ZAKARIA EL ALLALI received the B.Sc. degreein operational research and statistics and the Ph.D.degree in applied mathematics from MohammedPremier University, Oujda, Morocco, in 1995 and 2000, respectively. Since 2007, he has been a Researcher and a Professor with the Multidisciplinary Faculty of Nador, Mohammed First University. His research interests include mathematical modeling and its applications in engineering and quantum sciences, cybersecurity, and artificial intelligence. (PDF) BlockMEDC: Blockchain Smart Contracts System for Securing Moroccan Higher Education Digital Certificates. Available from: https://www.researchgate.net/publication/389372621_BlockMEDC_Blockchain_Smart_Contracts_System_for_Securing_Moroccan_Higher_Education_Digital_Certificates [accessed Feb 12 2026].