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arXiv 1809.08433cs.CR
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云环境下基于内容的多源加密图像隐私保护检索

Content-Based Multi-Source Encrypted Image Retrieval in Clouds with Privacy Preservation

Meng Shen, Guohua Cheng, Liehuang Zhu, Xiaojiang Du, Jiankun Hu

摘要:

基于内容的图像检索(CBIR)是图像检索的基本方法之一。它的应用可以在各个领域找到,如艺术收藏和医疗诊断。随着云计算范例的日益流行,图像所有者希望将其图像外包给云服务器。为了应对图像隐私泄露的风险,图像通常在外包到云端之前进行加密,这使得CBIR成为一项极具挑战性的任务。现有的研究集中在只有一个图像所有者的情况下,留下了多个图像源(即,所有者)未处理。在本文中,我们提出了一个安全的CBIR方案,支持多个图像所有者与隐私保护(MIPP)。我们使用安全的多方计算技术加密图像特征,该技术允许图像所有者使用自己的密钥加密图像特征。这使得能够对从多个源收集的图像进行有效的图像检索,同时保证单个图像所有者的图像隐私不会泄露给其他图像所有者。我们还提出了一种新的方法,可以避免泄露图像的相似性信息的云图像的相似性度量。理论分析和实验结果表明,MIPP实现检索的准确性和效率,同时保护图像的隐私。

英文摘要:

Content-based image retrieval (CBIR) is one of the fundamental image retrieval primitives. Its applications can be found in various areas, such as art collections and medical diagnoses. With an increasing prevalence of cloud computing paradigm, image owners desire to outsource their images to cloud servers. In order to deal with the risk of privacy leakage of images, images are typically encrypted before they are outsourced to the cloud, which makes CBIR an extremely challenging task. Existing studies focus on the scenario with only a single image owner, leaving the problem of CBIR with multiple image sources (i.e., owners) unaddressed. In this paper, we propose a secure CBIR scheme that supports Multiple Image owners with Privacy Protection (MIPP). We encrypt image features with a secure multi-party computation technique, which allows image owners to encrypt image features with their own keys. This enables efficient image retrieval over images gathered from multiple sources, while guaranteeing that image privacy of an individual image owner will not be leaked to other image owners. We also propose a new method for similarity measurement of images that can avoid revealing image similarity information to the cloud. Theoretical analysis and experimental results demonstrate that MIPP achieves retrieval accuracy and efficiency simultaneously, while preserving image privacy.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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