Applying mobile devices in biometric user authentication systems
The use of biometric characteristics to improve the efficiency of user authentication is considered. An identifier that uses biometric characteristics is inextricably linked to the user and is virtually impossible to use it unauthorized. According to this, it is proposed to use the dynamic biometric characteristics of users. Their advantage is that due to the dynamic component, the likelihood of their being forged by an attacker is very low. As a part of multifactor authentication system, biometrics can significantly reduce the chances of hacking user accounts by eliminating the disadvantages of classic password systems and card-based systems. The handwritten signature is used as the biometric characteristic of the user. The handwritten signature is a publicly and legally recognized biometric characteristic used for human authentication. It has a rather complex structure and high detail, all of which makes the solution of this problem mathematical methods rather complicated and requires a large computational cost. A major drawback is that handwritten signature authentication systems require the installation of additional specialized hardware. Therefore, using such systems as an ordinary authentication tool is very expensive. Nowadays the presence of mobile devices in almost all users has made it possible to form the idea of using them in authentication systems. Thanks to that a scheme for implementing a computer security system against unauthorized access based on handwritten signatures using Android-based mobile devices as signature input devices were proposed. In addition, a connection scheme between a computer and a mobile device was proposed. Its feature is that the connection between the mobile device and the computer is established by scanning the QR code displayed on the computer monitor by mobile device module. The practical value of the results obtained is confirmed by the copyright registration certificate of the software developed during the work
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