Key-policy Attribute-based Encryption for  Boolean Circuits from Bilinear Maps

Ferucio Laurentiu Tiplea; Constantin Catalin Dragan

Paper 2014/608

Key-policy Attribute-based Encryption for Boolean Circuits from Bilinear Maps

Ferucio Laurentiu Tiplea and Constantin Catalin Dragan

Abstract

We propose the first Key-policy Attribute-based Encryption (KP-ABE) scheme for (monotone) Boolean circuits based on bilinear maps. The construction is based on secret sharing and just one bilinear map, and can be viewed as an extension of the KP-ABE scheme in [7]. Selective security of the proposed scheme in the standard model is proved, and comparisons with the scheme in [5] based on leveled multilinear maps, are provided. Thus, for Boolean circuits representing multilevel access structures, our KP-ABE scheme is more efficient than the one in [5].

Metadata

Available format(s): PDF
Category: Public-key cryptography
Publication info: Preprint. MINOR revision.
Contact author(s): fltiplea @ info uaic ro
History: 2014-08-13: received
Short URL: https://ia.cr/2014/608
License: CC BY

BibTeX

@misc{cryptoeprint:2014/608,
      author = {Ferucio Laurentiu Tiplea and Constantin Catalin Dragan},
      title = {Key-policy Attribute-based Encryption for  Boolean Circuits from Bilinear Maps},
      howpublished = {Cryptology {ePrint} Archive, Paper 2014/608},
      year = {2014},
      url = {https://eprint.iacr.org/2014/608}
}