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BIBTEX RIS

Identification of Pressed Keys From Mechanical Vibrations

2013; Institute of Electrical and Electronics Engineers; Volume: 8; Issue: 7 Linguagem: Inglês

10.1109/tifs.2013.2266775

ISSN

1556-6021

Autores

Gerson de Souza Faria, Hae Yong Kim,

Tópico(s)

Gait Recognition and Analysis

Resumo

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.

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