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51. Lücken schließen: Der verantwortungsbewusste Umgang mit IT-Sicherheitslücken

Author

Vettermann, Oliver, Wagner, Manuela, Leicht, Maximilian, and Freiling, Felix

Subjects
FOS: Computer and information sciences
Abstract

Praktisch ausnutzbare Sicherheitslücken bedrohen die IT-Sicherheit privater wie staatlicher Infrastrukturen. Die Beseitigung der Lücken ist daher für alle Akteure, wie Produktherstellerinnen und -hersteller, Betreiberinnen und Betreiber sowie Nutzerinnen und Nutzer, wünschenswert. Dennoch zeigten Konflikte zwischen Herstellerseite und unabhängigen, proaktiv tätigen Sicherheitsforschenden, dass ein auf Kooperation basierendes Schwachstellenmanagement oftmals fehlt. Obwohl sich Expertinnen und Experten überwiegend bezüglich der grundsätzlichen Notwendigkeit eines koordinierten Zusammenwirkens durch Coordinated-Vulnerability-Disclosure-Prozesse (CVD) einig sind, ist dieses aktuell weder rechtlich verpflichtend geregelt noch flächendeckend umgesetzt. Vielmehr sind durch die Rechtsunsicherheiten für Forschende Abschreckungseffekte zu beobachten. Der „bidt Impuls“ skizziert diesen Status quo und zeigt Lösungsansätze auf, um die konfligierenden Interessens- und Rechtspositionen zu entwirren. Neben der Beseitigung einiger rechtlicher Hemmnisse durch die Gesetzgebung wird von den Autorinnen und Autoren die Einrichtung einer koordinierenden und im Konfliktfall schlichtenden Meldestelle zur Unterstützung von Disclosure-Prozessen empfohlen.

Published
2023
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52. Stark : Tamperproof Authentication to Resist Keylogging

Author

Müller, Tilo, Spath, Hans, Mäckl, Richard, Freiling, Felix C., Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, and Sadeghi, Ahmad-Reza, editor

Published
2013
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53. Evaluating the Forensic Image Generator Generator

Author

Moch, Christian, Freiling, Felix C., Akan, Ozgur, Series editor, Bellavista, Paolo, Series editor, Cao, Jiannong, Series editor, Dressler, Falko, Series editor, Ferrari, Domenico, Series editor, Gerla, Mario, Series editor, Kobayashi, Hisashi, Series editor, Palazzo, Sergio, Series editor, Sahni, Sartaj, Series editor, Shen, Xuemin (Sherman), Series editor, Stan, Mircea, Series editor, Xiaohua, Jia, Series editor, Zomaya, Albert, Series editor, Coulson, Geoffrey, Series editor, Gladyshev, Pavel, editor, and Rogers, Marcus K., editor

Published
2012
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55. TreVisor : OS-Independent Software-Based Full Disk Encryption Secure against Main Memory Attacks

Author

Müller, Tilo, Taubmann, Benjamin, Freiling, Felix C., Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Bao, Feng, editor, Samarati, Pierangela, editor, and Zhou, Jianying, editor

Published
2012
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58. TrumanBox: Improving Dynamic Malware Analysis by Emulating the Internet

Author

Gorecki, Christian, Freiling, Felix C., Kührer, Marc, Holz, Thorsten, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Défago, Xavier, editor, Petit, Franck, editor, and Villain, Vincent, editor

Published
2011
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59. Reliability vs. Security: A Subjective Overview

Author

Freiling, Felix C., Walter, Max, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Eusgeld, Irene, editor, Freiling, Felix C., editor, and Reussner, Ralf, editor

Published
2008
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60. Learning More about the Underground Economy: A Case-Study of Keyloggers and Dropzones

Author

Holz, Thorsten, Engelberth, Markus, Freiling, Felix, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Backes, Michael, editor, and Ning, Peng, editor

Published
2009
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61. Multimedia Forensics Is Not Computer Forensics

Author

Böhme, Rainer, Freiling, Felix C., Gloe, Thomas, Kirchner, Matthias, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Geradts, Zeno J. M. H., editor, Franke, Katrin Y., editor, and Veenman, Cor J., editor

Published
2009
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62. Cooperative Intrusion Detection in Wireless Sensor Networks

Author

Krontiris, Ioannis, Benenson, Zinaida, Giannetsos, Thanassis, Freiling, Felix C., Dimitriou, Tassos, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Roedig, Utz, editor, and Sreenan, Cormac J., editor

Published
2009
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63. Query Dissemination with Predictable Reachability and Energy Usage in Sensor Networks

Author

Benenson, Zinaida, Bestehorn, Markus, Buchmann, Erik, Freiling, Felix C., Jawurek, Marek, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Coudert, David, editor, Simplot-Ryl, David, editor, and Stojmenovic, Ivan, editor

Published
2008
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64. On Detecting Termination in the Crash-Recovery Model

Author

Freiling, Felix C., Majuntke, Matthias, Mittal, Neeraj, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Kermarrec, Anne-Marie, editor, Bougé, Luc, editor, and Priol, Thierry, editor

Published
2007
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65. Global Predicate Detection in Distributed Systems with Small Faults

Author

Freiling, Felix C., Jhumka, Arshad, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Masuzawa, Toshimitsu, editor, and Tixeuil, Sébastien, editor

Published
2007
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66. Secure Failure Detection in TrustedPals

Author

Cortiñas, Roberto, Freiling, Felix C., Ghajar-Azadanlou, Marjan, Lafuente, Alberto, Larrea, Mikel, Penso, Lucia Draque, Soraluze, Iratxe, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Masuzawa, Toshimitsu, editor, and Tixeuil, Sébastien, editor

Published
2007
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67. From Crash-Stop to Permanent Omission: Automatic Transformation and Weakest Failure Detectors

Author

Delporte-Gallet, Carole, Fauconnier, Hugues, Freiling, Felix C., Penso, Lucia Draque, Tielmann, Andreas, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, and Pelc, Andrzej, editor

Published
2007
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69. Verifiable Agreement: Limits of Non-repudiation in Mobile Peer-to-Peer Ad Hoc Networks

Author

Benenson, Zinaida, Freiling, Felix C., Pfitzmann, Birgit, Rohner, Christian, Waidner, Michael, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Buttyán, Levente, editor, Gligor, Virgil D., editor, and Westhoff, Dirk, editor

Published
2006
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70. Safe Termination Detection in an Asynchronous Distributed System When Processes May Crash and Recover

Author

Mittal, Neeraj, Phaneesh, Kuppahalli L., Freiling, Felix C., Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, and Shvartsman, Mariam Momenzadeh Alexander A., editor

Published
2006
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71. TrustedPals: Secure Multiparty Computation Implemented with Smart Cards

Author

Fort, Milan, Freiling, Felix, Penso, Lucia Draque, Benenson, Zinaida, Kesdogan, Dogan, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Gollmann, Dieter, editor, Meier, Jan, editor, and Sabelfeld, Andrei, editor

Published
2006
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72. The Nepenthes Platform: An Efficient Approach to Collect Malware

Author

Baecher, Paul, Koetter, Markus, Holz, Thorsten, Dornseif, Maximillian, Freiling, Felix, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Zamboni, Diego, editor, and Kruegel, Christopher, editor

Published
2006
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73. Optimal Randomized Fair Exchange with Secret Shared Coins

Author

Freiling, Felix, Herlihy, Maurice, Penso, Lucia Draque, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Dough, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Anderson, James H., editor, Prencipe, Giuseppe, editor, and Wattenhofer, Roger, editor

Published
2006
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74. A Taxonomy on Component-Based Software Engineering Methods

Author

Bunse, Christian, Freiling, Felix C., Levy, Nicole, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Dough, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Reussner, Ralf H., editor, Stafford, Judith A., editor, and Szyperski, Clemens A., editor

Published
2006
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75. On the Composition of Compositional Reasoning

Author

Freiling, Felix C., Santen, Thomas, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Dough, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Reussner, Ralf H., editor, Stafford, Judith A., editor, and Szyperski, Clemens A., editor

Published
2006
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77. Code Stabilization

Author

Freiling, Felix C., Ghosh, Sukumar, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Tixeuil, Sébastien, editor, and Herman, Ted, editor

Published
2005
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78. Efficient Reduction for Wait-Free Termination Detection in a Crash-Prone Distributed System

Author

Mittal, Neeraj, Freiling, Felix C., Venkatesan, S., Penso, Lucia Draque, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, and Fraigniaud, Pierre, editor

Published
2005
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79. Revisiting Failure Detection and Consensus in Omission Failure Environments

Author

Delporte-Gallet, Carole, Fauconnier, Hugues, Freiling, Felix C., Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Van Hung, Dang, editor, and Wirsing, Martin, editor

Published
2005
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80. Botnet Tracking: Exploring a Root-Cause Methodology to Prevent Distributed Denial-of-Service Attacks

Author

Freiling, Felix C., Holz, Thorsten, Wicherski, Georg, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, di Vimercati, Sabrina de Capitani, editor, Syverson, Paul, editor, and Gollmann, Dieter, editor

Published
2005
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83. Defining Atomicity (and Integrity) for Snapshots of Storage in Forensic Computing

Author

Ottmann, Jenny, Breitinger, Frank, and Freiling, Felix

Subjects
storage acquisition, instantaneous snapshot, correctness, integrity
Abstract

The acquisition of data from main memory or from hard disk storage is usually one of the first steps in a forensic investigation. We revisit the discussion on quality criteria for “forensically sound” acquisition of such storage and propose a new way to capture the intent to acquire an instantaneous snapshot from a single target system. The idea of our definition is to allow a certain flexibility into when individual portions of memory are acquired, but at the same time require being consistent with causality (i.e., cause/effect relations). Our concept is much stronger than the original notion of atomicity defined by Vömel and Freiling (2012) but still attainable using copy-on-write mechanisms. As a minor result, we also fix a conceptual problem within the original definition of integrity.

Published
2022

86. Proceedings of the 2022 Joint Workshop of the German Research Training Groups in Computer Science

Author

Freiling, Felix, Seidl, Helmut, and 2022 Joint Workshop Of The German Research Training Groups In Computer Science June 12–June 15, 2022

Subjects
ddc:000, 000 Informatik, Informationswissenschaft, allgemeine Werke
Abstract

Having spent two successive years running online to prevent the spread of the Corona virus, the traditional annual meeting of the German Research Training Groups (RTGs) funded by the Deutsche Forschungsgemeinschaft (DFG) in the field of computer science returns to Schloss Dagstuhl --– Leibniz Center for Informatics, one of the world's premier venues for computer science-related seminars. Returning to Dagstuhl and hosting this meeting as an in-person-only event was a deliberate decision to revive interaction modes that many of the funded researchers had yet to experience: fostering personal interchange of ideas and experiences in order to strengthen the connection within the German computer science community. This volume documents the abstracts of the research topics of funded researchers in the participating RTGs. The event was jointly organized by RTG 2475 (Cybercrime and Forensic Computing) and RTG 2428 (ConVeY --- Continuous Verification of Cyber-Physical Systems). It took place between Sunday, June 12 and Wednesday, June 15, 2022, as in-person only Dagstuhl Event 22243. The meeting featured the usual sequence of research presentations by funded researchers, networking meetings for PIs and RTG coordinators, as well as two invited talks, one by Professor Martina Seidl (JKU Linz, Austria) on ``Competitions as Scientific Method'' and another by Professor Jennifer Byrne (School of Medical Sciences, The University of Sydney, Australia) titled ``An introduction to research paper mills''. Because last year's event marked the 25th anniversary of the workshop series, it featured a live interview with Professor Otto Spaniol who had initiated the workshop series in 1996. We document the interview in this volume.

Published
2022
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87. Invasives Rechnen

Author

Anantharajaiah, Nidhi, Asfour, Tamim, Bader, Michael, Bauer, Lars, Becker, Jürgen, Bischof, Simon, Brand, Marcel, Bungartz, Hans-Joachim, Eichler, Christian, Esper, Khalil, Falk, Joachim, Fasfous, Nael, Freiling, Felix, Fried, Andreas, Gerndt, Michael, Glaß, Michael, Gonzalez, Jeferson, Hannig, Frank, Heidorn, Christian, Henkel, Jörg, Herkersdorf, Andreas, Herzog, Benedict, John, Jophin, Hönig, Timo, Hundhausen, Felix, Khdr, Heba, Langer, Tobias, Lenke, Oliver, Lesniak, Fabian, Lindermayr, Alexander, Listl, Alexandra, Maier, Sebastian, Megow, Nicole, Mettler, Marcel, Müller-Gritschneder, Daniel, Nassar, Hassan, Paus, Fabian, Pöppl, Alexander, Pourmohseni, Behnaz, Rabenstein, Jonas, Raffeck, Phillip, Rapp, Martin, Rivas, Santiago Narváez, Sagi, Mark, Schirrmacher, Franziska, Schlichtmann, Ulf, Schmaus, Florian, Schröder-Preikschat, Wolfgang, Schwarzer, Tobias, Sikal, Mohammed Bakr, Simon, Bertrand, Snelting, Gregor, Spieck, Jan, Srivatsa, Akshay, Stechele, Walter, Teich, Jürgen, Turan, Furkan, Ureña, Isaías A. Comprés, Verbauwhede, Ingrid, Walter, Dominik, Wild, Thomas, Wildermann, Stefan, Wille, Mario, Witterauf, Michael, and Zhang, Li

Subjects
Chip-Multiprozessor, Speicherhierarchie, System-on-Chip, 003 Systeme, Parallelverarbeitung, Ressourcenverwaltung, Ablaufplanung, ddc:003, Hardwarebeschleunigung, ddc:004, Dienstgüte, Network-on-Chip, 004 Datenverarbeitung, Informatik, Parallelprogrammierung
Abstract

Invasive computing is a paradigm for designing and programming future parallel computing systems. For systems with 1,000 or more cores on a chip, resource-aware programming is of utmost importance to obtain high utilisation as well as computational, energy and power efficiency. Invasive computing provides a programmer explicit handles to specify and argue about resource requirements desired or required in different phases of execution: In an invade phase, an application asks the operating system to allocate a set of processor, memory and communication resources to be claimed. In a subsequent infect phase, the parallel workload is spread and executed on the obtained claim of resources. Finally, if the degree of parallelism should be lower again, a retreat operation frees the claim again, and the application resumes a sequential execution. To support this idea of self-adaptive and resource-aware programming, not only new programming concepts, languages, compilers, and operating systems were needed to be developed, but also revolutionary architectural changes in the design of MPSoCs (multiprocessor systems-on-a-chip) to efficiently support invasion, infection, and retreat operations. This book gives a comprehensive overview of all aspects of invasive computing., Invasives Rechnen ist ein Paradigma für den Entwurf und die Programmierung zukünftiger paralleler Rechensysteme. Für Systeme mit 1.000 oder mehr Kernen auf einem Chip ist eine ressourcengewahre Programmierung von größter Bedeutung, um eine hohe Auslastung sowie Rechen-, Energie- und Leistungseffizienz zu erreichen. Invasives Rechnen bietet dem Programmierer bzw. der Programmiererin explizite Möglichkeiten, die in verschiedenen Phasen der Ausführung gewünschten oder erforderlichen Ressourcenanforderungen zu spezifizieren: In einer Invasionsphase fordert eine Anwendung vom Betriebssystem eine Reihe gewünschter Prozessor-, Speicher- und Kommunikationsressourcen an. In einer anschließenden Infektionsphase wird die parallele Arbeitslast auf die bereitgestellten Ressourcen verteilt und ausgeführt. Nimmt der Grad der Parallelität während der Programmausführung ab, können die allozierten Ressourcen durch eine Rückzugsoperation wieder freigegeben werden, und die Anwendung wird wieder sequenziell ausgeführt. Um diese Idee der selbstadaptiven und ressourcengewahren Programmierung zu realisieren, mussten nicht nur neue Programmierkonzepte, Sprachen, Compiler und Betriebssysteme entwickelt werden, sondern auch revolutionäre architektonische Änderungen im Entwurf von MPSoCs (Multiprozessorsystemen auf einem Chip), um Invasions-, Infektions- und Rückzugsoperationen effizient zu unterstützen. Dieses Buch gibt einen umfassenden Überblick über alle Aspekte des invasiven Rechnens.

Published
2022

88. 5.-8. April 2022

Author

Gruber, Jan and Freiling, Felix C.

Subjects
Malware Analysis||Sandboxing||Virtual Machine Introspection||Reverse Turing Test
Abstract

Sandboxes are an indispensable tool in dynamic malware analysis today. However, modern malware often employs sandbox-detection methods to exhibit non-malicious behavior within sandboxes and therefore evade automatic analysis. One category of sandbox-detection techniques are reverse Turing tests (RTTs) to determine the presence of a human operator. In order to pass these RTTs, we propose a novel approach which builds upon virtual machine introspection (VMI) to automatically reconstruct the graphical user interface, determine clickable buttons and inject human interface device events via direct control of virtualized human interface devices in a stealthy way. We extend the VMI-based open-source sandbox DRAKVUF with our approach and show that it successfully passes RTTs commonly employed by malware in the wild to detect sandboxes

Published
2022
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89. A Comparison of Cloud Storage Technologies as Sources of Digital Evidence

Author

Büter, Regine, Engst, German, Esser, Kai, Freiling, Felix, Friedrich, Kay, Friedrich, Tim, Hammer, Andreas, Heine, Lukas, Heinlein, Lukas, Korn, Oliver, Minuth, Christian, Müller, Manuel, Müller, Nico, Reithmeier, Juliane, Ripley, Nora, Schulze, Matti, Sievers, Merlin, Srikhaolan, Charinee, and Zenk, Johan

Subjects
ddc:004, 004 Datenverarbeitung, Informatik
Abstract

Due to their ease of use and their reliability, managed storage services "in the cloud" have become a standard way to store personal files for many users. In fact, many apps on mobile devices use local storage on the client merely as a cache for data that is fully stored on a remote server. Consequently, data from cloud storage services is an increasingly valuable source of digital evidence in forensic investigations. This document presents the results of a student project that was performed at Friedrich-Alexander-Universität Erlangen-Nürnberg in the winter term 2021/22. Six groups of students analyzed the most relevant network storage technologies (Samba, Nextcloud, Dropbox, Google Drive, OneDrive, iCloud) regarding two questions: (1) What effect does data acquisition by the client have on the data stored on the server? (2) Does the technology support delayed verification of data acquisition in any way? The two questions refer to critical aspects of forensic evidence collection, namely in what way does evidence collection interfere with the evidence, and how easy is it to prove the provenance of data in a forensic investigation. In the concluding discussion we compare the different technologies and develop a taxonomy of storage services that can be used to assess other cloud storage services with regarding the evidental value of data acquired from them., Technical reports / Department Informatik; CS-2022-01

Published
2022

100. Easy Consensus Algorithms for the Crash-Recovery Model

Author

Freiling, Felix C., Lambertz, Christian, Majster-Cederbaum, Mila, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, and Taubenfeld, Gadi, editor

Published
2008
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