Coin Flipping of Any Constant Bias Implies One-Way Functions

Itay Berman; Iftach Haitner; Aris Tentes

doi:10.1145/2979676

Coin Flipping of Any Constant Bias Implies One-Way Functions

Itay Berman, Iftach Haitner, Aris Tentes

School of Computer Science

Tel Aviv University

Research output: Contribution to journal › Article › peer-review

Abstract

We show that the existence of a coin-flipping protocol safe against any nontrivial constant bias (e.g.,.499) implies the existence of one-way functions. This improves upon a result of Haitner and Omri (FOCS'11), who proved this implication for protocols with bias 2-1/2-o(1) ≈.207. Unlike the result of Haitner and Omri, our result also holds for weak coin-flipping protocols.

Original language	English
Article number	14
Journal	Journal of the ACM
Volume	65
Issue number	3
DOIs	https://doi.org/10.1145/2979676
State	Published - 13 Mar 2018

Keywords

Coin-flipping protocols
minimal hardness assumptions
one-way functions

All Science Journal Classification (ASJC) codes

Software
Control and Systems Engineering
Information Systems
Hardware and Architecture
Artificial Intelligence

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10.1145/2979676

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abstract = "We show that the existence of a coin-flipping protocol safe against any nontrivial constant bias (e.g.,.499) implies the existence of one-way functions. This improves upon a result of Haitner and Omri (FOCS'11), who proved this implication for protocols with bias 2-1/2-o(1) ≈.207. Unlike the result of Haitner and Omri, our result also holds for weak coin-flipping protocols.",

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Coin Flipping of Any Constant Bias Implies One-Way Functions

Abstract

Keywords

All Science Journal Classification (ASJC) codes

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