[Resource Topic] 2010/308: Attacking M&M Collective Signature Scheme

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Title:
Attacking M&M Collective Signature Scheme

Authors: Michal Rjaško, Martin Stanek

Abstract:

A collective signature scheme aims to solve the problem of signing a message by multiple signers. Recently, Moldovyan and Moldovyan [1] proposed a scheme for collective signatures based on Schnorr signatures. We show some security weaknesses of the scheme.

ePrint: https://eprint.iacr.org/2010/308

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