Achieving full security for lattice-based group signatures with verifier-local revocation

Maharage Nisansala Sevwandi Perera, Takeshi Koshiba

研究成果: Conference contribution

抄録

Even though Verifier-local revocation mechanism seems to be the most flexible revocation method that suits for any size of groups it could not reach strong security yet. Verifier-local revocation technique needs to update only the verifiers with revocation messages when a member is revoked while most of the revocation mechanisms require to re-initialize the group or track changes of the group. The first lattice-based group signature scheme with verifier-local revocability was suggested by Langlois, Ling, Nguyen, and Wang (PKC 2014). However, their scheme relies on a weaker security notion. On the other hand, Bellare, Micciancio, and Warinschi (EUROCRYPT 2003) proposed formal security definitions called full-anonymity and full-traceability for static groups. Achieving full-anonymity for schemes with verifier-local revocation is technically challenging because those schemes use a token system. This paper provides a scheme with verifier-local revocation that achieves the full-anonymity and full-traceability.

本文言語English
ホスト出版物のタイトルInformation and Communications Security - 20th International Conference, ICICS 2018, Proceedings
編集者Gregory Blanc, Sihan Qing, Rongxing Lu, Zonghua Zhang, Ahmed Meddahi, David Naccache, Shouhuai Xu, Pierangela Samarati
出版社Springer Verlag
ページ287-302
ページ数16
ISBN(印刷版)9783030019495
DOI
出版ステータスPublished - 2018
イベント20th International Conference on Information and Communications Security, ICICS 2018 - Lille, France
継続期間: 2018 10 292018 10 31

出版物シリーズ

名前Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
11149 LNCS
ISSN(印刷版)0302-9743
ISSN(電子版)1611-3349

Other

Other20th International Conference on Information and Communications Security, ICICS 2018
国/地域France
CityLille
Period18/10/2918/10/31

ASJC Scopus subject areas

  • 理論的コンピュータサイエンス
  • コンピュータ サイエンス(全般)

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