A low computational method of secure video streaming in mobile system

Abstract

Huge revolution in mobile systems opens the field toward exploit of video streaming, enabling broadcasting a real time video through the network, also live event can be seen from anywhere, the video data has to be compressed before transmitting, in addition to that, the encryption process is compulsory in order to secure a transmitted data stream. This leads to increase the resource consumption requirements such as computational overhead. Hence, in this paper, an overview of video streaming security in limited resources devices is presented, a new method for secure video streaming. In the proposed method, we will focus on: The data structure of video streaming, explaining the encryption and decryption process that performed in a video transmitting, and to exploit the structure of the H.264/AVC standard for encrypting a specific syntaxes. The method will be performed in two phases; (1) encoding video streaming and (2) decode video bitstream, in the first phase, the encryption for a specific part of encoded video data will be performed using AES algorithm, in the second phase, the encrypted syntaxes of the bitstream will be decrypted. By APPLYING this method; the technique for securing the video stream in a limited resource device will be enhanced, mitigate the effects of compression and encryption process on the computational overhead during real-time multimedia transmission. This method is capable to prevent attacks on video streaming data, as well as the compliance format between the encoder and decoder will be maintained.