NDLI: Making impostor pass rates meaningless: A case of snoop-forge-replay attack on continuous cyber-behavioral verification with keystrokes

Content Provider	IEEE Xplore Digital Library
Author	Rahman, K.A. Balagani, K.S. Phoha, V.V.
Copyright Year	2011
Description	Author affiliation: Louisiana Tech University, Ruston, LA 71272 (Rahman, K.A.; Balagani, K.S.; Phoha, V.V.)
Abstract	Previous efforts in continuous cyber-behavioral verification have considered only zero-effort impostor attacks. Taking continuous verification with keystroke dynamics as a case in point, we demonstrate that forgery attempts created using snooped information (stolen keystroke timing information in our case) have alarmingly high success rates. In our experiments, with as little as 50 to 200 snooped keystrokes (roughly, less than two lines of text typed in a typical email), we were able to create forgeries that had as high as 87.75 percent success rates against verifier configurations that showed less than 11 percent “zero-effort” impostor pass rates. We performed experiments using keystroke data from 50 users who typed approximately 1300 to 2900 keystrokes of free text during three different periods. Our experiments consisted of two parts. In the first part, we conducted zero-effort verification experiments with two verifiers (“R” and “S”) and obtained EERs between 10 and 15 percent under various verifier configurations. In the second part, we replayed 10,000 forged impostor attempts per user and demonstrated how the zero-effort impostor pass rates became meaningless when impostor attempts were created using stolen keystroke timing information.
Starting Page	31
Ending Page	38
File Size	2071514
Page Count	8
File Format	PDF
ISBN	9781457705298
ISSN	21607516
e-ISBN	9781457705304
DOI	10.1109/CVPRW.2011.5981729
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-06-20
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Presses Databases Authentication Feature extraction Forgery Software Timing
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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