Audio Networking: The Forgotten Wireless Technology
IEEE Pervasive Computing
Radio-telepathy: extracting a secret key from an unauthenticated wireless channel
Proceedings of the 14th ACM international conference on Mobile computing and networking
Jamming for good: a fresh approach to authentic communication in WSNs
Proceedings of the second ACM conference on Wireless network security
On the effectiveness of secret key extraction from wireless signal strength in real environments
Proceedings of the 15th annual international conference on Mobile computing and networking
They can hear your heartbeats: non-invasive security for implantable medical devices
Proceedings of the ACM SIGCOMM 2011 conference
Practical, real-time, full duplex wireless
MobiCom '11 Proceedings of the 17th annual international conference on Mobile computing and networking
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Near Field Communication (NFC) enables physically proximate devices to communicate over very short ranges in a peer-to-peer manner without incurring complex network configuration overheads. However, adoption of NFC-enabled applications has been stymied by the low levels of penetration of NFC hardware. In this paper, we address the challenge of enabling NFC-like capability on the existing base of mobile phones. To this end, we develop Dhwani, a novel, acoustics-based NFC system that uses the microphone and speakers on mobile phones, thus eliminating the need for any specialized NFC hardware. A key feature of Dhwani is the JamSecure technique, which uses self-jamming coupled with self-interference cancellation at the receiver, to provide an information-theoretically secure communication channel between the devices. Our current implementation of Dhwani achieves data rates of up to 2.4 Kbps, which is sufficient for most existing NFC applications.