What is the principle of dongle? How to realize the communication of network?
The principle of dongle: dongle realizes encryption by exchanging data with dongle during software execution. The built-in MCU circuit (also known as CPU) of the dongle makes the dongle have the processing ability of judgment and analysis, and enhance the active anti decryption ability. This encryption product is called "smart" dongle. There is a special algorithm software in the microcontroller built in the encryption dog. After the software is written into the microcontroller, it can't be read out. This ensures that the dongle hardware cannot be copied. At the same time, the encryption algorithm is unpredictable and irreversible.
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