Cryptography incorporates application and scientific examination of methodologies aimed at facilitating secure communication in the face of potentially threatening behavior. In a broader sense, cryptography refers to the development and examination of protocols with the goal of safeguarding private communications from unauthorized access by third parties. Modern cryptography is situated within a diverse range of academic disciplines, encompassing mathematics, computer science, information security, electrical engineering, digital signal processing, physics, and other related topics. In this paper, we use the RSA algorithm along with the Moore-Penrose inverse of a matrix to establish an encryption method for the secure delivery of confidential messages.