orcid.org/0000-0002-8176-690X

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Brief Biography | Research Interests | Publications | My Books | Videos | Professional Activities | Teaching | Students | Curriculum Vitae

Notice for students interested in working with me: I am on leave from the university, and so am not taking any students at this time.

Brief Biography

I am a professor in the Department of Computer Science at Bar Ilan University. Prior to coming to Bar-Ilan in 2004, I was a Raviv Postdoctoral fellow in the Cryptographic Research Group at the IBM T.J.Watson Research Center. I received my Ph.D. in 2002 from the Weizmann Institute of Science, under the supervision of Oded Goldreich and Moni Naor.

I was the co-founder of a company called Unbound Security that uses secure multiparty computation to protect cryptographic keys and secrets of all types. In January 2022, Unbound Security was acquired by Coinbase.

Research Interests

I have prepared a page with resources on how to get started with studying secure multiparty computation (MPC).

More about my research projects can be found here.

I am one of the co-inventors of the AES-GCM-SIV mode of operation; information can be found here.

See the Cryptography Research Group homepage for more information about cryptography research and activities at Bar-Ilan.

Publications (all available online)

• Papers in chronological order
• My Ph.D. Thesis: On the Composition of Secure Multi-Party Protocols

Videos

• Introduction to MPC, virtual meetup, January 2021.
• Introduction to Cryptography (in Hebrew), course given at Bar-Ilan University in 2018-2019.
• Better Bounds for Block Cipher Modes of Operation via Nonce-Based Key Derivation (30 minutes), ACM CCS 2017 (winner of best paper award).
• Fast Secure Two Party ECDSA Signing (22 minutes), CRYPTO conference, 2017.
• High-Throughput Secure Three-Party Computation with an Honest Majority (45 minutes), I-CORE day, 2017.
• High-Throughput Secure Three-Party Computation with an Honest Majority - Breaking the Billion-Gate Per-Second Barrier (17 minutes), Real-World Crypto (RWC) conference, 2017.
• Fast Garbling of Circuits Under Standard Assumptions (35 minutes), Simons Institute Workshop on Securing Computation, 2015.
• Secure Computation Tutorial: Definitions and Oblivious Transfer (90 minutes), 5th BIU Winter School - Advances in Practical Secure Computation, 2015.
• Secure Computation Tutorial: Efficient Zero-Knowledge (53 minutes), 5th BIU Winter School - Advances in Practical Secure Computation, 2015.
• Secure Computation Tutorial: Security Against Malicious Adversaries (40 minutes), 5th BIU Winter School - Advances in Practical Secure Computation, 2015.
• Optimizing Yao and GMW for Semi Honest Adversaries (53 minutes), 5th BIU Winter School - Advances in Practical Secure Computation, 2015.
• Invited Talk: Efficient Two-Party Secure Computation for Semi-Honest and Malicious Adversaries (60 minutes), Microsoft Workshop on Applied Multiparty Computation, 2014.
• Secure Two-Party Computation in Practice: Part 1 (60 minutes), Part 2 (50 minutes), and Part 3 (40 minutes). Technion Summer School on Security, 2013.
• Fast Cut-and-Choose Based Protocols for Malicious and Covert Adversaries (11 minutes), CRYPTO conference, 2013.
• Secure Computation on the Web: Computing without Simultaneous Interaction (20 minutes), CRYPTO conference, 2011.
• The IPS Compiler: Optimizations, Variants and Concrete Efficiency (20 minutes), CRYPTO conference, 2011.
• Secure Computation: Background and Definitions (90 minutes), 1st BIU Winter School - Secure Computation and Efficiency, 2011.
• The Yao Construction and its Proof of Security (70 minutes), 1st BIU Winter School - Secure Computation and Efficiency, 2011.
• Secure Two-Party Computation for Malicious Adversaries (90 minutes), 1st BIU Winter School - Secure Computation and Efficiency, 2011.
• Sigma Protocols and Zero Knowledge (85 minutes), 1st BIU Winter School - Secure Computation and Efficiency, 2011.

Professional Activities

Member of the ERC starting grant panel (PE6 - Computer Science and Informatics): 2015, 2017, and 2019.

Program chair for TCC 2014.

Program committee member for the following conferences:

• EUROCRYPT 2018
• EUROCRYPT 2015
• CRYPTO 2013
• EUROCRYPT 2012
• PKC 2011
• CRYPTO 2010
• CRYPTO 2008
• ACNS 2008
• TCC 2008
• CRYPTO 2006
• TCC 2006
• CRYPTO 2005
• EUROCRYPT 2004

Co-organizer of the following workshops:

• Theory and Practice of Multiparty Computation TPMPC 2019.
• 9th Bar-Ilan Winter School on Cryptography: Zero Knowledge, 2019.
• 8th Bar-Ilan Winter School on Cryptography: Secure Key Exchange, 2018.
• 7th Bar-Ilan Winter School on Cryptography: Differential Privacy: From Theory to Practice, 2017.
• 6th Bar-Ilan Winter School on Cryptography: Cryptography in the Cloud - Verifiable Computation and Special Encryption, 2016.
• 5th Bar-Ilan Winter School on Cryptography: Advances in Practical Multiparty Computation, 2015.
• 4th Bar-Ilan Winter School on Cryptography: Symmetric Encryption in Theory and in Practice, 2014.
• 3rd Bar-Ilan Winter School on Cryptography: Bilinear Pairings in Cryptography, 2013.
• 2nd Bar-Ilan Winter School on Cryptography: Lattice-Based Cryptography and Applications, 2012.
• 1st Bar-Ilan Winter School on Cryptography: Secure Computation and Efficiency, 2011.
• Interdisciplinary workshop on Privacy - Cryptographic and Public Administration Perspectives, 2007

Teaching

Webpages for courses:

• Introduction to Cryptography (89-656)
• Foundations of Cryptography (89-856)
• Topics in Applied Cryptography (89-658)
• Introduction to Coding Theory (89-662)

Students, Postdocs and Visitors

• Ph.D:
  • Ariel Nof (Graduated 2019, now a PostDoc at the Technion)
  • Avishai Yanai (Graduated 2019, now at VMware)
  • Ran Cohen (Graduated 2016, now a principal research scientist at NorthEastern University)
  • Hila Zarosim (Graduated 2014)
  • Gilad Asharov (Graduated 2014, now a member of the Computer Science Department at Bar-Ilan University)
  • Carmit Hazay (Graduated 2009; now a member of the Engineering Faculty at Bar-Ilan University)


• M.Sc:
  • Hila Dahari (Graduated 2019)
  • Or Weinstein (Graduated 2018)
  • Ariel Nof (Graduated 2015)
  • Avishai Yanai (Graduated 2015)
  • Asaf Cohen (Graduated 2014)
  • Tali Oberman (Graduated 2013)
  • Eli Oxman (Graduated 2011)
  • Gilad Asharov (Graduated 2009)
  • Hila Zarosim (Graduated 2008)
  • Dafna Kidron (Graduated 2007)
  
  
• Postdocs:
  • Carsten Baum (2016-2017)
  • Ben Riva (2014-2015; joint with Benny Pinkas)
  • Claudio Orlandi (2011-2012; now a faculty member in the Computer Science Department at Aarhus)
  • Eran Omri (2009-2012; now a faculty member in the Computer Science Department at Ariel)


• Visitors:
  • Tal Malkin (September 2013-August 2014)
  • Arpita Patra (January-March 2013)
  • Kobbi Nissim (2012)

My Books

Introduction to Modern Cryptography, 3rd Edition, by Jonathan Katz and Yehuda Lindell. Chapman and Hall/CRC Press, December 2020. The preface and table of contents is available for perusal. More details on the book, including errata and book reviews, can be found here. See CRC and Amazon for purchase information.

Tutorials on the Foundations of Cryptography (Dedicated to Oded Goldreich), Yehuda Lindell Ed. Series on Information Security and Cryptography, Springer, 2017. See Amazon for purchase information. Go here for online access.

Introduction to Modern Cryptography, 2nd Edition, by Jonathan Katz and Yehuda Lindell. Chapman and Hall/CRC Press, November 2014. The preface and table of contents is available for perusal. More details on the book, including errata and book reviews, can be found here. See CRC and Amazon for purchase information.

11th International Conference on the Theory of Cryptography (TCC 2014), Yehuda Lindell Ed. Lecture Notes in Computer Science, Volume 8349, Springer, 2014. Go here for online access.

Efficient Secure Two-Party Protocols: Techniques and Constructions, by Carmit Hazay and Yehuda Lindell Information Security and Cryptography Series, Springer-Verlag, 2010. The preface, table of contents and introduction are available for perusal. More details on the book (including errata) can be found here, and a review of the book that appeared in SIGACT NEWS can be found here. See the Springer website or Amazon for purchase information, and go here for online access. Although this book is intended for those with background in cryptography, we were pleasantly surprised to see that it is being used by a more general audience, and even quite young readers seem to have enjoyed it. See examples here, here, and here.

Introduction to Modern Cryptography, by Jonathan Katz and Yehuda Lindell. Chapman and Hall/CRC Press, August 2007. The preface, table of contents and index and introduction are available for perusal. More details on the book, including errata and book reviews, can be found here. A solutions manual, containing solutions to all of the exercises in the book, can be obtained directly from the publisher by any instructor who adopts the book. See CRC and Amazon for purchase information, and download the promotional flyer.

Composition of Secure Multi-Party Protocols - A Comprehensive Study, by Yehuda Lindell Lecture Notes in Computer Science, Volume 2815, Springer-Verlag, 2003. More details can be found here. See purchase information and online access.