A Multiparty Commutative Hashing Protocol based on the Discrete Logarithm Problem

ePrint Report: A Multiparty Commutative Hashing Protocol based on the Discrete Logarithm Problem

Daniel Zentai, Mihail Plesa, Robin Frot

Let $\mathcal{X}$ and $\mathcal{Y}$ be two sets and suppose that a set of participants $P=\{P_1,P_2,\dots,P_n\}$ would like to calculate the keyed hash value of some message $m\in\mathcal{X}$ known to a single participant in $P$ called the data owner. Also, suppose that each participant $P_i$ knows a secret value $x_i\in\mathcal{X}$. In this paper, we will propose a protocol that enables the participants …

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