Fraunhofer-Institut für Angewandte und Integrierte Sicherheit AISEC

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  • Publication
    FORTRESS: FORtified Tamper-Resistant Envelope with Embedded Security Sensor
    ( 2021)
    Garb, Kathrin
    ;
    Obermaier, Johannes
    ;
    Ferres, Elischa
    ;
    Künig, Martin
    Protecting security modules from attacks on the hardware level presents a very challenging endeavor since the attacker can manipulate the device directly through physical access. To address this issue, different physical security enclosures have been developed with the goal to cover entire hardware modules and, hence, protect them from external manipulation. Novel concepts are battery-less and based on Physical Unclonable Functions (PUFs), aiming at overcoming the most severe drawbacks of past devices; the need for active monitoring and, thus, limited battery life-time. Although some progress has already been made for certain aspects of PUF-based enclosures, the combination and integration of all required components and the creation of a corresponding architecture for Hardware Security Modules (HSMs) is still an open issue. In this paper, we present FORTRESS, a PUF-based HSM that integrates the tamper-sensitive capacitive PUF-based envelope and its embedded security sensor IC into a secure architecture. Our concept proposes a secure life cycle concept including shipment aspects, a full key generation scheme with re-enrollment capabilities, and our the next generation Embedded Key Management System. With FORTRESS, we take the next step towards the productive operation of PUF-based HSMs.
  • Publication
    A Rapid Innovation Framework for Connected Mobility Applications
    (Fraunhofer ESK, 2018)
    Pöhn, Daniela
    ;
    Wessel, Sascha
    ;
    Fischer, Felix
    ;
    Braunsdorf, Oliver
    ;
    Wenninger, Franz
    ;
    Seydel, Dominique
    ;
    Weiß, Gereon
    ;
    Roscher, Karsten
    ;
    Freese-Wagner, Manuela
    Connected Mobility Applications help to continuously improve traffic safety and efficiency. Today, much time and effort have to be invested to bring an idea into a safe prototype and to finally launch a reliable product.Software development tools have to adapt to these requirements. They have to support a rapid and continuous development process, that allows to test and validate the distributed application as one overall system. When developing cooperative applications, a higher design complexity has to be handled, as components are distributed over heterogeneous systems that interact with a varying timing behavior and less data confidence. Also, test and validation become more complex. Our Innovation Framework is intended to rapidly bring an idea for a connected application into a prototype so the investment risk for innovative applications is reduced. In this whitepaper we describe the approach of a Rapid InnovationTool Kit that is intended to speed up the development process for connected mobility applications. Thereby, a safe and secure prototype is available at an early development phase to gain experience within field tests that help to rapidly improve the intended application. Our software tool kit is able to find deviations from the specified behaviour and also it can instantly locate and identify erroneous functions within distributed systems. Extensive security tests can then be applied on the implemented application to ensure a secure operation. Another use case for the described testbed is to evaluate communication technologies and to find the most suitable transmission technology for a certain application. For example, short range communication with the 802.11p WLAN technology or the upcoming LTE enhancement LTE-V2X are comparable within specific scenarios. This evaluation can help to reduce the investment risk for the deployment of connected applications.
  • Publication
    Safety & security testing of cooperative automotive systems
    ( 2018)
    Seydel, Dominique
    ;
    Weiß, Gereon
    ;
    Pöhn, Daniela
    ;
    Wessel, Sascha
    ;
    Wenninger, Franz
    Cooperative behavior of automated traffic participants is one next step towards the goals of reducing the number of traffic fatalities and optimizing traffic flow. The notification of a traffic participant's intentions and coordination of driving strategies increase the reaction time for safety functions and allow a foresighted maneuver planning. When developing cooperative applications, a higher design complexity has to be handled, as components are distributed over heterogeneous systems that interact with a varying timing behavior and less data confidence. In this paper, we present a solution for the development, simulation and validation of cooperative automotive systems together with an exemplary development flow for safety and security testing.