NDLI: N-variant IC design: Methodology and applications

Content Provider	IEEE Xplore Digital Library
Author	Alkabani, Y. Koushanfar, F.
Copyright Year	2008
Description	Author affiliation: CS Dept., Rice Univ., Houston, TX (Alkabani, Y.)
Abstract	We propose the first method for designing N-variant sequential circuits. The flexibility provided by the N-variants enables a number of important tasks, including IP protection, IP metering, security, design optimization, self-adaptation and fault-tolerance. The method is based on extending the finite state machine (FSM) of the design to include multiple variants of the same design specification. The state transitions are managed by added signals that may come from various triggers depending on the target application. We devise an algorithm for implementing the N-variant IC design. We discuss the necessary manipulations of the added signals that would facilitate the various tasks. The key advantage to integrating the heterogeneity in the functional specification of the design is that we can configure the variants during or post-manufacturing, but removal, extraction or deletion of the variants is not viable. Experimental results on benchmark circuits demonstrate that the method can be automatically and efficiently implemented. Because of its lightweight, N-variant design is particularly well-suited for securing embedded systems. As a proof-of-concept, we implement the N-variant method for content protection in portable media players, e.g., iPod. We discuss how the N-variant design methodology readily enables new digital rights management methods.
Starting Page	546
Ending Page	551
File Size	321914
Page Count	6
File Format	PDF
ISBN	9781605581156
ISSN	0738100X
DOI	10.1145/1391469.1391606
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-06-08
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Association for Computing Machinery, Inc. (ACM)
Subject Keyword	Application specific integrated circuits Design methodology Protection Portable media players Sequential circuits Security Design optimization Fault tolerance Automata Algorithm design and analysis Physical Security N-variant Design Digital Rights Management
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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