Workshop on Cryptographic Tools for Blockchains

— affiliated with Eurocrypt 2024 —

Zürich, Switzerland, on 25th of May

Over the last decade, projects working in the area of blockchains and distributed ledger technology (DLT) have developed many cryptographic protocols to market readiness which had existed almost exclusively in the academic research domain before. Quite arguably, significant recent advances in areas like non-interactive zero-knowledge proofs or threshold cryptography are directly or indirectly driven by the application-level requirements (and sometimes funding) coming from that space. The DLT space itself is, however, fractured, with different DLT ecosystems based on different philosophies and assumptions, and projects solving similar problems in very different ways.

The Workshop on Cryptographic Tools for Blockchain is a one-day event affiliated with Eurocrypt 2024 and aims to bring researchers working on cryptographic problems in different DLT ecosystems and related to different platforms together to discuss the latest approaches and results. The workshop will focus on submissions that cover cryptographic tools for DLTs, which includes but is not limited to the areas of non-interactive zero-knowledge proofs, threshold cryptography, identity, and multi-party computation, as well as the use of such cryptographic tools in DLT protocols.


Sandro Coretti-Drayton, IOG —
Christian Matt, Primev —
Björn Tackmann, DFINITY —

Program committee

Call for papers (Easychair version)

The workshop on cryptographic tools for blockchains aims at discussing cryptographic mechanisms and their use in distributed ledger technologies. The workshop solicits submissions describing current work addressing decentralized cryptocurrencies and distributed ledger technologies, including cryptographic schemes and techniques as well as their applications in blockchain protocols, analytical results, work on systems, and/or position papers.

Topics of interest include, but are not limited to the following techniques and their applications in blockchains:

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, excluding references. Additional material such as a more detailed description or presentation slides may be added in an optional appendix. Papers must be submitted via the submission page.

Update: To ease the submission process, the page limit has been removed. Please submit papers in a form such that reviewers can evaluate their suitability within a reasonable amount of time.

There will not be formal proceedings or other forms of official publications of the accepted papers. Authors are encouraged to submit works already published at or submitted to other venues.

Paper submission March 3, 2024, 23:59:59 AoE
March 10, 2024, 23:59:59 AoE
Notification of acceptance March 25, 2024
Workshop day May 25, 2024

Workshop program

The program for the workshop can be found below. Speakers are marked in bold.

Download program with abstracts

8:30–9:00 Registration
Invited Talk 1
Unlinkable Policy-Compliant Signatures for Compliant and Decentralized Anonymous Payments
Christian Badertscher, Mahdi Sedaghat, and Hendrik Waldner
SyRA: Sybil-Resilient Anonymous Signatures with Applications to Decentralized Identity
Elizabeth Crites, Aggelos Kiayias, and Amirreza Sarencheh
10:30–11:00 Coffee break
Cicada: A framework for private non-interactive on-chain auctions and voting
Noemi Glaeser, István András Seres, Michael Zhu, and Joseph Bonneau
Rapidash: Atomic Swaps Secure under User-Miner Collusion
Hao Chung, Elisaweta Masserova, Elaine Shi, and Sri Aravinda Krishnan Thyagarajan
PriDe CT: Towards Public Consensus, Private Transactions, and Forward Secrecy in Decentralized Payments
Yue Guo, Harish Karthikeyan, and Antigoni Polychroniadou
10 years of implementation of an usable group signature library: contributing to the design of decentralized identity management systems
David Arroyo, Sergio Chica, Jesús Díaz, and Andrés Marín-López
12:30–13:30 Lunch break
Invited Talk 2
Naysayer proofs
Istvan Andras Seres, Noemi Glaeser, and Joseph Bonneau
vetKeys: How a Blockchain Can Keep Many Secrets
Andrea Cerulli, Aisling Connolly, Gregory Neven, Franz-Stefan Preiss, and Victor Shoup
15:00–15:30 Coffee break
Improved YOSO Randomness Generation with Worst-Case Corruptions
Chen-Da Liu-Zhang, Elisaweta Masserova, João Ribeiro, Pratik Soni, and Sri Aravindakrishnan Thyagarajan
Fait Accompli Committee Selection: Improving the Size-Security Tradeoff of Stake-Based Committees
Peter Gaži, Aggelos Kiayias, and Alexander Russell
Practical Provably Secure Flooding for Blockchains
Chen-Da Liu-Zhang, Christian Matt, Ueli Maurer, Guilherme Rito, and Søren Eller Thomsen
Updatable Privacy-Preserving Blueprints
Bernardo David, Felix Engelmann, Tore Frederiksen, Markulf Kohlweiss, Elena Pagnin, and Mikhail Volkhov