Nikolaos Pitropakis

According to our database, Nikolaos Pitropakis authored at least 71 papers between 2013 and 2024.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of four.

2024

Start thinking in graphs: using graphs to address critical attack paths in a Microsoft cloud tenant.

Marius Elmiger, Mouad Lemoudden, Nikolaos Pitropakis, William J. Buchanan

Int. J. Inf. Sec., February, 2024

DID: RING: Ring Signatures using Decentralised Identifiers For Privacy-Aware Identity.

Dimitrios Kasimatis, Sam Grierson, William J. Buchanan, Chris Eckl, Pavlos Papadopoulos, Nikolaos Pitropakis, Craig Thomson, Baraq Ghaleb

CoRR, 2024

RNA-TransCrypt: Image Encryption Using Chaotic RNA Encoding, Novel Transformative Substitution, and Tailored Cryptographic Operations.

Muhammad Shahbaz Khan, Jawad Ahmad, Ahmed Al-Dubai, Baraq Ghaleb, Nikolaos Pitropakis, William J. Buchanan

CoRR, 2024

Malicious Insider Threat Detection Using Sentiment Analysis of Social Media Topics.

Matt Kenny, Nikolaos Pitropakis, Sarwar Sayeed, Christos Chrysoulas, Alexios Mylonas

Proceedings of the ICT Systems Security and Privacy Protection, 2024

Transforming EU Governance: The Digital Integration Through EBSI and GLASS.

Dimitrios Kasimatis, William J. Buchanan, Mwrwan Abubakar, Owen Lo, Christos Chrysoulas, Nikolaos Pitropakis, Pavlos Papadopoulos, Sarwar Sayeed, Marc Sel

Proceedings of the ICT Systems Security and Privacy Protection, 2024

Examining the Strength of Three Word Passwords.

William Fraser, Matthew Broadbent, Nikolaos Pitropakis, Christos Chrysoulas

Proceedings of the ICT Systems Security and Privacy Protection, 2024

Advancements in Federated Learning for Health Applications: A Concise Survey.

Vasileios Stamatis, Panagiotis I. Radoglou-Grammatikis, Antonios Sarigiannidis, Nikolaos Pitropakis, Thomas Lagkas, Vasileios Argyriou, Evangelos K. Markakis, Panagiotis G. Sarigiannidis

Proceedings of the 20th International Conference on Distributed Computing in Smart Systems and the Internet of Things, 2024

DID:RING: Ring Signatures Using Decentralised Identifiers For Privacy-Aware Identity Proof.

Dimitrios Kasimatis, Sam Grierson, William J. Buchanan, Chris Eckl, Pavlos Papadopoulos, Nikolaos Pitropakis, Christos Chrysoulas, Craig Thomson, Baraq Ghaleb

Proceedings of the IEEE International Conference on Cyber Security and Resilience, 2024

VisCrypt: Image Encryption Featuring Novel Chaotic Key Generation and Block Permutation Techniques with Visual Cryptography.

Muhammad Shahbaz Khan, Jawad Ahmad, Muhammad Ali, Ahmed Al-Dubai, Nikolaos Pitropakis, William J. Buchanan

Proceedings of the 7th IEEE International Conference on Advanced Technologies, 2024

2023

AALLA: Attack-Aware Logical Link Assignment Cost-Minimization Model for Protecting Software-Defined Networks against DDoS Attacks.

Sameer Ali, Saw Chin Tan, Ching Kwang Lee, Zulfadzli Yusoff, Muhammad Reazul Haque, Alexios Mylonas, Nikolaos Pitropakis

Sensors, November, 2023

Rapidrift: Elementary Techniques to Improve Machine Learning-Based Malware Detection.

Abishek Manikandaraja, Peter Aaby, Nikolaos Pitropakis

Comput., September, 2023

Attacking Windows Hello for Business: Is It What We Were Promised?

Joseph Haddad, Nikolaos Pitropakis, Christos Chrysoulas, Mouad Lemoudden, William J. Buchanan

Cryptogr., March, 2023

Explainable AI-Based DDOS Attack Identification Method for IoT Networks.

Chathuranga Sampath Kalutharage, Xiaodong Liu, Christos Chrysoulas, Nikolaos Pitropakis, Pavlos Papadopoulos

Comput., February, 2023

Using Social Media & Sentiment Analysis to Make Investment Decisions.

Ben Hasselgren, Christos Chrysoulas, Nikolaos Pitropakis, William J. Buchanan

Future Internet, 2023

BIoMT: A Blockchain-Enabled Healthcare Architecture for Information Security in the Internet of Medical Things.

Sahar Badri, Sana Ullah Jan, Daniyal M. Alghazzawi, Sahar Aldhaheri, Nikolaos Pitropakis

Comput. Syst. Sci. Eng., 2023

SRSS: A New Chaos-Based Single-Round Single S-Box Image Encryption Scheme for Highly Auto-Correlated Data.

Muhammad Shahbaz Khan, Jawad Ahmad, Hisham Ali, Nikolaos Pitropakis, Ahmed Al-Dubai, Baraq Ghaleb, William J. Buchanan

CoRR, 2023

Towards The Creation Of The Future Fish Farm.

Pavlos Papadopoulos, William J. Buchanan, Sarwar Sayeed, Nikolaos Pitropakis

CoRR, 2023

CellSecure: Securing Image Data in Industrial Internet-of-Things via Cellular Automata and Chaos-Based Encryption.

Hassan Ali, Muhammad Shahbaz Khan, Maha Driss, Jawad Ahmad, William J. Buchanan, Nikolaos Pitropakis

Proceedings of the 98th IEEE Vehicular Technology Conference, 2023

Forensic Investigation Using RAM Analysis on the Hadoop Distributed File System.

Stuart Laing, Robert Ludwiniak, Brahim El Boudani, Christos Chrysoulas, George Ubakanma, Nikolaos Pitropakis

Proceedings of the 19th International Conference on the Design of Reliable Communication Networks, 2023

OPSEC VS Leaked Credentials: Password reuse in Large-Scale Data Leaks.

Dávid Gábor Uzonyi, Nikolaos Pitropakis, Sean McKeown, Ilias Politis

Proceedings of the 28th IEEE International Workshop on Computer Aided Modeling and Design of Communication Links and Networks , 2023

PermutEx: Feature-Extraction-Based Permutation - A New Diffusion Scheme for Image Encryption Algorithms.

Muhammad Shahbaz Khan, Jawad Ahmad, Ahmed Al-Dubai, Zakwan Jaroucheh, Nikolaos Pitropakis, William J. Buchanan

Proceedings of the 28th IEEE International Workshop on Computer Aided Modeling and Design of Communication Links and Networks , 2023

TRUSTEE: Towards the creation of secure, trustworthy and privacy-preserving framework.

Sarwar Sayeed, Nikolaos Pitropakis, William J. Buchanan, Evangelos K. Markakis, Dimitra Papatsaroucha, Ilias Politis

Proceedings of the 18th International Conference on Availability, Reliability and Security, 2023

2022

HDL-IDS: A Hybrid Deep Learning Architecture for Intrusion Detection in the Internet of Vehicles.

Safi Ullah, Muazzam Ali Khan, Jawad Ahmad, Sajjad Shaukat Jamal, Zil E. Huma, Muhammad Tahir Hassan, Nikolaos Pitropakis, Arshad Ali, William J. Buchanan

Sensors, 2022

A New Intrusion Detection System for the Internet of Things via Deep Convolutional Neural Network and Feature Engineering.

Safi Ullah, Jawad Ahmad, Muazzam Ali Khan, Eman H. Alkhammash, Myriam Hadjouni, Yazeed Ghadi, Faisal Saeed, Nikolaos Pitropakis

Sensors, 2022

Ransomware: Analysing the Impact on Windows Active Directory Domain Services.

Grant McDonald, Pavlos Papadopoulos, Nikolaos Pitropakis, Jawad Ahmad, William J. Buchanan

Sensors, 2022

GLASS: A Citizen-Centric Distributed Data-Sharing Model within an e-Governance Architecture.

Owen Lo, William J. Buchanan, Sarwar Sayeed, Pavlos Papadopoulos, Nikolaos Pitropakis, Christos Chrysoulas

Sensors, 2022

DRaNN_PSO: A deep random neural network with particle swarm optimization for intrusion detection in the industrial internet of things.

Jawad Ahmad, Syed Aziz Shah, Shahid Latif, Fawad Ahmed, Zhuo Zou, Nikolaos Pitropakis

J. King Saud Univ. Comput. Inf. Sci., 2022

Trusted Threat Intelligence Sharing in Practice and Performance Benchmarking through the Hyperledger Fabric Platform.

Hisham Ali, Jawad Ahmad, Zakwan Jaroucheh, Pavlos Papadopoulos, Nikolaos Pitropakis, Owen Lo, Will Abramson, William J. Buchanan

Entropy, 2022

The Future of Integrated Digital Governance in the EU: EBSI and GLASS.

William J. Buchanan, Mwrwan Abubakar, Owen Lo, Christos Chrysoulas, Nikolaos Pitropakis, Pavlos Papadopoulos, Sarwar Sayeed, Marc Sel

CoRR, 2022

The Greater The Power, The More Dangerous The Abuse: Facing Malicious Insiders in The Cloud.

Nikolaos Pitropakis, Christos Lyvas, Costas Lambrinoudakis

CoRR, 2022

Investigating machine learning attacks on financial time series models.

Michael Gallagher, Nikolaos Pitropakis, Christos Chrysoulas, Pavlos Papadopoulos, Alexios Mylonas, Sokratis K. Katsikas

Comput. Secur., 2022

A New Multistage Encryption Scheme Using Linear Feedback Register and Chaos-Based Quantum Map.

Adel R. Alharbi, Jawad Ahmad, Arshad Ali, Sajjad Shaukat Jamal, Fawad Masood, Yazeed Yasin Ghadi, Nikolaos Pitropakis, William J. Buchanan

Complex., 2022

Post Quantum Cryptography Analysis of TLS Tunneling on a Constrained Device.

Jon Barton, William J. Buchanan, Nikolaos Pitropakis, Sarwar Sayeed, Will Abramson

Proceedings of the 8th International Conference on Information Systems Security and Privacy, 2022

2021

Launching Adversarial Attacks against Network Intrusion Detection Systems for IoT.

Pavlos Papadopoulos, Oliver Thornewill von Essen, Nikolaos Pitropakis, Christos Chrysoulas, Alexios Mylonas, William J. Buchanan

J. Cybersecur. Priv., April, 2021

PyDentity: A playground for education and experimentation with the Hyperledger verifiable information exchange platform.

Will Abramson, Pavlos Papadopoulos, Nikolaos Pitropakis, William J. Buchanan

Softw. Impacts, 2021

A Deep Learning-Based Intrusion Detection System for MQTT Enabled IoT.

Muhammad Almas Khan, Muazzam Ali Khan, Sana Ullah Jan, Jawad Ahmad, Sajjad Shaukat Jamal, Awais Aziz Shah, Nikolaos Pitropakis, William J. Buchanan

Sensors, 2021

A Comparative Analysis of Honeypots on Different Cloud Platforms.

Christopher Kelly, Nikolaos Pitropakis, Alexios Mylonas, Sean McKeown, William J. Buchanan

Sensors, 2021

Privacy and Trust Redefined in Federated Machine Learning.

Pavlos Papadopoulos, Will Abramson, Adam J. Hall, Nikolaos Pitropakis, William J. Buchanan

Mach. Learn. Knowl. Extr., 2021

Towards Lightweight URL-Based Phishing Detection.

Andrei Butnaru, Alexios Mylonas, Nikolaos Pitropakis

Future Internet, 2021

Evaluating Tooling and Methodology when Analysing Bitcoin Mixing Services After Forensic Seizure.

Edward Henry Young, Christos Chrysoulas, Nikolaos Pitropakis, Pavlos Papadopoulos, William J. Buchanan

CoRR, 2021

Browsers' Private Mode: Is It What We Were Promised?

Kris Hughes, Pavlos Papadopoulos, Nikolaos Pitropakis, Adrian Smales, Jawad Ahmad, William J. Buchanan

Comput., 2021

Launching Adversarial Label Contamination Attacks Against Malicious URL Detection.

Bruno Marchand, Nikolaos Pitropakis, William J. Buchanan, Costas Lambrinoudakis

Proceedings of the Trust, Privacy and Security in Digital Business, 2021

Privacy-preserving and Trusted Threat Intelligence Sharing using Distributed Ledgers.

Hisham Ali, Pavlos Papadopoulos, Jawad Ahmad, Nikolaos Pitropakis, Zakwan Jaroucheh, William J. Buchanan

Proceedings of the 14th International Conference on Security of Information and Networks, 2021

PAN-DOMAIN: Privacy-preserving Sharing and Auditing of Infection Identifier Matching.

Will Abramson, William J. Buchanan, Sarwar Sayeed, Nikolaos Pitropakis, Owen Lo

Proceedings of the 14th International Conference on Security of Information and Networks, 2021

Towards An SDN Assisted IDS.

Robert Sutton, Robert Ludwiniak, Nikolaos Pitropakis, Christos Chrysoulas, Tasos Dagiuklas

Proceedings of the 11th IFIP International Conference on New Technologies, 2021

GLASS: Towards Secure and Decentralized eGovernance Services Using IPFS.

Christos Chrysoulas, Amanda Thomson, Nikolaos Pitropakis, Pavlos Papadopoulos, Owen Lo, William J. Buchanan, George Domalis, Nikos I. Karacapilidis, Dimitris Tsakalidis, Dimitrios Tsolis

Proceedings of the Computer Security. ESORICS 2021 International Workshops, 2021

2020

A Privacy-Preserving Healthcare Framework Using Hyperledger Fabric.

Charalampos S. Stamatellis, Pavlos Papadopoulos, Nikolaos Pitropakis, Sokratis K. Katsikas, William J. Buchanan

Sensors, 2020

Monitoring Users' Behavior: Anti-Immigration Speech Detection on Twitter.

Nikolaos Pitropakis, Kamil Kokot, Dimitra Gkatzia, Robert Ludwiniak, Alexios Mylonas, Miltiadis Kandias

Mach. Learn. Knowl. Extr., 2020

Review and Critical Analysis of Privacy-preserving Infection Tracking and Contact Tracing.

William J. Buchanan, Muhammad Ali Imran, Masood Ur Rehman, Lei Zhang, Qammer H. Abbasi, Christos Chrysoulas, David Haynes, Nikolaos Pitropakis, Pavlos Papadopoulos

CoRR, 2020

Privacy-Preserving Passive DNS.

Pavlos Papadopoulos, Nikolaos Pitropakis, William J. Buchanan, Owen Lo, Sokratis K. Katsikas

Comput., 2020

A Traffic Analysis on Serverless Computing Based on the Example of a File Upload Stream on AWS Lambda.

Lisa Muller, Christos Chrysoulas, Nikolaos Pitropakis, Peter J. Barclay

Big Data Cogn. Comput., 2020

Microtargeting or Microphishing? Phishing Unveiled.

Bridget Khursheed, Nikolaos Pitropakis, Sean McKeown, Costas Lambrinoudakis

Proceedings of the Trust, Privacy and Security in Digital Business, 2020

A Distributed Trust Framework for Privacy-Preserving Machine Learning.

Will Abramson, Adam James Hall, Pavlos Papadopoulos, Nikolaos Pitropakis, William J. Buchanan

Proceedings of the Trust, Privacy and Security in Digital Business, 2020

Phishing URL Detection Through Top-level Domain Analysis: A Descriptive Approach.

Orestis Christou, Nikolaos Pitropakis, Pavlos Papadopoulos, Sean McKeown, William J. Buchanan

Proceedings of the 6th International Conference on Information Systems Security and Privacy, 2020

Privacy-preserving Surveillance Methods using Homomorphic Encryption.

William Bowditch, Will Abramson, William J. Buchanan, Nikolaos Pitropakis, Adam J. Hall

Proceedings of the 6th International Conference on Information Systems Security and Privacy, 2020

Testing And Hardening IoT Devices Against the Mirai Botnet.

Christopher Kelly, Nikolaos Pitropakis, Sean McKeown, Costas Lambrinoudakis

Proceedings of the 2020 International Conference on Cyber Security and Protection of Digital Services, 2020

2019

A taxonomy and survey of attacks against machine learning.

Nikolaos Pitropakis, Emmanouil Panaousis, Thanassis Giannetsos, Eleftherios Anastasiadis, George Loukas

Comput. Sci. Rev., 2019

Performance Analysis of TLS for Quantum Robust Cryptography on a Constrained Device.

Jon Barton, William J. Buchanan, Will Abramson, Nikolaos Pitropakis

CoRR, 2019

Towards the Creation of a Threat Intelligence Framework for Maritime Infrastructures.

Nikolaos Pitropakis, Marios Logothetis, Gennady L. Andrienko, Jason Stefanatos, Eirini Karapistoli, Costas Lambrinoudakis

Proceedings of the Computer Security - ESORICS 2019 International Workshops, 2019

2018

Towards a Security Enabled and SOA-based QoS (for the Smart Grid) Architecture.

Christos Chrysoulas, Nikolaos Pitropakis

EAI Endorsed Trans. Ind. Networks Intell. Syst., 2018

An Enhanced Cyber Attack Attribution Framework.

Nikolaos Pitropakis, Emmanouil Panaousis, Alkiviadis Giannakoulias, George Kalpakis, Rodrigo Diaz Rodriguez, Panayiotis Sarigiannidis

Proceedings of the Trust, Privacy and Security in Digital Business, 2018

Predicting Malicious Insider Threat Scenarios Using Organizational Data and a Heterogeneous Stack-Classifier.

Adam James Hall, Nikolaos Pitropakis, William J. Buchanan, Naghmeh Moradpoor

Proceedings of the IEEE International Conference on Big Data (IEEE BigData 2018), 2018

2017

Hiding in Plain Sight: A Longitudinal Study of Combosquatting Abuse.

Panagiotis Kintis, Najmeh Miramirkhani, Charles Lever, Yizheng Chen, Rosa Romero Gómez, Nikolaos Pitropakis, Nick Nikiforakis, Manos Antonakakis

Proceedings of the 2017 ACM SIGSAC Conference on Computer and Communications Security, 2017

2016

The Far Side of Mobile Application Integrated Development Environments.

Christos Lyvas, Nikolaos Pitropakis, Costas Lambrinoudakis

Proceedings of the Trust, Privacy and Security in Digital Business, 2016

2015

Detecting malicious insider threat in cloud computing environments

Nikolaos Pitropakis

PhD thesis, 2015

Behaviour reflects personality: detecting co-residence attacks on Xen-based cloud environments.

Nikolaos Pitropakis, Aggelos Pikrakis, Costas Lambrinoudakis

Int. J. Inf. Sec., 2015

Till All Are One: Towards a Unified Cloud IDS.

Nikolaos Pitropakis, Costas Lambrinoudakis, Dimitris Geneiatakis

Proceedings of the Trust, Privacy and Security in Digital Business, 2015

2014

If you want to know about a hunter, study his prey: detection of network based attacks on KVM based cloud environments.

Nikolaos Pitropakis, Dimitra Anastasopoulou, Aggelos Pikrakis, Costas Lambrinoudakis

J. Cloud Comput., 2014

Towards an augmented authenticator in the Cloud.

Nikolaos Pitropakis, Nikolaos Yfantopoulos, Dimitris Geneiatakis, Costas Lambrinoudakis

Proceedings of the 2014 IEEE International Symposium on Signal Processing and Information Technology, 2014

2013

It's All in the Cloud: Reviewing Cloud Security.

Nikolaos Pitropakis, Eleni Darra, Nikos Vrakas, Costas Lambrinoudakis

Proceedings of the 2013 IEEE 10th International Conference on Ubiquitous Intelligence and Computing and 2013 IEEE 10th International Conference on Autonomic and Trusted Computing, 2013

A Practical Steganographic Approach for Matroska Based High Quality Video Files.

Nikolaos Pitropakis, Costas Lambrinoudakis, Dimitris Geneiatakis, Dimitris Gritzalis

Proceedings of the 27th International Conference on Advanced Information Networking and Applications Workshops, 2013