Dr. Harry Manifavas

Associate Professor in Computing Security
Department of Electrical Engineering and Computing Studies 


Ph.D. Computer Science, University of Cambridge, UK, 2002
M.Sc. Communication Systems Engineering, University of Kent, UK, 1994
B.Sc. Computer Science, University of Crete, Greece, 1993

Research Interests

Dr Manifavas’ research area is cryptography, network and information security. His current areas of interest include embedded systems security and dependability, lightweight cryptography, security metrics, security composition, and the challenges that arise with the wider adoption of ambient intelligence/ubiquitous computing applications. Such challenges also include the various privacy and trust issues that must be addressed in the context of the Internet of Things and smart infrastructures, as well as the pertinent security management issues. He has published more than 50 papers in international journals and conferences and has attracted more than 800 citations to his research work.
Dr Manifavas is involved in security assessment and ISMS (information security management). He enjoys working on industry-related tasks being an IRCA certified ISMS auditor. He has received training by Terena on how to implement and run a CSIRT (Computer Security Incident Response Team). He has worked with ENISA (European Union Agency for Network and Information Security) for two position papers and participated in a CyberWar exercise “PANOPTHS 2011”. He has spent time in the banking sector working as a security engineer and consultant. Finally, he has worked as technical manager or senior researcher in a number of EU funded research projects. 

Select Publications


"A Review of Lightweight Block Ciphers", G. Hatzivasilis, K. Fysarakis, I. Papaefstathiou and C. Manifavas, Journal of Cryptographic Engineering (JCEN), pp. 1-44, Springer, Apr. 2017 (DOI: 10.1007/s13389-017-0160-y)


“Which IoT Protocol? Comparing standardized approaches over a common M2M application”, K. Fysarakis, O. Soultatos, I. Askoxylakis, C. Manifavas, I. Papaefstathiou and V. Katos, 2016 IEEE Global Communications Conference (GLOBECOM 2016), Washington, DC, USA, December 4-8, 2016 (DOI: 10.1109/GLOCOM.2016.7842383)


"Software Security, Privacy and Dependability: Metrics and Measurement", G. Hatzivasilis, I. Papaefstathiou and C. Manifavas, IEEE Software, vol. 33, no. 4, pp. 46-54, Jul.-Aug. 2016 (DOI: 10.1109/MS.2016.61)


"XSACd: Cross-domain Resource Sharing & Access Control for Smart Environments", K. Fysarakis, O. Sultatos, C. Manifavas, I. Papaefstathiou, I. Askoxylakis, Special issue on Security, Privacy and Trust of the User-centric Solutions, Future Generation Computer Systems, Elsevier, Jun. 2016 (DOI:10.1016/j.future.2016.05.023)


“RtVMF − A secure Real-time Vehicle Management Framework with critical incident response”, K. Fysarakis, G. Hatzivasilis, C. Manifavas and I. Papaefstathiou, IEEE Pervasive Computing, Special Issue on Smart Vehicle Spaces, vol.15, no.1, pp.22-30, Jan.-Mar. 2016 (DOI: 10.1109/MPRV.2016.15)


"A survey of lightweight stream ciphers for embedded systems", C. Manifavas, G. Hatzivasilis, K. Fysarakis and I. Papaefstathiou, Security and Communication Networks,  Wiley, Dec. 2015 (DOI: 10.1002/sec.1399)


“Node.DPWS: Efficient Web Services for the IoT”, K. Fysarakis, D. Mylonakis, C. Manifavas and I. Papaefstathiou, IEEE Software, Nov. 2015 (DOI: 10.1109/MS.2015.155)


"Policy-controlled Authenticated Access to LLN-connected Healthcare Resources”, K. Rantos, K. Fysarakis, C. Manifavas and I. Askoxylakis, IEEE Systems Journal, Jul. 2015 (DOI: 10.1109/JSYST.2015.2450313)


"Embedded Systems Security: A Survey of EU Research Efforts", C. Manifavas, K. Fysarakis, A. Papanikolaou and I. Papaefstathiou, Security and Communication Networks,  Wiley, Dec. 2014 (DOI: 10.1002/sec.1151)


“How effective is your security awareness program? - An evaluation methodology”, K. Rantos, K. Fysarakis and C. Manifavas, Information Security Journal: A Global Perspective, Taylor Francis, vol. 21, issue 6, Dec. 2012 (DOI: 10.1080/19393555.2012.747234)


"A New Family of Authentication Protocols", R. Anderson, F. Bergadano, B. Crispo, J-H Lee, C. Manifavas, and R. Needham, ACM SIGOPS Operating Systems Review, 32(4), pp. 9-20, Oct. 1998 (DOI: 10.1145/302350.302353)


"Chameleon - A New Kind of Stream Cipher", R. Anderson and C. Manifavas, 4th Fast Software Encryption Workshop (FSE 1997), 20-22 Jan. 1997, Lecture Notes in Computer Science 1267, pp. 107-113, Springer 1997 (DOI: 10.1007/BFb0052339)


"NetCard - A Practical Electronic Cash Scheme", R. Anderson, C. Manifavas, and C. Sutherland, 1996 (4th) Cambridge Workshop on Security Protocols, 10-12 Apr. 1996, Lecture Notes in Computer Science 1189, pp. 49-57, Springer 1997 (DOI: 10.1007/3-540-62494-5_4)