Asymmetric double image encryption, compression and watermarking scheme based on orthogonal-triangular decomposition with column pivoting

IF 0.7 4区物理与天体物理 Q4 OPTICS

Optica Applicata Pub Date : 2022-01-01 DOI:10.37190/oa220210

S. Anjana, Pankaj Rakheja, Akash Yadav, Phool Singh, H. Singh

引用次数: 3

Abstract

A novel asymmetric scheme for double image encryption, compression and watermarking based on QR decomposition in the Fresnel domain has been presented. The QR decomposition provides a permutation matrix as a ciphertext and the product of orthogonal and triangular matrix as a key. The ciphertext obtained through this process is a sparse matrix that is compressed by the CSR method to give compressed encrypted data, which, when combined with a host image, gives a watermarked image. Thus, a cryptosystem that involves compression and watermarking is proposed. The proposed scheme is validated for grayscale images. To check the efficacy of the proposed scheme, histograms, statistical parameters, and key sensitivity are analyzed. The scheme is also tested against various attacks. Numerical simulations are performed to validate the security of the scheme.

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基于柱旋转的正交三角分解的非对称双图像加密、压缩和水印方案

提出了一种新的基于菲涅耳域QR分解的双图像加密、压缩和水印非对称方案。QR分解将置换矩阵作为密文，将正交矩阵与三角矩阵的乘积作为密钥。通过该过程得到的密文是一个稀疏矩阵，通过CSR方法压缩得到压缩后的加密数据，与主机图像结合得到水印图像。因此，提出了一种包含压缩和水印的密码系统。该方法在灰度图像上得到了验证。为了验证所提方案的有效性，分析了直方图、统计参数和键灵敏度。该方案还针对各种攻击进行了测试。通过数值仿真验证了该方案的安全性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Optica Applicata 物理-光学

CiteScore

1.00

自引率

16.70%

发文量

审稿时长

4 months

期刊介绍： Acoustooptics, atmospheric and ocean optics, atomic and molecular optics, coherence and statistical optics, biooptics, colorimetry, diffraction and gratings, ellipsometry and polarimetry, fiber optics and optical communication, Fourier optics, holography, integrated optics, lasers and their applications, light detectors, light and electron beams, light sources, liquid crystals, medical optics, metamaterials, microoptics, nonlinear optics, optical and electron microscopy, optical computing, optical design and fabrication, optical imaging, optical instrumentation, optical materials, optical measurements, optical modulation, optical properties of solids and thin films, optical sensing, optical systems and their elements, optical trapping, optometry, photoelasticity, photonic crystals, photonic crystal fibers, photonic devices, physical optics, quantum optics, slow and fast light, spectroscopy, storage and processing of optical information, ultrafast optics.