Remarks on a Tropical Key Exchange System

May 09, 2020 ยท Declared Dead ยท ๐Ÿ› Journal of Mathematical Cryptology

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Authors Dylan Rudy, Chris Monico arXiv ID 2005.04363 Category cs.CR: Cryptography & Security Citations 36 Venue Journal of Mathematical Cryptology Last Checked 3 months ago
Abstract
We consider a key-exchange protocol based on matrices over a tropical semiring which was recently proposed in \cite{grig19}. We show that a particular private parameter of that protocol can be recovered with a simple binary search, rendering it insecure.
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