打鍵リズムによるバイオメトリクス認証におけるなりすましの評価(一般講演G,生体信号解析)

抄録

In this article, we made evaluation on impersonation of biometric authentication by keystroke rhythm patterns. In the experiment, 4 subjects tried to type their own passphrase rhythmically in 4 times, and type others' keystroke rhythm in 3 times after the practice. These collected rhythm patterns were evaluated with Self-Organizing Maps (SOM). As a result, both FAR (False Accept Rate) and FRR (False Reject Rate) are less than 60%. In addition, registering a complex keystroke rhythm pattern, both FAR and FRR are less than 12%. It is possible to contribute to the improvement of reliability by using authentication with key stroke rhythm based on SOM together with existing authentication methods.