Cryptography

2008 ◽  
pp. 3442-3450
Author(s):  
Leslie Leong ◽  
Andrzej T. Jarmoszko

The emphasis and increased awareness of information security require an understanding and knowledge of the technology that supports it. As the risks and complexity of security keep growing along with the development of the Internet and e-commerce, securing information has become of utmost importance. With the worries about cyber-terrorism, hackers, and white-collar crimes, the demand for a stronger security mechanism in cryptography becomes apparent. Although wireless cryptography is still in its infancy, there are encryption technologies that may support the limitations of a mobile device.

Author(s):  
Leslie Leong ◽  
Andrzej T. Jarmoszko

The emphasis and increased awareness of information security require an understanding and knowledge of the technology that supports it. As the risks and complexity of security keep growing along with the development of the Internet and e-commerce, securing information has become of utmost importance. With the worries about cyber-terrorism, hackers, and white-collar crimes, the demand for a stronger security mechanism in cryptography becomes apparent. Although wireless cryptography is still in its infancy, there are encryption technologies that may support the limitations of a mobile device.


2021 ◽  
pp. 1-13
Author(s):  
Fernando Rebollar ◽  
Rocío Aldeco-Perez ◽  
Marco A. Ramos

The general population increasingly uses digital services, meaning services which are delivered over the internet or an electronic network, and events such as pandemics have accelerated the need of using new digital services. Governments have also increased their number of digital services, however, these digital services still lack of sufficient information security, particularly integrity. Blockchain uses cryptographic techniques that allow decentralization and increase the integrity of the information it handles, but it still has disadvantages in terms of efficiency, making it incapable of implementing some digital services where a high rate of transactions are required. In order to increase its efficient, a multi-layer proposal based on blockchain is presented. It has four layers, where each layer specializes in a different type of information and uses properties of public blockchain and private blockchain. An statistical analysis is performed and the proposal is modeled showing that it maintains and even increases the integrity of the information while preserving the efficiency of transactions. Besides, the proposal can be flexible and adapt to different types of digital services. It also considers that voluntary nodes participate in the decentralization of information making it more secure, verifiable, transparent and reliable.


2016 ◽  
Vol 11 (6) ◽  
pp. 32 ◽  
Author(s):  
Shwu-Ing Wu ◽  
Rou Jyun Chen

<p class="ArticleTitle">In recent years, the increasingly innovative and diverse mobile devices have significantly promoted the mobile device-based shopping. What factors influence this kind of shopping? Will consumers purchase things with mobile devices? These are two topics that need to be explored. Through the literature analysis and the empirical research, this study aims to analyze the quality of information, system, service and mobile devices on the mobile device-based shopping platform. Moreover, it studies the attitude of consumers towards mobile device-based shopping, their willingness to adopt the shopping method and the behavioral relationship model in the actual mobile device-based shopping as well as compares the groups of different frequencies of the Internet use in terms of the relationship model.</p>  With the convenient sampling, this study made an investigation among some of those who had experienced shopping on such mobile devices as tablets or smart phones. The 765 retrieved valid copies of questionnaire were divided into three groups—“often”, “average” and “seldom” according to the frequency consumers undertook mobile device-based shopping and were then compared. The results showed that there were significant differences among the three groups in four relationship paths, including: 1) the information quality of the mobile device-based shopping platform has more significant positive influence on consumers’ attitude path of mobile device-based shopping in the “average” group than in the other two; 2) the service quality of the mobile device-based shopping platform has more significant positive influence on consumers’ attitude path of mobile device-based shopping in the “seldom” group than in the other two; 3) the preference for mobile device-based shopping has much significant positive influence on the behavior path of mobile device-based shopping in the “often” group. According to the research results, different groups have different behavior models. These results can serve as reference information in the decision-making of those who establish mobile device-based shopping platforms and manufacture mobile devices.


2020 ◽  
Vol 1 (6(75)) ◽  
pp. 26-36
Author(s):  
V.V. Bondarchuk

The article describes the Firewall settings rules for ensuring information security when transmitting data over the Internet of a multiservice supercomputer network. The relevance of three-level architecture is grounded. The logic of information flows, firewall settings is described, Certificate Services.


Author(s):  
Sergey Volodenkov

Introduction. The author aims to analyze the phenomenon of information interference with national political processes in the conditions of the contemporary information society and the evolution of the Internet as a space of political communications. The article shows that the digital information intervention is relevant and at the same time, a complex multidimensional phenomenon of contemporary politics. In many respects, the potential of the digital interference phenomenon is closely related to the essential features of functioning and the transformation of the contemporary Internet, which has been actively used when changing political regimes in many countries. The problem of information security and sovereignty of the present state on the Internet is becoming one of the most urgent in the conditions of the rapid development of information and communication technologies. Methods and materials. The issues identified in the article are investigated using the methods of comparative, structural-functional and normative analysis, included observation, as well as the case-study method. The method of scientific forecasting and scripting techniques has allowed to form a scenario for the effective settlement of international conflicts in the field of information security. The empirical base of the study is reports of foreign experts, official materials of state authorities of the Russian Federation and foreign countries, reports of Freedom House international organization, official speeches and statements by the heads of state on the issues outlined in the work. Analysis. Countering external information expansion is becoming one of the most critical tasks of effective political governance at the state level to preserve the sovereignty of the national political communication space, including domestic segments of the Internet. The initiatives of states to form the sovereign national segments of the Internet space are, on the one hand, an attempt to protect their political systems from external influence and invasion, to ensure their own political stability, and on the other hand, they create risks for the democratic potential of the Internet. The article substantiates the thesis that the phenomenon of interference in elections in actual practice often becomes not so much an objective process as an instrument of information warfare, mass political propaganda and discrediting political opponents, a manipulative tool that can be actively used not only by authoritarian regimes with a low level of democratic development. Results. The study shows that differences in understanding and defining the essence of the Internet by various countries give rise to a significant potential for political conflicts on a global scale. This circumstance leads the author to the conclusion that it is necessary to form international institutions capable of preventing and regulating information conflicts in the Internet space, as well as reducing global political risks (including risks associated with potential interference in the electoral process of sovereign states). The implementation of this scenario will allow forming a collective responsibility in the functioning of the global Internet.


Crowdsourcing ◽  
2019 ◽  
pp. 838-863
Author(s):  
Maria Antonia Brovelli ◽  
Blagoj Delipetrev ◽  
Giorgio Zamboni

The availability of new mobile devices (tablets and smartphones) equipped with many sensors is changing or, better, enriching the way we monitor and sense the world that surrounds us. The internet has permeated completely not only our scientific and technological development, but also our life. Only some years ago, we used geospatial data and GIS software installed within our computers. Nowadays, data and operators are provided via the net by means of distributed and shared geo-services and a simple and powerless mobile device is enough to connect them. The possibility of interaction has become not only faster and more user friendly but also active, being individuals and communities free of adding, deleting, and changing contents in real time in the new GeoWeb2.0. This chapter explores GeoWeb2.0.


2021 ◽  
Author(s):  
Jennifer Donath

The purpose of this project was to explore how young adults are experiencing relationships when using social media. Using a qualitative design young adults between the ages of 16-25 were asked questions about their experience with social media in the city of Toronto. Qualitative interviews were conducted with three homeless participants who used social media and had access to the internet and a mobile device. The researcher analyzed the data by looking for themes within the participant’s answers. Discussion focuses on the impact of social media, their experiences as a homeless youth and the interaction with social media on a daily basis. The findings also suggest future research for technology amongst homeless youth


Author(s):  
Acheme Odeh

The internet technologies have made it even easier for terrorist activities to migrate smoothly to the internet. Nations are now benefiting from the act of cyberterrorism, making it more difficult to successfully fight this monster. This chapter aims to draw up a review on various published work addressing the financial benefits of cyberterrorism. The question is to know if economic benefits alone is significantly strong enough to encourage more cyberterrorism activities. Should this be the case, what can be done to curb this deadly cancer from spreading further? Scientific methods could prove to be a much efficient solution to the issue of cyber terrorism. But how is that going to happen and for how long should we wait to see this happen? Would it ever happen? Considering that the internet is an ever-growing technology with endless possibilities for both attackers and crime investigative specialist, do we forsee a cyber war between nations who can boost of better fighting and defending technologies? These questions and many more are discussed based on recent literature.


Author(s):  
Aditya Raj ◽  
Tushar Pahwa ◽  
Ashish Jain

CAPTCHAs are employed on websites to differentiate between human users and bot programs that indulge in spamming and other fraudulent activities. With the advent and advancement of sophisticated computer programs to break CAPTCHAs, it has become imperative to continuously evolve the CAPTCHA schemes in order to keep the Internet network and website free of congestion and spam-bots. In light of these developments concerning information security, in this chapter, the authors introduce the novel concept of Scrambled CAPTCHA, which is a combination of OCR-based and Picture CAPTCHAs and exploits an inherent characteristic of human vision and perception. They also introduce Hindi CAPTCHA, developed in Hindi language (Devanagari script). This CAPTCHA will typically address spamming on Indian websites. It also contributes to the digitalization of books written in this script. The authors also discuss the features and security aspects of these schemes in detail, which, to the best their knowledge, had not been implemented earlier.


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