能移植在单片机上运行的256bit AES加解密算法-Can be transplanted in the microcontroller running 256bit AES encryption and decryption algorithm

CRC校验源代码，C语言编写。可以方便的移植到用户的程序中，对于某些单片机没有CRC校验的，可以试一试-CRC checksum source code, C language. Can be easily ported to the user' s program, for some microcontrollers without CRC check, you can try