A Survey on Various Cryptography Techniques for Image Encryption and Decryption

Abstract

In today’s world, the use of digital applications and multimedia is a necessity. And, for the communication of multimedia data, security is also needed. So, to secure multimedia data such as videos and images, the various cryptographic techniques can be used. These cryptographic techniques include encryption and decryption techniques. Hence, over a medium of the channel, while transferring these multimedia data encryption techniques are used that convert the original image into ciphertext which is not readable to the unauthorized user and then communication is done successfully. In past years, many encryption techniques are proposed and discovered for the protection of confidential and important data. In this paper, various encryption techniques have been surveyed and discussed in detail.