A systematic literature review of blockchain-based applications: Current status, classification and open issues

Casino, Fran; Dasaklis, Thomas K.; Patsakis, Constantinos

doi:10.1016/j.tele.2018.11.006

Cited by 1,624 publications

(1,075 citation statements)

References 193 publications

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“…We find publications that are motivated by the upward trend of Blockchain's use, advocate the use of it in education [19]. However, there are studies based on the very foundations of Blockchain that question it as a private and secure technology [20][21][22][23][24]. All of them repeat a series of security flaws that can be included in different categories: Identity filtering, Lack of transactional privacy, Private Key insecurity, Vulnerabilities in Smart Contracts, Discovery of user identities and Quantum computing.…”

Section: Methodsologymentioning

confidence: 98%

Personal Data Broker Instead of Blockchain for Students’ Data Privacy Assurance

Fonseca

Alier

García-Peñalvo

et al. 2019

Advances in Intelligent Systems and Computing

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Data logs about learning activities are being recorded at a growing pace due to the adoption and evolution of educational technologies (Edtech). Data analytics has entered the field of education under the name of learning analytics. Data analytics can provide insights that can be used to enhance learning activities for educational stakeholders, as well as helping online learning applications providers to enhance their services. However, despite the goodwill in the use of Edtech, some service providers use it as a means to collect private data about the students for their own interests and benefits. This is showcased in recent cases seen in media of bad use of students' personal information. This growth in cases is due to the recent tightening in data privacy regulations, especially in the EU. The students or their parents should be the owners of the information about them and their learning activities online. Thus they should have the right tools to control how their information is accessed and for what purposes. Currently, there is no technological solution to prevent leaks or the misuse of data about the students or their activity. It seems appropriate to try to solve it from an automation technology perspective. In this paper, we consider the use of Blockchain technologies as a possible basis for a solution to this problem. Our analysis indicates that the Blockchain is not a suitable solution. Finally, we propose a cloud-based solution with a central personal point of management that we have called Personal Data Broker.

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Section: Methodsologymentioning

confidence: 98%

Personal Data Broker Instead of Blockchain for Students’ Data Privacy Assurance

Fonseca

Alier

García-Peñalvo

et al. 2019

Advances in Intelligent Systems and Computing

View full text Add to dashboard Cite

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“…Over the last few years, blockchain is rapidly moving from the fat protocols stage, where all value is generated in the protocol layer, into the fat Decentralised Applications (DApps) stage where transactions are programmable by smart contracts, and complex tokens are governed by Decentralised Autonomous Organisations (DAOs) [5], [28]. As this new generation of applications is evolving, blockchain's technical characteristics and specifications are becoming even more advanced and sophisticated [12]. By all means, describing in detail all the blockchain's features and functions is beyond the scope of this paper.…”

Section: Blockchain Characteristicsmentioning

confidence: 99%

“…Nevertheless, while blockchain technology is commonly associated with bitcoin and other cryptocurrencies, these are just the forerunners of a whole new wave of blockchain applications. According to experts, apart from disrupting financial services, blockchain could end up transforming a number of important industries, from healthcare to politics, whereas has the potential to create new foundations for economic and social systems [12], [5], [13]. As most of its broad possible applications are still emerging, the future orientation and impact of blockchain technology cannot be easily predicted.…”

Section: Introductionmentioning

confidence: 99%

Blockchain Mutability: Challenges and Proposed Solutions

Πολίτου

Casino

Alepis

et al. 2021

IEEE Trans. Emerg. Topics Comput.

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151

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Blockchain's evolution during the past decade is astonishing: from bitcoin to over 2.000 altcoins, and from decentralised electronic payments to transactions programmable by smart contracts and complex tokens governed by decentralised organisations. While the new generation of blockchain applications is still evolving, blockchain's technical characteristics are also advancing. Yet, immutability, a hitherto indisputable property according to which blockchain data cannot be edited nor deleted, remains the cornerstone of blockchain's security. Nevertheless, blockchain's immutability is being called into question lately in the light of the new erasing requirements imposed by the GDPR's "Right to be Forgotten (RtbF)" provision. As the RtbF obliges blockchain data to be editable in order restricted content redactions, modifications or deletions to be applied when requested, blockchains compliance with the regulation is indeed challenging, if not impracticable. Towards resolving this contradiction, various methods and techniques for mutable blockchains have been proposed in an effort to satisfy regulatory erasing requirements while preserving blockchains' security. To this end, this work aims to provide a comprehensive review on the state-of-the-art research approaches, technical workarounds and advanced cryptographic techniques that have been put forward to resolve this conflict and to discuss their potentials, constraints and limitations when applied in the wild to either permissioned or permissionless blockchains.Index Terms-Blockchain, immutability, Right to be forgotten, GDPR

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“…Due to their distribution, blockchains can diminish the cost and duration of transactions. More significantly, the blockchain technology is prepared to transform the value exchange, eliminating the requirement of having intermediate energy distributors or banks [70][71][72].…”

Section: Solarcoin Implements the Remarkable Features Of Blockchain Tmentioning

confidence: 99%

Implementing Blockchain Technology in Irrigation Systems That Integrate Photovoltaic Energy Generation Systems

et al. 2020

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Traditionally, the energy industry has been slow in adopting new disruptive technologies and the transition to a new energy market will require a new digital transformation plan, involving all parties from the energy market. Although it now seems to be an impossible and hard-to-accept scenario, especially by the big players in the industry, the pilot projects so far demonstrate that blockchain can play a major role in the future energy market, even if the technology is still in the first stages of the adoption life cycle. This article attempts to describe a solution to provide alternative irrigation systems for small farmers. The solution involves creating associations of small farmers that will use green energy from photovoltaic panels for the irrigation of agricultural lands. The efficiency of the proposed system can be monitored not only through digital hardware connected to photovoltaic panels and water pumps, but also by using the new blockchain technology that stimulates innovation and growth in the energy and a high level of automation though smart contracts. To accelerate the transition to the green energy economy, a SolarCoin version similar to the Bitcoin cryptocurrency has also been proposed, which is a utility token that creates new possibilities for energy and water trading.Sustainability 2020, 12, 1540 2 of 30 photovoltaic panels can still be used at high capacity to supplement the energy required to run the farm [4,12,13].Photovoltaic systems are ideal in isolated areas that do not have access to the national energy system. Below, the most important advantages of applying the photovoltaic systems in agriculture have been listed [14-16]:

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A systematic literature review of blockchain-based applications: Current status, classification and open issues

Cited by 1,624 publications

References 193 publications

Personal Data Broker Instead of Blockchain for Students’ Data Privacy Assurance

Personal Data Broker Instead of Blockchain for Students’ Data Privacy Assurance

Blockchain Mutability: Challenges and Proposed Solutions

Implementing Blockchain Technology in Irrigation Systems That Integrate Photovoltaic Energy Generation Systems

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