Paper 2014/511
Constructing CCA-secure predicate encapsulation schemes from CPA-secure schemes and universal one-way hash functions
Johannes Blömer and Gennadij Liske
Abstract
We present a new transformation of chosen-plaintext secure predicate encryption schemes with public index into chosen-ciphertext secure schemes. Our construction requires only a universal one-way hash function and is selectively secure in the standard model. The transformation is not generic but can be applied to various existing schemes constructed from bilinear groups. Using common structural properties of these schemes we provide an efficient and simple transformation without overhead in form of one-time signatures or message authentication codes as required in the known generic transformations.
Metadata
- Available format(s)
-
PDF
- Category
- Public-key cryptography
- Publication info
- Preprint. MINOR revision.
- Keywords
- predicate key encapsulation mechanismchosen-ciphertext securitypredicate encryption with public indexbilinear groupsuniversal one-way hash function
- Contact author(s)
- gennadij liske @ upb de
- History
- 2014-06-30: received
- Short URL
- https://ia.cr/2014/511
- License
-
CC BY
BibTeX
@misc{cryptoeprint:2014/511,
author = {Johannes Blömer and Gennadij Liske},
title = {Constructing {CCA}-secure predicate encapsulation schemes from {CPA}-secure schemes and universal one-way hash functions},
howpublished = {Cryptology {ePrint} Archive, Paper 2014/511},
year = {2014},
url = {https://eprint.iacr.org/2014/511}
}