Journal of Cybersecurity and Information Management JCIM 2690-6775 2769-7851 10.54216/JCIM https://www.americaspg.com/journals/show/1925 2019 2019 Tishreen University, Department of Mathematics, Latakia, Syria Hasan Sankari Tishreen University, Department of Mathematics, Latakia, Syria Mohammad Abobala The objective of this paper is to present a novel application of 2-cyclic refined integers to build a novel crypto scheme for the encryption and decryption of data and information based on the algebraic properties of 2-cyclic refined integers combined with RSA algorithm, where an improved version of RSA crypto-scheme will be established and applied to the security of information and data. On the other hand, we illustrate some examples and figures to show the validity and complexity of the algorithm. 2023 2023 67 73 10.54216/JCIM.120106 https://www.americaspg.com/articleinfo/2/show/1925