There is a need of introducing new encryption techniques to protect the data which is transmitted in a network or which is stored in a cloud as many cryptography algorithms are broken. In this scenario, DNA Cryptography has emerged to provide security to the information in the form of DNA sequences. Various bio molecular techniques used to implement DNA cryptography algorithms. Due to random nature of DNA many cryptographic approaches have become unbreakable. The capability of storing huge information nearly petabytes in few grams of DNA made the researchers introduce more cryptographic algorithms. In the present paper, the authors proposed a novel cryptography algorithm which divides the given message into two parts and performs XOR operation with randomly generated Key. Here, the key also splits into two parts. The XOR is applied on the Left part of Plaintext and Right Part of Key and the Right part of Plaintext with Left part of Key. In this model the authors proposed DNA ASCII table which maps the DNA sequences to numerical data which in turn converts into binary and then turns into DNA bases. These DNA bases are arranged in spiral fashion and it is transmitted through secure media.
