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Call for Failures!

CFail, The Conference for Failed Approaches and Insightful Losses in Cryptology, will hold its fourth edition this year as an affiliated event to Crypto 2022. This will be a hybrid event, supporting both in-person and remote participation. Our goal is to share insights and build a collective experience within the cryptographic community about how and why good ideas sometimes fail, and what we can learn from those failures. 

Original contributions in all fields of cryptology are sought detailing currently unsuccessful but insightful attempts to:

  • Prove or disprove a conjecture,

  • Design or break a cryptographic algorithm,

  • Simplify a cryptographic algorithm or concept,

  • Implement a cryptosystem,

  • Formulate a new security definition or reduction,

  • Systemize a collection of ad-hoc attacks,

  • Or any other task that is part of the practice of theoretical or applied cryptology, broadly construed.

Do you have insightful and exciting work sitting in a drawer somewhere because it never quite panned out or are you willing to share the series of failed attempts you went through before reaching a successful result? 



​Submission deadline: May 1, 2022, 23:59 AoE

Notification deadline: June 15, 2022

Conference: August, 13, 2022

Submission page:


Instructions to Authors:

For this year's edition we solicit submissions of extended abstracts consisting of up to 5 pages in any legible format. Submissions should begin with a title, followed by the names, affiliations, and contact information of all authors. Submissions should be uploaded to EasyChair in PDF form to be reviewed and judged by the Program Committee. It is up to the authors to decide how they choose to engage the reviewing readers. Clarity of exposition, educational value, and the ability to generalize conclusions into a wider setting will be strongly taken into account.

To allow for the submission of papers published elsewhere there will be no formal proceedings. Instead, accepted abstracts will be made available online before the conference. Authors of such submissions should make sure that they are re-framed in line with CFail's goals. In addition to this and to encourage the submission of works that would normally be harder to publish elsewhere (e.g., negative results) we partnered with the Computer Journal ( After the conference, authors of eligible accepted abstracts will be invited to submit a full version of their work to be reviewed for potential publication in the journal. 

Authors of accepted abstracts will be given a 20-30 minute slot for presenting their submission at the conference followed by a 5-10 minute Q\&A. Speakers and participants will not be required to travel physically and talks will be recorded and made available subject to speaker permission. 

Please contact the general chair at or the program chair at with any inquiries. 


The CFAIL 2022 Program Committee


Tomer Ashur, TU Eindhoven and KU Leuven

Shi Bai, Florida Atlantic University

Marshall Ball, NYU

Allison Bishop, Proof Trading (General Chair)

Chitchanok Chuengsatiansup, The University of Adelaide

Orr Dunkelman, University of Haifa

Daniel Escudero, JP Morgan AI Research

Siyao Guo, NYU Shanghai

Divya Gupta, Microsoft Research India

Swee-Huay Heng, Multimedia University Malaysia

Luke Kowalczyk, IEX Group, Inc.

Tal Moran, Reichman University

Nicky Mouha, Strativia

Carla Rafols, Universitat Pompeu Fabra

Reihaneh Safavi-Naini, University of Calgary

Adam Smith, Boston University

Michael Walfish, NYU

Mor Weiss, Bar-Ilan University (Program Chair)

David Wu, UT Austin

Yuval Yarom, The University of Adelaide

Mark Zhandry, NTT Research & Princeton University

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