Fusion: Practice and Applications FPA 2692-4048 2770-0070 10.54216/FPA https://www.americaspg.com/journals/show/394 2018 2018 Information Technology Bharati Vidyapeeth's College of Engg, New Delhi, India Surinder .. Information Technology Bharati Vidyapeeth's College of Engg, New Delhi, India Shivani Mankotia Information Technology Bharati Vidyapeeth's College of Engg, New Delhi, India Pooja Bharadwaj This paper studies and analyses the encryption and decryption times of a popular variant of the RSA algorithm, the multi-prime RSA. This algorithm uses more than two prime numbers for the encryption process. In this paper, 3, 4, and 5 prime RSA algorithms have been implemented and studied. The rate of increase of encryption and decryption times concerning the number of primes used is also illustrated and compared graphically. 2020 2020 40 48 10.54216/FPA.010105 https://www.americaspg.com/articleinfo/3/show/394