A new distance measure for free text keystroke authentication

Author

Davoudi, H. ; Kabir, E.

Author_Institution

Dept. of Electr. Eng., Tarbiat Modares Univ., Tehran, Iran

fYear

2009

fDate

20-21 Oct. 2009

Firstpage

570

Lastpage

575

Abstract

Keystroke dynamics-based authentication, KDA, verifies users via their typing patterns. To authenticate users based on their typing samples, it is required to find out the resemblance of a typing sample and the training samples of a user regardless of the text typed. In this paper, a measure is proposed to find the distance between a typing sample and a set of samples of a user. For each digraph, histogram-based density estimation is used to find the pdf of its duration time. This measure is combined with another measure which is based on the two samples distances. Experimental results show considerable decrease in FAR while FRR remains constant.

Keywords

authorisation; directed graphs; handwritten character recognition; text analysis; digraph; distance measure; free text keystroke authentication; histogram-based density estimation; keystroke dynamics-based authentication; Authentication; Biometrics; Electric variables measurement; Hardware; Keyboards; Law; Legal factors; Speech; Testing; Timing; Biometrics; Free text; Keystroke Dynamics-Based Authentication;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer Conference, 2009. CSICC 2009. 14th International CSI

Conference_Location

Tehran

Print_ISBN

978-1-4244-4261-4

Electronic_ISBN

978-1-4244-4262-1

Type

conf

DOI

10.1109/CSICC.2009.5349640

Filename

5349640