TY - CHAP
T1 - Fully dynamic group signature scheme with member registration and verifier-local revocation
AU - Perera, Maharage Nisansala Sevwandi
AU - Koshiba, Takeshi
N1 - Funding Information:
Acknowledgements This work is supported in part by JSPS Grant-in-Aids for Scientic Research (A) JP16H01705 and for Scientic Research (B) JP17H01695.
PY - 2018
Y1 - 2018
N2 - Since Bellare et al. (EUROCRYPT 2003) proposed a security model for group signature schemes, almost all the securities of group signature schemes have been discussed in their model (the BMW03 model). While the BMW03 model is for static groups, Bellare et al. in 2005 considered the case of dynamic group signature schemes and provided a solution to cope with dynamic groups. However, their scheme does not serve member revocation, serves only member registration. In this paper, we incorporate a member revocation mechanism into a group signature scheme with member registration and construct a fully dynamic group signature, which supports verifier-local revocation (VLR) to manipulate member revocation. Moreover, we achieve the security of the proposed scheme with a restricted version of full anonymity to overcome the security complications that may arise due to member revocation.
AB - Since Bellare et al. (EUROCRYPT 2003) proposed a security model for group signature schemes, almost all the securities of group signature schemes have been discussed in their model (the BMW03 model). While the BMW03 model is for static groups, Bellare et al. in 2005 considered the case of dynamic group signature schemes and provided a solution to cope with dynamic groups. However, their scheme does not serve member revocation, serves only member registration. In this paper, we incorporate a member revocation mechanism into a group signature scheme with member registration and construct a fully dynamic group signature, which supports verifier-local revocation (VLR) to manipulate member revocation. Moreover, we achieve the security of the proposed scheme with a restricted version of full anonymity to overcome the security complications that may arise due to member revocation.
KW - Almost-full anonymity
KW - Dynamic group signature
KW - Verifier-local revocation
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U2 - 10.1007/978-981-13-2095-8_31
DO - 10.1007/978-981-13-2095-8_31
M3 - Chapter
AN - SCOPUS:85054417631
T3 - Springer Proceedings in Mathematics and Statistics
SP - 399
EP - 415
BT - Springer Proceedings in Mathematics and Statistics
PB - Springer New York LLC
ER -