Paper Info
Title
Generic constructions for chosen-ciphertext secure attribute based encryption
Abstract
In this paper we propose generic conversions for transforming a chosen-plaintext (CPA) secure attribute-based encryption (ABE) to a chosen-ciphertext (CCA) secure ABE. The only known generic conversion, to the best of our knowledge, was presented by Goyal et al. in ACM-CCS 2006, which itself subsumes the well-known IBE-to-PKE conversion by Canetti, Halevi, and Katz proposed in Eurocrypt 2004. The method by Goyal et al. has some restrictions that it assumes the delegatability of the original ABE and can deal only with the key-policy type of ABE with large attribute universe. In contrast, our methodology is applicable also to those ABE schemes without known delegatability. Furthermore, it works for both key-policy or ciphertext-policy flavors of ABE and can deal with both small and large universe scheme. More precisely, our method assumes only either delegatability or a newly introduced property called verifiability of ABE. We then exhaustively check the verifiability of existing ABE schemes and found that most of them satisfy such a property, hence CCA-secure versions of these schemes can be obtained automatically.
Year
DOI
Venue
2011
10.1007/978-3-642-19379-8_5
Public Key Cryptography
Keywords
Field
DocType
generic construction,secure abe,chosen-ciphertext secure attribute,abe scheme,key-policy type,large attribute universe,original abe,secure attribute-based encryption,well-known ibe-to-pke conversion,large universe scheme,generic conversion,known delegatability,satisfiability,attribute based encryption
Computer science,Attribute-based encryption,Functional encryption,Encryption,Theoretical computer science,Ciphertext,Access structure
Conference
Volume
ISSN
Citations 
6571
0302-9743
36
PageRank 
References 
Authors
1.04
33
4
Name
Order
Citations
PageRank
Shota Yamada19418.10
Nuttapong Attrapadung281139.85
Goichiro Hanaoka3910101.53
Noboru Kunihiro442545.72