Optimized Two-Dimensional Chaotic Mapping for Enhanced Image Security Using Sea Lion Algorithm

2021 ◽  
pp. 981-998
Author(s):  
H. R. Latha ◽  
A. Ramaprasath
Keyword(s):  
Two Dimensional ◽  
Sea Lion ◽  
Image Security ◽  
Chaotic Mapping ◽  
Lion Algorithm

scholarly journals Enhanced Image Security using New Sea Lion Optimization Algorithm

2020 ◽  
Vol 9 (7) ◽  
pp. 22-25
Keyword(s):  
Optimization Algorithm ◽  
Electronic Communication ◽  
Digital Data ◽  
Sea Lion ◽  
Image Security ◽  
Encryption And Decryption ◽  
Recent Developments ◽  
Encryption Algorithms ◽  
Lion Optimization Algorithm ◽  
Audio Video

Protection of digital data is the utmost requirement of the day. Everything in the world is being upgraded to electronic communication and which requires protection against data fraud. Data is nowadays not only text but image, audio video individually and sometimes together as multimedia files. Encryption algorithms protect data against attacks and hackers. This paper proposes a new Sealion Optimization algorithm for enhanced image security, analyses several recent developments in encryption and decryption algorithms and summarizes different approaches, their benefits and limitations.

The Research of Two-Dimensional Probability Hyper-Chaotic Mapping Newton Iterative Method to Mechanism Synthesis

2010 ◽  
Vol 20-23 ◽  
pp. 670-675
Author(s):  
You Xin Luo ◽  
Bin Zeng
Keyword(s):  
Iterative Method ◽  
Discrete Systems ◽  
Initial Guess ◽  
Two Dimensional ◽  
Chaotic Mapping ◽  
Newton Iterative Method ◽  
All Solutions ◽  
Sensitive Dependence ◽  
Approximate Synthesis ◽  
First Time

Many questions in natural science and engineering are transformed into nonlinear equations to be found. Newton iterative method is an important technique to one dimensional and multidimensional variables and iterative process exhibits sensitive dependence on initial guess point. The probability characteristic of hyper-chaotic sequences produced by two dimensional hyper-chaotic discrete systems was analyzed. For the first time, a new method to find all solutions based on utilizing　two dimensional probability hyper-chaotic discrete mapping to obtain initial points to find all solutions of the nonlinear questions was proposed. The numerical examples in linkage synthesis and approximate synthesis show that the method is correct and effective.

scholarly journals Block Chain Technology in Supply Chain Management Using Key Generation

2021 ◽  
Vol 12 (1S) ◽  
pp. 252-256
Author(s):  
Priti Lale, Et. al.
Keyword(s):  
Supply Chain ◽  
Key Generation ◽  
Sea Lion ◽  
Chain Management ◽  
Private Key ◽  
Secure Information ◽  
Lion Algorithm ◽  
Additional Costs ◽  
Block Chain ◽  
Traditional Manufacturing

An information system is very important in today's changing world, and therefore choosing the proper system is becoming a very important decision. With the time, the information systems have become more crucial, with multiple problems affecting the supply chain and the continuous writing of performance areas. The principle of chain management aims at chain values. The working of chain management states that chain management enhances the value of the chain by establishing operational units. Traditional manufacturing supply chains bear a lot from additional, costs, delays and information loss due to information middleware’s. Therefore, we propose a blockchain oriented supply chain architecture to reduce intrusion in traditional ones. Current approaches to private-key security include signature schemes based on bio-metrics, index-hidden private key design, and post-quantum block chain schemes. Nevertheless, recovering the lost private key is difficult in all approaches. Here we proposed an optimal key formation procedure using a fitness-based self-adaptive sea lion algorithm for secure information sharing in SCM using block chain.

scholarly journals TDCM: An IP watermarking algorithm based on two dimensional chaotic mapping

2015 ◽  
Vol 12 (2) ◽  
pp. 823-841 ◽  
Author(s):  
Wei Liang ◽  
Keshou Wu ◽  
Yong Xie ◽  
Jiajun Duan
Keyword(s):  
Large Scale ◽  
Rapid Development ◽  
Chaotic Sequence ◽  
Two Dimensional ◽  
Mapping Model ◽  
Chaotic Mapping ◽  
Large Scale Integration ◽  
Scale Integration ◽  
Watermarking Scheme ◽  
Aggregation Level

With the rapid development of VLSI (Very Large Scale Integration) circuit, IP (Intellectual Property) protection for reused technology is widely concerned. A watermarking scheme for IP protection is proposed on basis of a two dimensional chaotic mapping model (TDCM). The scheme utilizes a secure and controllable embedding model to compute the aggregation level of physical resource positions and the secure threshold of controllability. A two dimensional chaotic sequence is generated with the control of secure threshold. The first dimensional sequence is used to determine random watermark positions and the second dimensional sequence is to control watermark number in each position. Finally, the watermarks are inserted into corresponding places orderly. The experiments show that the proposed scheme has low resource overhead by comparing with other schemes. The resistance to attacks and robustness of the watermark are encouraging as well.

scholarly journals A novel Image Security Protection Method Based on DCT Compression Theory and Hyper-chaotic Mapping

2021 ◽  
Vol 2066 (1) ◽  
pp. 012011
Author(s):  
Xianglian Xue ◽  
Haiyan Jin
Keyword(s):  
Low Frequency ◽  
Inverse Transformation ◽  
Image Security ◽  
Chaotic Mapping ◽  
Protection Method ◽  
Inverse Quantization ◽  
Dct Transformation ◽  
Ac Coefficient ◽  
High Frequency Ac ◽  
Dc Coefficient

Abstract This paper studies the current situation of image compression encryption and analyzes the influence of low frequency (DC coefficient) and high frequency (AC coefficient) on image structure in DCT transformation. Based on this, a novel image security protection method based on DCT compression theory and hyper-chaotic mapping is proposed. First, the position of the pixel of the original image is disturbed, and converts the image from spatial domain into frequency domain by the two-dimensional DCT transformation and quantization. Second, change the pixel values by modifying the values of the sign bit of AC coefficient and DC coefficient. At last, the encrypted image is obtained by carrying out inverse quantization, inverse transformation and reverse operation by bit.

Two-Dimensional Hyper-Chaotic Mapping Interval Newton Iterative Method to Mechanism Synthesis

2011 ◽  
Vol 230-232 ◽  
pp. 764-768
Author(s):  
You Xin Luo ◽  
Bin Zeng
Keyword(s):  
Iterative Method ◽  
Discrete Systems ◽  
Initial Guess ◽  
Two Dimensional ◽  
Mechanism Synthesis ◽  
Krawczyk Operator ◽  
Chaotic Mapping ◽  
Newton Iterative Method ◽  
Approximate Synthesis ◽  
Chaos Sequences

Mechanism synthesis questions can be transformed into nonlinear equations to be found. Interval Newton iterative method is an important technique to one dimensional and multidimensional variables and iterative process exhibits sensitive dependence on initial guess point. The characteristic of hyper-chaotic sequences produced by two dimensional hyper-chaotic discrete systems was analyzed. Making use of the advantage of giving rigorous bounds for the exact solution, for the first time, combining hyper-chaos sequences and interval Newton iteration with Krawczyk operator, a new method to find all solutions was proposed. The numerical examples in linkage synthesis and approximate synthesis show that the method is correct and effective.

Spectrophotometric measurements of objective-prism spectra

1966 ◽  
Vol 24 ◽  
pp. 118-119
Author(s):  
Th. Schmidt-Kaler
Keyword(s):  
Progress Report ◽  
Two Dimensional ◽  
Objective Prism ◽  
Made In

I should like to give you a very condensed progress report on some spectrophotometric measurements of objective-prism spectra made in collaboration with H. Leicher at Bonn. The procedure used is almost completely automatic. The measurements are made with the help of a semi-automatic fully digitized registering microphotometer constructed by Hög-Hamburg. The reductions are carried out with the aid of a number of interconnected programmes written for the computer IBM 7090, beginning with the output of the photometer in the form of punched cards and ending with the printing-out of the final two-dimensional classifications.

Introductory paper

1966 ◽  
Vol 24 ◽  
pp. 3-5
Author(s):  
W. W. Morgan
Keyword(s):  
Line Intensity ◽  
Classification Scheme ◽  
Two Dimensional ◽  
Spectral Classification ◽  
Dimensional Array ◽  
Rr Lyrae ◽  
Metallic Line ◽  
Introductory Paper ◽  
Parameter Varying ◽  
Definition Of

1. The definition of “normal” stars in spectral classification changes with time; at the time of the publication of theYerkes Spectral Atlasthe term “normal” was applied to stars whose spectra could be fitted smoothly into a two-dimensional array. Thus, at that time, weak-lined spectra (RR Lyrae and HD 140283) would have been considered peculiar. At the present time we would tend to classify such spectra as “normal”—in a more complicated classification scheme which would have a parameter varying with metallic-line intensity within a specific spectral subdivision.

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