Open AccessThreshold attribute‐based encryption with attribute hierarchy for lattices in the standard model
Author(s) -
Liu Ximeng,
Ma Jianfeng,
Xiong Jinbo,
Li Qi,
Zhang Tao,
Zhu Hui
Publication year - 2014
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.2013.0111
Subject(s) - hierarchy , encryption , computer science , theoretical computer science , mathematics , data mining , computer security , market economy , economics
Attribute‐based encryption (ABE) has been considered as a promising cryptographic primitive for realising information security and flexible access control. However, the characteristic of attributes is treated as the identical level in most proposed schemes. Lattice‐based cryptography has been attracted much attention because of that it can resist to quantum cryptanalysis. In this study, lattice‐based threshold hierarchical ABE (lattice‐based t ‐HABE) scheme without random oracles is constructed and proved to be secure against selective attribute set and chosen plaintext attacks under the standard hardness assumption of the learning with errors problem. The notion of the HABE scheme can be considered as the generalisation of traditional ABE scheme where all attributes have the same level.