Achieving Strong Security and Verifier-Local Revocation for Dynamic Group Signatures from Lattice Assumptions

Maharage Nisansala Sevwandi Perera*, Takeshi Koshiba

*この研究の対応する著者

研究成果: Conference contribution

6 被引用数 (Scopus)

抄録

Both member registration and member revocation are essential features in group signature schemes. In ASIACRYPT 2016 Libert, Ling, Mouhartem, Nguyen, and Wang suggested a simple joining mechanism with their lattice-based group signature scheme with member registration. However, their scheme does not support member revocation. Verifier-local revocation is a member revocation approach in group signature schemes, which only requires the verifiers to keep the revocation messages while existing members have no burden. Since there is no workload for existing members related to revocation messages, verifier-local revocation method became the most suitable revocation approach for any environment. However, original group signature schemes with verifier-local revocability satisfy weaker security. This paper adds verifier-local revocation mechanism to the Libert’s (ASIACRYPT 2016) scheme to produce a fully dynamic lattice-based group signature scheme with member registration and member revocation using verifier-local revocation mechanism. Moreover, the resulted scheme achieves stronger security than the security in the original group signature schemes with verifier-local revocation.

本文言語English
ホスト出版物のタイトルSecurity and Trust Management - 14th International Workshop, STM 2018, Proceedings
編集者Cristina Alcaraz, Sokratis K. Katsikas, Sokratis K. Katsikas
出版社Springer Verlag
ページ3-19
ページ数17
ISBN(印刷版)9783030011406
DOI
出版ステータスPublished - 2018
イベント14th International Workshop on Security and Trust Management, STM 2018 - Barcelona, Spain
継続期間: 2018 9 62018 9 7

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)
11091 LNCS
ISSN(印刷版)0302-9743
ISSN(電子版)1611-3349

Other

Other14th International Workshop on Security and Trust Management, STM 2018
国/地域Spain
CityBarcelona
Period18/9/618/9/7

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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