The checking algorithm in C language

The core idea of the verification algorithm of data communication: In order to ensure the reliability of the communication data, it is usually added to verify whether a frame of data is wrong, there are many kinds of verification, the XOR check is a common one, you this like 2 floor said, is byte by bit XOR operation, the result is placed in the last byte, The receiver receives the data for the same calculation, and if the last byte is the same as the computed result, the frame data can be considered trustworthy.

The checking algorithm in C language