A Practical and Provably Secure Coalition-Resistant Group Signature Scheme

  title={A Practical and Provably Secure Coalition-Resistant Group Signature Scheme},
  author={Giuseppe Ateniese and Jan Camenisch and Marc Joye and Gene Tsudik},
A group signature scheme allows a group member to sign messages anonymously on behalf of the group. However, in the case of a dispute, the identity of a signature’s originator can be revealed (only) by a designated entity. The interactive counterparts of group signatures are identity escrow schemes or group identification scheme with revocable anonymity. This work introduces a new provably secure group signature and a companion identity escrow scheme that are significantly more efficient than… CONTINUE READING
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