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Research Seminar on 27.03.2019 16:00
Room 03.07.023

Using the IOMMU for Safe and Secure User Space Network Drivers

Final talk for Master's Thesis
Stefan Huber (Emmerich)

08.04.2019
2019 IFIP/IEEE International Symposium on Integrated Network Management

Data Querying and Access Control for Secure Multiparty Computation

Authors: Marcel von Maltitz, Dominik Bitzer, Georg Carle

01.04.2019
International Symposium on Integrated Network Management (IM)

Giving IoT Edge Services an Identity and Changeable Attributes

The Internet of Things (IoT) is managed by soft- ware. This software interfaces our physical surroundings. For a successful deployment of the IoT, providing adequate service security is essential. However, with its distributed heterogeneous nature, and its different stakeholders in the development process, securing IoT services is challenging. In this work we how certificates can be used to give services an identity for authentication. We show how the mechanism can be used to securely add attributes to the service executable. To reflect the dynamic distributed nature of the IoT, we show how the securely added attributes can be changed at runtime and how security policies can be enforced even on distributed loosely coupled IoT nodes. Our solution is based on pinning X.509v3 certificates to the service executables, and autonomously managing short certificate lifetimes for ensuring the desired security policies within guaranteed time limits. Besides the feasibility of our approach we asses the resulting traffic of the renewals and the power consumption of this process.

Authors: Marc-Oliver Pahl, Lorenzo Donini

01.04.2019
IM 2019 - IEEE/IFIP Workshop Dissect 2019

Adaptive Network Management for Safety-Critical Systems

Authors: Cora Perner, Holger Kinkelin, Georg Carle

01.04.2019
Proceedings of the 38th IEEE International Conference on Computer Communications

DeepTMA: Predicting Effective Contention Models for Network Calculus using Graph Neural Networks (accepted)

Authors: Fabien Geyer, Steffen Bondorf

01.04.2019
IM 2019 - IEEE/IFIP Workshop HotNSM 2019

Multi-party authorization and conflict mediation for decentralized configuration management processes

Authors: Holger Kinkelin, Heiko Niedermayer, Marc-Oliver Müller, Georg Carle

01.04.2019
International Symposium on Integrated Network Management (IM)

A Modular Distributed IoT Service Discovery

The Internet of Things (IoT) consists of collaborating microservices (\muSs). Some services offer interfaces to manage entities, others implement orchestration logic, yet others interface users. Dynamic binding of services is fundamental to enable portability and adaptivity of \muSs to their local (service) context. The central challenge of service composition is service discovery. Service discovery has been investigated a lot in the past. However, the focus was on low ISO/ OSI layer technologies such as UPNP or Bonjour. Implementing the IoT as a Service-Oriented Architecture (SOA) of \muSs requires a significantly more feature rich discovery on the application layer. A major challenge here is that the IoT is more heterogeneous and dynamic than classic IT SOA systems. The IoT therefore requires a novel service discovery. We present a semantically rich yet simple to use IoT service discovery mechanism. It consists of distributed so called search providers that implement semantic directories, and a federation mechanism that allows mapping complex search queries to simple search provider modules. Our approach reflects the heterogeneity of managed entities, and the dynamic adaptivity required to reflect the continuous changes of IoT spaces. We evaluate our solution qualitatively with a user study and quantitatively via latency measurements.

Authors: Marc-Oliver Pahl, Stefan Liebald

01.04.2019
Hot Topics in Network and Service Management (HotNSM) at International Symposium on Integrated Network Management (IM)

Machine-learning based IoT Data Caching

Authors: Marc-Oliver Pahl, Stefan Liebald, Lars Wüstrich

01.04.2019
Hot Topics in Network and Service Management (HotNSM) at International Symposium on Integrated Network Management (IM)

Multi-Tenant IoT Service Management towards an IOT App Economy

Authors: Marc-Oliver Pahl

01.03.2019
2019 International Conference on Networked Systems (NetSys) (NetSys’19)

DEMO: VSL: A Data-Centric Internet of Things Overlay

This paper gives an overview on the Virtual State Layer (VSL). The VSL is a data-centric middleware that unifies the access to distributed heterogeneous IoT components in a secure way. It thereby solves key challenge of today’s IoT namely reducing the complexity, enabling interoperability, and providing security-by-design. We show the performance of our solution and illustrate its practical use in a demo setup and plot.

Authors: Marc-Oliver Pahl, Stefan Liebald, Christian Lübben

01.03.2019
2019 International Conference on Networked Systems (NetSys) (NetSys’19)

Information-Centric IoT Middleware Overlay: VSL

The oil of the Internet of Things (IoT) is data. Consequently a data-centric or name-based design fits the challenges of the IoT very well. Especially when looking at edge-based approaches introducing a data-centric Internet architecture becomes possible as it does not require any changes at the core. Scalability and latency issues also play a smaller role at the edge, leveraging some problems of data-centric architectures. In this paper we present an edge-based data-centric architecture for the Internet of things (IoT). Our system architecture consists of distributed computing nodes. We show how they can manage themselves, forming an overlay that enables data exchange between IoT services running on any node. The core of our abstraction is a hierarchical addressing scheme. We show how it enables complex service discovery. A key feature of our solution is using data as interface to services. We show how we solve the challenge of unifying interfaces. We evaluate our solution in three perspectives: usability, performance in terms of latency, and scalability in terms of throughput.

Authors: Marc-Oliver Pahl, Stefan Liebald

03.07.2018
IEEE ComSoc ITC Best Paper Award 2017

I8 team awarded IEEE ComSoc ITC Best Paper Award for 2017

A team from TUM's Chair of Network Architectures and Services have been awarded the IEEE ComSoc ITC Best Paper Award 2017. This award honors the best paper in the set of IEEE ComSoc ITC sponsored conferences ...

27.03.2018
PAM'18: Best Paper Award

Best Paper Award at PAM 2018

The publication "In Log We Trust: Revealing Poor Security Practices with Certificate Transparency Logs and Internet Measurements" has been awarded with the Best Paper Award at the Passive and Active Measurement Conference (PAM'18). The publication is the result of an international ...

09.11.2017
IMC'17: Community Contribution Award

Community Contribution Award at IMC 2017

The publication "Mission Accomplished? HTTP Security After DigiNotar" has been awarded with the Community Contribution Award at the ACM SIGCOMM Internet Measurement Conference (IMC'17). The publication is an international collaboration with Johanna Amann (ICSI), Lexi Brent (University of Sydney) and Ralph ...

18.10.2017
MoonGen wins the Applied Networking Research Prize

Our open source packet generator MoonGen won the Applied Networking Research Prize (ANRP)! The Internet Research Task Force (IRTF) awards this prize for applied networking research that is relevant for standardization efforts and research transitioning into shipping Internet products. The ANRP prize will be awarded at the IETF-100 meeting ...

13.07.2017
AIMS'17: Best Paper Award

I8 team awarded Best Paper Award at AIMS 2017

A team from TUM's Chair of Network Architectures and Services has been awarded with the Best Paper Award at the "11th International Conference on Autonomous Infrastructure, Management and Security" (AIMS 2017). AIMS'17 Web Page

The ...