Cryptography and Information Security (CIS) Seminar

Geoffroy Couteau: Title: Correlated Pseudorandom Functions from Variable-Density LPN
Friday, May 28, 2021 - 3:30pm

Abstract: Correlated secret randomness is a useful resource for many cryptographic applications.

Henry Corrigan-Gibbs: Lightweight Techniques for Private Heavy Hitters
Friday, May 14, 2021 - 1:00pm to 2:30pm

ABSTRACT:  This talk will present a new protocol for solving the private heavy-hitters problem. In this problem, there are many clients and a small set of data-collection servers. Each client holds a private bitstring.

Shuichi Hirahara: Average-Case Hardness of NP from Exponential Worst-Case Hardness Assumptions
Friday, April 30, 2021 - 9:30am to 11:30am


Sophia Yakoubov: The Rise of Paillier: Homomorphic Secret Sharing and Public-Key Silent OT
Friday, April 23, 2021 - 1:00pm to 2:30pm


Joint work with Claudio Orlandi and Peter Scholl.

Dakshita Khurana: On Removing Interaction in Non-Malleable Commitments
Friday, April 9, 2021 - 1:00pm to 2:30pm
Ron Rothblum: Local Proofs Approaching the Witness Length
Friday, April 2, 2021 - 1:00pm to 2:30pm
Prabhanjan Ananth: Secure Software Leasing
Friday, March 26, 2021 - 1:00pm to 2:30pm
Abstract: Formulating cryptographic definitions to protect against software piracy is an important research direction that has not received much attention.
Zhengzhong Jin: Non-Interactive Zero Knowledge from Sub-exponential DDH
Friday, April 16, 2021 - 1:00pm to 2:30pm

Abstract:  We provide the first constructions of non-interactive zero-knowledge and Zap arguments for NP based on the sub-exponential hardness of Decisional Diffie-Hellman against polynomia

Alex Lombardi: Fiat-Shamir via List-Recoverable Codes
Friday, March 5, 2021 - 1:00pm to 2:30pm
Abstract: We construct hash functions that, assuming the hardness of LWE, securely realize the Fiat-Shamir transform (in the standard model) for the following rich classes of protocols:
Jiayu Zhang: Succinct Blind Quantum Computation Using a Random Oracle
Friday, March 19, 2021 - 1:00pm to 2:30pm


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