To ensure the security to the applications of business, the business sectors use Public Key
Cryptographic Systems (PKCS). An RSA system generally belongs to the category of PKCS
for both encryption and authentication. This paper describes an introduction to RSA through
encryption and decryption schemes, mathematical background which includes theorems to
combine modular equations and correctness of RSA. In short, this paper explains some of
the maths concepts that RSA is based on, and then provides a complete proof that RSA …