Needless to say, computer systems should be more secure for our safe life and society nowadays. A keystroke dynamics-based user authentication is known as one of potentially valid biometrics. In our previous research, input text requiring about two hu...
Needless to say, computer systems should be more secure for our safe life and society nowadays. A keystroke dynamics-based user authentication is known as one of potentially valid biometrics. In our previous research, input text requiring about two hundred keystrokes provides less than 1% EER, Equal Error Rate, for fifty-one subjects. To improve data input situation, this paper deals with one third shorter texts. Those texts are Japanese old poems composed of 5-7-5-7-7 syllabaries. We have asked thirty-five subjects to type these poems requiring about sixty keystrokes each three times. By user authentication experiments, we have achieved around EER 4 to 7%.