning is successful;
[0034] Step B: analyze the ISP instruction on the MCU side at the host computer through the serial port, and obtain the serial number of the MCU;
[0035] Step C: pass in the obtained MCU serial number into the MD5 algorithm, and obtain 16-bit MD5 ciphertext after encryption;
[0036] Step D: Utilize the last data block of the MCU to save the corresponding verification information.
[0037] However, the solution of the present invention is not limited to generating ciphertext from the serial number of the MCU, and the ciphertex...
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