Logo des Repositoriums

Auflistung nach Autor:in "Kreutzer, Michael"

1 - 4 von 4
  • Konferenzbeitrag
    Quotable Signatures using Merkle Trees
    (INFORMATIK 2019: 50 Jahre Gesellschaft für Informatik – Informatik für Gesellschaft, 2019) Kreutzer, Michael; Niederhagen, Ruben; Shrishak, Kris; Fhom, Hervais Simo
    Fake news have been around since time immemorial. But the widespread reach and the rate of propagation through social media websites makes the issue of fake news a grave concern. We propose to address the issue of fake news through the use of quotable signatures using Merkle trees to verify news shared on social media websites.
  • Zeitschriftenartikel
    Selbstheilende dienslfindung für IT-netze in mobilen feldkrankenhäusern
    (Wirtschaftsinformatik: Vol. 47, No. 3, 2005) Kreutzer, Michael; Kähmer, Martin; Scholler, Henning
    The organizational workflows of mobile field hospitals can be accelerated by IT networks and ITapplications. In most operational areas of these hospitals it lacks (still working) electric power supply and communication networks. The special requirements for the design of the IT networks to establish include quick deployment, configurationless operation, robustness and scalability. From the user’s point of view it is crucial to deploy mobile computers so as to be able to notify and search staff members and resources. In this article we propose mobile ad hoc networks in conjunction with self-healing service discovery. We developed a service discovery algorithm as a prototype for the use in field hospitals which accomplishes the special requirements of the software side.
  • Konferenzbeitrag
    Towards global eID-Interoperability
    (BIOSIG 2007: biometrics and electronic signatures, 2007) Bruegger, Bud P.; Hühnlein, Detlef; Kreutzer, Michael
    The ability to use electronic identities (eID) anytime and anywhere is a prerequisite for a dynamic information society. However, there are still many obstacles which prevent the secure, privacy-friendly and ubiquitous use of electronic identities in an interoperable manner. This paper introduces the vision of global eID-Interoperability, describes the state of the art for electronic identities, highlights related challenges and sketches possible steps towards global eID-Interoperability.
  • Workshopbeitrag
    Towards Secure Urban Infrastructures: Cyber Security Challenges for Information and Communication Technology in Smart Cities
    (Mensch und Computer 2020 - Workshopband, 2020) Reuter, Christian; Haunschild, Jasmin; Hollick, Matthias; Mühlhäuser, Max; Vogt, Joachim; Kreutzer, Michael
    The growth of cities continues to be a global megatrend. As more and more people live in urban areas and urban services and infrastructures are under growing strain, technologies are increasingly being researched and used to make city life more efficient and comfortable. As a result, so-called “Smart Cities” have complex IT infrastructures and cyber-physical systems such as sensor/actuator networks for the general population and are developing worldwide. Urban infrastructure must be secured against attacks, ensuring reliable and resilient services for citizens as well as privacy and data security. This paper introduces selected challenges faced by infrastructure providers, citizens and decision-makers in handling attacks aimed at information and communication technologies (ICT) of urban infrastructures and presents current research avenues for tackling cyberattacks and for developing tools for creating, portraying and disseminating actiona-ble information as one important response to security challenges. It then presents findings from a representative survey conducted in Germany (N=1091) on the experiences and perceptions of citizens concerning the relevance of cyberat-tacks will be presented.