This UML (Unified Modeling Language) class diagram delineates the basic structure and operations of the RSA encryption algorithm. The diagram displays the primary class for RSA encryption with attributes including prime numbers p and q for key pair generation, modulus n, public exponent e, and private exponent d. The class also contains methods such as generate a key pair (generate_keypair()), encrypt plaintext (encrypt(plaintext)), and decrypt ciphertext (decrypt(ciphertext)). Furthermore, the template specifies the Plaintext and Ciphertext classes, as well as their relationships with the RSA Encryption class. This class diagram is essential for understanding the RSA encryption mechanism and its implementation in software development, and is particularly useful for students learning about encryption algorithms and engineers developing secure applications.