Document Type : Research Paper

Authors

• salim ziani ¹
• Tarek Ahmed_ali ²
• Tennache Nadji ³
• Abdennour Benlahreche ⁴

¹ department of Electronic, Faculty of the Sciences of the technology, University of Constantine 1, Algeria

² ENSICAEN NORMANIDE UNIVERSITE Caen, France

³ department of Electronic, Faculty of sciences of the technology, University of Constantine 1

⁴ Departement of Electronic, faculty of sciences of the tehcnology, University of Constantine 1, Algeria

Abstract

Security and condentiality of our information such as access codes bank or postal accounts are becoming more and more important to protect against espionage by foreigners. There are several researches to improve the security of the user's personal information when entering the password, or saving, ... etc. The objective of this paper is to create a novel virtual keyboard display system based on a random display algorithm, in order to have a keyboard with random combinations
of the virtual display matrix. This work focuses on the introduction of fuzzy systems mixed with the random number generation. Fuzzy systems use the values of the pressure forces exerted by the user or the operator on the virtual keyboard touchscreen as inputs to the fuzzy systems. The fuzzy system is designed by using the time-varying fuzzy sets. We use the "modulo operator" algorithm to generate a random integer. For the realization, we use a microcontroller (ESP8266 node MCU.V3 microcontroller) and the touchscreen (ili9341) to display a 4X4 numeric matrix to enter a standard four-digit code.

Keywords

• Fuzzy systems
• Random algorithms
• PIN Code
• Keyboard systems
• time-varying fuzzy sets

Main Subjects

• Industrial Engineering