Generalized logistic map and its application in chaos based cryptography

Lawnik, Marcin

doi:10.1088/1742-6596/936/1/012017

Cited by 13 publications

(10 citation statements)

References 6 publications

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“…where n is the iteration times of chaotic sequences and λ is the control parameters of the logistic mapping system. For any x 0 ∈ (0, 1), the Logistic mapping has chaotic characteristics when 3.99 < λ < 4.0 [14,15], it constitutes the pseudorandom chain we need. The double pseudo-random chain has two chaotic sequences which have different x 0 , and it has the following characteristics [16]:…”

Section: Double Pseudo-random Chainmentioning

confidence: 99%

A Novel Image Tamper Detection and Self-Recovery Algorithm Based on Watermarking and Chaotic System

Song

Zhao

et al. 2019

Mathematics

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With the development of image editing software techniques, the content integrity and authenticity of original digital images become more and more important in digital content security. A novel image tampering detection and recovery algorithm based on digital watermarking technology and a chaotic system is proposed, and it can effectively locate the tampering region and achieve the approximate recovery of the original image by using the hidden information. The pseudo-random cyclic chain is realized by the chaotic system to construct the mapping relationship between the image subblocks. It can effectively guarantee the randomness of the positional relationship between the hidden information and the original image block for the better ergodicity of the pseudo-random chain. The recovery value optimization algorithm can represent image information better. In addition to the traditional Level-1 recovery, a weight adaptive algorithm is designed to distinguish the original block from the primary recovery block, allowing 3 × 3 neighbor block recovery to achieve better results. The experimental results show that the hierarchical tamper detection algorithm makes tamper detection have higher precision. When facing collage attacks and large general tampering, it will have higher recovery image quality and better resistance performance.

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Section: Double Pseudo-random Chainmentioning

confidence: 99%

A Novel Image Tamper Detection and Self-Recovery Algorithm Based on Watermarking and Chaotic System

Song

Zhao

et al. 2019

Mathematics

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“…However, as far as cryptography is concerned, both types of these functions are often the weakest points of algorithms referred to in publications. This fact results, among other factors, from: The above mentioned drawbacks have been noticed by some researchers and attempts made at determining other functions that could successfully replace logistic map (3) or skew tent map (4) [3,19]. The presented map (8) is devoid of the above-mentioned disadvantages.…”

Section: Applicationsmentioning

confidence: 99%

The problem of the inverse Lyapunov exponent and its applications

Lawnik

2018

NAMC

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“…Steganography allows to hide data in such a way that their presence cannot be detected by humans [6]. Unlike steganography, cryptography transforms the output in such a way that its content is not hidden [7,8].…”

Section: Introductionmentioning

confidence: 99%

A New Way to Store Simple Text Files

Lawnik¹,

Pełka²,

Kapczyński³

2020

Algorithms

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In the era of ubiquitous digitization, the Internet of Things (IoT), information plays a vital role. All types of data are collected, and some of this data are stored as text files. An important aspect—regardless of the type of data—is related to file storage, especially the amount of disk space that is required. The less space is used on storing data sets, the lower is the cost of this service. Another important aspect of storing data warehouses in the form of files is the cost of data transmission needed for file transfer and its processing. Moreover, the data that are stored should be minimally protected against access and reading by other entities. The aspects mentioned above are particularly important for large data sets like Big Data. Considering the above criteria, i.e., minimizing storage space, data transfer, ensuring minimum security, the main goal of the article was to show the new way of storing text files. This article presents a method that converts data from text files like txt, json, html, py to images (image files) in png format. Taking into account such criteria as the output size of the file, the results obtained for the test files confirm that presented method enables to reduce the need for disk space, as well as to hide data in an image file. The described method can be used for texts saved in extended ASCII and UTF-8 coding.

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Generalized logistic map and its application in chaos based cryptography

Cited by 13 publications

References 6 publications

A Novel Image Tamper Detection and Self-Recovery Algorithm Based on Watermarking and Chaotic System

A Novel Image Tamper Detection and Self-Recovery Algorithm Based on Watermarking and Chaotic System

The problem of the inverse Lyapunov exponent and its applications

A New Way to Store Simple Text Files

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