Improved Construction for Inner Product Functional Encryption
Joint Authors
Liu, Ximeng
Zhao, Qingsong
Zeng, Qingkai
Source
Security and Communication Networks
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-08-13
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Information Technology and Computer Science
Abstract EN
Functional encryption (FE) is a vast new paradigm for encryption scheme which allows tremendous flexibility in accessing encrypted data.
In a FE scheme, a user can learn specific function of encrypted messages by restricted functional key and reveals nothing else about the messages.
Besides the standard notion of data privacy in FE, it should protect the privacy of the function itself which is also crucial for practical applications.
In this paper, we construct a secret key FE scheme for the inner product functionality using asymmetric bilinear pairing groups of prime order.
Compared with the existing similar schemes, our construction reduces both necessary storage and computational complexity by a factor of 2 or more.
It achieves simulation-based security, security strength which is higher than that of indistinguishability-based security, against adversaries who get hold of an unbounded number of ciphertext queries and adaptive secret key queries under the External Decisional Linear (XDLIN) assumption in the standard model.
In addition, we implement the secret key inner product scheme and compare the performance with the similar schemes.
American Psychological Association (APA)
Zhao, Qingsong& Zeng, Qingkai& Liu, Ximeng. 2018. Improved Construction for Inner Product Functional Encryption. Security and Communication Networks،Vol. 2018, no. 2018, pp.1-12.
https://search.emarefa.net/detail/BIM-1214301
Modern Language Association (MLA)
Zhao, Qingsong…[et al.]. Improved Construction for Inner Product Functional Encryption. Security and Communication Networks No. 2018 (2018), pp.1-12.
https://search.emarefa.net/detail/BIM-1214301
American Medical Association (AMA)
Zhao, Qingsong& Zeng, Qingkai& Liu, Ximeng. Improved Construction for Inner Product Functional Encryption. Security and Communication Networks. 2018. Vol. 2018, no. 2018, pp.1-12.
https://search.emarefa.net/detail/BIM-1214301
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1214301