Using audio in secure device pairing

Secure pairing of electronic devices is an important issue that must be addressed in many contexts. In the absence of prior security context, the need to involve the user in the pairing process is a prominent challenge. In this paper, we investigate the use of the audio channel for human-assisted device pairing. Fist we assume a common (insecure) wireless channel between devices.We thenobviate the assumptionof apre-existing commonchannelwith a single-channel device pairing approach only based on audio. Both approaches are applicable to a wide range of devices and place light burden on the user.