Input extraction via motion-sensor behavior analysis on smartphones
Input extraction via motion-sensor behavior analysis on smartphones
复制标题
通过智能手机上的运动传感器行为分析进行输入提取
DOI:
10.1016/j.cose.2015.06.013
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发表时间:
2015-09
影响因子:
5.6
通讯作者:
Guan Xiaohong
中科院分区:
文献类型:
--
作者:
Shen Chao;Pei Shichao;Yang Zhenyu;Guan Xiaohong
Smartphone onboard sensors, such as the accelerometer and gyroscope, have greatly facilitated people’s life, but these sensors may bring potential security and privacy risk. This paper presents an empirical study of analyzing the characteristics of accelerometer and magnetometer data to infer users’ input on Android smartphones. The rationale behind is that the touch input actions in different positions would cause different levels of posture and motion change of the smartphone. In this work, an Android application was run as a background process to monitor data of motion sensors. Accelerometer data were analyzed to detect the occurrence of input actions on touchscreen. Then the magnetometer data were fused with accelerometer data for inferring the positions of user inputs on touchscreen. Through the mapping relationship from input positions and common layouts of keyboard or number pad, one can easily obtain the inputs. Analyses were conducted using data from three types of smartphones and across various operational scenarios. The results indicated that users’ inputs can be accurately inferred from the sensor data, with the accuracies of 100% for input-action detection and 80% for input inference in some cases. Additional experiments on the effect of smartphone screen size, sampling rate, and training data size were provided to further examine the reliability and practicability of our approach. These findings suggest that readings from accelerometer and magnetometer data could be a powerful side channel for inferring user inputs.
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影响因子:
2.5
作者:
R. Deveaux
通讯作者:
R. Deveaux
DOI:
10.1016/j.cose.2014.02.007
发表时间:
2014-06
期刊:
Comput. Secur.
影响因子:
--
作者:
Zheran Fang;Weili Han;Yingjiu Li
通讯作者:
Zheran Fang;Weili Han;Yingjiu Li
影响因子:
3.9
作者:
S. Ross
通讯作者:
S. Ross
DOI:
10.1145/2046707.2046769
发表时间:
2011-10
期刊:
--
影响因子:
--
作者:
R. Raguram;A. M. White;D. Goswami;F. Monrose;Jan-Michael Frahm
通讯作者:
R. Raguram;A. M. White;D. Goswami;F. Monrose;Jan-Michael Frahm
DOI:
10.1145/2516760.2516770
发表时间:
2013-11
期刊:
--
影响因子:
--
作者:
Laurent Simon;Ross J. Anderson
通讯作者:
Laurent Simon;Ross J. Anderson