A New Approach to Securing Speech Signals. - Zahir Ahmida; Rafik Djemili (DeSE, 2017)

A novel approach based on stream cipher for selective speech encryption. - Aïssa Belmeguenaï; Zahir Ahmida; Salim Ouchtati; Rafik Djemili (Int. J. Speech Technol., 2017)

Image encryption using a combination of Grain-128a algorithm and Zaslavsky chaotic map. - Nawel Balaska; Zahir Ahmida; Aïssa Belmeguenaï; Selma Boumerdassi (IET Image Process., 2020)

Improved robust H∞ stability analysis and stabilisation of uncertain and disturbed networked control systems with network-induced delay and packets dropout. - Nourreddine Nafir; Zahir Ahmida; Kevin Guelton; Fayçal Bourahala; Mohamed Rouamel (Int. J. Syst. Sci., 2021)

Securing Medical Data by Combining Encryption and Robust Blind Medical Image Watermarking Based on Zaslavsky Chaotic Map and DCT Coefficients. - Nawel Balaska; Aïssa Belmeguenaï; Ahcène Goutas; Zahir Ahmida; Selma Boumerdassi (SN Comput. Sci., 2022)