基于相位截断和线性正则变换域奇异值分解的非对称光学图像安全加密

IF 1.8 4区 物理与天体物理 Q3 OPTICS
Anshula Sangwan, Hukum Singh
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引用次数: 8

摘要

提出了一种结合相位截断和奇异值分解的非对称光学双图像加密算法。*纯文本用两阶段阶段密钥加密,得到一个均匀分布的密文和两个新的解密密钥。*ese密钥是在加密过程中生成的,与加密密钥不同。实现了非对称加密,提高了系统的安全性。*加密操作中的解密密钥主要与明文有关。同时,系统更能抵抗选择性明文攻击;它还提高了解密密钥的灵敏度。相位截断的应用扩大了密钥空间,提高了密码系统的安全性。*系统的有效性是通过评估输入和检索图像之间的估计误差来计算的。他提出的技术提供了无数的安全密钥,并且对各种潜在的攻击都很健壮。数值仿真验证了该方法的有效性和安全性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A Secure Asymmetric Optical Image Encryption Based on Phase Truncation and Singular Value Decomposition in Linear Canonical Transform Domain
A new asymmetric optical double image encryption algorithm is proposed, which combines phase truncation and singular value decomposition. *e plain text is encrypted with two-stage phase keys to obtain a uniformly distributed cipher text and two new decryption keys. *ese keys are generated during the encryption process and are different from encryption keys. It realizes asymmetric encryption and improves the security of the system. *e unscrambling keys in the encryption operation are mainly related to plain text. At the same time, the system is more resistant to selective plain text attacks; it also improves the sensitivity of decryption keys. With the application of phase truncation, the key space expanded and the security of the cryptographic system is enhanced. *e efficacy of the system is calculated by evaluating the estimated error between the input and retrieved images. *e proposed technique provides innumerable security keys and is robust against various potential attacks. Numerical simulations verify the effectiveness and security of the proposed technique.
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来源期刊
International Journal of Optics
International Journal of Optics Physics and Astronomy-Atomic and Molecular Physics, and Optics
CiteScore
3.40
自引率
5.90%
发文量
28
审稿时长
13 weeks
期刊介绍: International Journal of Optics publishes papers on the nature of light, its properties and behaviours, and its interaction with matter. The journal considers both fundamental and highly applied studies, especially those that promise technological solutions for the next generation of systems and devices. As well as original research, International Journal of Optics also publishes focused review articles that examine the state of the art, identify emerging trends, and suggest future directions for developing fields.
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