Survey of Various Image Encryption Methods and Evaluation Matrices
In present years, there has been momentous progress in multimedia technologies. Transmission of multimedia data such as audio, video and pictures above the Internet is now-a-days extremely common. Though internet is extremely insecure channel and this poses a number of protection issues. To accomplish confidentiality and protection of multimedia data above an insecure channel like the Internet, a number of encryption schemes have been proposed. The existence of multimedia technology in this era has promoted digital images to play a more important role than the traditional texts, which demand serious protection of users’ privacy for all applications.