Unbounded hierarchical identity-based encryption with efficient revocation

Geumsook Ryu; Kwangsu Lee; Seunghwan Park; Dong Hoon Lee

doi:10.1007/978-3-319-31875-2_11

Unbounded hierarchical identity-based encryption with efficient revocation

Geumsook Ryu, Kwangsu Lee, Seunghwan Park, Dong Hoon Lee

Graduate School of Information Security

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

7 Citations (Scopus)

Abstract

Hierarchical identity-based encryption (HIBE) is an extension of identity-based encryption (IBE) where an identity of a user is organized as a hierarchical structure and a user can delegate the private key generation to another user. Providing a revocation mechanism for HIBE is highly necessary to keep a system securely. Revocable HIBE (RHIBE) is an HIBE scheme that can revoke a user’s private key if his credential is expired or revealed. In this paper, we first propose an unbounded HIBE scheme where the maximum hierarchy depth is not limited and prove its selective security under a q-type assumption. Next, we propose an efficient unbounded RHIBE scheme by combining our unbounded HIBE scheme and a binary tree structure, and then we prove its selective security. By presenting the unbounded RHIBE scheme, we solve the open problem of Seo and Emura in CT-RSA 2015.

Original language	English
Title of host publication	Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Publisher	Springer Verlag
Pages	122-133
Number of pages	12
Volume	9503
ISBN (Print)	9783319318745
DOIs	https://doi.org/10.1007/978-3-319-31875-2_11
Publication status	Published - 2016
Event	16th International Workshop on Information Security Applications, WISA 2015 - Jeju Island, Korea, Republic of Duration: 2015 Aug 20 → 2015 Aug 22

Publication series

Name	Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume	9503
ISSN (Print)	03029743
ISSN (Electronic)	16113349

Other

Other	16th International Workshop on Information Security Applications, WISA 2015
Country	Korea, Republic of
City	Jeju Island
Period	15/8/20 → 15/8/22

Fingerprint

Keywords

Bilinear maps
Hierarchical identity-based encryption
Identity-based encryption
Revocation
Unbounded hierarchy depth

ASJC Scopus subject areas

Computer Science(all)
Theoretical Computer Science

Cite this

Ryu, G., Lee, K., Park, S., & Lee, D. H. (2016). Unbounded hierarchical identity-based encryption with efficient revocation. In Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) (Vol. 9503, pp. 122-133). (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 9503). Springer Verlag. https://doi.org/10.1007/978-3-319-31875-2_11

Unbounded hierarchical identity-based encryption with efficient revocation. / Ryu, Geumsook; Lee, Kwangsu; Park, Seunghwan; Lee, Dong Hoon.

Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). Vol. 9503 Springer Verlag, 2016. p. 122-133 (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 9503).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Ryu, G, Lee, K, Park, S & Lee, DH 2016, Unbounded hierarchical identity-based encryption with efficient revocation. in Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). vol. 9503, Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), vol. 9503, Springer Verlag, pp. 122-133, 16th International Workshop on Information Security Applications, WISA 2015, Jeju Island, Korea, Republic of, 15/8/20. https://doi.org/10.1007/978-3-319-31875-2_11

Ryu G, Lee K, Park S, Lee DH. Unbounded hierarchical identity-based encryption with efficient revocation. In Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). Vol. 9503. Springer Verlag. 2016. p. 122-133. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)). https://doi.org/10.1007/978-3-319-31875-2_11

Ryu, Geumsook ; Lee, Kwangsu ; Park, Seunghwan ; Lee, Dong Hoon. / Unbounded hierarchical identity-based encryption with efficient revocation. Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). Vol. 9503 Springer Verlag, 2016. pp. 122-133 (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)).

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AB - Hierarchical identity-based encryption (HIBE) is an extension of identity-based encryption (IBE) where an identity of a user is organized as a hierarchical structure and a user can delegate the private key generation to another user. Providing a revocation mechanism for HIBE is highly necessary to keep a system securely. Revocable HIBE (RHIBE) is an HIBE scheme that can revoke a user’s private key if his credential is expired or revealed. In this paper, we first propose an unbounded HIBE scheme where the maximum hierarchy depth is not limited and prove its selective security under a q-type assumption. Next, we propose an efficient unbounded RHIBE scheme by combining our unbounded HIBE scheme and a binary tree structure, and then we prove its selective security. By presenting the unbounded RHIBE scheme, we solve the open problem of Seo and Emura in CT-RSA 2015.

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Access to Document

10.1007/978-3-319-31875-2_11