Attila Kertész

Attila Kertész
University of Szeged · Department of Software Engineering

Ph.D.

About

138
Publications
48,067
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
1,618
Citations
Introduction
Attila Kertesz, Ph.D. is an associate professor at the Department of Software Engineering, University of Szeged. His research interests include the federative management of Blockchain, IoT, Fog and Cloud systems. He is the leader of the FogBlock4Trust sub-grant project of the TruBlo EU H2020 project and a national project OTKA FK 131793. He is an MC member of the CERCIRAS and INDAIRPOLLNET Cost Actions.
Additional affiliations
September 2007 - present
University of Szeged
Position
  • Lecturer
October 2005 - December 2016
Hungarian Academy of Sciences
Position
  • Research Associate

Publications

Publications (138)
Article
Full-text available
Following the outbreak of the COVID-19 virus in the beginning of 2020, a new pandemic has spread over the world, changing our lives. Emerging technologies have played an important role in providing various solutions for preventing virus spreading. Different contact tracing, social distancing and vaccination passport applications have been developed...
Article
Full-text available
Trusted online credential management solutions are needed for instant and practical verification. Most of the available frameworks targeting this field violate the privacy of end-users or lack sufficient solutions in terms of security and Quality-of-Service (QoS). In this paper, we propose a Privacy-aware Fog-enhanced Blockchain-based online creden...
Article
Full-text available
Blockchain (BC) systems mainly depend on the consistent state of the Distributed Ledger (DL) at different logical and physical places of the network. The majority of network nodes need to be enforced to use one or both of the following approaches to remain consistent: i) to wait for certain delays (i.e. by requesting a hard puzzle solution as in Po...
Article
Full-text available
The inevitable evolution of information technology has led to the creation of IoT-Fog-Cloud systems, which combine the Internet of Things (IoT), Cloud Computing and Fog Computing. IoT systems are composed of possibly up to billions of smart devices, sensors and actuators connected through the Internet, and these components continuously generate lar...
Article
Full-text available
In the past ten years, the latest advances in Information and Communication Technology had a significant impact on distributed systems by giving birth to paradigms such as Cloud Computing, Fog Computing and the Internet of Things (IoT). The environments they created are closely coupled in most cases: IoT sensors and devices generate data that have...
Article
Full-text available
Fog computing provides an effective solution to various problems by extending the cloud’s functionality to typically more limited computing units closer to user devices. Fog computing can provide a higher level of user experience due to its geographic and network topology location and distribution. IoT services also need to be managed seamlessly to...
Preprint
Full-text available
p>Thousands of researchers and practitioners around the world neglect foundational understanding of the most trusted cryptocurrency platform, Bitcoin. According to the typical tendency of taking the discussion of Bitcoin's security for granted, it is usually confidently stated that, technically, Bitcoin is one of the most secure platforms for inves...
Chapter
Full-text available
Both revolutionary technologies of Fog Computing (FC) and Blockchain (BC) serve as enablers for enhanced, people-centric trusted applications, and they do meet in the provision of higher standards and expectations. In this paper, we address the reliability of fog-enhanced BC systems by analyzing the forking phenomenon under different conditions, an...
Conference Paper
Full-text available
Blockchain is the core technology behind several revolutionary applications that require consistent and immutable Distributed Ledgers, maintained by multi-party authorities. Examples of such applications include cryptocurrencies, smart contracts, Self Sovereign Identity (SSI) and Edge/Fog-enabled smart systems (eHealth, IIoT, IoV, etc.). Hyperledge...
Preprint
Full-text available
Trusted online credential management solutions are needed for instant and practical verification. Most of the available frameworks targeting this field violate the privacy of end-users or lack sufficient solutions in terms of security and Quality-of-Service (QoS). In this paper, we propose a Privacy-aware Fog-enhanced Blockchain-based online creden...
Preprint
Trusted online credential management solutions are needed for instant and practical verification. Most of the available frameworks targeting this field violate the privacy of end-users or lack sufficient solutions in terms of security and Quality-of-Service (QoS). In this paper, we propose a Privacy-aware Fog-enhanced Blockchain-based online creden...
Article
Full-text available
Presently, Internet of Things (IoT) protocols are at the heart of Machine-to-Machine (M2M) communication. Irrespective of the radio technologies used for deploying an IoT/M2M network, all independent data generated by IoT devices (sensors and actuators) rely heavily on the special messaging protocols used for M2M communication in IoT applications....
Conference Paper
Full-text available
The unprecedented pace of technological development in smart systems, incorporating sensing, actuation, and control functions, have the following properties and needs: (𝑖) they are interconnected and need scalable, virtualized resources to run, store and process data, (𝑖𝑖) they are mobile and can potentially access and build on user data made avail...
Conference Paper
Full-text available
The latest services of the Internet are expanded to the edge of the network, which led to the emergence of Internet of Things (IoT), where sensors, actuators and smart devices are connected in order to interop-erate with each other. IoT services often deal with a vast amount of raw data, therefore they collaborate by exploiting cloud resource capab...
Article
Full-text available
The recent development in wireless networks and devices leads to novel services that will utilize wireless communication on a new level [...]
Conference Paper
Full-text available
Both revolutionary technologies of Fog Computing (FC) and Blockchain (BC) serve as enablers for enhanced, people-centric trusted applications, and they do meet in the provision of higher standards and expectations. In this paper, we address the reliability of fog-enhanced BC systems by analyzing the forking phenomenon under different conditions, an...
Conference Paper
Full-text available
The continuously evolving information technology carries requirements to foster cost, resource and energy-aware systems. The Internet of Things is considered as one of the most trending technology, which is often coupled with Cloud or Fog Computing resources that manage the possibly big data generated by smart devices in an effective way. To reduce...
Article
Full-text available
Global average temperature had been significantly increasing during the past century, mainly due to the growing rates of Greenhouse Gas (GHG) emissions, leading to a Global Warming problem. Many research works indicated other causes of this problem, such as the Anthropogenic Heat Flux (AHF). Cloud Computing (CC) data centers (DCs), for example, per...
Article
Full-text available
A lot of hard work and years of research are still needed for developing successful Blockchain (BC) applications. Although it is not yet standardized, BC technology was proven as to be an enhancement factor for security, decentralization, and reliability, leading to be successfully implemented in cryptocurrency industries. Fog computing (FC) is one...
Chapter
Full-text available
In the past decade novel paradigms appeared in distributed systems, such as Cloud Computing, Fog Computing and the Internet of Things (IoT). Sensors and devices of IoT applications need big data to be stored, processed and analysed, and cloud systems offer suitable and scalable solutions for them. Recently fog nodes are utilized to provide data man...
Chapter
Full-text available
The recently emerged advances in ICT, such as cloud computing, the Internet of Things, and artificial intelligence, enabled the rapid creation of smart environments. Smart devices have appeared in our everyday life gaining access to personal data by monitoring our behavior and needs. To react to this new situation, the European Union introduced the...
Article
Full-text available
Nowadays billions of smart devices or things are present in Internet of Things (IoT) environments, such as homes, hospitals, factories, and vehicles, all around the world. As a result, the number of interconnected devices is continuously and rapidly growing. These devices communicate with each other and with other services using various communicati...
Preprint
Full-text available
A lot of hard work and years of research are still needed for developing successful Blockchain (BC) applications. Although it is not yet standardized, BC technology was proven as to be an enhancement factor for security, decentralization, and reliability, leading to be successfully implemented in cryptocurrency industries. Fog computing (FC) is one...
Article
Full-text available
In recent years, the deployment of Cloud Computing (CC) has become more popular both in research and industry applications, arising form various fields including e-health, manufacturing, logistics and social networking. This is due to the easiness of service deployment and data management, and the unlimited provision of virtual resources (VR). In s...
Conference Paper
Full-text available
Privacy issues in Cloud Computing are one of the major concerns for many individuals and companies around the world, and still a challenge for research and industry. The appearance of the 5G technology and the latest advances in Mobile Cloud Computing gave way to fog-enabled systems that represent the future of current cloud systems. Accordingly, t...
Chapter
Full-text available
Cloud Computing and the Internet of Things (IoT) have started to revolutionize traditional systems to be smart. Smart farming is an example of this process, that aims to respond to predictions and provisions of population growth by providing smart solutions in agriculture to improve productivity and reduce waste. Plant phenotyping is an important r...
Article
Full-text available
Fog computing (FC) is the extension of Cloud Computing (CC), from the core of the internet architecture to the edge of the network, with the aim to perform processes closer to end-users. This extension is proven to enhance security, and to reduce latency and energy consumption. Blockchain (BC), on the other hand, is the base technology behind crypt...
Conference Paper
Full-text available
The recent advances in Information and Communication Technology had a significant impact on distributed systems by giving birth to novel paradigms like Cloud Computing, Fog Computing and the Internet of Things (IoT). Clouds and fogs have promising properties to serve IoT needs, which require enormous data to be stored, processed and analysed genera...
Conference Paper
Full-text available
Blockchain technology has been successfully implemented in cryptocurrency industries, yet it is in the research phase for other applications. Enhanced security, decentralization and reliability are some of the advantages of blockchain technology that represent beneficial integration possibilities for computing and storage infrastructures. Fog compu...
Conference Paper
Full-text available
Technically Co-Sponsored by IEEE France Section FMEC 2020 CFP: Cloud computing provides large range of services and virtually unlimited available resources for users. New applications, such as virtual reality and smart building control, have emerged due to the large number of resources and services brought by cloud computing. However, the delay-sen...
Conference Paper
Full-text available
Next generation cloud systems will require a paradigm shift in how they are constructed and managed. Conventional control and management platforms are facing considerable challenges regarding flexibility, dependability and security that next generation systems will require. The cloud computing paradigm has gone part of the way towards alleviating s...
Article
Full-text available
In the scope of evaluation methodologies for Internet of Things (IoT) systems, some approaches concern security, while others latency. However, some methodologies evaluate systems that contain active entities, so-called actuators. In this paper, we propose a novel methodology for evaluating such systems with actuator components using Graph Represen...
Chapter
Full-text available
Information and Communications Technology (ICT) is rapidly evolving, social network services and smart applications have started to dominate the world of the Internet spreading on interconnected smart devices. Cloud computing is a key enabler of Internet of Things (IoT) applications, while and Fog and Edge computing provide further methods for effi...
Article
Full-text available
Intelligent systems are wanting for cities to cope with limited spaces and resources across the world. As a result, smart cities emerged mainly as a result of highly innovative ICT industries and markets, and additionally, they have started to use novel solutions taking advantage of the Internet of Things (IoT), big data and cloud computing technol...
Article
Full-text available
Infrastructure as a service clouds hide the complexity of maintaining the physical infrastructure with a slight disadvantage: they also hide their internal working details. Should users need knowledge about these details e.g., to increase the reliability or performance of their applications, they would need solutions to detect behavioural changes i...
Article
Full-text available
The Internet of Things (IoT) is the latest trend of the current ICT evolution, represented by a huge amount of powerful smart devices that have started to appear on the Internet. By responding to this new trend, many cloud providers have started to offer services for IoT management. Recent advances have already shown that cloud computing can be use...
Chapter
Full-text available
Cloud Computing has become the major candidate for commercial and academic compute infrastructures. Its virtualized solutions enable efficient, high-rate exploitation of computational and storage resources due to recent advances in data centre consolidation. Resources leased from these providers are offered under many pricing schemes which are ofte...
Conference Paper
Full-text available
According to a recent Beecham Research report, food production have to be increased by 70 percent till 2050 to feed 9.6 billion global population predicted by the United Nations Food and Agriculture Organisation. Since Cloud Computing and the Internet of Things (IoT) have already opened new ways for revolutionizing industrial processes, as a result...
Chapter
Full-text available
Data protection by design aims to reduce possible privacy harms that fog applications may cause by combining it with the data protection impact assessment (DPIA) and the data protection enhancing technologies. This chapter classifies fog/edge/Internet‐of‐Things (IoT) applications, analyzes the latest restrictions introduced by the General Data Prot...
Chapter
Full-text available
There is a growing number of communicating devices joining the Internet, and we will soon face a world of a distributed computing environment with interconnected smart devices. Cloud-based systems have also started to dominate the Internet space, with the emergence of the Internet of Things (IoT) paradigm. In spite of the huge developments in the c...
Article
Full-text available
Internet of Things (IoT) systems are realized by dynamic global network infrastructure with self-configuring capabilities, in which things can interact and communicate in the environment through the Internet by exchanging sensor data, and react autonomously to events generally without direct human intervention. Such systems can be utilized in many...
Conference Paper
Full-text available
With the appearance of things of the Internet of Things (IoT) area, IoT Cloud systems have been formed that are supported by cloud technologies, but still needs a significant amount of research. Data users produce with IoT devices are continuously posted to online services, which require the use of cloud providers to efficiently handle, and meaning...
Chapter
Full-text available
In the paradigm of Internet of Things (IoT), sensors, actuators and smart devices are connected to the Internet. Application providers utilize the connectivity of these devices with novel approaches involving cloud computing. Some applications require in depth analysis of the interaction between IoT devices and clouds. Research in this area is faci...
Chapter
Full-text available
The chapter summarizes activities of COST IC1304 ACROSS European Project corresponding to traffic management for Cloud Federation (CF). In particular, we provide a survey of CF architectures and standardization activities. We present comprehensive multi-level model for traffic management in CF that consists of five levels: Level 5 - Strategies for...
Article
Full-text available
In the age of the Internet of Things (IoT), more and more sensors, actuators and smart devices get connected to the network. Application providers often combine this connectivity with novel scenarios involving cloud computing. Before implementing changes in these large-scale systems, an in-depth analysis is often required to identify governance mod...
Article
The use of virtual machines (VMs) in Cloud computing provides various benefits in the overall software engineering lifecycle. These include efficient elasticity mechanisms resulting in higher resource utilization and lower operational costs. The VMs as software artifacts are created using provider-specific templates, called virtual machine images (...
Conference Paper
Cloud computing is the cornerstone for elastic and on-demand service provisioning to achieve more efficient resource utilisation and quicker responses to varying application loads. Virtual machines, one of the building blocks of clouds, can be created using provider specific templates stored in proprietary repositories, which may lead to provider l...
Conference Paper
Full-text available