@inproceedings{674a4e7c428a412a8aa66d2d0c0b8a86,
title = "WristUnlock: Secure and Usable Smartphone Unlocking with Wrist Wearables",
abstract = "We propose WristUnlock, a novel technique that uses a wrist wearable to unlock a smartphone in a secure and usable fashion. WristUnlock explores both the physical proximity and secure Bluetooth connection between the smartphone and wrist wearable. There are two modes in WristUnlock with different security and usability features. In the WristRaise mode, the user raises his smartphone in his natural way with the same arm carrying the wrist wearable; the smartphone gets unlocked if the acceleration data on the smartphone and wrist wearable satisfy an anticipated relationship specific to the user himself. In the WristTouch mode, the wrist wearable sends a random number to the smartphone through both the Bluetooth channel and a touch-based physical channel; the smartphone gets unlocked if the numbers received from both channels are equal. We thoroughly analyze the security of WristUnlock and confirm its high efficacy through detailed experiments.",
keywords = "Smartphone authentication, security, usability",
author = "Lili Zhang and Dianqi Han and Ang Li and Tao Li and Yan Zhang and Yanchao Zhang",
note = "Funding Information: ACKNOWLEDGMENT We would like to thank the anonymous reviewers for their insightful comments that help improve the quality of this paper. This work was supported in part by US National Science Foundation under grants CNS-1514381, CNS-1619251, and CNS-1824355. Publisher Copyright: {\textcopyright} 2019 IEEE.; 2019 IEEE Conference on Communications and Network Security, CNS 2019 ; Conference date: 10-06-2019 Through 12-06-2019",
year = "2019",
month = jun,
doi = "10.1109/CNS.2019.8802715",
language = "English (US)",
series = "2019 IEEE Conference on Communications and Network Security, CNS 2019",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "28--36",
booktitle = "2019 IEEE Conference on Communications and Network Security, CNS 2019",
}