Tauber, Markus

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Tauber, Markus
Akademische Titel
Ehemaliger FH Mitarbeiter
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Scopus Author ID
37058207900
Status
exstaff

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  • No Thumbnail Available
    Publication
    Application Level Energy and Performance Measurements in a Wireless LAN
    (2011)
    Tauber, Markus 
    ;
    Bhatti, S. N. 
    ;
    Yu, Y. 
    We present an experimental evaluation of energy usage and performance in a wireless LAN cell based on a test bed using the 5 GHz ISM band for 802.11a and 802.11n. We have taken an application-level approach, by varying the packet size and transmission rate at the protocol level and evaluating energy usage across a range of application transmission rates using both large and small packet sizes. We have observed that both the application's transmission rate and the packet size have an impact on energy efficiency for transmission in our test bed. We also included in our experiments evaluation of the energy efficiency of emulations of YouTube and Skype flows, and a comparison with Ethernet transmissions.
      141  1Scopus© Citations 24
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    Publication
    Towards a Security Cost Model for Cyber-Physical Systems
    (IEEE, 2019-01)
    Ivkić, Igor 
    ;
    Mauthe, Andreas 
    ;
    Tauber, Markus 
    In times of Industry 4.0 and cyber-physical systems (CPS) providing security is one of the biggest challenges. A cyber attack launched at a CPS poses a huge threat, since a security incident may affect both the cyber and the physical world. Since CPS are very flexible systems, which are capable of adapting to environmental changes, it is important to keep an overview of the resulting costs of providing security. However, research regarding CPS currently focuses more on engineering secure systems and does not satisfactorily provide approaches for evaluating the resulting costs. This paper presents an interaction-based model for evaluating security costs in a CPS. Furthermore, the paper demonstrates in a use case driven study, how this approach could be used to model the resulting costs for guaranteeing security.
      468  1Scopus© Citations 4
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    Publication
    A Multi-Layer and Multi-Tenant Cloud Assurance Evaluation Methodology
    (2015)
    Hudic, A. 
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    Tauber, Markus 
    ;
    Loruenser, T. 
    ;
    Krotsiani, M. 
    ;
    Spanoudakis, G. 
    ;
    Mauthe, A. 
    ;
    Weippl, E. 
    Data with high security requirements is being processed and stored with increasing frequency in the Cloud. To guarantee that the data is being dealt in a secure manner we investigate the applicability of Assurance methodologies. In a typical Cloud environment the setup of multiple layers and different stakeholders determines security properties of individual components that are used to compose Cloud applications. We present a methodology adapted from Common Criteria for aggregating information reflecting the security properties of individual constituent components of Cloud applications. This aggregated information is used to categorise overall application security in terms of Assurance Levels and to provide a continuous assurance level evaluation. It gives the service owner an overview of the security of his service, without requiring detailed manual analyses of log files.
      153  2Scopus© Citations 8
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    Publication
    Security Vulnerabilities And Risks In Industrial Usage Of Wireless Communication
    (2014-09-16)
    Plosz, S. 
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    Lesjak, C. 
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    Pereira, N. 
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    Tauber, Markus 
    ;
    Ruprechter, T. 
    Due to its availability and low cost, the use of wireless communication technologies increases in domains beyond the originally intended usage areas, e.g. M2M communication in industrial applications. Such industrial applications often have specific security requirements. Hence, it is important to understand the characteristics of such applications and evaluate the vulnerabilities bearing the highest risk in this context. We present a comprehensive overview of security issues and features in existing WLAN, NFC and ZigBee standards, investigating the usage characteristics of these standards in industrial environments. We apply standard risk assessment methods to identify vulnerabilities with the highest risk across multiple technologies. We present a threat catalogue, conclude in which direction new mitigation methods should progress and how security analysis methods should be extended to meet requirements in the M2M domain.
      135  1Scopus© Citations 24
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    Publication
    Towards a Security Baseline for IaaS-Cloud Back-Ends in Industry 4.0
    (IEEE (UK), 2017-12)
    Bauer, Elisabeth 
    ;
    Schluga, Oliver 
    ;
    Maksuti, Silia 
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    Bicaku, Ani 
    ;
    Hofbauer, David 
    ;
    Ivkić, Igor 
    ;
    Wöhrer, Alexander 
    ;
    Tauber, Markus 
    The popularity of cloud based Infrastructure-as-a- Service (IaaS) solutions is becoming increasingly popular. However, since IaaS providers and customers interact in a flexible and scalable environment, security remains a serious concern. To handle such security issues, defining a set of security parameters in the service level agreements (SLA) between both, IaaS provider and customer, is of utmost importance. In this paper, the European Network and Information Security Agency (ENISA) guidelines are evaluated to extract a set of security parameters for IaaS. Furthermore, the level of applicability and implementation of this set is used to assess popular industrial and open-source IaaS cloud platforms, respectively VMware and OpenStack. Both platforms provide private clouds, used as backend infrastructures in Industry 4.0 application scenarios. The results serve as initial work to identify a security baseline and research needs for creating secure cloud environments for Industry 4.0.
      171Scopus© Citations 5
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    Publication
    Connected cars — Threats, vulnerabilities and their impact
    (IEEE, 2018-05)
    Strobl, Stefanie 
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    Hofbauer, David 
    ;
    Schmittner, Christoph 
    ;
    Maksuti, Silia 
    ;
    Tauber, Markus 
    ;
    Delsing, Jerker 
    The growing demand for interoperability between system components within a connected car has led to new security challenges in automotive development. The existing components, based on established technology, are often being combined to form such a connected car. For such established technologies, individual, often sector specific threat and vulnerability catalogs exist. The aim of this paper is to identify blocks of established technologies in a connected car and to consolidate the corresponding threat and vulnerability catalogs relevant for the individual constituent components. These findings are used to estimate the impact on specific system components and subsystems to identify the most crucial components and threats.
      212  1Scopus© Citations 15
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      149  1Scopus© Citations 2
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    On the Cost of Cyber Security in Smart Business
    (IEEE (UK) - 12th International Conference for Internet Technology and Secured Transactions (ICITST-2017), 2017-12)
    Ivkić, Igor 
    ;
    Wolfauer, Stephan 
    ;
    Oberhofer, Thomas 
    ;
    Tauber, Markus 
    In a world, as complex and constantly changing as ours cloud computing is a driving force for shaping the IT landscape and changing the way we do business. Current trends show a world of people, things and services all digitally interconnected via the Internet of Things (IoT). This applies in particular to an industrial environment where smart devices and intelligent services pave the way for smart factories and smart businesses. This paper investigates in a use case driven study the potential of making use of smart devices to enable direct, automated and voice-controlled smart businesses. Furthermore, the paper presents an initial investigation on methodologies for measuring costs of cyber security controls for cloud services.
      148Scopus© Citations 4
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    Publication
    Towards continuous Cloud Service Assurance for Critical Infrastructure IT
    (2014-08-27)
    Hudic, A. 
    ;
    Mauthe, A. 
    ;
    Caceres, S. 
    ;
    Hecht, T. 
    ;
    Tauber, Markus 
    The momentum behind Cloud Computing has revolutionized how ICT services are provided, adopted and delivered. Features such as high scalability, fast provisioning, on demand resource availability makes it an attractive proposition for deploying complex and demanding systems. Clouds are also very suitable for deploying systems with unpredictable load patterns including Critical infrastructure services. Though, the major obstacle in hosting Critical infrastructures is often a lack of assurance. The transparency and flexibility offered by the Cloud, abstracts per definition over e.g. data placement, hardware, service migration. This makes it very hard to assure security properties. We present an investigation of assurance approaches, an analysis of their suitability for Critical Infrastructure Services being deployed in the Cloud and presents our approach.
      119  1Scopus© Citations 8