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Electronic Colloquium on Computational Complexity

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REPORTS > AUTHORS > CHETHAN KAMATH:
All reports by Author Chethan Kamath:

TR19-074 | 22nd May 2019
Arka Rai Choudhuri, Pavel Hubacek, Chethan Kamath, Krzysztof Pietrzak, Alon Rosen, Guy Rothblum

Finding a Nash Equilibrium Is No Easier Than Breaking Fiat-Shamir

The Fiat-Shamir heuristic transforms a public-coin interactive proof into a non-interactive argument, by replacing the verifier with a cryptographic hash function that is applied to the protocol’s transcript. Constructing hash functions for which this transformation is sound is a central and long-standing open question in cryptography.

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