Paper 2010/563 Original: eprint.iacr.org/2010/563 ↗

Fully Secure Functional Encryption with General Relations from the Decisional Linear Assumption

Tatsuaki Okamoto
Katsuyuki Takashima
Abstract

This paper presents a fully secure functional encryption scheme for a wide class of relations, that are specified by non-monotone access structures combined with inner-product relations. The security is proven under a standard assumption, the decisional linear (DLIN) assumption, in the standard model. The proposed functional encryption scheme covers, as special cases, (1) key-policy and ciphertext-policy attribute-based encryption with non-monotone access structures, and (2) (hierarchical) predicate encryption with inner-product relations and functional encryption with non-zero inner-product relations.

Metadata
Available format(s)
PDF
Category
Public-key cryptography
Publication info
Preprint.
History
2011-12-22: last updated
2010-11-05: published
Short URL
https://ia.cr/2010/563
License
https://creativecommons.org/licenses/by/4.0/

BibTeX

@misc{cryptoeprint:2010/563,
      author = {Tatsuaki Okamoto and Katsuyuki Takashima},
      title = {Fully Secure Functional Encryption with General Relations from the Decisional Linear Assumption},
      howpublished = {Cryptology {ePrint} Archive, Paper 2010/563},
      year = {2010},
      url = {https://eprint.iacr.org/2010/563}
}
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