Title: Generic construction of role-based encryption in the standard model

Authors: BaoHong Li; BaoJun Li; YinLiang Zhao

Addresses: School of Electronics and Information Engineering, Xi'an Jiaotong University, Xi'an, 710049, China ' Department of Radiology, Boston University Medical Center, Boston, MA 02118, USA ' School of Electronics and Information Engineering, Xi'an Jiaotong University, Xi'an, 710049, China

Abstract: Role-based encryption is a new cryptographic primitive that enables the role-based access control (RBAC) model for encrypted data in cloud storage environments. Compared with some other cryptographic access control technologies, such as attribute-based encryption (ABE), it can greatly relieve data owners from the heavy burden to define and manage access control policies. In this paper, we present a new generic construction of role-based encryption from inner-product encryption (IPE) and revocation encryption, with following two significant features: 1) it is the first adaptively secure role-based encryption scheme in the standard model; 2) it is more efficient than all of the previous role-based encryption constructions.

Keywords: cloud storage; role-based encryption; inner-product encryption; revocation encryption; role-based access control; partial order relation; role hierarchy; access control policies; constant-size ciphertexts; adaptive security; user revocation.

DOI: 10.1504/IJSN.2017.084400

International Journal of Security and Networks, 2017 Vol.12 No.3, pp.198 - 205

Available online: 21 May 2017 *

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