Nonlinear Phenomena in Complex Systems, 2014, Vol.17, No.2, pp.194-202

NONLINEAR PHENOMENA IN COMPLEX SYSTEMS
An Interdisciplinary Journal

2014, Vol.17, No.2, pp.194-202

Extended Dynamic Revocable BBS Group Signature Scheme
E. B. Aleksandrova, P. N.Vasilev, E. U. Rezedinova

Dynamic fully anonymous EDBBS-based group signature is proposed. The environment is defined for the group signature, allowing signature revocation from a certain timepoint. The trusted timing manager is added to the group, who fixes and certifies the timepoint of the group setup, the timepoint and the fact of joining the new group member, certifies revocation records and guarantees atomicity of the revoke procedure. The suggested scheme is anonymous, traceable and coalition-resistant.

Key words: cryptography, encryption scheme, digital signature, group signature, dynamic scheme, signature revocation, timing manager

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