Blar i NTNU Open på forfatter "Spathoulas, Georgios"
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Attack Path Analysis and Cost-Efficient Selection of Cybersecurity Controls for Complex Cyberphysical Systems
Spathoulas, Georgios; Kavallieratos, Georgios; Katsikas, Sokratis; Baiocco, Alessio (Chapter, 2022)The increasing integration of information technology with operational technology leads to the formation of Cyber-Physical Systems (CPSs) that intertwine physical and cyber components and connect to each other. This ... -
Blockchain state channels with compact states through the use of RSA accumulators
Negka, Lydia; Katsika, Angeliki; Spathoulas, Georgios; Plagianakos, Vassilis (Peer reviewed; Journal article, 2023)One of the major concerns regarding currently proposed public blockchain systems relates to the feasible transaction processing rate. It is common for such systems to limit this rate to maintain the required levels of ... -
Blockchain State Channels: A State of the Art
Negka, Lydia; Spathoulas, Georgios (Peer reviewed; Journal article, 2021)Blockchain technology has been quite popular during recent years and it finally seems to present a significant rise with respect to its use for real-world applications. This advancement has brought up a critical challenge ... -
Collaborative Blockchain-Based Detection of Distributed Denial of Service Attacks Based on Internet of Things Botnets
Spathoulas, Georgios; Giachoudis, Nikolaos; Damiris, Georgios-Paraskevas; Theodoridis, Georgios (Peer reviewed; Journal article, 2019)Internet of Things is one of the most significant latest developments in computer science. It is common for modern computing infrastructures to partially consist of numerous low power devices that are characterized by high ... -
Cyber Risk Propagation and Optimal Selection of Cybersecurity Controls for Complex Cyberphysical Systems
Kavallieratos, Georgios; Spathoulas, Georgios; Katsikas, Sokratis (Peer reviewed; Journal article, 2021)The increasingly witnessed integration of information technology with operational technology leads to the formation of Cyber-Physical Systems (CPSs) that intertwine physical and cyber components and connect to each other ... -
Efficient Consensus Between Multiple Controllers in Software Defined Networks (SDN)
Lalou, Stavroula; Spathoulas, Georgios; Katsikas, Sokratis (Chapter, 2022)Software Defined Networking (SDN) has emerged as a popular paradigm for managing large scale networks. The traditional single controller architecture has limitations in managing the entire network: it can become a bottleneck ... -
Enabling Defensive Deception by Leveraging Software Defined Networks
Belalis, Ilias; Kavallieratos, Georgios; Gkioulos, Vasileios; Spathoulas, Georgios (Chapter, 2020)Computer networks are critical for modern society and protecting their security is of high importance. Due to their increasing size and complexity providing the required cyber security counter measures has become a very ... -
From Internet of Threats to Internet of Things: A Cyber Security Architecture for Smart Homes
Augusto-Gonzalez, Javier; Collen, Anastasija; Evangelatos, S; Anagnostopoulos, Marios; Spathoulas, Georgios; Giannoutakis, Konstantinos M.; Votis, Konstantinos; Tzovaras, Dimitrios; Genge, B; Gelenbe, Erol; Nijdam, Niels Alexander (Peer reviewed; Journal article, 2019)The H2020 European research project GHOST - Safe-Guarding Home IoT Environments with Personalised Real-time Risk Control - aims to deploy a highly effective security framework for IoT smart home residents through a novel ... -
GHOST - Safe-Guarding Home IoT Environments with Personalised Real-time Risk Control
Collen, Anastasija; Nijdam, Niels Alexander; Augusto-Gonzalez, Javier; Katsikas, Sokratis; Giannoutakis, Konstantinos M.; Spathoulas, Georgios; Gelenbe, Erol; Votis, Konstantinos; Tzovaras, Dimitrios; Ghavami, Navid; Volkamer, Melanie; Haller, Piroska; Sanchez, Alvaro; Dimas, Miltiadis (Chapter, 2018)We present the European research project GHOST, (Safe-guarding home IoT environments with personalised real-time risk control), which challenges the traditional cyber security solutions for the IoT by proposing a novel ... -
Research Trends, Challenges, and Emerging Topics in Digital Forensics: A Review of Reviews
Casino, Fran; Dasaklis, Thomas K.; Spathoulas, Georgios; Anagnostopoulos, Marios; Ghosal, Amrita; Borocz, Istvan; Solanas, Agusti; Conti, Mauro; Patsakis, Constantinos (Peer reviewed; Journal article, 2022)Due to its critical role in cybersecurity, digital forensics has received significant attention from researchers and practitioners alike. The ever increasing sophistication of modern cyberattacks is directly related to the ... -
Risk assessment and control selection for cyber-physical systems: A case study on supply chain tracking systems
Kavallieratos, Georgios; Grigoriadis, Christos; Katsika, Angeliki; Spathoulas, Georgios; Kotzanikolaou, Panayiotis; Katsikas, Sokratis (Journal article, 2022)Aim: The paper proposes a novel risk assessment method ology for complex cyber-physical systems: The proposed method ology may assist risk assessors to: (a) assess the risks deriving from cyber and physical interactions ... -
Towards secure, decentralised, and privacy friendly forensic analysis of vehicular data
Negka, Lydia; Spathoulas, Georgios (Journal article; Peer reviewed, 2021) -
Tracing your smart-home devices conversations: A real world iot traffic data-set
Anagnostopoulos, Marios; Spathoulas, Georgios; Viaño, Brais; Augusto-Gonzalez, Javier (Peer reviewed; Journal article, 2020)Smart-home installations exponential growth has raised major security concerns. To this direction, the GHOST project, a European Union Horizon 2020 Research and Innovation funded project, aims to develop a reference ... -
Using Blockchains to strengthen the security of Internet of Things
Kouzinopoulos, Charalampos S.; Spathoulas, Georgios; Giannoutakis, Konstantinos M.; Votis, Konstantinos; Pandey, Pankaj; Tzovaras, Dimitrios; Katsikas, Sokratis; Collen, Anastasija; Nijdam, Niels Alexander (Chapter, 2018)Blockchain is a distributed ledger technology that became popular as the foundational block of the Bitcoin cryptocurrency. Over the past few years it has seen a rapid growth, both in terms of research and commercial usage. ...