List of accepted papers:
- Wenting Li, Sebasiten Andreina, Jens-Matthias Bohli and Ghassan Karame. "Securing Proof-of-Stake Blockchain Protocols"
- Daniel Augot, Hervé Chabanne, Thomas Chenevier, William George and Laurent Lambert. "A User-centric System for Verified Identities on the Bitcoin Blockchain"
- Michael Fröwis and Rainer Böhme. "In Code We Trust? Measuring the Control Flow Immutability of All Smart Contracts Deployed on Ethereum"
- Elias Rohrer, Jann-Frederik Laß and Florian Tschorsch. "Towards a Concurrent and Distributed Route Selection for Payment Channel Networks"
- A. Pinar Ozisik, Gavin Andresen, George Bissias, Amir Houmansadr and Brian N. Levine. "Graphene: A New Protocol for Block Propagation Using Set Reconciliation"
- Dmitry Meshkov, Alexander Chepurnoy and Marc Jansen. "Revisiting Difficulty Control for Blockchain Systems"
- Aljosha Judmayer, Alexei Zamyatin, Nicholas Stifter, Artemios Voyiatzis and Edgar Weippl. "Merged Mining: Curse or Cure?"
- Sarah Azouvi, Mustafa Al-Bassam and Sarah Meiklejohn. "Who Am I? Secure Identity Registration on Distributed Ledgers"
- Björn Tackmann. "Secure Event Tickets on a Blockchain"
- Patrick McCorry, Ethan Heilman and Andrew Miller. "Atomically Trading with Roger: Gambling on the success of a hardfork"
08:00 - 09:00 Registration
09:00 - 09:30 General Welcome
09:30 - 10:30 Keynote speaker(Chair: Hannes Hartenstein)
A Blockchain with Strong Consistency?
By Roger Wattenhofer.
10:30 - 11:00 Coffee Break
11:00 - 12:30 Session 1: Consensus and smart contracts(Chair: Jordi Herrera-Joancomartí)
11:00-11:30 - Securing Proof-of-Stake Blockchain Protocols.
By Wenting Li, Sebasiten Andreina, Jens-Matthias Bohli and Ghassan Karame.
11:30-12:00 - Merged Mining: Curse or Cure?
By Aljosha Judmayer, Alexei Zamyatin, Nicholas Stifter, Artemios Voyiatzis and Edgar Weippl.
12:00-12:30 - Atomically Trading with Roger: Gambling on the success of a hardfork.
By Patrick McCorry, Ethan Heilman and Andrew Miller.
12:30 - 14:00 Lunch
14:00 - 15:30 Session 2: Smart contracts and blockchain identity(Chair: Mariusz Nowostawski)
14:00-14:30 - In Code We Trust? Measuring the Control Flow Immutability of All Smart Contracts Deployed on Ethereum.
By Michael Fröwis and Rainer Böhme.
14:30-15:00 - Who Am I? Secure Identity Registration on Distributed Ledgers.
By Sarah Azouvi, Mustafa Al-Bassam and Sarah Meiklejohn.
15:00-15:30 - A User-centric System for Verified Identities on the Bitcoin Blockchain.
By Daniel Augot, Hervé Chabanne, Thomas Chenevier, William George and Laurent Lambert.
15:30 - 16:00 Coffee Break and poster session.
16:00-17:30 Session 3: Short papers(Chair: Rainer Böhme)
16:00-16:20 - Towards a Concurrent and Distributed Route Selection for Payment Channel Networks.
By Elias Rohrer, Jann-Frederik Laß and Florian Tschorsch.
16:20-16:40 - Graphene: A New Protocol for Block Propagation Using Set Reconciliation.
By A. Pinar Ozisik, Gavin Andresen, George Bissias, Amir Houmansadr and Brian N. Levine.
16:40-17:00 - Revisiting Difficulty Control for Blockchain Systems.
By Dmitry Meshkov, Alexander Chepurnoy and Marc Jansen.
17:00-17:20 - Secure Event Tickets on a Blockchain.
By Björn Tackmann.
17:20 - 17:30 Farewell
To register to CBT 2017, please follow the general registration instructions for ESORICS 2017 (kindly specify CBT when registering to the registration service).
Link to ESORICS 2017 registration page
The workshop will be held in Oslo, Norway, in conjunction with the 22nd annual European research event in Computer Security (ESORICS 2017) symposium.
More information about the venue is available on the ESORICS 2017 website at http://www.ntnu.edu/web/esorics2017/venue.
Travel and accommodation information is also available from the ESORICS 2017 website at http://www.ntnu.edu/web/esorics2017/travel-accomodation/
Aims and Scope
Since the appearance of Bitcoin in 2009, a plethora of new cryptocurrencies and other blockchain based systems have been deployed with different success. While some of them are slightly different copies of Bitcoin, other ones propose interesting improvements or new usages of the underlying blockchain technology. However, the novelty of such technologies is often tied with rapid developments and proof-of-concept software, and rigorous scientific analyses of the proposed systems are often skipped.
This workshop aims to provide a forum for researchers in this area to carefully analyze current systems and propose new ones in order to create a scientific background for a solid development of new cryptocurrencies and blockchain technology systems.
The main topics include (but are not limited to):
- Anonymity and privacy in cryptocurrencies.
- Cryptocurrency based trust systems.
- Security analysis of existing cryptocurrencies.
- Formal threat models in cryptocurrency systems.
- Improvement proposals for existing cryptocurrencies.
- P2P network cryptocurrencies analysis.
- Private transactions in blockchain based systems.
- Consensus mechanisms: proof-of-work, proof of stake, proof of burn, proof-of-useful-work.
- New usages of the blockchain technology.
- Scalability solutions for blockchain systems.
- Smart contracts.
Hannes Hartenstein, Karlsruher Institut für Technologie, Germany
Email: hannes.hartenstein [at] kit [dot] edu
Jordi Herrera-Joancomartí, Universitat Autònoma de Barcelona, Catalonia
Email: jordi.herrera [at] uab [dot] cat
Rainer Böhme - Universität Innsbruck (Austria)
Jeremy Clark - Concordia University (Canada)
Christian Decker - Blockstream (Switzerland)
Joaquín García-Alfaro - IMT (France)
Arthur Gervais - ETH (Switzerland)
Man Ho Au - The Hong Kong Polytechnic University (Hong Kong)
Ghassan Karame - NEC Research (Germany)
Stefan Katzenbeisser - Technische Universität Darmstadt (Germany)
Patrick McCorry - UCL (UK)
Shin'ichiro Matsuo - BSafe.network (USA) and Keio University (Japan)
Guillermo Navarro - UAB (Catalonia)
Mariusz Nowostawski - NTNU (Norway)
Cristina Pérez-Solà - UAB (Catalonia)
Jaume Pernas - Blockchain (UK)
Roger Wattenhofer - ETH (Switzerland)