...
首页> 外文期刊>Optik: Zeitschrift fur Licht- und Elektronenoptik: = Journal for Light-and Electronoptic >Encryption of multimedia content in partial encryption scheme of DCT transform coefficients using a lightweight stream algorithm
【24h】

Encryption of multimedia content in partial encryption scheme of DCT transform coefficients using a lightweight stream algorithm

机译:使用轻量级流算法对DCT变换系数的部分加密方案中的多媒体内容进行加密

获取原文
获取原文并翻译 | 示例
   

获取外文期刊封面封底 >>

       

摘要

In recent years, security of multimedia systems such as image and video has become one of the main needs in computer and communication networks. To encrypt multimedia content, lightweight and fast algorithms are usually used in frequency transform domain and in a partial encryption form, having time efficiency, high execution speed and correspondence with compression structures. In this article, a lightweight and fast algorithm is proposed and two designs in partial encryption scheme of DCT transform coefficients are introduced based on three fundamental principles and confrontation the partial encryption attacks (cryptographic attack, replacement attack and statistical model based attack). Moreover, the proposed algorithm is compared with A5/1 and W7 stream ciphers. The results of analyses and simulations by MATLAB software show that the proposed encryption algorithm and two introduced designs are applicable for real-time security applications of multimedia which require high-speed computations and sufficient security levels.
机译:近年来,诸如图像和视频之类的多媒体系统的安全性已经成为计算机和通信网络中的主要需求之一。为了对多媒体内容进行加密,通常在频域中以部分加密形式使用轻量级且快速的算法,具有时间效率,高执行速度以及与压缩结构的对应性。本文提出了一种轻量级的快速算法,并基于三个基本原理介绍了DCT变换系数的部分加密方案的两种设计,并针对部分加密攻击(密码学攻击,替换攻击和基于统计模型的攻击)进行了对抗。此外,将该算法与A5 / 1和W7流密码进行了比较。 MATLAB软件的分析和仿真结果表明,所提出的加密算法和两种引入的设计适用于需要高速计算和足够安全级别的多媒体实时安全应用。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号