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  1. Proceedings of the second ACM workshop on Security and privacy in smartphones and mobile devices (SPSM '12)
  2. Fingerprint attack against touch-enabled devices
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Fingerprint attack against touch-enabled devices

Content Provider ACM Digital Library
Author Luo, Junzhou Ling, Zhen Fu, Xinwen Xia, Peng Zhang, Yang Liu, Benyuan
Abstract Oily residues left by tapping fingers on a touch screen may breach user privacy. In this paper, we introduce the fingerprint attack against touch-enabled devices. We dust the touch screen surface to reveal fingerprints, and use an iPhone camera to carefully photograph fingerprints while striving to remove the virtual image of the phone from the fingerprint image. We then sharpen the fingerprints in an image via various image processing techniques and design effective algorithms to automatically map fingerprints to a keypad in order to infer tapped passwords. Extensive experiments were conducted on iPad, iPhone and Android phone and the results show that the fingerprint attack is effective and efficient in inferring passwords from fingerprint images. To the best of our knowledge, we are the first using fingerprint powder on touch screen and inferring passwords from fingerprints. Video at http://www.youtube.com/watch?v=vRUbJIcV9vg shows the dusting process on iPhone and video at http://www.youtube.com/watch?v=6jS6KroER3Y shows the dusting process on iPad. After dusting, password characters for login are clearly disclosed.
Starting Page 57
Ending Page 68
Page Count 12
File Format PDF
ISBN 9781450316668
DOI 10.1145/2381934.2381947
Language English
Publisher Association for Computing Machinery (ACM)
Publisher Date 2012-10-19
Publisher Place New York
Access Restriction Subscribed
Subject Keyword Fingerprint Ipad Iphone Attack Android Touch screen
Content Type Text
Resource Type Article
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