scholarly journals A literature Review of Cryptography on RC4 Stream Cipher and Hash-LSB Steganography

In the modern world with the emergence of technology, the entire network includes the digital data that adds new dimensions as to how data can be exchanged effectively and safely in real time from one part of the world to another. Such new opportunities are followed by obstacles such as keeping information confidential and secret or data that is a lively area to explore. It is necessary to transform the information into cryptic form to safely transfer the information from intruders, so that the information is concealed from the intruders. Researchers have always found it fascinating to establish safe techniques that would allow the data to reach from the sender without exposing it to third parties. Therefore several techniques have been developed to transfer data securely and steganography is one of them. In this paper, we review numerous research papers on different techniques of encryption and steganography. This paper contains details about the RC4 encryption algorithm, and how steganography and encryption methods are used. The cryptography and steganography techniques ensure the security of the data.

2001 ◽  
pp. 13-17
Author(s):  
Serhii Viktorovych Svystunov

In the 21st century, the world became a sign of globalization: global conflicts, global disasters, global economy, global Internet, etc. The Polish researcher Casimir Zhigulsky defines globalization as a kind of process, that is, the target set of characteristic changes that develop over time and occur in the modern world. These changes in general are reduced to mutual rapprochement, reduction of distances, the rapid appearance of a large number of different connections, contacts, exchanges, and to increase the dependence of society in almost all spheres of his life from what is happening in other, often very remote regions of the world.


2018 ◽  
pp. 5-29 ◽  
Author(s):  
L. M. Grigoryev ◽  
V. A. Pavlyushina

The phenomenon of economic growth is studied by economists and statisticians in various aspects for a long time. Economic theory is devoted to assessing factors of growth in the tradition of R. Solow, R. Barrow, W. Easterly and others. During the last quarter of the century, however, the institutionalists, namely D. North, D. Wallis, B. Weingast as well as D. Acemoglu and J. Robinson, have shown the complexity of the problem of development on the part of socioeconomic and political institutions. As a result, solving the problem of how economic growth affects inequality between countries has proved extremely difficult. The modern world is very diverse in terms of development level, and the article offers a new approach to the formation of the idea of stylized facts using cluster analysis. The existing statistics allows to estimate on a unified basis the level of GDP production by 174 countries of the world for 1992—2016. The article presents a structured picture of the world: the distribution of countries in seven clusters, different in levels of development. During the period under review, there was a strong per capita GDP growth in PPP in the middle of the distribution, poverty in various countries declined markedly. At the same time, in 1992—2016, the difference increased not only between rich and poor groups of countries, but also between clusters.


2017 ◽  
Vol 7 (1) ◽  
pp. 40
Author(s):  
Elvira Lumi ◽  
Lediona Lumi

"Utterance universalism" as a phrase is unclear, but it is enough to include the term "prophetism". As a metaphysical concept, it refers to a text written with inspiration which confirms visions of a "divine inspiration", "poetic" - "legal", that contains trace, revelation or interpretation of the origin of the creation of the world and life on earth but it warns and prospects their future in the form of a projection, literary paradigm, religious doctrine and law. Prophetic texts reformulate "toll-telling" with messages, ideas, which put forth (lat. "Utters Forth" gr. "Forthteller") hidden facts from fiction and imagination. Prometheus, gr. Prometheus (/ prəmiθprə-mee-mo means "forethought") is a Titan in Greek mythology, best known as the deity in Greek mythology who was the creator of humanity and charity of its largest, who stole fire from the mount Olympus and gave it to the mankind. Prophetic texts derive from a range of artifacts and prophetic elements, as the creative magic or the miracle of literary texts, symbolism, musicality, rhythm, images, poetic rhetoric, valence of meaning of the text, code of poetic diction that refers to either a singer in a trance or a person inspired in delirium, who believes he is sent by his God with a message to tell about events and figures that have existed, or the imaginary ancient and modern world. Text Prophetism is a combination of artifacts and platonic idealism. Key words: text Prophetism, holy text, poetic text, law text, vision, image, figure


2020 ◽  
pp. 35-41
Author(s):  
A. Mustafabeyli

In many political researches there if a conclusion that the world system which was founded after the Second world war is destroyed of chaos. But the world system couldn`t work while the two opposite systems — socialist and capitalist were in hard confrontation. After collapse of the Soviet Union and the European socialist community the nature of intergovernmental relations and behavior of the international community did not change. The power always was and still is the main tool of international communication.


2021 ◽  
Vol 11 (15) ◽  
pp. 6834
Author(s):  
Pradeepa Sampath ◽  
Nithya Shree Sridhar ◽  
Vimal Shanmuganathan ◽  
Yangsun Lee

Tuberculosis (TB) is one of the top causes of death in the world. Though TB is known as the world’s most infectious killer, it can be treated with a combination of TB drugs. Some of these drugs can be active against other infective agents, in addition to TB. We propose a framework called TREASURE (Text mining algoRithm basEd on Affinity analysis and Set intersection to find the action of tUberculosis dRugs against other pathogEns), which particularly focuses on the extraction of various drug–pathogen relationships in eight different TB drugs, namely pyrazinamide, moxifloxacin, ethambutol, isoniazid, rifampicin, linezolid, streptomycin and amikacin. More than 1500 research papers from PubMed are collected for each drug. The data collected for this purpose are first preprocessed, and various relation records are generated for each drug using affinity analysis. These records are then filtered based on the maximum co-occurrence value and set intersection property to obtain the required inferences. The inferences produced by this framework can help the medical researchers in finding cures for other bacterial diseases. Additionally, the analysis presented in this model can be utilized by the medical experts in their disease and drug experiments.


Energies ◽  
2021 ◽  
Vol 14 (9) ◽  
pp. 2691
Author(s):  
Sławomira Hajduk ◽  
Dorota Jelonek

This paper presents the use of multi-criteria decision-making (MCDM) for the evaluation of smart cities. During the development of the method, the importance of the decision-making approach in the linear ordering of cities was presented. The method of using the Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS) was proposed for the preparation of ranking. The method was verified by the application in the measurement of energy performance in smart cities. The authors conducted a literature review of research papers related to urban energy and MCDM published in the period from 2010 to 2020. The paper uses data from the World Council on City Data (WCCD). The research conducted allowed for the identification of the most popular MCDM techniques in the field of urban energy such as TOPSIS, AHP and DEA. The TOPSIS technique was used to organize and group the analyzed cities. Porto took the top position, whereas Buenos Aries was the last.


Sign in / Sign up

Export Citation Format

Share Document