Attribute-Based Functional Encryption on Lattices

Xavier Boyen

Paper 2012/716

Attribute-Based Functional Encryption on Lattices

Xavier Boyen

Abstract

We introduce a broad lattice manipulation technique for expressive cryptography, and use it to realize functional encryption for access structures from post-quantum hardness assumptions. Specifically, we build an efficient key-policy attribute-based encryption scheme, and prove its security in the selective sense from learning-with-errors intractability in the standard model.

Metadata

Available format(s): PDF
Category: Public-key cryptography
Publication info: Published elsewhere. TCC 2013 (to appear)
Keywords: Expressive cryptography functional encryption ABE LWE lattices.
Contact author(s): xb @ boyen org
History: 2012-12-31: revised; 2012-12-27: received; See all versions
Short URL: https://ia.cr/2012/716
License: CC BY

BibTeX

@misc{cryptoeprint:2012/716,
      author = {Xavier Boyen},
      title = {Attribute-Based Functional Encryption on Lattices},
      howpublished = {Cryptology ePrint Archive, Paper 2012/716},
      year = {2012},
      note = {\url{https://eprint.iacr.org/2012/716}},
      url = {https://eprint.iacr.org/2012/716}
}