Dharmendra Kumar, D. V. Chandini, B. Dinesh Reddy, Debnath Bhattacharyya · 5 authors
The Secure Electronic Voting System using Blockchain Technology is ensured to make the current voting process to take place in an honest, accurate and highly secure way. This system stores the details of the voters and votes in two separate blockchains, which provides transparency into election results by allowing voters to independently audit the ballot box while protecting each voter's right to privacy. All the details of the voters get stored into one Blockchain, and this guarantees greater security by providing a PIN confirmed before the vote is taken into consideration. By casting votes as transactions, we can create another blockchain which keeps track of the tallies of the votes. This way, everyone can count the votes themselves, they can verify that no votes were changed or removed, and no illegitimate votes were added and as a result, is made public everyone can agree upon the final count. This system is only taking the current process of voting in an election and bringing that process entirely online, in an attempt to make it highly secure and also more accessible by allowing the voter to vote at his/her location and also reducing the effort put by staff members.
Open access
2 source records
Internet Traffic Analysis and Secure E-voting
Advanced Steganography and Watermarking Techniques
In the course of the research, we identified seven risk groups, analyzed their influence, and formulated possible measures of the risk mitigation. For initial coin offerings projects, we formulated a special risk-assessment scoring system based on a 100-point scale. Investment risks (volatility) were one of the main issues. The only effective option of risk-management here is risk aversion - the refusal of any interaction with the cryptocurrency market. On the other hand, traditional risk management method of diversification has proved its worth and viability on empirical studies of portfolio investments. The portfolio should not be mostly “crypto” but rather it should also consist of traditional assets. It is necessary to consider the opportunity to quit the cryptocurrency market for a short period of time, to prevent the harmful consequences of dramatic price shifts.
Main objective of this study is to develop investment portfolio with diversifications using two different assets. Modern portfolio theory develop investment portfolio to maximize expected return based on a given level of market risk. This study selected cryptocurreny (Bitcoin) and stock price (Petronas Gas Berhad) as the combination in developing investment portfolio. In this analysis, mean return for Bitcoin is 9.890 %. Meanwhile, the mean return for stock price of Petronas Gas Berhad is -0.496 %.The value of correlation is between two assets is -0.372. Result shows the portfolio risk can be reduced with the diversification approach for different assets. Therefore, findings of this study are important for assisting investors to maximize their return for given level of investment risk.
Fiscal decentralization is one the major component of the decentralization implementation of regional autonomy. As the new beginning in regional development and the people in managing the resources or all of the potential to the prosperity and the progress of region. Financial aspect is one of the basic criteria to find out the real capability regional government in managing their autonomy system (household system) the capability of regional government in managing their financial can be seen in APBD which describes the capability of local government in financing the activities of development task and equity in each region. The purpose of this research is to determine the financial capability of Tidore in regional autonomy especially in 2013-2017 judging by ratio of independency, decentralization fiscal degree, growth ratio. This research used observation, interview and documentation to collect the data. The data was analyzed using qualitative and quantitative data with described analysis. The result showed that the independence ratio of Tidore has been able to improve its financial capability. The degree of decentralization is still highly dependent on the central government, although it has been increasing year by year. Growth rate fluctuated this indicates the local government of Tidore is not too concerned with regional development and community welfare.Keywords: regional autonomy, ratio of independency, The degree of decentralization ratio, Growth ratio.
Bu çalışmada, isminden son yıllarda sıkça bahsettiren ve kripto paralardan biri olan Bitcoin fiyatı ile Türkiye ve G7 ülkelerine ait borsa endeksleri arasındaki nedensellik ilişkisi incelenmektedir. Bitcoin fiyatlarındaki dalgalanmanın 2013 yılından itibaren başlaması nedeni ile çalışmada 01.01.2013-26.01.2018 arasındaki günlük veriler kullanılmıştır. Çalışmada öncelikle birim kök testleri ve eşbütünleşme analizi gerçekleştirilmiştir. Değişkenler arasındaki ilişkinin uzun dönemde dengede olup olmadığını analiz edebilmek için vektör hata düzeltme modeli (VECM) kullanılmış, kısa dönemli ilişkiler ise Granger Nedensellik/WALD testi yardımıyla incelenmiştir. Yapılan analizler sonucunda, Bitcoin ile diğer ülke borsaları arasında herhangi bir uzun dönemli denge ilişkisinden söz edilemeyeceği bulunurken, kısa dönemde İngiltere borsasının (FTSE) Bitcoin’in nedeni olduğu sonucuna ulaşılmıştır. Ayrıca, Bitcoin’in de S&P 500 ve Kanada Borsasının (STSX) nedeni olduğu görülmüştür. Sonuç olarak, Bitcoin fiyatının dalgalanması hakkında kısa vadede bu üç borsa endeksinin de fikir verebileceği ortaya çıkmaktadır. Yatırımcılar hem araştırmaya konu olan bu borsalar arasında hem de Bitcoin’e yatırım yaparak risklerini çeşitlendirme yoluna gidebilir.
Shu Yun Lim, Pascal Tankam Fotsing, Abdullah Almasri, Omar Musa · 7 authors
The Internet today lacks an identity protocol for identifying people and organizations. As a result, service providers needed to build and maintain their own databases of user information. This solution is costly to the service providers, inefficient as much of the information is duplicated across different providers, difficult to secure as evidenced by recent large-scale personal data breaches around the world, and cumbersome to the users who need to remember different sets of credentials for different services. Furthermore, personal information could be collected for data mining, profiling and exploitation without users' knowledge or consent. The ideal solution would be self-sovereign identity, a new form of identity management that is owned and controlled entirely by each individual user. This solution would include the individual's consolidated digital identity as well as their set of verified attributes that have been cryptographically signed by various trusted issuers. The individual provides proof of identity and membership by sharing relevant parts of their identity with the service providers. Consent for access may also be revoked hence giving the individual full control over its own data. This survey critically investigates different blockchain based identity management and authentication frameworks. A summary of the state-of-the-art blockchain based identity management and authentication solutions from year 2014 to 2018 is presented. The paper concludes with the open issues, main challenges and directions highlighted for future work in this area. In a nutshell, the discovery of this new mechanism disrupted the existing identity management and authentication solutions and by providing a more promising secure platform.
Blockchain is a peer-to-peer (P2P) technology that records and verifies transactions in a decentralised, cryptography-secure manner. Blockchain applications can globally manage records of any sort, such as import-export declarations, invoices, bills of lading (BLs) and certificates of origin (COs). It is a promising technology for several areas, including international trade. This paper presents blockchain, comments on blockchain platforms such as Ethereum, gives examples of private sector initiatives, shares an idea for a CO blockchain application, and discusses regulatory issues. In doing so, the paper aims to attract attention for blockchain in international trade.
Bitcoin has enjoyed wider adoption than any previous cryptocurrency; yet its success has also attracted the attention of fraudsters who have taken advantage of operational insecurity and transaction irreversibility. We study the risk that investors face from the closure of Bitcoin exchanges, which convert between Bitcoins and hard currency. We examine the track record of 80 Bitcoin exchanges established between 2010 and 2015. We find that nearly half (38) have since closed, with customer account balances sometimes wiped out. Fraudsters are sometimes to blame, but not always. Twenty-five exchanges suffered security breaches, 15 of which subsequently closed. We present logistic regressions using longitudinal data on Bitcoin exchanges aggregated quarterly. We find that experiencing a breach is correlated with a 13 times greater odds that an exchange will close in that same quarter. We find that higher-volume exchanges are less likely to close (each doubling in trade volume corresponds to a 12% decrease in the odds of closure). We also find that exchanges that derive most of their business from trading less popular (fiat) currencies, which are offered by at most one competitor, are less likely to close.
Abstract Providing reliable and surreptitious communications is difficult in the presence of adaptive and resourceful state level censors. In this paper we introduce Tithonus, a framework that builds on the Bitcoin blockchain and network to provide censorship-resistant communication mechanisms. In contrast to previous approaches, we do not rely solely on the slow and expensive blockchain consensus mechanism but instead fully exploit Bitcoin’s peer-to-peer gossip protocol. We develop adaptive, fast and cost effective data communication solutions that camouflage client requests into inconspicuous Bitcoin transactions. We propose solutions to securely request and transfer content, with unobservability and censorship resistance, and free, pay-per-access and subscription based payment options. When compared to state-of-the-art Bitcoin writing solutions, Tithonus reduces the cost of transferring data to censored clients by 2 orders of magnitude and increases the goodput by 3 to 5 orders of magnitude. We show that Tithonus client initiated transactions are hard to detect, while server initiated transactions cannot be censored without creating split world problems to the Bit-coin blockchain.
In this dissertation project, we describe and implement a practical system application based on a selective disclosure credential scheme, namely the Coconut credential scheme\cite{sonnino_coconut:_2018}. The specific application here is an electronic petition system with the distinctive added feature of unlinkability as well as anonymity: such that no information about the anonymous petition voter is linkable back to the individual. In other words, there is no data leaked about who voted in the petition, just that the users who did, were indeed eligible and authorized to vote. As for the implementation, the client-side is done using JavaScript so that the client can trustlessly compute the cryptographic constructions individually, whereas the server-side is done using Node.js, but can easily be replaced by a more sophisticated and secure structure such as a permissionless blockchain platform.
Blockchain has emerged as a trusted and secure distributed ledger for transactions while also being decentralised, distributed and its legitimacy not guaranteed by a trusted authority. Since the appearance of Bitcoin, Blockchain has known many implementations based on P2P architectures. This paper presents how the blockchain and smart contracts technologies can be integrated into the SwarmESB ecosystem. SwarmESB is a framework that helps building distributed applications, which benefit from privacy and scalability features. Our proposal will present the flexibility in building not only microservices based applications, but also decen-tralised applications employing blockchain and smart-contracts by modeling a sample Dapp.
Demianyshyna, О. A., Nedbalyuk, O. P., Stanislavchuk, N. O.
The systemic crisis in the sphere of socio-economic development of territories is a consequence of the lack of a modern management mechanism for the development of territorial communities, which is based on the corresponding development programs.Despite the depth of studying of these scientific studies, the financial aspects of developing programs for the innovative development of territories in the conditions of financial independence of local government bodies require detailed consideration.Focused attention of researchers on the problems of management of territorial development. Attracted attention to the necessity of creating a mechanism for funding work on the development of relevant programs. It is determined that without such mechanism it is impossible to create and effectively implement territorial development programs at all levels of the administrative-territorial system of the country. All elements of the process of territorial development programming that are in need of financing are considered and which should be considered such a separate cost items of the corresponding estimate. On the basis of foreign experience (first of all the USA), it is proposed to create a nation-wide network of state information and consulting (advisory) services that would be the implementers and coordinators of work on the development of territorial development programs. It is determined that the financing of the development of territorial development programs should be carried out precisely through such services, which will ensure the efficiency and transparency of this process in conditions of financial decentralization and creation of united territorial communities in Ukraine. The proposed basic model of the process of programming the innovative development of joint territorial communities will ensure the effectiveness and transparency of this process in the context of financial decentralization.
Siti Aisah Bauw, Lillyani M. Orisu, Melkion D.T. Worabay
Government transfers are one of the central government's interventions in autonomous regions that aim to help regions with low fiscal capacity. With the development of transfers in Manokwari Regency which is always increasing, describing government spending in financing development still depends on the central government or balance funds. The purpose of this study was to etermine the effect of government transfers on the fiscal erformance of Manokwari Regency in the implementation of decentralization. This study is aimed at analyzing he influence of government transfers on the fiscal performance of the Manokwari District government in the implementation of decentralization. With five years of observation. Model estimation is analyzed using simple linear regression (simple linear regression) by partially testing the hypothesis. The results showed that the variable government transfer index had a positive coefficient (+) on the fiscal performance of the regional government, with a R2 value of 86% indicating a ignificant influence on the fiscal performance of the local government.
El objetivo de esta investigación fue saber si realmente las inversiones en el Bitcoin son riesgosas o no, y conocer más acerca de este nuevo mercado de Monedas Virtuales. Esta investigación se llevó acabo de manera documental, analizando la información disponible en el campo para así buscar la principal causa de incertidumbre de este mercado internacional, y conocer así sus principales ventajas y desventajas, con esto identificar si son riesgosas o no, y así poder ayudar a los lectores a tener una mejor y más sencilla idea, sobre este mercado para saber si la inversión resultara o no. Los resultados mostraron que invertir en este momento en Bitcoins no es lo más indicada, pero en un futuro, no muy lejano, este mercado será más estable y seguro para hacer cualquier tipo de inversión y transacción.
Sa sve većom prisutnosti kriptovaluta, pojedinac osjeća potrebu sudjelovanja u trgovanju i korištenju kriptovaluta. S obzirom na visoke troškove i rizike ulaganja, javlja se potreba za edukacijom i treningom korisnika prije sudjelovanja na financijskom tržištu. U sklopu ovog rada, izrađena je mobilna aplikacija Euphoria namijenjena upravo simuliranom trgovanju. Programski kod aplikacije pisan je u programskom jeziku Kotlin, baza podataka u SQL-u, a dizajn u XML-u. Pregled cijena kriptovaluta u stvarnom vremenu postignut je spajanjem na coinmarketcap.com API servis uz pomoć Retrofit biblioteke i HTTP GET metode. Aplikacija omogućuje pregled cijena kriptovaluta i njihovu kupovinu i prodaju, te izradu portfelja korisnika. Baza podataka same aplikacije implementirana je uz pomoć Room biblioteke. Uz implementaciju baze podataka, omogućeno je korištenje i pregled portfelja korisnika.
Марат Рашитович Сафиуллин, Leonid Alekseevich Elshin, A.A. Abdukaeva
Importance The article discusses the process of economic and mathematical modeling of time series describing the volatility of the bitcoin exchange rate through the Autoregressive Moving Average (ARMA) models. Objectives We search for, and substantiate tools and mechanisms used to predict the cryptocurrency market developments. Methods The research applies tools of stochastic analysis of stationary and non-stationary time series.
Application of IoT (Internet of Things) is expanding rapidly as internet connects things in our homes and our personal devices and even our body, provides ease, entertainment and comfort to our daily lives. However, as everything personal is connected, security and privacy becomes a major challenge. Blockchain-based IoT can provide a completely trusted and transparent environment with its tamper-resistant data structure, timestamp, data encryption and distributed consensus. Since cryptocurrency is the first application of blockchains, most blockchain mechanisms like Ethereum provides token-based peer-to-peer payment system that allows payment using a custom currency which enables IoT devices to pay or receive token without a third-party inclusion. In this paper we proposed to apply blockchain mechanism to education/discipline of children at home by through token-based parental control in which parent can encourage good behaviors and discourage bad behaviors of children via tokens transferred via blockchain network. Current parental control is implemented in operating systems of smartphones that only prohibits the abuse of smartphone games or inappropriate web sites. However, this token-based parental control pay tokens to children with good behaviors that allow them to play or watch the proper contents as their rewards. Devices at home like television and computer are connected to the blockchain and accessible only when the user have a sufficient amount of tokens. Children are given incentives in term of token by their parents if they do their homework properly or help their parents. Besides that, smart contract feature in Ethereum allows application to be programmed in a blockchain enables monitoring the activities of children through blockchain. This paper introduces the design of the token-based parental control by using smart contract schemes of Ethereum blockchain with a simple smart home setup as a proof of concept.
This paper is executing a food menu function for customer to search as well as upload food in sequence. Nowadays, mobile devices with wireless technologies have appeared into the humanity industry in particularly restaurants with the development of food ordering system. Most of the restaurants are used in the manual ordering system, which is involving papers and pen. In this method has can be very slow and can occur in error in noting down the users orders. Additionally, large numbers of peoples are needed to use the online ordering system. It is more helpful and reduces the users waiting time. In this work presents the customer has been creating the registration he/she then the password will be generated. The user can create the account and login into the system and show the restaurant food menu details. Select the food item from the menu. Adding the customer data will be updated and delete the food orders from the menu bar. Update the cost of product details and update the additional information like photo, description etc. If the customer no need item remove all items from the current order and to show the payment details as well as type the location from the mobile. Finally, the notification SMS can be received from the mobile and view the place order. The existing supply chain method is not efficient enough to take care of the food safety at every stage. Due to in efficiencies in the food supply chain, food industry faces countless challenges.But the rising distributed ledger technology; block chain can improve the food safety by connecting multiple stakeholders like farmers, processors, retailers, as well as consumers.
Olesia Demianyshyna, Oleksandr Nedbalyuk, N. O. Stanislavchuk
The systemic crisis in the sphere of socio-economic development of territories is a consequence of the lack of a modern management mechanism for the development of territorial communities, which is based on the corresponding development programs.Despite the depth of studying of these scientific studies, the financial aspects of developing programs for the innovative development of territories in the conditions of financial independence of local government bodies require detailed consideration.Focused attention of researchers on the problems of management of territorial development. Attracted attention to the necessity of creating a mechanism for funding work on the development of relevant programs. It is determined that without such mechanism it is impossible to create and effectively implement territorial development programs at all levels of the administrative-territorial system of the country. All elements of the process of territorial development programming that are in need of financing are considered and which should be considered such a separate cost items of the corresponding estimate. On the basis of foreign experience (first of all the USA), it is proposed to create a nation-wide network of state information and consulting (advisory) services that would be the implementers and coordinators of work on the development of territorial development programs. It is determined that the financing of the development of territorial development programs should be carried out precisely through such services, which will ensure the efficiency and transparency of this process in conditions of financial decentralization and creation of united territorial communities in Ukraine. The proposed basic model of the process of programming the innovative development of joint territorial communities will ensure the effectiveness and transparency of this process in the context of financial decentralization.
The article considers the necessity of financial logistic coordination, which involves attracting financial resources in those subsystems of the territories that are most favorable for the rational use of socio-ecological and economic resources, their reproduction, achievement of socio-ecological and economic security and increase in logistics efficiency. It is determined that in order to solve territorial communities’ functioning issues and to ensure their development there is a need to combine local, state and private finances. Effective financial coordination will make it possible to use the resources of the territories efficiently, reduce the use of territories' external resources sub-systems and maximize the provision of their functioning by internal resources. The main resources, revenues and expenditures that provide financial logistics of the territories in Ukraine are estimated. The first results from the implementation of decentralization reform revealed a number of issues: the dependence of Ukraine's local finances on public finances, the social orientation of expenditures etc.. The necessity of completing the process of inter-budgetary relations decentralization and coordination was singled out. The authors identified necessary changes on the state level in order to improve coordination of financial flows and development of the territories. Financial logistics coordination at the local level should solve a number of problems: filling of local budgets with their own financial resources; regulation of prices and tariffs for utilities; increase of communal enterprises and institutions financing; increase of capital expenditures in the spheres of local governments improvement and modernization; investment attraction ; improve the use of local debt securities.
Off-chain scaling techniques allow mutually distrustful parties to execute a contract locally among themselves instead of on the global blockchain. Parties involved in the transaction maintain a multi-signature fraud-proof off-chain replicated state machine, and only resort to on-chain consensus when absolutely necessary (e.g., when two parties disagree on a state). Off-chain scaling is the only way to support fully scale-out decentralized applications ("dApps") with better privacy and no compromise on the trust and decentralization guarantees. It is the inflection point for blockchain mass adoption, and will be the engine behind all scalable dApps. Celer Network is an Internet-scale, trust-free, and privacy-preserving platform where everyone can quickly build, operate, and use highly scalable dApps. It is not a standalone blockchain but a networked system running on top of existing and future blockchains. It provides unprecedented performance and flexibility through innovation in off-chain scaling techniques and incentive-aligned cryptoeconomics. Celer Network embraces a layered architecture with clean abstractions that enable rapid evolution of each individual component, including a generalized state channel and sidechain suite that supports fast and generic off-chain state transitions; a provably optimal value transfer routing mechanism that achieves an order of magnitude higher throughput compared to state-of-the-art solutions; a powerful development framework and runtime for off-chain applications; and a new cryptoeconomic model that provides network effect, stable liquidity, and high availability for the off-chain ecosystem.