Title :
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
fDate :
Oct. 30 2012-Nov. 2 2012
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;
Conference_Titel :
Information and Communication Technologies (WICT), 2012 World Congress on
Conference_Location :
Trivandrum
Print_ISBN :
978-1-4673-4806-5
DOI :
10.1109/WICT.2012.6409134
