Project Areas

S – Solutions

S7 – Secure and Scalable Blockchain Technology

This project will address the current scalability challenges of decentralized blockchain technology. The overall goal is to develop protocols that achieve similar efficiency as centralized systems, while at the same time guaranteeing strong security against realistic adversaries. To accomplish this goal, the project will investigate two main directions. First, it will develop novel consensus mechanisms with significantly improved transaction throughput and reduced latency. Second, the project will design off-chain protocols, which support high transaction throughput by keeping the vast majority of transactions off-chain.

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Principal Investigators

  Name Working area(s) Contact
Prof. Sebastian Faust
Applied Cryptography
S7, P2
+49 6151 16-25710
S4|14 3.2.05
Prof. Ahmad-Reza Sadeghi
System Security
P3, S2, S7
+49 6151 16-25328
S2|20 305

Researchers

  Name Contact
Poulami Das
Applied Cryptography
+49 6151 16-25727
S2|20 3115
Lisa Eckey
Applied Cryptography
+49 6151 16-25717
S1|03 1
Andreas Erwig
Applied Cryptography
+49 6151 16-25719
S2|20 314
Kristina Hostáková
Applied Cryptography
+49 6151 16-25714
S2|20 315
David Kretzler
Applied Cryprography
+49 6151 16-75264
S2|20 316
Max Orlt
Applied Cryptography
+49 6151 16-25721
S2|20 313
Clara Paglialonga
Applied Cryptography
+49 6151 16-25713
S2|20 313
Siavash Riahi
Applied Cryptography
+49 6151 16-25721
S2|20 314
Benjamin Schlosser
+49 6151 16-25728
S2|20 316
Sebastian Stammler
Applied Cryptography
+49 6151 16-25722
S1|03 1

Publications

Das, Poulami and Faust, Sebastian and Loss, Julian (2019):
A Formal Treatment of Deterministic Wallets.
In: ACM CCS 2019 - Symposium on Computer and Communications Security, London, UK, November, 11th -15th, [Conference or Workshop Item]

Das, Poulami and Eckey, Lisa and Frassetto, Tommaso and Gens, David and Hostáková, Kristina and Jauernig, Patrick and Faust, Sebastian and Sadeghi, Ahmad-Reza (2019):
FastKitten: Practical Smart Contracts on Bitcoin.
In: 28th USENIX Security Symposium, Santa Clara, CA, USA, 14.-16.08.2019, [Conference or Workshop Item]

Dziembowski, Stefan and Eckey, Lisa and Faust, Sebastian and Hesse, Julia and Hostakova, Kristina (2019):
Multiparty Virtual State Channels.
In: Eurocrypt 2019, Darmstadt, IACR, In: 38th Annual International Conference on the Theory and Applications of Cryptographic Techniques, [Online-Edition: https://eurocrypt.iacr.org/2019/],
[Conference or Workshop Item]

Das, Poulami and Eckey, Lisa and Frassetto, Tommaso and Gens, David and Hostakova, Kristina and Jauernig, Patrick and Faust, Sebastian and Sadeghi, Ahmad-Reza (2019):
FastKitten: Practical Smart Contracts on Bitcoin.
Cryptology ePrint Archive, Report 2019/154, [Online-Edition: https://eprint.iacr.org/2019/154],
[Report]

Dziembowski, Stefan and Eckey, Lisa and Faust, Sebastian and Malinowski, Daniel (2019):
Perun: Virtual Payment Hubs over Cryptocurrencies.
IEEE Computer Society, In: 39th IEEE Symposium on Security and Privacy, THE HYATT REGENCY, SAN FRANCISCO, CA, MAY 21-23, 2018, pp. 327-340, [Online-Edition: https://www.ieee-security.org/TC/SP2018/],
[Conference or Workshop Item]

Dziembowski, Stefan and Faust, Sebastian and Zebrowski, Karol (2019):
Simple Refreshing in the Noisy Leakage Model.
IACR, In: The 25th Annual International Conference on the Theory and Application of Cryptology and Information Security, Kobe, Japan, 8.12.-12.12. 2019, [Conference or Workshop Item]

Dziembowski, Stefan and Eckey, Lisa and Faust, Sebastian (2018):
FairSwap: How to fairly exchange digital goods.
In: Proceedings of the 2018 ACM SIGSAC Conference on Computer and Communications Security, ACM, In: 25th ACM Conference on Computer and Communications Security (CCS), Toronto, Canada, 15-19 October 2018, [Online-Edition: https://www.sigsac.org/ccs/CCS2018/],
[Conference or Workshop Item]

Dziembowski, Stefan and Faust, Sebastian and Hostakova, Kristina (2018):
General State Channel Networks.
2018In: Proceedings of the 2018 ACM SIGSAC Conference on Computer and Communications Security, ACM, In: 25th ACM Conference on Computer and Communications Security (CCS), Toronto, Canada, 15-19 October 2018, [Online-Edition: https://www.sigsac.org/ccs/CCS2018/],
[Conference or Workshop Item]

du Crest de Villeneuve, Come (2018):
Evaluation of the Efficiency of different Architectures and Pathfinding Algorithms.
TU Darmstadt, [Master Thesis]

Amler, Hendrik (2018):
Evaluation of payment channel networks for micropayments.
TU Darmstadt, [Master Thesis]

Varky, Jacek (2018):
TeePay – Using Trusted Execution Environments for Off-chain Payment.
TU Darmstadt, [Master Thesis]

van der Wijden, Marius (2018):
Payment and State Channels in practice.
TU Darmstadt, [Master Thesis]

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