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Guardians of the Galaxy: Protecting Space Systems from Cyber Threats (Dagstuhl Seminar 25101)

Authors: Ali Abbasi, Gregory J. Falco, Daniel Fischer, and Jill Slay

Published in: Dagstuhl Reports, Volume 15, Issue 3 (2025)

Abstract

This report documents the program and outcomes of Dagstuhl Seminar 25101 "Guardians of the Galaxy: Protecting Space Systems from Cyber Threats," which brought together 40 participants from 11 countries. It explains why space cybersecurity is distinct from terrestrial contexts and distills the working-group results (attack/prepare, detect, protect, respond) into a focused research-and-action roadmap for agencies, industry, and academia.

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Ali Abbasi, Gregory J. Falco, Daniel Fischer, and Jill Slay. Guardians of the Galaxy: Protecting Space Systems from Cyber Threats (Dagstuhl Seminar 25101). In Dagstuhl Reports, Volume 15, Issue 3, pp. 1-38, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2025)

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@Article{abbasi_et_al:DagRep.15.3.1,
  author =	{Abbasi, Ali and Falco, Gregory J. and Fischer, Daniel and Slay, Jill},
  title =	{{Guardians of the Galaxy: Protecting Space Systems from Cyber Threats (Dagstuhl Seminar 25101)}},
  pages =	{1--38},
  journal =	{Dagstuhl Reports},
  ISSN =	{2192-5283},
  year =	{2025},
  volume =	{15},
  number =	{3},
  editor =	{Abbasi, Ali and Falco, Gregory J. and Fischer, Daniel and Slay, Jill},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/DagRep.15.3.1},
  URN =		{urn:nbn:de:0030-drops-235528},
  doi =		{10.4230/DagRep.15.3.1},
  annote =	{Keywords: Space Cybersecurity, Satellite Security, Cyber-Physical Systems, Network Security, Embedded Systems Security, System Security, Autonomous Systems Security, Post-Quantum Cryptography}
}

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DOI: 10.4230/OASIcs.KiVS.2011.215

A Mobility Model for the Realistic Simulation of Social Context

Authors: Daniel Fischer

Published in: OASIcs, Volume 17, 17th GI/ITG Conference on Communication in Distributed Systems (KiVS 2011)

Abstract

Simulation is a fundamental means for evaluating mobile applications based on ad-hoc networks. In recent years, the new breed of social mobility models (SMMs) has risen. Contrary to most classical mobility models, SMMs model the social aspects of human mobility, i.e. which users meet, when and how often. Such information is indispensable for the simulation of a wide range of socially-aware communication protocols mostly based on delay-tolerant networks, including opportunistic ad-hoc routing and data dissemination systems. Each SMM needs a model of the relations between a set of relevant people (called social network model -- SNM) in order to simulate their mobility. Existing SMMs lack flexibility since each of them is implicitly restricted to a specific, simplifying SNM. We present GeSoMo (General Social Mobility Model), a new SMM that separates the core mobility model from the structural description of the social network underlying the simulation. This simple and elegant design principle gives GeSoMo generalizing power: Arbitrary existing and future SNMs can be used without changing GeSoMo itself. Our evaluation results show that GeSoMo produces simulations that are coherent with a broad range of empirical data describing real-world human social behavior and mobility.

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Daniel Fischer. A Mobility Model for the Realistic Simulation of Social Context. In 17th GI/ITG Conference on Communication in Distributed Systems (KiVS 2011). Open Access Series in Informatics (OASIcs), Volume 17, pp. 215-220, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2011)

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@InProceedings{fischer:OASIcs.KiVS.2011.215,
  author =	{Fischer, Daniel},
  title =	{{A Mobility Model for the Realistic Simulation of Social Context}},
  booktitle =	{17th GI/ITG Conference on Communication in Distributed Systems (KiVS 2011)},
  pages =	{215--220},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-939897-27-9},
  ISSN =	{2190-6807},
  year =	{2011},
  volume =	{17},
  editor =	{Luttenberger, Norbert and Peters, Hagen},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.KiVS.2011.215},
  URN =		{urn:nbn:de:0030-drops-29772},
  doi =		{10.4230/OASIcs.KiVS.2011.215},
  annote =	{Keywords: Mobility Model, Simulation, ad-hoc networks}
}

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Documents authored by Fischer, Daniel

Guardians of the Galaxy: Protecting Space Systems from Cyber Threats (Dagstuhl Seminar 25101)

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A Mobility Model for the Realistic Simulation of Social Context

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