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Latinoamericanistas—those of us who follow, love, and have dedicated much professional and personal attention to Latin America—are often quick to complain about the historical U.S. neglect of “our” re...
On the Price of Proactivizing Round-Optimal Perfectly Secret Message Transmission
mobile tt-adversary PSMT
2018/12/3
In a network of nn nodes (modelled as a digraph), the goal of a perfectly secret message transmission (PSMT) protocol is to replicate sender's message mm at the receiver's end without revealing any in...
The Price of Low Communication in Secure Multi-Party Computation
Secure multi-party computation Oblivious Transfer adversary structures
2017/6/6
Traditional protocols for secure multi-party computation (MPC) among nn parties that achieve optimal resiliency communicate at least a linear (in nn) number of bits. In this work we investigate the fe...
Secure Second Price Auctions with a Rational Auctioneer
Auctions Cryptographic Auction Schemes
2014/3/13
We present novel security requirements for second price auctions and a simple, efficient and practical protocol that provably maintains these requirements. Novel requirements are needed because common...
Privacy-Enhancing First-Price Auctions Using Rational Cryptography
Privacy-Enhancing First-Price Auctions Rational Cryptography
2009/6/9
We consider enhancing a sealed-bid single-item auction with privacy concerns, our assumption
being that bidders primarily care about monetary payoff and secondarily worry about exposing
information ...