A new approach for secure data transmission

In the global networked world, there is a phenomenal growth in data transfer and sharing. Security plays a vital role in transmitting the private data over the communication medium which tends to be open and insecure. The threat posed by an intruder in accessing the “not to be disclosed data” has been a genuine apprehension for the communication specialists. In this paper we propose a new approach for security enhancement. Before the encryption process the data to be transferred is rearranged which results in a modified data. The modified data is given as input for the encryption algorithm. For experimental purpose we use RSA algorithm for encryption and decryption.