Technology Encryption An Overview of the Advanced Access Content System (AACS)
An Overview of the Advanced Access Content System (AACS)
Kevin Henry, Jiayuan Sui, Ge Zhong
David R. Cheriton School of Computer Science
University of Waterloo
Abstract
The Advanced Access Content System (AACS) is a content distribution system for recordable and pre-recorded media, currently used to protect HD-DVD and Blu-Ray content. AACS builds off of its predecessors, the Content Scramble System (CSS) and Content Protection for Pre-recorded / Recordable media (CPRM/CPPM), adding more robust key distribution and revocation capabilities. In this paper, a concise summary of the lengthy AACS specification for pre-recorded media is provided, with emphasis on how the AACS keys are organized, distributed, and revoked using subset difference trees. A description of the AACS mechanisms for recordable content and on-line content is also provided.
 Overview of AACS Blu-ray Encryption.pdf | [Download Article] | 521 Kb | 05/07/10 21:46 |
