Data Privacy Management, Cryptocurrencies and Blockchain Technology

1. Front Matter

   Pages i-xiii

   PDF

2. DPM Workshop: Risks and Privacy Preservation

   1. Front Matter

      Pages 1-1

      PDF

   2. Best Security Measures to Reduce Cyber-Incident and Data Breach Risks

      • Hiroaki Kikuchi, Michihiro Yamada, Kazuki Ikegami, Koji Inui

      Pages 3-19

   3. Synthesizing Privacy-Preserving Location Traces Including Co-locations

      • Jun Narita, Yayoi Suganuma, Masakatsu Nishigaki, Takao Murakami, Tetsushi Ohki

      Pages 20-36

3. DPM Workshop: Policies and Regulation

   1. Front Matter

      Pages 37-37

      PDF

   2. Quantitative Rubric for Privacy Policy Analysis

      • Paul O’Donnell, Joe Harrison, Joshua Lyons, Lauren Anderson, Lauren Maunder, Sarah Ramboyong et al.

      Pages 39-54

   3. Rethinking the Limits of Mobile Operating System Permissions

      • Brian Krupp

      Pages 55-69

   4. Interdependent Privacy Issues Are Pervasive Among Third-Party Applications

      • Shuaishuai Liu, Barbara Herendi, Gergely Biczók

      Pages 70-86

4. DPM Workshop: Privacy and Learning

   1. Front Matter

      Pages 87-87

      PDF

   2. SPGC: An Integrated Framework of Secure Computation and Differential Privacy for Collaborative Learning

      • Kazuki Iwahana, Naoto Yanai, Jason Paul Cruz, Toru Fujiwara

      Pages 89-105

   3. A k-Anonymised Federated Learning Framework with Decision Trees

      • Saloni Kwatra, Vicenç Torra

      Pages 106-120

   4. Anonymizing Machine Learning Models

      • Abigail Goldsteen, Gilad Ezov, Ron Shmelkin, Micha Moffie, Ariel Farkash

      Pages 121-136

5. DPM Workshop: Short Papers

   1. Front Matter

      Pages 137-137

      PDF

   2. A New Privacy Enhancing Beacon Scheme in V2X Communication

      • Takahito Yoshizawa, Dave Singelée, Bart Preneel

      Pages 139-151

   3. Next Generation Data Masking Engine

      • Micha Moffie, Dan Mor, Sigal Asaf, Ariel Farkash

      Pages 152-160

   4. Towards a Formal Approach for Data Minimization in Programs (Short Paper)

      • Florian Lanzinger, Alexander Weigl

      Pages 161-169

6. CBT Workshop: Mining, Consensus and Market Manipulation

   1. Front Matter

      Pages 171-171

      PDF

   2. Virtual ASICs: Generalized Proof-of-Stake Mining in Cryptocurrencies

      • Chaya Ganesh, Claudio Orlandi, Daniel Tschudi, Aviv Zohar

      Pages 173-191

   3. Asymmetric Asynchronous Byzantine Consensus

      • Christian Cachin, Luca Zanolini

      Pages 192-207

   4. Using Degree Centrality to Identify Market Manipulation on Bitcoin

      • Daiane M. Pereira, Rodrigo S. Couto

      Pages 208-223

This book constitutes the refereed proceedings and revised selected papers from the 16th International Workshop on Data Privacy Management, DPM 2021, and the 5th International Workshop on Cryptocurrencies and Blockchain Technology, CBT 2021, which were held online on October 8, 2021, in conjunction with ESORICS 2021. The workshops were initially planned to take place in Darmstadt, Germany, and changed to an online event due to the COVID-19 pandemic.

The DPM 2021 workshop received 25 submissions and accepted 7 full and 3 short papers for publication. These papers were organized in topical sections as follows: Risks and privacy preservation; policies and regulation; privacy and learning.

For CBT 2021 6 full papers and 6 short papers were accepted out of 31 submissions. They were organized in topical sections as follows: Mining, consensus and market manipulation; smart contracts and anonymity.

• anonymity and untracability
• artificial intelligence
• computer security
• consensus mechanisms
• cryptography
• cryptography and cryptanalysis
• cyber-attacks
• data security
• distributed computer systems
• network protocols
• network security
• parallel processing systems
• personal data access control
• privacy
• private data
• second layer and off-chain transactions
• smart contracts
• transparency, privacy assessment and trust
• trust authorization

• Institut Polytechnique de Paris, Palaiseau, France

  Joaquin Garcia-Alfaro

• Universitat Politècnica de Catalunya, Barcelona, Spain

  Jose Luis Muñoz-Tapia, Miguel Soriano

• Universitat Autonoma de Barcelona, Bellaterra, Spain

  Guillermo Navarro-Arribas