Self-synchronizing scrambling and descrambling communication method and device

The invention relates to a self-synchronizing scrambling and descrambling communication method and device. The method comprises: a sending end combining data to be transmitted into a data frame according to the format of a frame header and original data; the sending end performing exclusive-OR scrambling on the data frame by using a linear-feedback polynomial and sending the data frame to a receiving end; the receiving end recovering the synchronous clock based on the received data frame; the receiving end performing exclusive-OR descrambling on the received data frame by using the inverse polynomial of the linear-feedback polynomial; and the receiving end analyzing the original data from the descrambled data frame based on the synchronous clock according to the frame header. According tothe embodiment of the invention, on the premise of ensuring data security and stability, self-synchronizing scrambling and descrambling lightweight transmission is realized. The method is particularlyapplied to a small point-