Privacy preserving hierarchical content distribution in multiparty multilevel DRM

Author

Mishra, Debahuti ; Mukhopadhyay, Saibal

Author_Institution

Dept. of Math., Indian Inst. of Technol. Kharagpur, Kharagpur, India

fYear

2012

fDate

Oct. 30 2012-Nov. 2 2012

Firstpage

525

Lastpage

530

Abstract

Digital rights management (DRM) system is widely used to restrict the illegal content consumption. However, to achieve security and accountability, the system loses privacy. In addition, multiparty multilevel (MPML) DRM system maintains single private key generator (PKG), which completely eliminates online lookup in a large network. In this paper, we present a hierarchical identity based encryption (HIBE) scheme for MPML DRM. In the proposed scheme, we use 2-level HIBE in which a trusted party act as a root PKG and each domain PKG act as a first level authorities, which are responsible to generate the private keys for the entities of their domains. Further, we address a commutative encryption based content key acquisition scheme to achieve privacy.

Keywords

data privacy; digital rights management; private key cryptography; DRM system accountability; DRM system security; HIBE scheme; PKG; commutative encryption; content key acquisition scheme; digital rights management; domain PKG; first level authority; hierarchical identity based encryption; multiparty multilevel DRM system; privacy preserving hierarchical content distribution; private key generator; root PKG; trusted party act; Encryption; Licenses; Media; Privacy; Public key; Servers; Commutative Encryption; DRM; HIBE; Privacy;

fLanguage

English

Publisher

ieee

Conference_Titel

Information and Communication Technologies (WICT), 2012 World Congress on

Conference_Location

Trivandrum

Print_ISBN

978-1-4673-4806-5

Type

conf

DOI

10.1109/WICT.2012.6409134

Filename

6409134