S7 - Secure and Scalable Blockchain Technology

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S7 – Secure and Scalable Blockchain Technology

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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.

Researchers

Poulami Das
Chair of Applied Cryptography

Research Interests:

  • Provable security of cryptographic protocols

Lisa Eckey
Applied Cryptography

Research Interests:

  • Provable security
  • Blockchain technology
  • Consensus mechanisms
  • Smart contract security
  • Fair exchange

Andreas Erwig
Applied Cryptography

Research Interests:

  • Security of cryptographic protocols on blockchain technologies
  • Smart contracts

Dr. Julia Hesse
Chair of Applied Cryptography

Research Interests:

  • Provable security of key exchange protocols

Kristina Hostakova
Applied Cryptography

Research Interests:

  • Provable security of Blockchain Protocols
  • Non-malleable codes

Clara Paglialonga
Applied Cryptography

Research Interests:

  • Provable security against physical attacks with particular focus on masking schemes
  • Private circuits
  • Randomness optimization

Sebastian Stammler
Computational Biology and Simulation Group

Research Interests:

  • Genomic privacy
  • Developing privacy preserving protocols on genomic data
  • Anonymization techniques for databases

Publications

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

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

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

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