Ran Cohen

According to our database, Ran Cohen authored at least 30 papers between 2015 and 2024.

Collaborative distances:

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

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

Locally Verifiable Distributed SNARGs.

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

IACR Cryptol. ePrint Arch., 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

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

D'or Banoun, Elette Boyle, Ran Cohen

IACR Cryptol. ePrint Arch., 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

2023

Topology-Hiding Communication from Minimal Assumptions.

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

J. Cryptol., October, 2023

Must the Communication Graph of MPC Protocols be an Expander?

Elette Boyle, Ran Cohen, Deepesh Data, Pavel Hubácek

J. Cryptol., July, 2023

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

Bar Alon, Ran Cohen, Eran Omri, Tom Suad

J. Cryptol., July, 2023

Adaptively Secure MPC with Sublinear Communication Complexity.

Ran Cohen, Abhi Shelat, Daniel Wichs

J. Cryptol., April, 2023

Efficient Agreement Over Byzantine Gossip.

Ran Cohen, Julian Loss, Tal Moran

IACR Cryptol. ePrint Arch., 2023

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

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

IACR Cryptol. ePrint Arch., 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

IACR Cryptol. ePrint Arch., 2023

Completeness Theorems for Adaptively Secure Broadcast.

Ran Cohen, Juan A. Garay, Vassilis Zikas

Proceedings of the Advances in Cryptology - CRYPTO 2023, 2023

2022

From Fairness to Full Security in Multiparty Computation.

Ran Cohen, Iftach Haitner, Eran Omri, Lior Rotem

J. Cryptol., 2022

On the Round Complexity of Randomized Byzantine Agreement.

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

J. Cryptol., 2022

Multiparty Generation of an RSA Modulus.

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

J. Cryptol., 2022

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

Ran Cohen, Jack Doerner, Yashvanth Kondi, Abhi Shelat

IACR Cryptol. ePrint Arch., 2022

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

Gilad Asharov, Ran Cohen, Oren Shochat

IACR Cryptol. ePrint Arch., 2022

2021

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

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

J. Cryptol., 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

2019

Probabilistic Termination and Composability of Cryptographic Protocols.

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

J. Cryptol., 2019

Broadcast-Optimal Two-Round MPC.

Ran Cohen, Juan A. Garay, Vassilis Zikas

IACR Cryptol. ePrint Arch., 2019

Is Information-Theoretic Topology-Hiding Computation Possible?

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

IACR Cryptol. ePrint Arch., 2019

2018

Characterization of Secure Multiparty Computation Without Broadcast.

Ran Cohen, Iftach Haitner, Eran Omri, Lior Rotem

J. Cryptol., 2018

2017

Fairness Versus Guaranteed Output Delivery in Secure Multiparty Computation.

Ran Cohen, Yehuda Lindell

J. Cryptol., 2017

2016

On Adaptively Secure Multiparty Computation with a Short CRS.

Ran Cohen, Chris Peikert

IACR Cryptol. ePrint Arch., 2016

2015

Asynchronous Secure Multiparty Computation in Constant Time.

Ran Cohen

IACR Cryptol. ePrint Arch., 2015