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Janssen, Jeroen (author)
The Internet of Things (IoT) is producing significant amounts of data. Protecting this data from adversaries is therefore a prominent field of research. This paper conducts a review of the current state-of-the-art in the field of IoT integrated with Blockchain (BC) and Machine Learning (ML). The review focuses on the use of privacy and...
bachelor thesis 2023
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Couwenberg, Ruben (author)
The Internet of Things (IoT) consists out of billions of devices. This vast size magnifies the security and efficiency challenges the IoT faces. Blockchain (BC) features like decentralisation, immutability and smart contracts can negate these IoT challenges. <br/>In this paper we discuss how BC based solutions can significantly increase the...
bachelor thesis 2023
document
Schlatt, Vincent (author), Guggenberger, Tobias (author), Schmid, J. (author), Urbach, Nils (author)
Blockchain-based systems become increasingly attractive targets for cybercrime due to the rising amount of value transacted in respective systems. However, a comprehensive overview of existing attack vectors and a directive discussion of resulting research opportunities are missing. Employing a structured literature review, we extract and...
journal article 2023
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Esgin, Muhammed F. (author), Ersoy, O. (author), Kuchta, Veronika (author), Loss, Julian (author), Sakzad, Amin (author), Steinfeld, Ron (author), Yang, Xiangwen (author), Zhao, Raymond K. (author)
In this work, we study the blockchain leader election problem. The purpose of such protocols is to elect a leader who decides on the next block to be appended to the blockchain, for each block proposal round. Solutions to this problem are vital for the security of blockchain systems. We introduce an efficient blockchain leader election method...
conference paper 2023
document
Akkaoui, R. (author), Stefanov, Alexandru (author), Palensky, P. (author), Epema, D.H.J. (author)
The solar industry in residential areas has been witnessing an astonishing growth worldwide. At the heart of this transformation, affecting the edge of the electricity grid, reside smart inverters (SIs). These IoT-enabled devices aim to introduce a certain degree of intelligence to conventional inverters by integrating various grid support...
journal article 2023
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Nasrulin, B. (author), Ishmaev, G. (author), Decouchant, Jérémie (author), Pouwelse, J.A. (author)
Manipulation of user transactions by miners in permissionless blockchain systems is a growing concern. This problem is a pervasive and systemic issue that incurs high costs for users of decentralised applications and is known as Miner Extractable Value (MEV). Furthermore, transaction manipulations create other issues such as congestion,...
conference paper 2023
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Rukanova, B.D. (author), van Engelenburg, S.H. (author), Ubacht, J. (author), Tan, Y. (author), Geurts, Marco (author), Sies, Maarten (author), Molenhuis, Marcel (author), Slegt, Micha (author), van Dijk, Dennis (author)
Public value creation is traditionally considered as the citizens' collective expectations with respect to government and public services. Recent e-government literature indicates that what exactly constitutes public value in digital government is still debated. Whereas previous research acknowledges aspects such as co-production and the...
journal article 2023
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Gordijn, Daan (author), Kromes, R.G. (author), Giannetsos, Thanassis (author), Liang, K. (author)
This work aims to provide a more secure access control in Hyperledger Fabric blockchain by combining multiple ID’s, attributes, and policies with the components that regulate access control. The access control system currently used by Hyperledger Fabric is first completely analyzed. Next, a new implementation is proposed that builds upon the...
conference paper 2023
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Grishkov, I. (author), Kromes, R.G. (author), Giannetsos, Thanassis (author), Liang, K. (author)
This paper offers a prototype of a Hyperledger Fabric-IPFS based network architecture including a smart contract based encryption scheme that meant to improve the security of user’s data that is being uploaded to the distributed ledger. A new extension to the self-encryption scheme was deployed by integrating data owner’s identity into the...
conference paper 2023
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Blanco, Adrian Fuertes (author), Shi, Z. (author), Roy, Debraj (author), Zhao, Zhiming (author)
The emergence of blockchain technologies has created the possibility of transforming business processes in the form of immutable agreements called smart contracts. Smart contracts suffer from a major limitation; they cannot authenticate the trustworthiness of real-world data sources, creating the need for intermediaries called oracles....
conference paper 2023
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van Stam, Just (author)
Begun in 2020, Polkadot is one of the largest blockchains in market capitalization and development. However, privacy on the Polkadot network has yet to be one of the key focus points. Especially unlinkability between the user’s IP address and Polkadot address is essential. Without this unlinkability, users are vulnerable to targeted ads,...
master thesis 2022
document
Chiodo, Alex (author)
Urban areas are becoming more densely populated. More than 50% of the global population is already located in them. The Netherlands is among the countries with the highest population density. In 2017, 80% of its population was living in urban areas. It is expected that by 2050 the Netherlands will need between 300’000 and 1.6 million new homes....
master thesis 2022
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Lopes Vieira, Mariana (author)
master thesis 2022
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Post, Suzanne (author)
The modern world is under great pressure to fight climate change and limit global temperature rises to a sustainable level. As part of new mitigation strategies, the Voluntary Carbon Market (VCM) emerged after the compliance markets materialized. Via the voluntary carbon market companies can offset their carbon emissions. The captured carbon is...
master thesis 2022
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Yakali, Baris (author)
The Metaverse, although not a new concept, has had many developments recently. One of the core contributions for this is the current developments around blockchain technology and non-fungible tokens. Although it might be possible to create a metaverse on the blockchain, it would also be possible to create it on traditional technology, namely...
master thesis 2022
document
Veldkamp, Lisette (author)
The continual increase in cyber crime revolving blockchain applications calls for secure blockchain systems and clarity on the division of security responsibilities. This research is an integrated project between two master programmes at the Delft University of Technology: Computer Science and Communication Design for Innovation, and focuses on...
master thesis 2022
document
Chen, Annie (author)
As the Earth's temperature rises, it is critical that countries address and adapt to climate change. The European Union (EU) is committed to achieving carbon neutrality by 2050 (European Commission, 2018).The cornerstone of the EU’s climate policy to combat climate change is the EU Emission Trading System (ETS). It is the world’s first major...
master thesis 2022
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Haak, Stijn (author)
Work in The Netherlands seems to evolve along the line of technological inventions as a result of increased productivity rates. Because of its increasing productivity, the earliest technologies are quickly adopted in spaces of economic activity. Traditionally, the place to work was centralized so employers could keep an eye on their employees...
master thesis 2022
document
Dzelme, Rihards (author)
We are at the beginning of the most significant societal change since the internet. We are transitioning from a 2-dimensional browser-based interaction to immersive 3-dimensional experiences. The metaverse is not a place or a destination but a state where technology and ecosystem are symbiotic. <br/>Digital Twins, interactive toolkits,...
master thesis 2022
document
Grishkov, Ilya (author)
This paper offers a prototype of a smart-contract-based encryption scheme meant to improve the security of user data being uploaded to the ledger. A new extension to the self-encryption scheme was introduced by integrating identity into the encryption process. Such integration allows to permanently preserve ownership of the original file and...
bachelor thesis 2022
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