An Uncompressed AVI Encryption Based On Haar Wavelet Decomposition of Frames and Audio

The privacy and security becomes the major issues since the multimedia is transmitted openly over the network. Along with the privacy and security, storage space is also an important point that can’t be missed. So it is necessary to provide the privacy and security to the multimedia with help of encryption. Encryption is the process of making data unreadable by other humans or computers for the purpose of preventing others from gaining access to its contents. Decryption is the process of taking encoded or encrypted text or other data and converting it back into text that you or the computer are able to read and understand. This term could be used to describe a method of un-encrypting the data manually or with un-encrypting the data using the proper codes or keys. Encryption & Decryption are both methods use to ensure the secure passing of messages, images and video and other sensitive documents & information. This work presents design and implement of an efficient video encryption of uncompressed AVI system, where lossy compression is considered. The AVI (Audio Video Interleaved) file which is uncompressed divided into frames and audio which will be encrypted. Here a new modified International Haar Wavelet is used to encrypt the frames in an efficient secure manner, after encryption of the frame and audio will be decomposes and deliver final decrypted uncompressed video. The implemented image encryption scheme operated in the prediction error domain is shown to be able to provide a reasonably high level of security and efficiency.