Paper Info
Title
Adaptive-ID Secure Revocable Hierarchical Identity-Based Encryption
Abstract
Revocable Hierarchical Identity-Based Encryption RHIBE is a variant of Identity-Based Encryption IBE, which enables the dynamic user management; a Key Generation Center KGC of a usual IBE has a key issuing ability. In contrast, in a RHIBE, a KGC can revoke compromised secret keys and even delegate both key issuing ability and revocation ability. Recently, Seo and Emura proposed the first construction for RHIBE CT-RSA 2013 and then refined the security model and the construction for RHIBE CT-RSA 2015. Nevertheless, their constructions achieve only a slightly weaker security notion, called selective-ID security, in the sense that the adversary has to choose and declare the target identity before she receives the system parameter of target RHIBE scheme. In this paper, we propose the first RHIBE construction that achieves a right security notion, called adaptive-ID security. In particular, our construction still has the advantages of the Seo-Emura RHIBE schemes; that is, it is scalable and achieves history-free update, security against insiders, and short ciphertexts. We employ the dual system encryption methodology.
Year
DOI
Venue
2015
10.1007/978-3-319-22425-1_2
International Workshop on Security
Field
DocType
Volume
Multiple encryption,Delegate,Computer security,Computer science,Encryption,User management,Revocation,Probabilistic encryption,Key generation center
Conference
9241
ISSN
Citations 
PageRank 
0302-9743
3
0.37
References 
Authors
11
2
Name
Order
Citations
PageRank
Jae Hong Seo123218.59
Keita Emura231636.97