How can I encrypt this string “12c00002_34104620_78850018_58221110” into the file 12c00002_34104620_78850018_58221110.dat and decrypt the original string through this file? The file is as follows.[12c00002_34104620_78850018_58221110.dat](link：https://pan.baidu.com/s/1hvEbL_qj_dwN1WAoJr_pMQ?pwd=ifhf
提取码：ifhf)
I hope to know the encryption and decryption methods and the encryption and decryption process
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