Security Analysis of Authentication Overlaying Tag Signal

This paper presents a new method for authentication based on overlaying tag signal. The tag signal and communication signal are superimposed to form the signal “watermark”. From the point of view of signal transmission, the tag signal can achieve the dual “binding” of shared key and channel. Security analysis and simulation results indicate that it can achieve high authentication success rate and low failure rate. This method does not require complex cryptographic algorithms. So it can achieve security under the premise of reduce the computational amount in the communication process.