International Journal of Engineering and Technology

The need to protect the data disturbances and unauthorized access in communication has led to development of several cryptographic algorithms. Current issue in modern world as popularity of internet, e-commerce and communication technologies has emerging and they became the medium to security threats. Due to advancement in cryptographic techniques the DNA technique is a new crypto algorithm to encrypt and decrypt data. It consists of two stage encryption based on DNA sequence enhances the data security compared to conventional methods. In encryption process the former stage will encrypt the data (plain text) with a random key generated by random DNA sequence generator. Latter and final stage the encrypted data is re-encrypted with DNA translation to generate cipher. The cryptographic techniques (symmetric algorithm) is designed and simulated using Xilinx ISE and targeted on Spartan-3E FPGA interfaced with ZigBee for wireless communication.