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A new efficient and configurable image encryption structure for secure transmission

机译：一种用于安全传输的新高效和可配置的图像加密结构

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摘要

This paper presents a novel robust symmetric image encryption structure (IES) based on stream ciphers and perceptual hashing for secure image transmission over public networks. The main design objectives of the proposed structure are to utilize, without modifications, any stream ciphers, and perceptual hash functions, easy replaceability of both stream cipher and hashing algorithms, preserve the original perfomiance of the embedded algorithms and to retain all the security of the underlying algorithms. In the proposed structure, a one-time session key is generated from both the image and a pre-shared key between the sender and the recipient of the image. This one-time session key is used by a stream cipher to encrypt the image, which achieves high plaintext sensitivity (diffusion) and high key sensitivity (confusion). To achieve the robustness property of the proposed structure against incidental modifications of the encrypted image, a one-time key encryption key (KEK) is generated from both the perceptual hash of the encrypted image and the pre-shared key. The KEK is used to encrypt the one-time session key which is then embedded into the encrypted image. To demonstrate the efficiency and the robustness of the proposed IES, an image encryption algorithm based on the IES is proposed. Experimental results demonstrate the high security, low complexity and high speed of the proposed IES.
机译：本文介绍了一种基于流密码和感知散列的新型鲁棒对称图像加密结构（IES），用于通过公共网络安全图像传输。所提出的结构的主要设计目标是利用，无需修改，任何流密码和感知哈希函数，流密码和散列算法的易于互换性，保留嵌入算法的原始性能，并保留所有安全性底层算法。在所提出的结构中，从发送者和图像的接收者之间的图像和预共享密钥生成一次性会话密钥。该流密码使用该一次性会话密钥来加密图像，该图像实现高明文灵敏度（扩散）和高密钥灵敏度（混淆）。为了实现所提出的结构的鲁棒性，与加密图像的偶然修改，从加密图像和预共享密钥的感知散列都生成一次性密钥加密密钥（KEK）。 KEK用于加密一次性会话密钥，然后将其嵌入到加密图像中。为了展示所提出的IE的效率和稳健性，提出了一种基于IES的图像加密算法。实验结果表明了拟议IES的高安全性，低复杂性和高速。

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