two attacks on xia-you Group Signature

Jianhong Zhang; Jilin Wang; Yumin Wang

Paper 2002/177

two attacks on xia-you Group Signature

Jianhong Zhang, Jilin Wang, and Yumin Wang

Abstract

Group signature is very important primitive in cryptography. A group signature scheme allows any group member to sign on behalf of the group in an anonymous and unlinkable fashion .In case of dispute, group manager can reveal the identity of the signer. Recently, S.Xia and J.You proposed a group signature scheme based on identity with strong separability in which the revocation manager can work without the involvement of the membership manger. In this paper, we analyze the security of Xia-You group signature and indicate that two or more group members can collude to construct a valid signature and any group member can forge a valid membership certification.

Metadata

Available format(s): PDF
Publication info: Published elsewhere. Unknown where it was published
Keywords: group signature attack security
Contact author(s): jhzhs @ hotmail com
History: 2002-11-19: received
Short URL: https://ia.cr/2002/177
License: CC BY

BibTeX

@misc{cryptoeprint:2002/177,
      author = {Jianhong Zhang and Jilin Wang and Yumin Wang},
      title = {two attacks on xia-you Group Signature},
      howpublished = {Cryptology {ePrint} Archive, Paper 2002/177},
      year = {2002},
      url = {https://eprint.iacr.org/2002/177}
}