An Improved Method of Dna Data Encryption using Xor Based Data Segments

Abstract

Internet is developing each day. One of the most important factors is to provide security for data in internet. In fact that there are numerous number of security algorithm were proposed at the same time hackers are also working with various technique and introduced so many new algorithm to break the security. DNA cryptography is one of the rising regions of computer science. In this paper we proposed a new technique to provide security for data using DNA cryptography. In this we use 256 DNA ASCII table instead of 64 lookup table and key is generated in random manner based on the length of the plaintext*4. In this proposed technique the original plaintext and key was divided into 4 equal parts. The proposed algorithm produces better results when compared to other existing algorithm in terms of encryption and decryption times.