A DRM based on renewable broadcast encryption

Mahalingam Ramkumar, Nasir Memon

Research output: Chapter in Book/Report/Conference proceedingConference contribution


We propose an architecture for digital rights management based on a renewable, random key pre-distribution (KPD) scheme, HARPS (hashed random preloaded subsets). The proposed architecture caters for broadcast encryption by a trusted authority (TA) and by "parent" devices (devices used by vendors who manufacture compliant devices) for periodic revocation of devices. The KPD also facilitates broadcast encryption by peer devices, which permits peers to distribute content, and efficiently control access to the content encryption secret using subscription secrets. The underlying KPD also caters for broadcast authentication and mutual authentication of any two devices, irrespective of the vendors manufacturing the device, and thus provides a comprehensive solution for securing interactions between devices taking part in a DRM system.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsS. Li, F. Pereira, H.Y. Shum, A.G. Tescher
Number of pages11
StatePublished - 2005
EventVisual Communications and Image Processing 2005 - Beijing, China
Duration: Jul 12 2005Jul 15 2005


OtherVisual Communications and Image Processing 2005


  • Broadcast Encryption
  • DRM
  • Key Pre-distribution

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics


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