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A Secure Content Delivery System Based on a Partially Reconfigurable FPGA
Yohei HORI Hiroyuki YOKOYAMA Hirofumi SAKANE Kenji TODA
IEICE TRANSACTIONS on Information and Systems
Publication Date: 2008/05/01
Online ISSN: 1745-1361
Print ISSN: 0916-8532
Type of Manuscript: Special Section PAPER (Special Section on Information and Communication System Security)
Category: Contents Protection
field-programmable gate array (FPGA), partial run-time reconfiguration (RTR), content protection, digital rights management (DRM),
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We developed a content delivery system using a partially reconfigurable FPGA to securely distribute digital content on the Internet. With partial reconfigurability of a Xilinx Virtex-II Pro FPGA, the system provides an innovative single-chip solution for protecting digital content. In the system, a partial circuit must be downloaded from a server to the client terminal to play content. Content will be played only when the downloaded circuit is correctly combined (=interlocked) with the circuit built in the terminal. Since each circuit has a unique I/O configuration, the downloaded circuit interlocks with the corresponding built-in circuit designed for a particular terminal. Thus, the interface of the circuit itself provides a novel authentication mechanism. This paper describes the detailed architecture of the system and clarify the feasibility and effectiveness of the system. In addition, we discuss a fail-safe mechanism and future work necessary for the practical application of the system.