Attacking M&M Collective Signature Scheme

Issue title: Cryptology in Progress: 10th Central European Conference on Cryptology, Będlewo Poland, 2010

Article type: Research Article

Authors: Rjaško, Michal | Stanek, Martin

Affiliations: Department of Computer Science, Comenius University, Mlynská Dolina, SK-842 15 Bratislava, Slovak Republic. {rjasko,stanek}@dcs.fmph.uniba.sk

Note: [] Address for correspondence: Department of Computer Science, Comenius University, Slovak Republic

Note: [] Research supported by VEGA grant No. 1/0266/09.

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

DOI: 10.3233/FI-2012-632

Journal: Fundamenta Informaticae, vol. 114, no. 3-4, pp. 319-323, 2012