A new cryptosystem based on an enhanced Vigenere cipher incorporating large SBoxesAbdelhakim Chemlal, Hassan Tabti, Hamid El Bourakkadi, Abdellah Abid, Abdellatif Jarjar and Abdelhamid BenazziE3S Web Conf., 601 (2025) 00002DOI: https://doi.org/10.1051/e3sconf/202560100002