DocumentCode
1756666
Title
Identification of Pressed Keys From Mechanical Vibrations
Author
de Souza Faria, G. ; Hae Yong Kim
Author_Institution
Dept. de Eng. de Sist. Eletronicos, Univ. de Sao Paulo, São Paulo, Brazil
Volume
8
Issue
7
fYear
2013
fDate
41456
Firstpage
1221
Lastpage
1229
Abstract
This paper describes an attack that identifies the sequence of keystrokes analyzing mechanical vibrations generated by the act of pressing keys. We use accelerometers as vibration sensors. The apparatus necessary for this attack is inexpensive and can be unobtrusively embedded within the target equipment. We tested the proposed attack on an ATM keypad and a PIN-pad. We achieved the key recognition rates of 98.4% in ATM keypad, 76.7% in PIN-pad resting on a hard surface, and 82.1% in PIN-pad hold in hand.
Keywords
interactive devices; security of data; vibrations; ATM keypad; PIN-pad; hard surface; key recognition rates; keystroke sequences; mechanical vibrations; pressed keys identification; Acceleration; Accelerometers; Keyboards; Pressing; Sensors; Vectors; Vibrations; ATM; Accelerometer; PIN-pad; information security; point of sale; side-channel attack; vibration;
fLanguage
English
Journal_Title
Information Forensics and Security, IEEE Transactions on
Publisher
ieee
ISSN
1556-6013
Type
jour
DOI
10.1109/TIFS.2013.2266775
Filename
6525326
Link To Document