How Reliable is My Wearable: A Fuzz Testing-Based Study
How Reliable is My Wearable: A Fuzz Testing-Based Study
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我的可穿戴设备有多可靠:基于模糊测试的研究
DOI:
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发表时间:
2018
期刊:
影响因子:
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通讯作者:
S. Bagchi
中科院分区:
文献类型:
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作者:
E. Yi;A. Maji;S. Bagchi
As wearable devices like smartwatches and fitness monitors gain in popularity and are being touted for clinical purposes, it becomes important to evaluate the reliability of Android Wear OS and apps on such devices. To date there has been no study done by systematic error injection into the OS or the apps. We address this gap in this work. We develop and open source a fuzz testing tool for Android Wear apps and services, called Qui-Gon Jinn (QGJ). We perform an extensive fault injection study by mutating inter-process communication messages and UI events and direct about 1.5M such mutated events at 46 apps. These apps are divided into two categories: health/fitness and other. The results of our study show some patterns distinct from prior studies of Android. Over the years, input validation has improved and fewer NullPointerExceptions are seen, however, Android Wear apps crash from unhandled IllegalStateExceptions at a higher rate. There are occasional troubling cases of the entire device rebooting due to unprivileged mutated messages. Reassuringly the apps are quite robust to mutations of UI events with only 0.05% of them causing an app crash.