News

POSE: Practical Off-chain Smart Contract Execution by Tommasso Frassetti, Patrick Jauernig, David Koisser, David Kretzler, Benjamin Schlosser, Sebastian Faust, Ahmad-Reza Sadeghi

Putting the Online Phase on a Diet: Covert Security from Short MACs by Sebastian Faust, Carmit Hazay, David Kretzler, Benjamin Schlosser

TU Professor Sebastian Faust's cryptography project receives ERC grant funding

The European Research Council (ERC) is providing around two million euros of funding for a project at the Technical University of Darmstadt that aims to improve decentralised blockchain technologies. The project “CRYPTOLAYER – Cryptography for Second Layer Blockchain Protocols” by Computer Science professor Sebastian Faust is being supported with a renowned ERC Consolidator Grant for a term of five years. This will further strengthen TU Darmstadt's activities in cryptography and IT security research.

by Sebastian Faust, Juliane Krämer, Maximilian Orlt, Patrick Struck

by Gianluca Brian, Sebastian Faust, Elena Micheli , Daniele Venturi

by Francesco Berti, Shivam Bhasin, Jakub Breier, Xiaolu Hou, Romain Poussier, François-Xavier Standaert, Balasz Udvarhely

by Poulami Das, Julia Hesse, Anja Lehmann

by Sebastian Faust, Carmit Hazay, David Kretzler, Benjamin Schlosser,

by Orfeas Thyfronitis Litos and Zeta Avarikioti

by Francesco Berti, Chun Guo, Thomas Peters, François-Xavier Standaert

by Lukas Aumayr, Oguzhan Ersoy, Andreas Erwig, Sebastian Faust, Kristina Hostáková, Matteo Maffei, Pedro Moreno-Sanchez and Siavash Riahi

by Gaëtan Cassiers, Sebastian Faust, Maximilian Orlt, François-Xavier Standaert

by Shweta Agrawal (IIT Madras), Monosij Maitra (TU-D), Vempati Narasimha Sai (IIT Madras), Shota Yamada (AIST, Japan)

by Poulami Das, Andreas Erwig, Sebastian Faust, Julian Loss, Siavash Riahi

by Sebastian Faust, Carmit Hazay, David Kretzler, Benjamin Schlosser

By Lukas Aumayr, Oğuzhan Ersoy, Andreas Erwig, Sebastian Faust, Kristina Hostáková , Matteo Maffei and Siavash Riahi

by Andreas Erwig, Sebastian Faust, Kristina Hostáková, Monosij Maitra and Siavash Riahi

by Gilles Barthe, Marc Gourjon, Benjamin Gregoire, Maximilian Orlt, Clara Paglialonga, Lars Porth

by Arnold Abromeit, Florian Bache, Leon A. Becker, Marc Gourjon, Tim Güneysu, Sabrina Jorn, Amir Moradi, Maximilian Orlt, Falk Schellenberg

The authors of this paper are: Stefan Dziembowski, Grzegorz Fabiański, Sebastian Faust, Siavash Riahi

The paper is accepted at “ITCS 2021”

“Responsible Vulnerability Disclosure in Cryptocurrencies”

The article discusses the challenges of disclosing bugs and dealing with disclosures in open and distributed cryptocurrencies. Bugs in blockchain based systems can lead to severe security and privacy problems. Sometimes, these issues are resolved without much fanfare following a disclosure by the individual who found the hole. In other cases, they result in costly losses due to theft, exploits, unauthorized coin creation, and destruction. These experiences provide regular fodder for outrageous news headlines. In this article, we focus on the disclosure process itself, which presents unique challenges compared to other software projects.

“Cost Fairness for Blockchain-Based Two-Party Exchange Protocols”

Blockchains can guarantee fairness during the exchange of digital goods such that in a two-party exchange no one is defrauded by a malicious opponent.

“Deterministic Wallets in a Quantum World”

Most blockchain solutions are susceptible to quantum attackers as they rely on cryptography that is known to be insecure in the presence of quantum adversaries. In this work we advance the study of quantum resistant blockchain solutions by giving a quantum resistant construction of a deterministic wallet scheme.

The paper “Fuzzy Asymmetric Password-Authenticated Key Exchange” is accepted at “Asiacrypt 2020”. The authors of this paper are Andreas Erwig, Julia Hesse, Maximilian Orlt and Siavash Riahi.

Success for CYSEC and CROSSING researcher

Kristina Hostáková – Ph.D. student from the Applied Cryptography research group at TU Darmstadt – was selected to receive the Women Techmakers Scholarship for computer science Scholarship sponsored by Google as one of only 20 persons from the EMEA region.