Authentication based on user behavior data mining approach / Seham Ahmed Salem Bamatraf ; Supervised Osman Hegazy , Mohamed Elsharkawy , Mohamed Abdalla Bamatraf

Thesis (Ph.D.) - Cairo University - Faculty of Computers and Information - Department of Information Systems

A keystroke dynamics is a biometric measurement in terms of keystroke press duration and keystroke latencies. Keystroke dynamics application can be built using data mining techniques. The main contributions of this thesis are twofold. The first is to adapt the data mining techniques to achieve high accurate-security without require any special hardware (used Keyboard only). For the purpose to solve similar user problem, we classify users data based on a membership function into fuzzy sets. Next, we employed a sequence alignment algorithm (Needleman-Wunch (NM&W)) as a way of pattern discovery from user typing behavior.The second contribution aims to utilize the ant colony optimization algorithm ACO which is introduced to solve computational problem and provide other alternatives solutions. ACO algorithm in its original construct can{u2019}t handle all types of data. We proposed a model to reconstruct the ACO algorithm to handle the fuzzified keystroke sequences from one side. Additionally, we introduce a customized selection and pheromone update based on the NM&W alignment algorithm.The conducted experiments proved that our proposed system improves the accuracy and precision by more than 30% and 40% respectively compared with traditional classification methods

Issued also as CD