Data Privacy Management, Cryptocurrencies and Blockchain Technology

1. DPM Workshop: Short Papers

   1. Privacy Policy Classification with XLNet (Short Paper)

      • Majd Mustapha, Katsiaryna Krasnashchok, Anas Al Bassit, Sabri Skhiri

      Pages 250-257

   2. Every Query Counts: Analyzing the Privacy Loss of Exploratory Data Analyses

      • Saskia Nuñez von Voigt, Mira Pauli, Johanna Reichert, Florian Tschorsch

      Pages 258-266

2. CBT Workshop: Transactions, Mining, Second Layer and Inter-bank Payments

   1. Front Matter

      Pages 267-267

      PDF

   2. TxChain: Efficient Cryptocurrency Light Clients via Contingent Transaction Aggregation

      • Alexei Zamyatin, Zeta Avarikioti, Daniel Perez, William J. Knottenbelt

      Pages 269-286

   3. VRF-Based Mining Simple Non-outsourceable Cryptocurrency Mining

      • Runchao Han, Haoyu Lin, Jiangshan Yu

      Pages 287-304

   4. On the Selection of the LN Client Implementation Parameters

      • Luis E. Oleas-Chávez, Cristina Pérez-Solà, Jordi Herrera-Joacomartí

      Pages 305-318

   5. Privacy Preserving Netting Protocol for Inter-bank Payments

      • Hisham S. Galal, Amr M. Youssef

      Pages 319-334

3. CBT Workshop: Signature Schemes, Formal Methods and Incentivization

   1. Front Matter

      Pages 335-335

      PDF

   2. Triptych: Logarithmic-Sized Linkable Ring Signatures with Applications

      • Sarang Noether, Brandon Goodell

      Pages 337-354

   3. Moderated Redactable Blockchains: A Definitional Framework with an Efficient Construct

      • Mohammad Sadeq Dousti, Alptekin Küpçü

      Pages 355-373

   4. Radium: Improving Dynamic PoW Targeting

      • George Bissias

      Pages 374-389

   5. Proof of No-Work: How to Incentivize Individuals to Stay at Home

      • Michael Bartholic, Jianan Su, Ryosuke Ushida, Yusuke Ikeno, Zhengrong Gu, Shin’ichiro Matsuo

      Pages 390-406

4. CBT Workshop: Short Papers

   1. Front Matter

      Pages 407-407

      PDF

   2. Fundamental Properties of the Layer Below a Payment Channel Network

      • Matthias Grundmann, Hannes Hartenstein

      Pages 409-420

   3. Zerojoin: Combining Zerocoin and CoinJoin

      • Alexander Chepurnoy, Amitabh Saxena

      Pages 421-436

   4. Who Let the \(\mathcal {DOGS}\) Out: Anonymous but Auditable Communications Using Group Signature Schemes with Distributed Opening

      • Marina Dehez-Clementi, Jean-Christophe Deneuville, Jérôme Lacan, Hassan Asghar, Dali Kaafar

      Pages 437-446

   5. Tracking Mixed Bitcoins

      • Tin Tironsakkul, Manuel Maarek, Andrea Eross, Mike Just

      Pages 447-457

5. Back Matter

   Pages 459-460

   PDF

This book constitutes the revised selected post conference proceedings of the 15th International Workshop on Data Privacy Management, DPM 2020, and the 4^th International Workshop on Cryptocurrencies and Blockchain Technology, CBT 2020, held in conjunction with the 25th European Symposium on Research in Computer Security, ESORICS 2020, held in Guildford, UK in September 2020.

For the CBT Workshop 8 full and 4 short papers were accepted out of 24 submissions. The selected papers are organized in the following topical headings: Transactions, Mining, Second Layer

and Inter-bank Payments. The DPM Workshop received 38 submissions from which 12 full and 5 short papers were selected for presentation. The papers focus on Second Layer, Signature Schemes, Formal Methods, Privacy, SNARKs and Anonymity.

• access control
• authentication
• communication systems
• computer networks
• computer science
• computer security
• computer systems
• cryptography
• data communication systems
• data mining
• data security
• databases
• engineering
• internet
• network protocols
• network security
• privacy
• privacy preserving
• signal processing
• telecommunication systems

• Télécom SudParis, Evry Cedex, France

  Joaquin Garcia-Alfaro

• Departament d’Enginyeria de la Informació i de les Comunicacions, Universitat Autonoma de Barcelona, Bellaterra, Spain

  Guillermo Navarro-Arribas

• Escola d’Enginyeria, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain

  Jordi Herrera-Joancomarti