Abstract
The application of multimedia sensors is widespread, and people need to transmit images more securely and efficiently. In this paper, an image transmission scheme based on two chaotic maps is proposed. The proposed scheme consists of two parts, secure image transmission between sensor nodes and sink nodes (SIT-SS) and secure image transmission between sensor nodes and receivers (SIT-SR). For resource-constrained environments, SIT-SS utilizes Tent-Logistic Map (TLM) to generate chaotic sequences and adopts TLM-Driven permutation and transformation to confuse image pixels. Then the cipher image is obtained through TLM-Driven two-dimensional compressed sensing. Compared with existing schemes, the secret key design of SIT-SS is more reasonable and requires fewer hardware resources. When sampling ratio is greater than 0.6, its image reconstruction quality has obvious advantages. For environments with huge security threats, SIT-SR adopts dynamic permutation and confusion based on discrete logarithms to confuse the image and exploits dynamic diffusion based on discrete logarithms to generate final cipher image. Similarly, compared with some existing schemes, the design of SIT-SR is more practical, and the statistical characteristics of the cipher image are better. Finally, extensive simulation tests confirm the superiority of the proposed scheme.
Highlights
Nowadays, the application of multimedia sensors is increasingly widespread in many fields, such as medicine, transportation, industry, education, and military
When a large number of images need to be encrypted, such design is not practical. erefore, while further improving the efficiency and security of image encryption, to overcome the shortcomings of these schemes, an image transmission scheme based on two chaotic maps, 2DCS, dynamic perturbation, and discrete logarithms (ITSCDD) is proposed. e proposed scheme consists of two parts, secure image transmission between sensor nodes and sink nodes (SIT-SS) and secure image transmission between sensor nodes and receivers (SIT-SR)
0.264 1.8939 highest encryption efficiency, whereas for SIT-SR, it adds a certain number of primitive operations to ensure the security, but it still maintains the significant advantage of high encryption efficiency. at is, in terms of encryption efficiency, SIT-SR is significantly better than the remaining four image encryption schemes
Summary
The application of multimedia sensors is increasingly widespread in many fields, such as medicine, transportation, industry, education, and military. Is scheme uses Secure Hash Algorithm (SHA) to generate the secret key and calculate the initial value of the chaotic system It introduces a dynamic Deoxyribonucleic Acid (DNA) encoding method to generate two regular DNA matrices for encoding images. As can be seen from abovementioned works, in terms of designing image encryption schemes, reducing resource consumption and achieving higher security are key motivations These schemes have advantages in some aspects, they all have room for further improvements. Erefore, while further improving the efficiency and security of image encryption, to overcome the shortcomings of these schemes, an image transmission scheme based on two chaotic maps, 2DCS, dynamic perturbation, and discrete logarithms (ITSCDD) is proposed.
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