PENCIL - Workshop on Privacy ENhancing Cryptography In Ledgers

Home » Events » PENCIL - Workshop on Privacy ENhancing Cryptography In Ledgers

Darmstadt, Germany – May 18, 2019 – in conjunction with EUROCRYPT 2019

News and updates

  • Submission deadline is now on February 15, 2019 AoE.
  • Thanks to our sponsors, we can waive the registration fee for (some) students! For more details, see below!

The Workshop

Blockchain and distributed ledger technologies (DLTs) have emerged as one of the most revolutionary developments in recent years, with the goal of eliminating centralized intermediaries and installing distributed trusted services. They facilitate trustworthy trades and exchanges over the Internet, power cryptocurrencies, ensure transparency for documents, and much more.

Although based on cryptographic techniques at their core, the currently deployed DLTs do not address privacy. Indeed, the very idea of a public ledger that stores a verifiable record of transactions at first appears inherently incompatible with the privacy requirements of many potential applications, which handle sensitive data such as trade secrets and personal information. New cryptographic techniques and protocols are therefore needed to protect the data, facilitate these applications, and make DLTs deliver on their promises.

The purpose of the proposed workshop on Privacy-Enhancing Cryptography in Ledgers is to bring together researchers and practitioners working in cryptography, security, and distributed systems from academia and industry, who are interested in cryptographic techniques for improving the privacy of blockchains and their protocols. The main goal is to foster information exchange between attendees from the different areas, to present new developments in cryptographic schemes and protocols, as well as applications and challenges in order to stimulate both use of new cryptographic techniques to improve DLT-based systems as well as future cryptographic research targeting applications in DLT.

Call for PAPERS

The workshop on Privacy-Enhancing Cryptography in Ledgers aims at discussing questions of confidentiality, privacy, scalability, and integrity in the context of distributed ledger technologies and cryptocurrencies. The workshop solicits submissions describing current work addressing decentralized cryptocurrencies and distributed ledger technologies, including cryptographic schemes and techniques, analytical results, work on systems, and/or position papers, with a focus on the area of privacy and confidentiality.

Topics of interest include, but are not limited to

  • Techniques for transaction confidentiality in distributed ledger technologies
  • Anonymity and privacy in distributed ledgers
  • Cryptographic schemes and protocols with applications in distributed ledgers
  • Consensus mechanisms for distributed ledger technologies
  • Incentivation and distributed consensus among selfish nodes
  • Privacy-preserving smart contracts and cryptocurrencies
  • Trust models for smart contracts
  • Applications of blockchains, such as in secure computation
  • Systems implementing privacy-preserving distributed ledgers and blockchains
  • Reports on practical deployments on privacy-preserving distributed ledger technologies

Submissions should be written in English, formatted in single-column letter-sized or A4-sized format, and prepared as a PDF file. Submissions have to include: a title, author names and affiliations, and must not exceed eight pages, including references. Since there will be no proceedings, the eight pages are expected to give a precise idea of what will be presented at the workshop. Additional material such as a more detailed description or presentation slides may be added in an optional appendix. Papers must be submitted electronically.

Abstracts of the presentations will be distributed to the workshop participants. As there will be no proceedings, presenting work at PENCIL does not conflict with prior, concurrent, or subsequent publication of the material in any other conference or journal.

The submission server is now open!

Keynote talks

The program of the workshop will include 3 keynote talks given by 

Juan Garay Texas A&M University
Jens Groth DFINITY
Charles Hoskinson IOHK

Planned schedule

Submission server opens January 2, 2019
Paper submission deadline February 15, 2019, 23:59:59 AoE (was Feb 10)
Notification of acceptance March 18, 2019 (was March 3)
Workshop May 18, 2019


Björn Tackmann (, IBM Research – Zurich, Switzerland
Ivan Visconti (, University of Salerno, Italy

Program Committee

Christian Badertscher ETH Zürich
Fabrice Benhamouda IBM Research – Yorktown
Benedikt Bünz Stanford University
Christian Cachin University of Berne
Melissa Chase Microsoft Research
Sherman Chow Chinese University of Hong Kong
Alexandra Dimitrienko University of Würzburg
Maria Dubovitskaya DFINITY
Sebastian Faust TU Darmstadt
Georg Fuchsbauer ENS Paris
Juan Garay Texas A&M University
Peter Gaži IOHK Research
Vincenzo Iovino University of Luxembourg
Aggelos Kiayias University of Edinburgh
Markulf Kohlweiss University of Edinburgh
Helger Lipmaa University of Tartu
Mark Manulis University of Surrey
Ian Miers Johns Hopkins University
Jesper Buus Nielsen Aarhus University
Andres Ojamaa Guardtime AS
Miyako Ohkubo NICT
Alessandra Scafuro North Carolina State University 
Berry Schoenmakers TU Eindhoven
Björn Tackmann (co-chair) IBM Research – Zürich
Daniele Venturi Sapienza University of Rome
Ivan Visconti (co-chair) University of Salerno
Hong-Sheng Zhou Virginia Commonwealth University

Registration and venue

The workshop takes place in connection with the EUROCRYPT 2019 conference. Registration will in February via the EUROCRYPT registration site.




FENTEC Project is this week's Project of the Week from 30 March - 3 April 2020.

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