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Recently, an image scrambling encryption algorithm of pixel bit based on chaos map was proposed. Considering the algorithm as a typical binary image scrambling/permutation algorithm exerting on plaintext of size $M\times (8N)$, this paper…

密码学与安全 · 计算机科学 2016-09-22 Chengqing Li , Kwok-Tung Lo

The security of learnable image encryption schemes for image classification using deep neural networks against several attacks has been discussed. On the other hand, block scrambling image encryption using the vision transformer has been…

密码学与安全 · 计算机科学 2022-07-19 Tatsuya Chuman , Hitoshi Kiya

Recently, an image encryption algorithm using block-based scrambling and image filtering has been proposed by Hua et al. In this paper, we analyze the security problems of the encryption algorithm in detail and break the encryption by a…

密码学与安全 · 计算机科学 2019-01-01 Feng Yu , Xinhui Gong , Hanpeng Li , Xiaohong Zhao

Traditional permutation schemes mostly focus on random scrambling of pixels, often neglecting the intrinsic image information that could enhance diffusion in image encryption algorithms. This paper introduces PermutEx, a…

Recently, a chaotic image encryption algorithm based on information entropy (IEAIE) was proposed. This paper scrutinizes the security properties of the algorithm and evaluates the validity of the used quantifiable security metrics. When the…

密码学与安全 · 计算机科学 2018-11-27 Chengqing Li , Dongdong Lin , Bingbing Feng , Jinhu Lü , Feng Hao

Recently, a chaos-based image encryption algorithm using alternate structure (IEAS) was proposed. This paper focuses on differential cryptanalysis of the algorithm and finds that some properties of IEAS can support a differential attack to…

密码学与安全 · 计算机科学 2011-12-22 Yu Zhang , Chengqing Li , Kwok-Wo Wong , Shi Shu , Guanrong Chen

In this paper, a new image encryption scheme using a secret key of 144-bits is proposed. In the substitution process of the scheme, image is divided into blocks and subsequently into color components. Each color component is modified by…

密码学与安全 · 计算机科学 2012-04-10 Narendra K Pareek

These days, a tremendous quantity of digital visual data is sent over many networks and stored in many different formats. This visual information is usually very confidential and financially rewarding. Maintaining safe transmission of data…

密码学与安全 · 计算机科学 2025-04-01 Chandra Sekhar Sanaboina

This paper proposes a block-permutation-based encryption (BPBE) scheme for the encryption-then-compression (ETC) system that enhances the color scrambling. A BPBE image can be obtained through four processes, positional scrambling, block…

多媒体 · 计算机科学 2020-11-19 Shoko Imaizumi , Hitoshi Kiya

In year 2000, an efficient hierarchical chaotic image encryption (HCIE) algorithm was proposed, which divides a plain-image of size $M\times N$ with $T$ possible value levels into $K$ blocks of the same size and then operates position…

密码学与安全 · 计算机科学 2016-09-27 Chengqing Li

Image Steganography is a growing research area of information security where secret information is embedded in innocent-looking public communication. This paper proposes a novel crystographic technique for grayscale images in spatial…

多媒体 · 计算机科学 2016-01-08 Khan Muhammad , Jamil Ahmad , Haleem Farman , Zahoor Jan

Recently, an image encryption algorithm based on scrambling and Vegin`ere cipher has been proposed. However, it was soon cryptanalyzed by Zhang et al. using a combination of chosen-plaintext attack and differential attack. This paper…

密码学与安全 · 计算机科学 2014-09-18 Li Zeng , Renren Liu , Leo Yu Zhang , Yuansheng Liu , Kwok-Wo Wong

Medical image encryption could aid in preserving patient privacy. In this article, we provide a chaotic system-based medical picture encryption method. The diffusion and permutation architecture was used. The permutation based on plain…

密码学与安全 · 计算机科学 2024-06-13 Dr Chandra Sekhar Sanaboina , Tejaswini Yadla

Encryption-then-Compression (EtC) systems have been considered for the user-controllable privacy protection of social media like Twitter. The aim of this paper is to evaluate the security of block scrambling-based encryption schemes, which…

密码学与安全 · 计算机科学 2018-12-26 Tatsuya Chuman , Hitoshi Kiya

Securing image data in IoT networks and other insecure information channels is a matter of critical concern. This paper presents a new image encryption scheme using DNA encoding, snake permutation and chaotic substitution techniques that…

密码学与安全 · 计算机科学 2025-03-13 Waleed Ahmed Farooqui , Jawad Ahmad , Nadeem Kureshi , Fawad Ahmed , Aizaz Ahmad Khattak , Muhammad Shahbaz Khan

With an increase in mobile and camera devices' popularity, digital content in the form of images has increased drastically. As personal life is being continuously documented in pictures, the risk of losing it to eavesdroppers is a matter of…

密码学与安全 · 计算机科学 2021-07-28 Prutha Gaherwar , Shraddha Joshi , Raviraj Joshi , Rahul Khengare

Recently, a colour image encryption algorithm based on chaos was proposed by cascading two position permutation operations and one substitution operation, which are all determined by some pseudo-random number sequences generated by…

密码学与安全 · 计算机科学 2012-03-27 Chengqing Li , Yu Zhang , Rong Ou , Kwok-Wo Wong

In this paper, we propose a novel learnable image encryption method for privacy-preserving deep neural networks (DNNs). The proposed method is carried out on the basis of block scrambling used in combination with data augmentation…

密码学与安全 · 计算机科学 2021-06-01 Tatsuya Chuman , Hitoshi Kiya

In recent years, several encryption algorithms have been proposed to protect digital images from cryptographic attacks. These encryption algorithms typically use a relatively small key space and therefore, provide safe, especially if they…

密码学与安全 · 计算机科学 2012-09-24 Ahmed Bashir Abugharsa , Abd Samad Bin Hasan Basari , Hamida Almangush

Recently, an image block encryption algorithm was proposed based on some well-known chaotic maps. The authors claim that the encryption algorithm achieves enough security level and high encryption speed at the same time. In this paper, we…

密码学与安全 · 计算机科学 2020-03-24 Yunling Ma , Chengqing Li , Bo Ou
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