Publications (97)
Return-Map Cryptanalysis Revisited
Shujun Li, Guanrong Chen, Gonzalo Ãlvarez
Analysing Safety Risks in LLMs Fine-Tuned with Pseudo-Malicious Cyber Security Data
Adel ElZemity, Budi Arief, Shujun Li
Deepfake: Definitions, Performance Metrics and Standards, Datasets and Benchmarks, and a Meta-Review
Enes Altuncu, Virginia N. L. Franqueira, Shujun Li
Security and Privacy Perspectives of People Living in Shared Home Environments
Nandita Pattnaik, Shujun Li, Jason R. C. Nurse
LADFA: A Framework of Using Large Language Models and Retrieval-Augmented Generation for Personal Data Flow Analysis in Privacy Policies
Haiyue Yuan, Nikolay Matyunin, Ali Raza +1
An oracle-based attack on CAPTCHAs protected against oracle attacks
Carlos Javier Hernández-Castro, MarÃa D. R-Moreno, David F. Barrero +1
Cryptanalysis of an Encryption Scheme Based on Blind Source Separation
Shujun Li, Chengqing Li, Kwok-Tung Lo +1
Lorenz System Parameter Determination and Application to Break the Security of Two-channel Chaotic Cryptosystems
A. B. Orue, G. Alvarez, M. Romera +3
A New Lorenz System Parameter Determination Method and Applications
A. Orue, G. Alvarez, G. Pastor +3
Improving Performance of Automatic Keyword Extraction (AKE) Methods Using PoS-Tagging and Enhanced Semantic-Awareness
Enes Altuncu, Jason R. C. Nurse, Yang Xu +2
Recovering Sign Bits of DCT Coefficients in Digital Images as an Optimization Problem
Ruiyuan Lin, Sheng Liu, Jun Jiang +3
Small, Free, and Effective: Orchestrating Open-Weight Small Language Models to Outperform Single LLM for Malware Analysis
Adel ElZemity, Shujun Li, Budi Arief
OR-Benchmark: An Open and Reconfigurable Digital Watermarking Benchmarking Framework
Hui Wang, Anthony TS Ho, Shujun Li
Characterizing Scam-Driven Human Trafficking Across Chinese Borders and Online Community Responses on RedNote
Jiamin Zheng, Yue Deng, Jessica Chen +3
Does Travel Stage Matter? How Leisure Travellers Perceive Their Privacy Attitudes Towards Personal Data Sharing Before, During, and After Travel
Haiyue Yuan, Shujun Li, Fatima Gillani +1
Baptista-type chaotic cryptosystems: Problems and countermeasures
Shujun Li, Guanrong Chen, Kwok-Wo Wong +2
FACTors: A New Dataset for Studying the Fact-checking Ecosystem
Enes Altuncu, Can BaÅkent, Sanjay Bhattacherjee +2
Recovering Missing Coefficients in DCT-Transformed Images
Shujun Li, Andreas Karrenbauer, Dietmar Saupe +1
CyberLLMInstruct: A Pseudo-malicious Dataset Revealing Safety-performance Trade-offs in Cyber Security LLM Fine-tuning
Adel ElZemity, Budi Arief, Shujun Li
Perspectives of Non-Expert Users on Cyber Security and Privacy: An Analysis of Online Discussions on Twitter
Nandita Pattnaik, Shujun Li, Jason R. C. Nurse
Chosen-Plaintext Cryptanalysis of a Clipped-Neural-Network-Based Chaotic Cipher
Chengqing Li, Shujun Li, Dan Zhang +1
Cryptanalysis of an image encryption scheme based on a new total shuffling algorithm
David Arroyo, Chengqing Li, Shujun Li +2
Band Prompting Aided SAR and Multi-Spectral Data Fusion Framework for Local Climate Zone Classification
Haiyan Lan, Shujun Li, Mingjie Xie +6
Cryptanalysis of two chaotic encryption schemes based on circular bit shift and XOR operations
Chengqing Li, Shujun Li, Gonzalo Ãlvarez +2
Local Differential Privacy is Not Enough: A Sample Reconstruction Attack against Federated Learning with Local Differential Privacy
Zhichao You, Xuewen Dong, Shujun Li +3
Breaking a chaos-based secure communication scheme designed by an improved modulation method
Shujun Li, Gonzalo Ãlvarez, Guanrong Chen
Cryptanalysis of a computer cryptography scheme based on a filter bank
David Arroyo, Chengqing Li, Shujun Li +1
On the security of a new image encryption scheme based on chaotic map lattices
David Arroyo, Rhouma Rhouma, Gonzalo Alvarez +2
On the Design of Perceptual MPEG-Video Encryption Algorithms
Shujun Li, Guanrong Chen, Albert Cheung +2
On the Security of the Yi-Tan-Siew Chaos-Based Cipher
Shujun Li, Guanrong Chen, Xuanqin Mou
APIOT: Autonomous Vulnerability Management Across Bare-Metal Industrial OT Networks
Adel ElZemity, Budi Arief, Shujun Li +6
Cryptanalysis of a new chaotic cryptosystem based on ergodicity
David Arroyo, Gonzalo Alvarez, Shujun Li +2
Evaluating Two Determinants
Shujun Li
aedFaCT: Scientific Fact-Checking Made Easier via Semi-Automatic Discovery of Relevant Expert Opinions
Enes Altuncu, Jason R. C. Nurse, Meryem Bagriacik +4
Inherent Frequency and Spatial Decomposition of the Lorenz Chaotic Attractor
Gonzalo Ãlvarez, Shujun Li, Jinhu Lü +1
Detecting Machine-Generated Texts: Not Just "AI vs Humans" and Explainability is Complicated
Jiazhou Ji, Ruizhe Li, Shujun Li +6
The Impact of Privacy and Security Attitudes and Concerns of Travellers on Their Willingness to Use Mobility-as-a-Service Systems
Maria Sophia Heering, Haiyue Yuan, Shujun Li
Lost in the Digital Wild: Hiding Information in Digital Activities
Shujun Li, Anthony T. S. Ho, Zichi Wang +1
Behind the Mask: A Computational Study of Anonymous' Presence on Twitter
Keenan Jones, Jason R. C. Nurse, Shujun Li
Dynamic Analysis of Digital Chaotic Maps via State-Mapping Networks
Chengqing Li, Bingbing Feng, Shujun Li +2
A Systematic Literature Review of the Tension between the GDPR and Public Blockchain Systems
Rahime Belen-Saglam, Enes Altuncu, Yang Lu +1
A Graph-Based Model for Vehicle-Centric Data Sharing Ecosystem
Haiyue Yuan, Ali Raza, Nikolay Matyunin +2
When Graph Convolution Meets Double Attention: Online Privacy Disclosure Detection with Multi-Label Text Classification
Zhanbo Liang, Jie Guo, Weidong Qiu +2
Graphical Models of False Information and Fact Checking Ecosystems
Haiyue Yuan, Enes Altuncu, Shujun Li +1
A Differential Cryptanalysis of Yen-Chen-Wu Multimedia Cryptography System (MCS)
Chengqing Li, Shujun Li, Kowk-Tung Lo +1
The Shadowy Lives of Emojis: An Analysis of a Hacktivist Collective's Use of Emojis on Twitter
Keenan Jones, Jason R. C. Nurse, Shujun Li
PassTSL: Modeling Human-Created Passwords through Two-Stage Learning
Yangde Wang, Haozhang Li, Weidong Qiu +2
A Survey of User Perspectives on Security and Privacy in a Home Networking Environment
Nandita Pattnaik, Shujun Li, Jason R. C. Nurse
Analog Chaos-based Secure Communications and Cryptanalysis: A Brief Survey
Shujun Li, Gonzalo Alvarez, Zhong Li +1
Cyber Security and Online Safety Education for Schools in the UK: Looking through the Lens of Twitter Data
Jamie Knott, Haiyue Yuan, Matthew Boakes +1
Using LLMs for Automated Privacy Policy Analysis: Prompt Engineering, Fine-Tuning and Explainability
Yuxin Chen, Peng Tang, Weidong Qiu +1
From Data Disclosure to Privacy Nudges: A Privacy-aware and User-centric Personal Data Management Framework
Yang Lu, Shujun Li, Athina Ioannou +1
Cyber Security Educational Games for Children: A Systematic Literature Review
Temesgen Kitaw Damenu, İnci Zaim Gökbay, Alexandra Covaci +1
Some hints for the design of digital chaos-based cryptosystems: lessons learned from cryptanalysis
David Arroyo, Gonzalo Alvarez, Shujun Li
Proof of Swarm Based Ensemble Learning for Federated Learning Applications
Ali Raza, Kim Phuc Tran, Ludovic Koehl +1
When Chaos Meets Computers
Shujun Li
A Survey of AI-Related Cyber Security Risks and Countermeasures in Mobility-as-a-Service
Kai-Fung Chu, Haiyue Yuan, Jinsheng Yuan +3
An Improved DC Recovery Method from AC Coefficients of DCT-Transformed Images
Shujun Li, Junaid Jameel Ahmad, Dietmar Saupe +1
Out of the Shadows: Analyzing Anonymous' Twitter Resurgence during the 2020 Black Lives Matter Protests
Keenan Jones, Jason R. C. Nurse, Shujun Li
Breaking a modified substitution-diffusion image cipher based on chaotic standard and logistic maps
Chengqing Li, Shujun Li, Kwok-Tung Lo
A Comprehensive Study on GDPR-Oriented Analysis of Privacy Policies: Taxonomy, Corpus and GDPR Concept Classifiers
Peng Tang, Xin Li, Yuxin Chen +5
Designing ECG Monitoring Healthcare System with Federated Transfer Learning and Explainable AI
Ali Raza, Kim Phuc Tran, Ludovic Koehl +1
Permutation Polynomials modulo m
Shujun Li
"Flow Size Difference" Can Make a Difference: Detecting Malicious TCP Network Flows Based on Benford's Law
Aamo Iorliam, Santosh Tirunagari, Anthony T. S. Ho +3
Visualising Personal Data Flows: Insights from a Case Study of Booking.com
Haiyue Yuan, Matthew Boakes, Xiao Ma +2
Breaking a new substitution-diffusion based image cipher using chaotic standard and logistic maps
Chengqing Li, Shujun Li, Kwok-Tung Lo
The Use of Public Data and Free Tools in National CSIRTs' Operational Practices: A Systematic Literature Review
Sharifah Roziah Binti Mohd Kassim, Shujun Li, Budi Arief
It was hard to find the words: Using an Autoethnographic Diary Study to Understand the Difficulties of Smart Home Cyber Security Practices
Sarah Turner, Jason R. C. Nurse, Shujun Li
When Human cognitive modeling meets PINs: User-independent inter-keystroke timing attacks
Ximing Liu, Yingjiu Li, Robert H. Deng +2
Cryptanalysis of an MPEG-Video Encryption Scheme Based on Secret Huffman Tables
Shujun Li, Guanrong Chen, Albert Cheung +1
Breaking a chaos-noise-based secure communication scheme
Shujun Li, Gonzalo Ãlvarez, Guanrong Chen +1
A Comprehensive Survey of Natural Language Generation Advances from the Perspective of Digital Deception
Keenan Jones, Enes Altuncu, Virginia N. L. Franqueira +2
Security Problems with Improper Implementations of Improved FEA-M
Shujun Li, Kwok-Tung Lo
Using Anomaly Detection to Detect Poisoning Attacks in Federated Learning Applications
Ali Raza, Shujun Li, Kim-Phuc Tran +2
PassViz: A Visualisation System for Analysing Leaked Passwords
Sam Parker, Haiyue Yuan, Shujun Li
Breaking an encryption scheme based on chaotic Baker map
Gonzalo Alvarez, Shujun Li
Security analysis of communication system based on the synchronization of different order chaotic systems
G. Alvarez, L. Hernandez, J. Munoz +2
Everyone's Privacy Matters! An Analysis of Privacy Leakage from Real-World Facial Images on Twitter and Associated User Behaviors
Yuqi Niu, Weidong Qiu, Peng Tang +5
Null Polynomials modulo m
Shujun Li
Cryptanalysis of a chaotic block cipher with external key and its improved version
Chengqing Li, Shujun Li, Gonzalo Ãlvarez +2
Estimating short-time period to break different types of chaotic modulation based secure communications
Gonzalo Alvarez, Shujun Li
On the security defects of an image encryption scheme
Chengqing Li, Shujun Li, Muhammad Asim +3
Breaking projective chaos synchronization secure communication using filtering and generalized synchronization
Gonzalo Alvarez, Shujun Li, F. Montoya +2
When Googling it doesn't work: The challenge of finding security advice for smart home devices
Sarah Turner, Jason R. C. Nurse, Shujun Li
On the security of the Yen-Guo's domino signal encryption algorithm (DSEA)
Chengqing Li, Shujun Li, Der-Chyuan Lou +1
Are You Robert or RoBERTa? Deceiving Online Authorship Attribution Models Using Neural Text Generators
Keenan Jones, Jason R. C. Nurse, Shujun Li
Adaptive Backdoor Attacks with Reasonable Constraints on Graph Neural Networks
Xuewen Dong, Jiachen Li, Shujun Li +4
Lightweight Transformer in Federated Setting for Human Activity Recognition
Ali Raza, Kim Phuc Tran, Ludovic Koehl +3
Identity Deepfake Threats to Biometric Authentication Systems: Public and Expert Perspectives
Shijing He, Yaxiong Lei, Zihan Zhang +4
Algorithm Selection for Image Quality Assessment
Markus Wagner, Hanhe Lin, Shujun Li +1
Cryptanalysis of an Image Encryption Scheme Based on a Compound Chaotic Sequence
Chengqing Li, Shujun Li, Guanrong Chen +1
Cryptographic requirements for chaotic secure communications
Gonzalo Alvarez, Shujun Li
"I know myself better, but not really greatly": How Well Can LLMs Detect and Explain LLM-Generated Texts?
Jiazhou Ji, Jie Guo, Weidong Qiu +6
Cryptanalysis of a family of self-synchronizing chaotic stream ciphers
David Arroyo, Gonzalo Alvarez, Jose Maria Amigo +1
Support or Refute: Analyzing the Stance of Evidence to Detect Out-of-Context Mis- and Disinformation
Xin Yuan, Jie Guo, Weidong Qiu +2
"You Just Assume It Is In There, I Guess": UK Families' Application And Knowledge Of Smart Home Cyber Security
Sarah Turner, Nandita Pattnaik, Jason R. C. Nurse +1
SE#PCFG: Semantically Enhanced PCFG for Password Analysis and Cracking
Yangde Wang, Weidong Qiu, Peng Tang +2