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
Creative Commons Attribution
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},
      note = {\url{https://eprint.iacr.org/2014/511}},
      url = {https://eprint.iacr.org/2014/511}
}
Note: In order to protect the privacy of readers, eprint.iacr.org does not use cookies or embedded third party content.