Dr Ayman El Hajjar

Dr Ayman El Hajjar


Dr Ayman El Hajjar is a Senior Lecturer and Course Leader for the BSc Cyber Security and Forensics programme at the University of Westminster, where he also leads the Cyber Security research group. He previously served as Course Leader for the MSc Cyber Security and Forensics programme, during which the course achieved NCSC accreditation.

He holds an MSc in Wireless Networks from Queen Mary University of London and a PhD in Cryptography for the Internet of Things from Birkbeck, University of London, and is a Fellow of the Higher Education Academy. His research focuses on the security of the Internet of Things, smart infrastructures, and the use of cryptography to secure connected systems. Together with his PhD students, he explores new approaches to strengthen trust and resilience in connected systems.


Dr Ayman's research focuses on looking at how existing security protocols can be used on infrastructure-less decentralized networks such as blockchain networks and the Internet of Things.  

My main research activities are on the following topics:

  • Internet of Things security
  • Blockchain technologies for security

Smart cities and smart applications

  • IPv6 and security
  • Digital forensics

PhD Supervision: 

Jose Maria Alonso India,  active, topic "NFC implementation in IIoT/Cloud" role -Director of studies

Zahra Asghari, active, topic "Using blockchain to ensure integrity of data during transit in Internet of Things" role -Director of studies

Zeena Radwan, active, topic "Using blockchain to ensure integrity of data during transit in Internet of Things", role- Director of studies

Cihan Ucar, active, topic "Performance Analysis of Cellular IoT Systems and Networks" role- Second supervisor

Nargiza Akramova, active, topic "Securing IoT traffic against Timing based Side-Channel Attacks" role- Director of studies 

He is also interested to hear from potential PhD students in the domain of Cyber Security and Forensics. Feel free to contact me for an informal chat.


  • Cyber security

In brief

Research areas

Network Security, Internet of Things , Network Forensics and Cryptography

Skills / expertise

Penetration testing and Digital forensics and auditing

Supervision interests

Internet of Things Security, Network Security, Network Forensics, Key distribution and Cryptography