A Selective Privacy-Preserving Approach for Multimedia Data

A Selective Privacy-Preserving Approach for Multimedia Data
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多媒体数据的选择性隐私保护方法

DOI:
10.1109/mmul.2017.4031322
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发表时间:
2017-10
期刊:
影响因子:
3.2
通讯作者:
Guo Song
Guo Song
中科院分区:
计算机科学4区
文献类型:
--
作者:
Li Huining;Wang Kun;Liu Xiulong;Sun Yanfei;Guo Song

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随着移动数字设备和无线网络技术的显着改进,我们目睹了多媒体数据的爆炸式增长。由于它是动态的、海量的、异构的,这些数据不仅引发了各种新颖的数据驱动的服务和应用,而且带来了相当大的安全威胁。在本文中,作者重点关注多媒体系统中的隐私泄露问题,并研究如何在给定预定义的时间和资源限制的情况下最大化总隐私权重并升级安全级别。为此,他们提出了一种选择性隐私保护方法,根据每个数据包的隐私权重和执行时间自适应地分配加密资源。也就是说,它为每个多媒体数据包选择具有适当复杂度和安全级别的加密方法。它首先将数据随机分为两部分,然后进行异或运算并在不同的云存储中生成密钥,以防止用户的原始信息受到不可信云运营商的攻击。大量的仿真结果证明了所提出的方法相对于以前的方案的优点和优越性。本文是网络安全特刊的一部分。
With the significant improvements in mobile digital devices and wireless networking technologies, we have witnessed the explosion of multimedia data. Because it is dynamic, vast in volume, and heterogeneous, this data not only evokes various novel data-driven services and applications, but also brings considerable security threats. In this article, the authors focus on privacy leakage issues in multimedia systems and study how to maximize the total privacy weights and upgrade the security level given predefined time and resource constraints. To this end, they propose a selective privacy-preserving method that adaptively allocates encryption resources according to the privacy weight and execution time of each data package. That is, it selects the encryption method with the appropriate complexity and security level for each multimedia data package. It first divides the data randomly into two parts, then performs XOR operations and generates cipher keys in different cloud storages to prevent users’ original information from being attacked by untrusted cloud operators. Extensive simulation results have demonstrated the advantages and superiority of the proposed method over previous schemes. This article is part of a special issue on cybersecurity.
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