Information Security and Cryptography Research Group

Efficient and Generalized Group Signatures

Jan Camenisch

Advances in Cryptology — EUROCRYPT '97, Lecture Notes in Computer Science, Springer-Verlag, vol. 1233, pp. 465–479, May 1997.

The concept of group signatures was introduced by Chaum et al. at Eurocrypt '91. It allows a member of a group to sign messages anonymously on behalf of the group. In case of a later dispute a designated group manager can revoke the anonymity and identify the originator of a signature. In this paper we propose a new efficient group signature scheme. Furthermore we present a model and the first realization of generalized group signatures. Such a scheme allows to define coalitions of group members that are able to sign on the group's behalf.

BibTeX Citation

    author       = {Jan Camenisch},
    title        = {Efficient and Generalized Group Signatures},
    editor       = {Walter Fumy},
    booktitle    = {Advances in Cryptology --- EUROCRYPT~'97},
    pages        = 465--479,
    series       = {Lecture Notes in Computer Science},
    volume       = 1233,
    year         = 1997,
    month        = 5,
    publisher    = {Springer-Verlag},

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