TY - GEN
T1 - ACCessory
T2 - 13th Workshop on Mobile Computing Systems and Applications, HotMobile 2012
AU - Owusu, Emmanuel
AU - Han, Jun
AU - Das, Sauvik
AU - Perrig, Adrian
AU - Zhang, Joy
PY - 2012
Y1 - 2012
N2 - We show that accelerometer readings are a powerful side channel that can be used to extract entire sequences of entered text on a smart-phone touchscreen keyboard. This possibility is a concern for two main reasons. First, unauthorized access to one's keystrokes is a serious invasion of privacy as consumers increasingly use smartphones for sensitive transactions. Second, unlike many other sensors found on smartphones, the accelerometer does not require special privileges to access on current smartphone OSes. We show that accelerometer measurements can be used to extract 6-character passwords in as few as 4.5 trials (median).
AB - We show that accelerometer readings are a powerful side channel that can be used to extract entire sequences of entered text on a smart-phone touchscreen keyboard. This possibility is a concern for two main reasons. First, unauthorized access to one's keystrokes is a serious invasion of privacy as consumers increasingly use smartphones for sensitive transactions. Second, unlike many other sensors found on smartphones, the accelerometer does not require special privileges to access on current smartphone OSes. We show that accelerometer measurements can be used to extract 6-character passwords in as few as 4.5 trials (median).
UR - http://www.scopus.com/inward/record.url?scp=84860294696&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84860294696&partnerID=8YFLogxK
U2 - 10.1145/2162081.2162095
DO - 10.1145/2162081.2162095
M3 - Conference contribution
AN - SCOPUS:84860294696
SN - 9781450300056
T3 - HotMobile 2012 - 13th Workshop on Mobile Computing Systems and Applications
BT - HotMobile 2012 - 13th Workshop on Mobile Computing Systems and Applications
Y2 - 28 February 2012 through 29 February 2012
ER -