Three seminars take place on Oct. 5, 2021, from 2 to 4 pm in room 31.2.85, 2 rue Conté, Paris. Topics are on blockchain-based orchestration, IIoT and beyond-5G network security.

Title : A Multi-Blockchain Approach for Securing VM Migration in Joint Cloud Systems

Speaker : Pedro B. Velloso, LIP6.

Virtual Machine (VM) migration offers several advantages for both cloud operators and cloud users. It allows server maintenance provisioning, reducing service delay, performing load balance and energy consumption management, to deal with SLA violations and security threats. The benefits of VM migration are amplified in the context of Joint clouds, in which multiple clouds owned by distinct operators might exchange VMs. However, VM migration faces some security issues specially in Joint cloud systems. Therefore, in this work we propose a novel approach to secure VM migration for Joint clouds. Therefore, we consider both local migration and inter-cloud migration. Our solution is based on a multi-blockchain system, in which each cloud keeps its own blockchain to store information about local VM migrations. In addition, cloud operators keep a consortium blockchain to store information about inter-cloud migrations. Hence, inter-blockchain communication plays an important role in our work.
In this talk, Pedro will discuss the main aspects related to inter-blockchain communications and present the proposed solution to secure VM migration in a Joint cloud environment.

Short bio:
Pedro B. Velloso is a researcher at LIP6 and an associate professor at the Electronic Engineering department of the Universidade Federal do Rio de Janeiro (UFRJ), in Brazil. He received the B.Sc. and M.Sc. degrees in Electrical Engineering from the Universidade Federal do Rio de Janeiro, Brazil, in 2001 and 2003, respectively. He received the PhD degree from the Université Pierre et Marie Curie (Paris 6) in 2008. He spent one year as a post-doc researcher at LIP6 (Sorbonne Université) in 2008/2009. He has worked as a research engineer at Bell Labs France. His research interests include, wireless networks, network measurement, multimedia communication, data science, and security.

Title : Trust and accountability in network security service management

Speaker : Yacine Anser, Cnam/Orange

Abstract : 
The 5G network is a multi-actor and multi-domain network that will have to respond to a multitude of use cases. The notion of multi-actors raises questions of responsibility, particularly with regard to contractual or legal obligations (notion of liability). In this context, the responsibility of each actor must be delimited and possible deviations must be identified. For this, a network manager who takes responsibility into account is essential. In the 5G ecosystem, several profiles and manifests implicitly coexist. Most of them have a descriptive purpose and are present to give recommendations or to simplify and automate the instantiation of a component. There is no notion of commitment linked to these profiles and manifests and they do not allow to identify the different levels of responsibility. Therefore, we propose a new type of manifest that will combine the characteristics of the existing ones and add a reliability dimension in order to make the different actors responsible. The following aims to define the manifest and to highlight the added value that it brings compared to the existing one. The manifest will serve as an input to the responsibility manager.

Short bio:
Yacine Anser est diplômé de l’INSA de Toulouse en informatique et réseaux, spécialité sécurité et sûreté de l’information, orientation Réseaux et Télécom. Il est titulaire du certificat TLSSEC (Toulouse sécurité) de l’INSA Toulouse, ENSEEIHT et ENAC. Il est inscrit en thèse au Cnam et à Orange Labs Caen.


Title : Intelligent self-adaptation of reputation driven industrial IoT systems

Speaker : Antoine Crestani, Cnam

Abstract : Connected systems are becoming prevalent in the industrial sector for a plethora of applications, from a medical standpoint to the optimization of production. It is therefore necessary to ensure their trustworthiness for privacy protection and security reasons. New threats to IoT are springing up frequently, and so estimating the reputation of a device is paramount. Existing reputation or trust estimations are either insufficient or focused on Social IoT networks, and are rarely if ever used to adapt the network. Our goal is to propose an estimation of that reputation that takes into account the widest possible spectrum of inputs that can influence reputation, such as user input, device capabilities and network activity. With that reputation estimation we will be able to provide a form of diagnosis and propose a solution to adapt a network to increase trustworthiness of all devices. To guide that adaptation we will apply software design patterns that are proven to increase reliability and efficiency.

Short bio:
Antoine Crestani graduated from IMT Mines Albi in IT Systems Engineering in July 2020, after finishing a masters internship for Total in Denmark, where he built an internal file management system. He joined the Cnam in February 2020.

Seminars on Oct. 5, 2021 – blockchain-based orchestration, IIoT, network security
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