Logo des Repositoriums

Auflistung nach Autor:in "Schanzenbach, Martin"

1 - 2 von 2
  • Konferenzbeitrag
    Exploring multi-touch gestures for map interaction in mass casualty incidents
    (INFORMATIK 2011 – Informatik schafft Communities, 2011) Artinger, Eva; Coskun, Tayfur; Schanzenbach, Martin; Echtler, Florian; Nestler, Simon; Klinker, Gudrun
    In mass casualty incidents a common operation picture, which gives an overview about the current situation is critical information for managing the emergency. In order to support the collaboration between different incident commanders a multi-touch table, placed in the incident command post, is used to present the current operation picture on a map. To place as little additional mental load as possible on the users, any interaction with this map interface should be natural and intuitive. Therefore we investigated in a user study several alternative multi-touch gestures, combined to five sets for the tasks of modifying the map view and selecting map objects in an emergency management scenario. The gesture sets contained widely known as well as new promising gestures.
  • Konferenzbeitrag
    GRAIN: Truly Privacy-friendly and Self-sovereign Trust Establishment with GNS and TRAIN
    (Open Identity Summit 2024, 2024) Schanzenbach, Martin; Nadler, Sebastian; Johnson Jeyakumar, Isaac Henderson
    Robust and secure trust establishment is an open problem in the domain of self-sovereign identities (SSI). The TRAIN [KR21] concept proposes to leverage the security guarantees and trust anchor of the DNS to publish and resolve pointers to trust lists from DNS. While the DNS is a corner stone of the Internet, its continued use is primarily a consequence of inertia due to its crucial function as the address discovery system for existing Internet services. Research and development in the area of SSI is — for the most part — green field. The choice of DNS as a core building block appears fainthearted given its open security issues. Recently, the IETF paved the way to experiment with alternative name systems in real world deployments by reserving the special-use top-level domain “.alt” in the domain name space [KH23]. This allows us to use alternative name systems such as the GNU Name System (GNS) [SGF23a] without intruding into the domain name space reserved for DNS. In this paper, we show how we can use the GNS as a drop-in replacement for DNS in TRAIN. We show how TRAIN-over-GNS (GRAIN) can deliver security and privacy improvements the security concept of TRAIN-over DNS and show that it is practically feasible with limited modifications of existing software stacks.