Preservation of Multimedia Confidentiality using Elliptic Curve

Abstract

Today data security over the network is a serious concern as the amount of multimedia data is increasing at an exponential rate due to evolution of internet. Video encryption has various fields including internet communication, multimedia systems, medical imaging and military communication. To secure video, the data must be encrypted before transmission. Cryptographic algorithms are used to encrypt the video data and to achieve high confidentiality. In this thesis Elliptic curve cryptography (ECC) method is used to encrypt video with line _cut scrambling techniques to provide the real time encryption. In order to reduce the video size Discrete Cosine Transform (DCT) is used. The proposed method increases video encoding speed and can be used in real time application. The results obtained are analyzed using standard metrics such as PSNR and MSE gives optimum results.