A Secure and Efficient Group Blind Signature Scheme

Constantin Popescu

Abstract

A group blind signature require that a group member signs on group's behalf a document without knowing its content. Jn this paper we propose an efficient and secure group blind signature scheme. Our scheme is an extension of the group signature scheme proposed by Ateniese, Camenisch, Joye and Tsudik that adds the blindness property. We prove that our group blind signature scheme has the properties of correctness and blindness.

Keywords

Cryptography, group blind signatures, anonymity, coalition-resistance.

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