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Electronic Colloquium on Computational Complexity

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REPORTS > KEYWORD > ADAPTIVE ADVERSARIES:
Reports tagged with adaptive adversaries:
TR00-039 | 25th April 2000
Yevgeniy Dodis

Impossibility of Black-Box Reduction from Non-Adaptively to Adaptively Secure Coin-Flipping

Collective Coin-Flipping is a classical problem where n
computationally unbounded processors are trying to generate a random
bit in a setting where only a single broadcast channel is available
for communication. The protocol is said to be b(n)-resilient if any
adversary that can corrupt up to b(n) players, still cannot ... more >>>


TR18-140 | 11th August 2018
Ilan Komargodski, Ran Raz, Yael Tauman Kalai

A Lower Bound for Adaptively-Secure Collective Coin-Flipping Protocols

Revisions: 1

In 1985, Ben-Or and Linial (Advances in Computing Research '89) introduced the collective coin-flipping problem, where $n$ parties communicate via a single broadcast channel and wish to generate a common random bit in the presence of adaptive Byzantine corruptions. In this model, the adversary can decide to corrupt a party ... more >>>




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