Efficient Group Signatures without Trapdoors (2002)
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BibTeX
@MISC{Ateniese02efficientgroup,
author = {Giuseppe Ateniese and Breno de Medeiros},
title = {Efficient Group Signatures without Trapdoors},
year = {2002}
}
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Abstract
Group signature schemes are fundamental cryptographic tools that enable unlinkably anonymous authentication, in the same fashion that digital signatures provide the basis for strong authentication protocols. In this paper we present the first group signature scheme with constantsize parameters that does not employ any trapdoor function. This novel type of group signature scheme allows public parameters to be shared among organizations. Such sharing represents a highly desirable simpli cation over existing schemes, which require each organization to maintain a separate cryptographic domain.







