Paper 2019/846 Original: eprint.iacr.org/2019/846 ↗
Practical Attribute Based Inner Product Functional Encryption from Simple Assumptions
Abstract
Functional encryption (FE) that bases on user attributes has many useful practical applications. For example, a company may only authorize department heads of other sections to query the average sale figures of the sales department from the encrypted sales amounts of all sales. However, FE schemes that can solve this problem are based on new, but not well-studied assumptions (such as indistinguishable obfuscation or multilinear maps). It is not clear if these FE schemes are secure. In this paper, we develop the first functional encryption scheme (ABFE) from simple and well-studied assumptions that can authorize a user base on the user's attributes to obtain a functional value of the encrypted data.
Metadata
- Available format(s)
PDF- Category
- Public-key cryptography
- Publication info
- Preprint.
- History
- 2019-07-22: last updated
- 2019-07-22: published
- Short URL
- https://ia.cr/2019/846
- License
- https://creativecommons.org/licenses/by/4.0/
BibTeX
@misc{cryptoeprint:2019/846,
author = {Yuechen Chen and Linru Zhang and Siu-Ming Yiu},
title = {Practical Attribute Based Inner Product Functional Encryption from Simple Assumptions},
howpublished = {Cryptology {ePrint} Archive, Paper 2019/846},
year = {2019},
url = {https://eprint.iacr.org/2019/846}
}