IoT devices are now enriching peopleâ??s life. However, the security of IoT devices seldom\nattracts manufacturersâ?? attention. There are already some solutions to the problem of connecting a\nsmart device to a userâ??s wireless network based on the 802.11 transmission such as Smart Config\nfrom TI. However, it is insecure in many situations, and it does not have a satisfactory transmission\nspeed, which does not mean that it has a low bit rate. It usually takes a long time for the device to\nrecognize the data it receives and decode them. In this paper, we propose a newWi-Fi connection\nmethod based on audio waves. This method is based on MFSK (Multiple frequency-shift keying)\nand works well in short distance, which enables the correctness and efficiency. In addition, audio\nwaves can hardly be eavesdropped, which provides higher security than other methods. We also put\nforward an encryption solution by using jamming signal, which can greatly improve the security of\nthe transmission.
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