All Outputs (76)

ICT Systems Security and Privacy Protection: 39th IFIP International Conference, SEC 2024, Edinburgh, UK, June 12–14, 2024, Proceedings (2024)
Book
Pitropakis, N., Katsikas, S., Furnell, S., & Markantonakis, K. (Eds.). (2024). ICT Systems Security and Privacy Protection: 39th IFIP International Conference, SEC 2024, Edinburgh, UK, June 12–14, 2024, Proceedings. Springer. https://doi.org/10.1007/978-3-031-65175-5

This book constitutes the proceedings of the 39th IFIP International Conference on ICT Systems Security and Privacy Protection, SEC 2024, held in Edinburgh, UK, during June 12–14, 2024.

The 34 full papers presented were carefully reviewed and sel... Read More about ICT Systems Security and Privacy Protection: 39th IFIP International Conference, SEC 2024, Edinburgh, UK, June 12–14, 2024, Proceedings.

DID:RING: Ring Signatures Using Decentralised Identifiers For Privacy-Aware Identity Proof (2024)
Presentation / Conference Contribution
Kasimatis, D., Grierson, S., Buchanan, W. J., Eckl, C., Papadopoulos, P., Pitropakis, N., Chrysoulas, C., Thomson, C., & Ghaleb, B. (2024, September). DID:RING: Ring Signatures Using Decentralised Identifiers For Privacy-Aware Identity Proof. Presented at 2024 IEEE International Conference on Cyber Security and Resilience (CSR), London, UK

Decentralised identifiers have become a standardised element of digital identity architecture, with supra-national organisations such as the European Union adopting them as a key component for a unified European digital identity ledger. This paper de... Read More about DID:RING: Ring Signatures Using Decentralised Identifiers For Privacy-Aware Identity Proof.

VisCrypt: Image Encryption Featuring Novel Chaotic Key Generation and Block Permutation Techniques with Visual Cryptography (2024)
Presentation / Conference Contribution
Khan, M. S., Ahmad, J., Ali, M., Dubai, A. A., Pitropakis, N., & Buchanan, W. J. (2024, July). VisCrypt: Image Encryption Featuring Novel Chaotic Key Generation and Block Permutation Techniques with Visual Cryptography. Presented at 2024 IEEE 7th International Conference on Advanced Technologies, Signal and Image Processing (ATSIP), Sousse, Tunisia

In this digital era, ensuring the security of data transmission is critically important. Digital data, especially image data, needs to be secured against unauthorized access. In this regards, this paper presents a robust image encryption scheme named... Read More about VisCrypt: Image Encryption Featuring Novel Chaotic Key Generation and Block Permutation Techniques with Visual Cryptography.

Advancements in Federated Learning for Health Applications: A Concise Survey (2024)
Presentation / Conference Contribution
Stamatis, V., Radoglou-Grammatikis, P., Sarigiannidis, A., Pitropakis, N., Lagkas, T., Argyriou, V., Markakis, E., & Sarigiannidis, P. (2024, April). Advancements in Federated Learning for Health Applications: A Concise Survey. Presented at 2024 20th International Conference on Distributed Computing in Smart Systems and the Internet of Things (DCOSS-IoT), Abu Dhabi, United Arab Emirates

Smart solutions in the healthcare domain have garnered considerable attention due to their potential to enhance standard treatment methods and improve overall health. However, privacy concerns often prevent the sharing of healthcare data, which can l... Read More about Advancements in Federated Learning for Health Applications: A Concise Survey.

Examining the Strength of Three Word Passwords (2024)
Presentation / Conference Contribution
Fraser, W., Broadbent, M., Pitropakis, N., & Chrysoulas, C. (2024, June). Examining the Strength of Three Word Passwords. Presented at ICT Systems Security and Privacy Protection (SEC 2024), Edinburgh

Passwords make up the most common method of authentication. With ever increasing computing power, password complexity has had to keep pace. This creates a challenge for remembering all complex passwords which some password policies attempt to resolve... Read More about Examining the Strength of Three Word Passwords.

Malicious Insider Threat Detection Using Sentiment Analysis of Social Media Topics (2024)
Presentation / Conference Contribution
Kenny, M., Pitropakis, N., Sayeed, S., Chrysoulas, C., & Mylonas, A. (2024, June). Malicious Insider Threat Detection Using Sentiment Analysis of Social Media Topics. Presented at 39th IFIP International Conference, SEC 2024, Edinburgh

Malicious insiders often pose a danger to information security systems, which can be a crucial challenge to tackle. Existing technological solutions attempt to identify potential threats via their anomalous system interactions, however, fully fail to... Read More about Malicious Insider Threat Detection Using Sentiment Analysis of Social Media Topics.

Transforming EU Governance: The Digital Integration Through EBSI and GLASS (2024)
Presentation / Conference Contribution
Kasimatis, D., Buchanan, W. J., Abubakar, M., Lo, O., Chrysoulas, C., Pitropakis, N., Papadopoulos, P., Sayeed, S., & Sel, M. (2024, June). Transforming EU Governance: The Digital Integration Through EBSI and GLASS. Presented at 39th IFIP International Conference, Edinburgh, UK

Traditionally, government systems managed citizen identities through disconnected data systems, using simple identifiers and paper-based processes, limiting digital trust and requiring citizens to request identity verification documents. The digital... Read More about Transforming EU Governance: The Digital Integration Through EBSI and GLASS.

Chaotic Quantum Encryption to Secure Image Data in Post Quantum Consumer Technology (2024)
Journal Article
Khan, M. S., Ahmad, J., Al-Dubai, A., Pitropakis, N., Ghaleb, B., Ullah, A., Khan, M. A., & Buchanan, W. J. (online). Chaotic Quantum Encryption to Secure Image Data in Post Quantum Consumer Technology. IEEE Transactions on Consumer Electronics, https://doi.org/10.1109/tce.2024.3415411

The rapid advancement in consumer technology has led to an exponential increase in the connected devices, resulting in an enormous and continuous flow of data, particularly the image data. This data needs to be processed, managed, and secured efficie... Read More about Chaotic Quantum Encryption to Secure Image Data in Post Quantum Consumer Technology.

PermutEx: Feature-Extraction-Based Permutation — A New Diffusion Scheme for Image Encryption Algorithms (2024)
Presentation / Conference Contribution
Khan, M. S., Ahmad, J., Al-Dubai, A., Jaroucheh, Z., Pitropakis, N., & Buchanan, W. J. (2023, November). PermutEx: Feature-Extraction-Based Permutation — A New Diffusion Scheme for Image Encryption Algorithms. Presented at 2023 IEEE 28th International Workshop on Computer Aided Modeling and Design of Communication Links and Networks (CAMAD), Edinburgh, United Kingdom

Traditional permutation schemes mostly focus on random scrambling of pixels, often neglecting the intrinsic image information that could enhance diffusion in image encryption algorithms. This paper introduces PermutEx, a feature-extractionbased permu... Read More about PermutEx: Feature-Extraction-Based Permutation — A New Diffusion Scheme for Image Encryption Algorithms.

OPSEC VS Leaked Credentials: Password reuse in Large-Scale Data Leaks (2023)
Presentation / Conference Contribution
Uzonyi, D. G., Pitropakis, N., McKeown, S., & Politis, I. (2023, November). OPSEC VS Leaked Credentials: Password reuse in Large-Scale Data Leaks. Presented at 2023 IEEE 28th International Workshop on Computer Aided Modeling and Design of Communication Links and Networks (CAMAD), Edinburgh, UK

Security and authentication are ubiquitous problems that impact all modern networked systems. Password-based authentication systems are still prevalent, and information leaked via other channels may be used to attack networked systems. Researchers ha... Read More about OPSEC VS Leaked Credentials: Password reuse in Large-Scale Data Leaks.

SRSS: A New Chaos-Based Single-Round Single S-Box Image Encryption Scheme for Highly Auto-Correlated Data (2023)
Presentation / Conference Contribution
Shahbaz Khan, M., Ahmad, J., Ali, H., Pitropakis, N., Al-Dubai, A., Ghaleb, B., & Buchanan, W. J. (2023, October). SRSS: A New Chaos-Based Single-Round Single S-Box Image Encryption Scheme for Highly Auto-Correlated Data. Presented at 9th International Conference on Engineering and Emerging Technologies (IEEE ICEET 2023), Istanbul, Turkey

With the advent of digital communication, securing digital images during transmission and storage has become a critical concern. The traditional s-box substitution methods often fail to effectively conceal the information within highly auto-correlate... Read More about SRSS: A New Chaos-Based Single-Round Single S-Box Image Encryption Scheme for Highly Auto-Correlated Data.

AALLA: Attack-Aware Logical Link Assignment Cost-Minimization Model for Protecting Software-Defined Networks against DDoS Attacks (2023)
Journal Article
Ali, S., Tan, S. C., Lee, C. K., Yusoff, Z., Haque, M. R., Mylonas, A., & Pitropakis, N. (2023). AALLA: Attack-Aware Logical Link Assignment Cost-Minimization Model for Protecting Software-Defined Networks against DDoS Attacks. Sensors, 23(21), Article 8922. https://doi.org/10.3390/s23218922

Software-Defined Networking (SDN), which is used in Industrial Internet of Things, uses a controller as its “network brain” located at the control plane. This uniquely distinguishes it from the traditional networking paradigms because it provides a g... Read More about AALLA: Attack-Aware Logical Link Assignment Cost-Minimization Model for Protecting Software-Defined Networks against DDoS Attacks.

CellSecure: Securing Image Data in Industrial Internet-of-Things via Cellular Automata and Chaos-Based Encryption (2023)
Presentation / Conference Contribution
Ali, H., Khan, M. S., Driss, M., Ahmad, J., Buchanan, W. J., & Pitropakis, N. (2023, October). CellSecure: Securing Image Data in Industrial Internet-of-Things via Cellular Automata and Chaos-Based Encryption. Presented at 2023 IEEE 98th Vehicular Technology Conference (VTC2023-Fall), Hong Kong, Hong Kong

In the era of Industrial IoT (IIoT) and Industry 4.0, ensuring secure data transmission has become a critical concern. Among other data types, images are widely transmitted and utilized across various IIoT applications, ranging from sensor-generated... Read More about CellSecure: Securing Image Data in Industrial Internet-of-Things via Cellular Automata and Chaos-Based Encryption.

Rapidrift: Elementary Techniques to Improve Machine Learning-Based Malware Detection (2023)
Journal Article
Manikandaraja, A., Aaby, P., & Pitropakis, N. (2023). Rapidrift: Elementary Techniques to Improve Machine Learning-Based Malware Detection. Computers, 12(10), Article 195. https://doi.org/10.3390/computers12100195

Artificial intelligence and machine learning have become a necessary part of modern living along with the increased adoption of new computational devices. Because machine learning and artificial intelligence can detect malware better than traditional... Read More about Rapidrift: Elementary Techniques to Improve Machine Learning-Based Malware Detection.

Start thinking in graphs: using graphs to address critical attack paths in a Microsoft cloud tenant (2023)
Journal Article
Elmiger, M., Lemoudden, M., Pitropakis, N., & Buchanan, W. J. (2024). Start thinking in graphs: using graphs to address critical attack paths in a Microsoft cloud tenant. International Journal of Information Security, 23, 467-485. https://doi.org/10.1007/s10207-023-00751-6

The challenge of securing IT environments has reached a new complexity level as a growing number of organisations adopt cloud solutions. This trend increases the possibility of overseen attack paths in an organisation’s IT infrastructure. This paper... Read More about Start thinking in graphs: using graphs to address critical attack paths in a Microsoft cloud tenant.

TRUSTEE: Towards the creation of secure, trustworthy and privacy-preserving framework (2023)
Presentation / Conference Contribution
Sayeed, S., Pitropakis, N., Buchanan, W. J., Markakis, E., Papatsaroucha, D., & Politis, I. (2023, August). TRUSTEE: Towards the creation of secure, trustworthy and privacy-preserving framework. Presented at 18th International Conference on Availability, Reliability and Security, Benevento, Italy

Digital transformation is a method where new technologies replace the old to meet essential organisational requirements and enhance the end-user experience. Technological transformation often improvises the manner in which a facility or resources are... Read More about TRUSTEE: Towards the creation of secure, trustworthy and privacy-preserving framework.

Progressive Web Apps to Support (Critical) Systems in Low or No Connectivity Areas (2023)
Presentation / Conference Contribution
Josephe, A. O., Chrysoulas, C., Peng, T., El Boudani, B., Iatropoulos, I., & Pitropakis, N. (2023, May). Progressive Web Apps to Support (Critical) Systems in Low or No Connectivity Areas. Presented at 2023 IEEE IAS Global Conference on Emerging Technologies (GlobConET), London

Web applications are popular in our world today and every organization or individual either build or access at least one each day. It’s important for every application user to continue accessing contents of a web application irrespective of the netwo... Read More about Progressive Web Apps to Support (Critical) Systems in Low or No Connectivity Areas.

Forensic Investigation Using RAM Analysis on the Hadoop Distributed File System (2023)
Presentation / Conference Contribution
Laing, S., Ludwiniak, R., El Boudani, . B., Chrysoulas, C., Ubakanma, G., & Pitropakis, N. (2023, April). Forensic Investigation Using RAM Analysis on the Hadoop Distributed File System. Presented at 2023 19th International Conference on the Design of Reliable Communication Networks (DRCN), Barcelona, Spain

The usage of cloud systems is at an all-time high, and with more organizations reaching for Big Data the forensic implications must be analyzed. The Hadoop Distributed File System is widely used both as a cloud service and with organizations implemen... Read More about Forensic Investigation Using RAM Analysis on the Hadoop Distributed File System.

BIoMT: A Blockchain-Enabled Healthcare Architecture for Information Security in the Internet of Medical Things (2023)
Journal Article
Badri, S., Ullah Jan, S., Alghazzawi, D., Aldhaheri, S., & Pitropakis, N. (2023). BIoMT: A Blockchain-Enabled Healthcare Architecture for Information Security in the Internet of Medical Things. Computer Systems Science and Engineering, 46(3), 3667-3684. https://doi.org/10.32604/csse.2023.037531

Rapid technological advancement has enabled modern healthcare systems to provide more sophisticated and real-time services on the Internet of Medical Things (IoMT). The existing cloud-based, centralized IoMT architectures are vulnerable to multiple s... Read More about BIoMT: A Blockchain-Enabled Healthcare Architecture for Information Security in the Internet of Medical Things.

Attacking Windows Hello for Business: Is It What We Were Promised? (2023)
Journal Article
Haddad, J., Pitropakis, N., Chrysoulas, C., Lemoudden, M., & Buchanan, W. J. (2023). Attacking Windows Hello for Business: Is It What We Were Promised?. Cryptography, 7(1), Article 9. https://doi.org/10.3390/cryptography7010009

Traditional password authentication methods have raised many issues in the past, including insecure practices, so it comes as no surprise that the evolution of authentication should arrive in the form of password-less solutions. This research aims to... Read More about Attacking Windows Hello for Business: Is It What We Were Promised?.