A group signature scheme based on the integer factorization and the subgroup discrete logarithm problems

Authors:
R. Durán Díaz;L. Hernández Encinas;J. Muñoz Masqué
Affiliations:
Universidad de Alcalá, Spain;Instituto de Física Aplicada, CSIC, Madrid, Spain;Instituto de Física Aplicada, CSIC, Madrid, Spain
Venue:
CISIS'11 Proceedings of the 4th international conference on Computational intelligence in security for information systems
Year:
2011

Citing 11
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Abstract

Group signature schemes allow a user, belonging to a specific group of users, to sign a message in an anonymous way on behalf of the group. In general, these schemes need the collaboration of a Trusted Third Party which, in case of a dispute, can reveal the identity of the real signer. A new group signature scheme is presented whose security is based on the Integer Factorization Problem (IFP) and on the Subgroup Discrete Logarithm Problem (SDLP).