移动系统中安全视频流的低计算方法

M. Saleh, H. Hashim, N. Tahir
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引用次数: 4

摘要

移动系统的巨大革命为视频流的开发开辟了领域,使通过网络播放实时视频,也可以从任何地方看到直播事件,视频数据在传输前必须进行压缩,除此之外,加密过程是强制性的,以确保传输数据流的安全。这会导致资源消耗需求的增加,比如计算开销。因此,本文概述了有限资源设备中视频流的安全性,提出了一种安全视频流的新方法。在提出的方法中,我们将重点关注:视频流的数据结构,解释在视频传输中执行的加密和解密过程,并利用H.264/AVC标准的结构对特定语法进行加密。该方法将分两个阶段进行;(1)对视频流进行编码;(2)对视频比特流进行解码,第一阶段使用AES算法对编码后的视频数据的特定部分进行加密,第二阶段对比特流的加密语法进行解密。应用此方法;提高了在有限资源设备中保护视频流的技术,减轻了实时多媒体传输过程中压缩和加密过程对计算开销的影响。该方法既能防止对视频流数据的攻击,又能保持编码器和解码器之间格式的一致性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A low computational method of secure video streaming in mobile system
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.
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