Vol. 4, Issue 6, Part C (2018)

In the past decade, image encryption is given much attention in research of information security and a lot of image encryption algorithms have been introduced. Due to some intrinsic features of images like bulk data capacity and high data redundancy, the encryption of image is different from that of text; therefore it is difficult to handle them by traditional encryption methods.

In today’s era it is a crucial concern that proper encryption decryption should be applied to transmit the data from one place to another place across the internet in order to prevent unauthorized access. Image Cryptography is a special kind of encryption techniques to hide data in an image for encryption and decryption of original message based on some key value. Very few algorithms, provides computational hardness and it makes difficult to break a key to find the original message. Here RSA algorithm is used to encrypt the image files to enhance the security in the communication area for data transmission. An image file is selected to perform encryption and decryption using key generation technique to transfer the data from one destination to another.