Abstract
With the development of multimedia technology, the secure image retrieval scheme has become a hot research topic. However, how to further improve algorithm performance in the ciphertext needs to be further explored. In this paper, we propose a secure image retrieval scheme based on a deep hash algorithm for index encryption and an improved 4-Dimensional(4-D)hyperchaotic system. The main contributions of this paper are as follows: (1) A novel secure retrieval scheme is proposed to control data transmission. (2) An improved 4-D hyperchaotic system is proposed to preserve privacy. (3) We propose an improved deep pairwise-supervised hashing (DPSH) algorithm and secure kNN to perform index encryption and propose an improved loss function to train the network model. (4) A secure access control scheme is shown, which aims to achieve secure access for users. The experimental results show that the proposed scheme has better retrieval efficiency and better security.
Highlights
Based on the development of big data and the increasing awareness of privacy protection, the construction of a secure index becomes the key technology of ciphertext domain image retrieval [1].On the one hand, users query the information of interest in massive data
(3) We propose an improved deep pairwise-supervised hashing (DPSH) algorithm and secure kNN to perform index encryption and propose an improved loss function to train the network model
The high-dimensional hyperchaotic algorithm has been the scientific frontier in the field of image encryption in recent years, and the high-dimensional hyperchaotic algorithm has not been used in previous image retrieval schemes
Summary
Based on the development of big data and the increasing awareness of privacy protection, the construction of a secure index becomes the key technology of ciphertext domain image retrieval [1]. Many schemes are proposed to protect data privacy. In order to improve the ciphertext domain retrieval performance, approximate search and chaotic encryption algorithms are proposed in the cloud computing scheme [5,6]. In the ciphertext domain retrieval scheme, there are three key technologies (image encryption, index encryption, and data control) that need to be addressed. DNA sequence manipulation [14], scrambling [15], and chaotic mapping [16] are presented The remaining sections of this paper are organized as follows: Section 2 describes related work; Section 3 shows the image privacy protection scheme; Section 4 presents the experimental results and analysis; Section 5 summarizes
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