Перегляд за Автор "Horniichuk, Ivan"

Зараз показуємо 1 - 4 з 4
  • Ескіз
    ДокументВідкритий доступ
    Analysis of stability of the user's keyboard handwriting characteristics in the biometric authentication systems
    (Institute of Special Communication and Information Protection of National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”, 2018) Yevetskyi, Viktor; Horniichuk, Ivan
    Consideration is given to the use of biometric characteristics in order to increase the efficiency of user authentication. An identifier that uses biometric characteristics is inextricably linked to the user, and it is virtually impossible to use it unauthorized. As a biometric characteristic it is expedient to use a keyboard handwriting. Keyboard handwriting, or rhythm of typing, displays a way of typing on a keyboard that is specific to a particular user. In addition, it is quite simple to implement and does not require additional hardware costs. Moreover, the use of keyboard writing when entering a password eliminates the main disadvantages of classical password systems and systems based on access cards. The focus of the research was on the sustainability of the time characteristics of the keyboard handwriting of a particular user over a long period of time. To implement the admission of the user to the computer system, an algorithm based on the Heming distance is selected. According to the chosen algorithm an algorithm for forming a vector of biometric characteristics of the user is developed, which includes the duration of holding a specific key and the time between pressing the neighboring keys. An algorithm for forming a user's biometric standard is developed. To analyze the use of keyboard handwriting, software applications that implement the user's access based on keyboard handwriting were developed, as well as a program for collecting time characteristics. Both applications use the developed algorithms. To study the constancy of handwriting time characteristics, an empirical study was conducted. For this purpose, a group of individuals is selected, each of which has a computer input at an adequate level. They all entered the proposed phrase within a year. The obtained statistical data, on the basis of which, the average values and values of the average square deviation of the time characteristics of keyboard handwriting at the various time intervals are calculated. Estimated probability of correct user recognition by its frequency in n independent experiments. As a result of the study, the persistence of user keyboard handwriting as a biometric characteristic for use in computer data protection systems, in particular, authentication systems, was analyzed.
  • Ескіз
    ДокументВідкритий доступ
    Applying mobile devices in biometric user authentication systems
    (Institute of Special Communication and Information Protection of National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”, 2019) Horniichuk, Ivan; Yevetskyi, Viktor; Kubrak, Volodymyr
    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
  • Ескіз
    ДокументВідкритий доступ
    Selection of handwritten signature dynamic indicators for user authentication
    (Institute of Special Communication and Information Protection of National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”, 2020) Yevetskyi, Viktor; Horniichuk, Ivan
    Selection and evaluation of handwritten signature indicators in user authentication systems are considered. An important and unresolved issue of information security is the effective identification of the user who accesses confidential information. Traditional password protection has a number of disadvantages. As an alternative to the password system or its addition, user identification by biometric characteristics is considered. An identifier that uses biometric characteristics is inextricably linked to the user and it is almost impossible to use it without authorization. The decision about the truth of the user of biometric authentication systems is made on the basis of comparison of his template with the data entered when trying to authenticate. The template is formed on the basis of studying the selected individual characteristics of the user. To do this, we use the biometric characteristics of users, which reflect the dynamic, behavioral characteristics of the person. It is proposed to use a handwritten signature as a biometric characteristic of the user. A handwritten signature is a socially and legally recognized biometric characteristic used for human authentication. It has a rather complex structure and high detail -all this makes solving the problem of user identification by mathematical methods quite complex and requires high computational costs. Another significant disadvantage is that handwritten authentication systems require the installation of additional specialized equipment, which makes the use of such systems as an ordinary means of authentication very expensive. To solve this problem, a scheme for implementing a computer data protectionsystem against unauthorized access based on handwritten signatures using mobile devices based on the Android operating system as signature input devices is proposed. A method of biometric vector generation for use in dynamic biometric user authentication systems is proposed. The optimal characteristics are investigated and the efficiency of using the proposed form biometric characteristics vector is estimated. Certificates of copyrights registration for software applications developed during the work were received.
  • Ескіз
    ДокументВідкритий доступ
    Використання клавіатурного почерку в системах автентифікації користувача
    (Institute of special communication and information security of National technical university of Ukraine «Kyiv polytechnic institute», 2016) Євецький, Віктор; Горнійчук, Іван; Yevetskyi, Viktor; Horniichuk, Ivan