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191 results on '"Jager, Tibor"'

1. Privacy-Preserving Power Flow Analysis via Secure Multi-Party Computation

Author

von der Heyden, Jonas, Schlüter, Nils, Binfet, Philipp, Asman, Martin, Zdrallek, Markus, Jager, Tibor, and Darup, Moritz Schulze

Subjects
Computer Science - Cryptography and Security, Electrical Engineering and Systems Science - Systems and Control
Abstract

Smart grids feature a bidirectional flow of electricity and data, enhancing flexibility, efficiency, and reliability in increasingly volatile energy grids. However, data from smart meters can reveal sensitive private information. Consequently, the adoption of smart meters is often restricted via legal means and hampered by limited user acceptance. Since metering data is beneficial for fault-free grid operation, power management, and resource allocation, applying privacy-preserving techniques to smart metering data is an important research problem. This work addresses this by using secure multi-party computation (SMPC), allowing multiple parties to jointly evaluate functions of their private inputs without revealing the latter. Concretely, we show how to perform power flow analysis on cryptographically hidden prosumer data. More precisely, we present a tailored solution to the power flow problem building on an SMPC implementation of Newtons method. We analyze the security of our approach in the universal composability framework and provide benchmarks for various grid types, threat models, and solvers. Our results indicate that secure multi-party computation can be able to alleviate privacy issues in smart grids in certain applications. more...

Published
2024
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3. Security Analysis of the WhatsApp End-to-End Encrypted Backup Protocol

Author

Davies, Gareth T., Faller, Sebastian, Gellert, Kai, Handirk, Tobias, Hesse, Julia, Horváth, Máté, Jager, Tibor, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Handschuh, Helena, editor, and Lysyanskaya, Anna, editor more...

Published
2023
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4. Subversion-Resilient Authenticated Encryption Without Random Oracles

Author

Bemmann, Pascal, Berndt, Sebastian, Diemert, Denis, Eisenbarth, Thomas, Jager, Tibor, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Tibouchi, Mehdi, editor, and Wang, XiaoFeng, editor more...

Published
2023
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6. On the Concrete Security of TLS 1.3 PSK Mode

Author

Davis, Hannah, Diemert, Denis, Günther, Felix, Jager, Tibor, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Dunkelman, Orr, editor, and Dziembowski, Stefan, editor more...

Published
2022
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7. On Fingerprinting Attacks and Length-Hiding Encryption

Author

Gellert, Kai, Jager, Tibor, Lyu, Lin, Neuschulten, Tom, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Yung, Moti, Editorial Board Member, and Galbraith, Steven D., editor more...

Published
2022
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11. Symmetric Key Exchange with Full Forward Security and Robust Synchronization

Author

Boyd, Colin, Davies, Gareth T., de Kock, Bor, Gellert, Kai, Jager, Tibor, Millerjord, Lise, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Tibouchi, Mehdi, editor, and Wang, Huaxiong, editor more...

Published
2021
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12. Digital Signatures with Memory-Tight Security in the Multi-challenge Setting

Author

Diemert, Denis, Gellert, Kai, Jager, Tibor, Lyu, Lin, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Tibouchi, Mehdi, editor, and Wang, Huaxiong, editor more...

Published
2021
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13. Versatile and Sustainable Timed-Release Encryption and Sequential Time-Lock Puzzles (Extended Abstract)

Author

Chvojka, Peter, Jager, Tibor, Slamanig, Daniel, Striecks, Christoph, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Shulman, Haya, editor, and Waidner, Michael, editor more...

Published
2021
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14. Authenticated Key Exchange and Signatures with Tight Security in the Standard Model

Author

Han, Shuai, Jager, Tibor, Kiltz, Eike, Liu, Shengli, Pan, Jiaxin, Riepel, Doreen, Schäge, Sven, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Malkin, Tal, editor, and Peikert, Chris, editor more...

Published
2021
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15. Tightly-Secure Authenticated Key Exchange, Revisited

Author

Jager, Tibor, Kiltz, Eike, Riepel, Doreen, Schäge, Sven, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Canteaut, Anne, editor, and Standaert, François-Xavier, editor more...

Published
2021
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16. More Efficient Digital Signatures with Tight Multi-user Security

Author

Diemert, Denis, Gellert, Kai, Jager, Tibor, Lyu, Lin, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Yung, Moti, Editorial Board Member, and Garay, Juan A., editor more...

Published
2021
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18. Subversion-Resilient Public Key Encryption with Practical Watchdogs

Author

Bemmann, Pascal, Chen, Rongmao, Jager, Tibor, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Yung, Moti, Editorial Board Member, and Garay, Juan A., editor more...

Published
2021
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19. Privacy-Preserving Power Flow Analysis via Secure Multi-Party Computation

Author

von der Heyden, Jonas, Schluter, Nils, Binfet, Philipp, Asman, Martin, Zdrallek, Markus, Jager, Tibor, and Schulze Darup, Moritz

Abstract

Smart grids feature a bidirectional flow of electricity and data, enhancing flexibility, efficiency, and reliability in increasingly volatile energy grids. However, data from smart meters can reveal sensitive private information. Consequently, the adoption of smart meters is often restricted via legal means and hampered by limited user acceptance. Since metering data is beneficial for fault-free grid operation, power management, and resource allocation, applying privacy-preserving techniques to smart metering data is an important research problem. This work addresses this by using secure multi-party computation (SMPC), allowing multiple parties to jointly evaluate functions of their private inputs without revealing the latter. Concretely, we show how to perform power flow analysis on cryptographically hidden prosumer data. More precisely, we present a tailored solution to the power flow problem building on an SMPC implementation of Newton’s method. We analyze the security of our approach in the universal composability framework and provide benchmarks for various grid types, threat models, and solvers. Our results indicate that secure multi-party computation can be able to alleviate privacy issues in smart grids in certain applications. more...

Published
2025
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22. Forward-Secure 0-RTT Goes Live: Implementation and Performance Analysis in QUIC

Author

Dallmeier, Fynn, Drees, Jan P., Gellert, Kai, Handirk, Tobias, Jager, Tibor, Klauke, Jonas, Nachtigall, Simon, Renzelmann, Timo, Wolf, Rudi, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Krenn, Stephan, editor, Shulman, Haya, editor, and Vaudenay, Serge, editor more...

Published
2020
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23. Offline Witness Encryption with Semi-adaptive Security

Author

Chvojka, Peter, Jager, Tibor, Kakvi, Saqib A., Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Conti, Mauro, editor, Zhou, Jianying, editor, Casalicchio, Emiliano, editor, and Spognardi, Angelo, editor more...

Published
2020
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24. On the Real-World Instantiability of Admissible Hash Functions and Efficient Verifiable Random Functions

Author

Jager, Tibor, Niehues, David, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Paterson, Kenneth G., editor, and Stebila, Douglas, editor more...

Published
2020
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25. Highly Efficient Key Exchange Protocols with Optimal Tightness

Author

Cohn-Gordon, Katriel, Cremers, Cas, Gjøsteen, Kristian, Jacobsen, Håkon, Jager, Tibor, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Boldyreva, Alexandra, editor, and Micciancio, Daniele, editor more...

Published
2019
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26. Session Resumption Protocols and Efficient Forward Security for TLS 1.3 0-RTT

Author

Aviram, Nimrod, Gellert, Kai, Jager, Tibor, Hutchison, David, Editorial Board Member, Kanade, Takeo, Editorial Board Member, Kittler, Josef, Editorial Board Member, Kleinberg, Jon M., Editorial Board Member, Mattern, Friedemann, Editorial Board Member, Mitchell, John C., Editorial Board Member, Naor, Moni, Editorial Board Member, Pandu Rangan, C., Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Terzopoulos, Demetri, Editorial Board Member, Tygar, Doug, Editorial Board Member, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Ishai, Yuval, editor, and Rijmen, Vincent, editor more...

Published
2019
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32. Practical and Tightly-Secure Digital Signatures and Authenticated Key Exchange

Author

Gjøsteen, Kristian, Jager, Tibor, 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, Pandu Rangan, C., Series Editor, Steffen, Bernhard, Series Editor, Terzopoulos, Demetri, Series Editor, Tygar, Doug, Series Editor, Weikum, Gerhard, Series Editor, Shacham, Hovav, editor, and Boldyreva, Alexandra, editor more...

Published
2018
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33. Bloom Filter Encryption and Applications to Efficient Forward-Secret 0-RTT Key Exchange

Author

Derler, David, Jager, Tibor, Slamanig, Daniel, Striecks, Christoph, 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, Pandu Rangan, C., Series Editor, Steffen, Bernhard, Series Editor, Terzopoulos, Demetri, Series Editor, Tygar, Doug, Series Editor, Weikum, Gerhard, Series Editor, Nielsen, Jesper Buus, editor, and Rijmen, Vincent, editor more...

Published
2018
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34. Simple and More Efficient PRFs with Tight Security from LWE and Matrix-DDH

Author

Jager, Tibor, Kurek, Rafael, Pan, Jiaxin, Hutchison, David, Editorial Board Member, Kanade, Takeo, Editorial Board Member, Kittler, Josef, Editorial Board Member, Kleinberg, Jon M., Editorial Board Member, Mattern, Friedemann, Editorial Board Member, Mitchell, John C., Editorial Board Member, Naor, Moni, Editorial Board Member, Pandu Rangan, C., Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Terzopoulos, Demetri, Editorial Board Member, Tygar, Doug, Editorial Board Member, Weikum, Gerhard, Series Editor, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Peyrin, Thomas, editor, and Galbraith, Steven, editor more...

Published
2018
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35. Short Digital Signatures and ID-KEMs via Truncation Collision Resistance

Author

Jager, Tibor, Kurek, Rafael, 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, Pandu Rangan, C., Series Editor, Steffen, Bernhard, Series Editor, Terzopoulos, Demetri, Series Editor, Tygar, Doug, Series Editor, Peyrin, Thomas, editor, and Galbraith, Steven, editor more...

Published
2018
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40. Multi-key Authenticated Encryption with Corruptions: Reductions Are Lossy

Author

Jager, Tibor, Stam, Martijn, Stanley-Oakes, Ryan, Warinschi, Bogdan, 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, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Kalai, Yael, editor, and Reyzin, Leonid, editor more...

Published
2017
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41. Simple Security Definitions for and Constructions of 0-RTT Key Exchange

Author

Hale, Britta, Jager, Tibor, Lauer, Sebastian, Schwenk, Jörg, 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, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Gollmann, Dieter, editor, Miyaji, Atsuko, editor, and Kikuchi, Hiroaki, editor more...

Published
2017
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42. 0-RTT Key Exchange with Full Forward Secrecy

Author

Günther, Felix, Hale, Britta, Jager, Tibor, Lauer, Sebastian, 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, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Coron, Jean-Sébastien, editor, and Nielsen, Jesper Buus, editor more...

Published
2017
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45. How to Generate and Use Universal Samplers

Author

Hofheinz, Dennis, Jager, Tibor, Khurana, Dakshita, Sahai, Amit, Waters, Brent, Zhandry, Mark, 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, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Cheon, Jung Hee, editor, and Takagi, Tsuyoshi, editor more...

Published
2016
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46. Public-Key Encryption with Simulation-Based Selective-Opening Security and Compact Ciphertexts

Author

Hofheinz, Dennis, Jager, Tibor, Rupp, Andy, 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, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Hirt, Martin, editor, and Smith, Adam, editor more...

Published
2016
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47. On the Impossibility of Tight Cryptographic Reductions

Author

Bader, Christoph, Jager, Tibor, Li, Yong, Schäge, Sven, 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, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Fischlin, Marc, editor, and Coron, Jean-Sébastien, editor more...

Published
2016
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48. Verifiable Random Functions from Standard Assumptions

Author

Hofheinz, Dennis, Jager, Tibor, 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, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Kushilevitz, Eyal, editor, and Malkin, Tal, editor more...

Published
2016
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49. Breaking PPTP VPNs via RADIUS Encryption

Author

Horst, Matthias, Grothe, Martin, Jager, Tibor, Schwenk, Jörg, 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, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Foresti, Sara, editor, and Persiano, Giuseppe, editor more...

Published
2016
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