Open AccessPower of public‐key function‐private functional encryption
Author(s) -
Iovino Vincenzo,
Tang Qiang,
Żebrowski Karol
Publication year - 2018
Publication title -
iet information security
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.308
H-Index - 34
eISSN - 1751-8717
pISSN - 1751-8709
DOI - 10.1049/iet-ifs.2016.0459
Subject(s) - functional encryption , key (lock) , encryption , public key cryptography , construct (python library) , function (biology) , computer science , theoretical computer science , computer security , property (philosophy) , computer network , ciphertext , evolutionary biology , biology , philosophy , epistemology
In the public‐key setting, known constructions of function‐private functional encryption (FPFE) were limited to very restricted classes of functionalities like inner‐product. Moreover, its power has not been well investigated. The authors construct FPFE for general functions and explore its powerful applications, both for general and specific functionalities. One key observation entailed by their results is that attribute‐based encryption with function privacy implies FE, a notable fact that sheds light on the importance of the function privacy property for FE.