Ran Cohen

According to our database, Ran Cohen authored at least 32 papers between 2014 and 2025.

Collaborative distances:

• Dijkstra number of three.
• Erdős number of three.

2025

Is It Even Possible? On the Parallel Composition of Asynchronous MPC Protocols.

Ran Cohen, Pouyan Forghani, Juan Garay, Rutvik Patel, Vassilis Zikas

IACR Cryptol. ePrint Arch., 2025

Peeking Into the Future: MPC Resilient to Super-Rushing Adversaries.

Gilad Asharov, Anirudh Chandramouli, Ran Cohen, Yuval Ishai

Proceedings of the Advances in Cryptology - EUROCRYPT 2025, 2025

2024

Breaking the $O(\sqrt{n})$-Bit Barrier: Byzantine Agreement with Polylog Bits Per Party.

Elette Boyle, Ran Cohen, Aarushi Goel

J. Cryptol., March, 2024

An Unstoppable Ideal Functionality for Signatures and a Modular Analysis of the Dolev-Strong Broadcast.

Ran Cohen, Jack Doerner, Eysa Lee, Anna Lysyanskaya, Lawrence Roy

IACR Cryptol. ePrint Arch., 2024

Efficient Agreement Over Byzantine Gossip.

Ran Cohen, Julian Loss, Tal Moran

Proceedings of the Financial Cryptography and Data Security, 2024

Secure Multiparty Computation with Identifiable Abort via Vindicating Release.

Ran Cohen, Jack Doerner, Yashvanth Kondi, Abhi Shelat

Proceedings of the Advances in Cryptology - CRYPTO 2024, 2024

Information-Theoretic Topology-Hiding Broadcast: Wheels, Stars, Friendship, and Beyond.

D'or Banoun, Elette Boyle, Ran Cohen

Proceedings of the 5th Conference on Information-Theoretic Cryptography, 2024

2023

Secure Multiparty Computation with Identifiable Abort from Vindicating Release.

Ran Cohen, Jack Doerner, Yashvanth Kondi, Abhi Shelat

IACR Cryptol. ePrint Arch., 2023

Communication Lower Bounds for Cryptographic Broadcast Protocols.

Erica Blum, Elette Boyle, Ran Cohen, Chen-Da Liu-Zhang

Proceedings of the 37th International Symposium on Distributed Computing, 2023

Locally Verifiable Distributed SNARGs.

Eden Aldema Tshuva, Elette Boyle, Ran Cohen, Tal Moran, Rotem Oshman

Proceedings of the Theory of Cryptography - 21st International Conference, 2023

Concurrent Asynchronous Byzantine Agreement in Expected-Constant Rounds, Revisited.

Ran Cohen, Pouyan Forghani, Juan A. Garay, Rutvik Patel, Vassilis Zikas

Proceedings of the Theory of Cryptography - 21st International Conference, 2023

Completeness Theorems for Adaptively Secure Broadcast.

Ran Cohen, Juan A. Garay, Vassilis Zikas

Proceedings of the Advances in Cryptology - CRYPTO 2023, 2023

2022

Guaranteed Output in $O(\sqrt{n})$ Rounds for Round-Robin Sampling Protocols.

Ran Cohen, Jack Doerner, Yashvanth Kondi, Abhi Shelat

Proceedings of the Advances in Cryptology - EUROCRYPT 2022 - 41st Annual International Conference on the Theory and Applications of Cryptographic Techniques, Trondheim, Norway, May 30, 2022

Static vs. Adaptive Security in Perfect MPC: A Separation and the Adaptive Security of BGW.

Gilad Asharov, Ran Cohen, Oren Shochat

Proceedings of the 3rd Conference on Information-Theoretic Cryptography, 2022

2021

Adaptively Secure Broadcast in Resource-Restricted Cryptography.

Ran Cohen, Juan A. Garay, Vassilis Zikas

IACR Cryptol. ePrint Arch., 2021

Breaking the O(√ n)-Bit Barrier: Byzantine Agreement with Polylog Bits Per Party.

Elette Boyle, Ran Cohen, Aarushi Goel

Proceedings of the PODC '21: ACM Symposium on Principles of Distributed Computing, 2021

2020

Succinctly Reconstructed Distributed Signatures and Balanced Byzantine Agreement.

Elette Boyle, Ran Cohen, Aarushi Goel

IACR Cryptol. ePrint Arch., 2020

Topology-Hiding Communication from Minimal Assumptions.

Marshall Ball, Elette Boyle, Ran Cohen, Lisa Kohl, Tal Malkin, Pierre Meyer, Tal Moran

Proceedings of the Theory of Cryptography - 18th International Conference, 2020

On the Power of an Honest Majority in Three-Party Computation Without Broadcast.

Bar Alon, Ran Cohen, Eran Omri, Tom Suad

Proceedings of the Theory of Cryptography - 18th International Conference, 2020

Broadcast-Optimal Two-Round MPC.

Ran Cohen, Juan A. Garay, Vassilis Zikas

Proceedings of the Advances in Cryptology - EUROCRYPT 2020, 2020

Multiparty Generation of an RSA Modulus.

Megan Chen, Ran Cohen, Jack Doerner, Yashvanth Kondi, Eysa Lee, Schuyler Rosefield, Abhi Shelat

Proceedings of the Advances in Cryptology - CRYPTO 2020, 2020

2019

On the Round Complexity of Randomized Byzantine Agreement.

Ran Cohen, Iftach Haitner, Nikolaos Makriyannis, Matan Orland, Alex Samorodnitsky

Proceedings of the 33rd International Symposium on Distributed Computing, 2019

Is Information-Theoretic Topology-Hiding Computation Possible?

Marshall Ball, Elette Boyle, Ran Cohen, Tal Malkin, Tal Moran

Proceedings of the Theory of Cryptography - 17th International Conference, 2019

Adaptively Secure MPC with Sublinear Communication Complexity.

Ran Cohen, Abhi Shelat, Daniel Wichs

Proceedings of the Advances in Cryptology - CRYPTO 2019, 2019

2018

From Fairness to Full Security in Multiparty Computation.

Ran Cohen, Iftach Haitner, Eran Omri, Lior Rotem

Proceedings of the Security and Cryptography for Networks - 11th International Conference, 2018

Must the Communication Graph of MPC Protocols be an Expander?

Elette Boyle, Ran Cohen, Deepesh Data, Pavel Hubácek

Proceedings of the Advances in Cryptology - CRYPTO 2018, 2018

2017

Round-Preserving Parallel Composition of Probabilistic-Termination Cryptographic Protocols.

Ran Cohen, Sandro Coretti, Juan A. Garay, Vassilis Zikas

Proceedings of the 44th International Colloquium on Automata, Languages, and Programming, 2017

2016

Characterization of Secure Multiparty Computation Without Broadcast.

Ran Cohen, Iftach Haitner, Eran Omri, Lior Rotem

Proceedings of the Theory of Cryptography - 13th International Conference, 2016

On Adaptively Secure Multiparty Computation with a Short CRS.

Ran Cohen, Chris Peikert

Proceedings of the Security and Cryptography for Networks - 10th International Conference, 2016

Asynchronous Secure Multiparty Computation in Constant Time.

Ran Cohen

Proceedings of the Public-Key Cryptography - PKC 2016, 2016

Probabilistic Termination and Composability of Cryptographic Protocols.

Ran Cohen, Sandro Coretti, Juan A. Garay, Vassilis Zikas

Proceedings of the Advances in Cryptology - CRYPTO 2016, 2016

2014

Fairness versus Guaranteed Output Delivery in Secure Multiparty Computation.

Ran Cohen, Yehuda Lindell

Proceedings of the Advances in Cryptology - ASIACRYPT 2014, 2014