Chaire Cyber CNI

Chaire Cyber CNI – Cybersecurity for Critical Networked Infrastructures

[RU2/22] Manel SMINE : Software-defined Security for Network Function Virtualization

On Oct 17, 2022, our PhD student Manel SMINE presented her latest results regarding “Software-defined Security for Network Function Virtualization“. This presentation took place during the research update fall 2022 event of the chair Cybersecurity for Critical Networked Infrastructures ( at the SNCF Head Office. You find more infos on our website

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To see the video, click on this link:


Network Functions Virtualization (NFV) is a network architecture concept which virtualizes network functions (firewalling, DNS, intrusion detection, etc.). It creates a Virtualized Network Function (VNF) instance that is deployed over a virtualized infrastructure. NFV is introduced as a new methodology that offers several advantages such as the optimization of the resources and the improvement of network efficiency and performance. Despite those advantages, security concerns are an important obstacle for a wide adoption of NFV. New threats and vulnerabilities are inevitably introduced. The objective in this work is to enhance the security of VNF network services by controlling the communication between the different components of the network service through the deployment of access control policies.

About Manel Smine

My name is Manel Smine, and I did a master’s degree in “Cloud Computing and Services” in 2017. After that I did an internship in IMT-Atlantique for six months. My experience in programming, software analysis, and IT technical management helped me to master several essential technologies such as developing information systems, software analysis, and design, virtualization, and storage techniques. Currently, I am enrolling in the Ph.D. program, entitled “Software-defined Security for Network Function Virtualization” at IMT Atlantique Rennes.

About Research Update

The Research Updates happen once per semester. They are our big status event where our PhD students, PostDocs, and Engineers present their progress, current works, and next challenges. The research update is the perfect opportunity for getting an overview on and discussing what is going on at the chair.

About the chair Cybersecurity of Critical Networked Infrastructures (

The Cyber CNI Chair at IMT Atlantique does research, innovation, and teaching in the field of cybersecurity for critical networked infrastructures. Such infrastructures include industrial processes, financial systems, building automation, energy networks, water treatment plants, or transportation.

The chair covers the full stack from sensors and actuators and their signals over industrial control systems, distributed services at the edge or cloud, to user interfaces with collaborative Mixed Reality, and security policies. The chair currently hosts 9 PhD students, 4 PostDocs, 11 Professors, 1 engineer, and 1 internship student.

The chair runs a large testbed that enables applied research together with the industry partners. The industry partners of the current third funding round are Airbus, BNP Paribas, EDF, and SNCF. The chaire is located in Brittany, France. Brittany is the cybersecurity region number 1 in France. The chair Cyber CNI is strongly embedded in the cybersecurity ecosystem through its partnerships with the Pôle d’Excellence Cyber (PEC) and the Brittany Region.

The chair provides a unique environment for cybersecurity research with lots of development possibilities.

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