Cryptography and Information Security (CIS) Seminar

From Algebraic Complexity to Zero Knowledge Protocols
Friday, March 24, 2017 - 10:30am to 12:00pm

We present new techniques for achieving unconditional zero knowledge within models that combine probabilisti

Yilei Chen: Constraint-hiding constrained PRFs for NC1 from LWE
Friday, March 10, 2017 - 10:30am to 12:00pm
Abstract: 
 
Itay Berman: Zero-Knowledge Proofs of Proximity
Friday, March 17, 2017 - 10:30am to 12:00pm
Abstract:
Oxana Poburinnaya: Equivocating Yao: Constant-Round Adaptively Secure Multiparty Computation in the Plain Model
Friday, February 24, 2017 - 10:30am to 12:00pm

Abstract: Yao's garbling scheme is one of the basic building blocks of cryptographic protocol design.

Prashant Nalini Vasudevan: Average-Case Fine-Grained Hardness, and what to do with it
Friday, February 10, 2017 - 10:30am to 12:00pm

Abstract:  We present functions that are hard to compute on average for algorithms running in some fixed polynomial time, assuming widely-conjectured worst-case hardness of certain problems from the study of fine-grained complexity.

Rafael Pass: Rethinking Large-Scale Consensus through Blockchains
Friday, December 2, 2016 - 10:30am to 12:00pm

Abstract: 

Joseph Bonneau: Public Randomness, Blockchains and Proofs-of-delay
Friday, November 18, 2016 - 12:30pm to 2:00pm

A public, unpredictable source of randomness would enable many exciting applications, starting with verifiable public lotteries. It is an essential building block for many types of smart contract requiring random inputs, from online games to random audits.

Vassilis Zikas: Fair and Robust Multi-Party Computation using a Global Transaction Ledger
Friday, November 18, 2016 - 10:30am to 12:00pm
Abstract:
Tancrede Lepoint: Using the Rényi Divergence Rather than the Statistical Distance in Lattice Crypto
Friday, November 4, 2016 - 10:30am to 12:00pm

Abstract: 

Zahra Jafargholi: Adaptive Security of Yao's Garbled Circuits
Friday, August 5, 2016 - 10:30am to 12:00pm
Abstract: 

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