Parallel Implementation of DNA Cryptography Encryption Scheme using MPI and CUDA

There is a great requirement for cryptographic systems to secure shared or transmitted data over the internet. Periodic modification of the currently used cryptographic scheme to encrypt the data is also suggested to keep data transmission more secure. Along with the complexity of cracking the cryptosystem, it is expected that the overall encryption or decryption process should be less time-consuming to use in real time for data transmission over the internet. In this paper, we propose a DNA (Deoxy-Ribose-Nucleic-Acid) Cryptography and Substitution method-based encryption scheme to secure the text data which takes O(n) time to complete the encryption process of text data containing n characters and it is implemented using MPI (Message Passing Interface) and CUDA (Compute Unified Device Architecture) programming. The computation time of the sequential C program, MPI program, and CUDA program were analyzed on different data.