Ransomware: Analysing the Impact on Windows Active Directory Domain Services
McDonald, G., Papadopoulos, P., Pitropakis, N., Ahmad, J., & Buchanan, W. J. (2022)
Ransomware: Analysing the Impact on Windows Active Directory Domain Services. Sensors, 22(3), Article 953. https://doi.org/10.3390/s22030953
Ransomware has become an increasingly popular type of malware across the past decade and continues to rise in popularity due to its high profitability. Organisations and enter...
Deriving ChaCha20 Key Streams From Targeted Memory Analysis
McLaren, P., Buchanan, W. J., Russell, G., & Tan, Z. (2019)
Deriving ChaCha20 Key Streams From Targeted Memory Analysis. Journal of Information Security and Applications, 48, https://doi.org/10.1016/j.jisa.2019.102372
There can be performance and vulnerability concerns with block ciphers, thus stream ciphers can used as an alternative. Although many symmetric key stream ciphers are fairly r...
The Challenges of Investigating Cryptocurrencies and Blockchain Related Crime
Dyson, S., Buchanan, W., & Bell, L. (2018)
The Challenges of Investigating Cryptocurrencies and Blockchain Related Crime. The Journal of the British Blockchain Association, 1(2), 1-6. https://doi.org/10.31585/jbba-1-2-%288%292018
We increasingly live in a world where there is a balance between the rights to privacy and the requirements for consent, and the rights of society to protect itself. Within th...
A framework for live host-based Bitcoin wallet forensics and triage
Holmes, A., & Buchanan, W. J. (2023)
A framework for live host-based Bitcoin wallet forensics and triage. Forensic Science International: Digital Investigation, 44, Article 301486. https://doi.org/10.1016/j.fsidi.2022.301486
Organised crime and cybercriminals use Bitcoin, a popular cryptocurrency, to launder money and move it across borders with impunity. The UK and other countries have legislatio...
Evaluation of Live Forensic Techniques in Ransomware Attack Mitigation
Davies, S. R., Macfarlane, R., & Buchanan, W. J. (2020)
Evaluation of Live Forensic Techniques in Ransomware Attack Mitigation. Forensic Science International: Digital Investigation, 33, https://doi.org/10.1016/j.fsidi.2020.300979
Ransomware continues to grow in both scale, cost, complexity and impact since its initial discovery nearly 30 years ago. Security practitioners are engaged in a continual "arm...
MRC4: A Modified RC4 Algorithm using Symmetric Random Function Generator for Improved Cryptographic Features
Saha, R., Geetha, G., Kumar, G., Kim, T., & Buchanan, W. J. (2019)
MRC4: A Modified RC4 Algorithm using Symmetric Random Function Generator for Improved Cryptographic Features. IEEE Access, 7, 172045-172054. https://doi.org/10.1109/access.2019.2956160
The Rivest Cipher 4 (RC4) has been one of the most popular stream ciphers for providing symmetric key encryption, and is now proposed as an efficient cipher within light-weigh...
Privacy-Preserving Passive DNS
Papadopoulos, P., Pitropakis, N., Buchanan, W. J., Lo, O., & Katsikas, S. (2020)
Privacy-Preserving Passive DNS. Computers, 9(3), https://doi.org/10.3390/computers9030064
The Domain Name System (DNS) was created to resolve the IP addresses of web servers to easily remembered names. When it was initially created, security was not a major concern...
Lightweight cryptography methods
Buchanan, W. J., Li, S., & Asif, R. (2018)
Lightweight cryptography methods. Journal of Cyber Security Technology, 1(3-4), 187-201. https://doi.org/10.1080/23742917.2017.1384917
While our conventional cryptography methods, such for AES (encryption), SHA-256 (hashing) and RSA/Elliptic Curve (signing), work well on systems which have reasonable processi...
Protecting mobile agents from external replay attacks
Garrigues, C., Migas, N., Buchanan, W., Robles, S., & Borrell, J. (2009)
Protecting mobile agents from external replay attacks. Journal of Systems and Software, 82(2), 197-206. https://doi.org/10.1016/j.jss.2008.05.018
This paper presents a protocol for the protection of mobile agents against external replay attacks. This kind of attacks are performed by malicious platforms when dispatching ...
A novel privacy preserving method for the location tracking of mobile devices
Buchanan, W. J., & Kwecka, Z. (2011)
A novel privacy preserving method for the location tracking of mobile devices. Wireless Networks,
Two of the major changes within computing, at the present time, are the move towards serviceoriented architectures and the increasing usage of mobile devices to access these s...