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2017 | OriginalPaper | Buchkapitel

4. Gate Camouflaging-Based Obfuscation

verfasst von : Xueyan Wang, Mingze Gao, Qiang Zhou, Yici Cai, Gang Qu

Erschienen in: Hardware Protection through Obfuscation

Verlag: Springer International Publishing

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Abstract

Circuit camouflaging is a layout-level technique to protect VLSI design from being attacked by reverse engineering. It hides design information by configurable logic units that can be configured to perform different functionalities with identical looks to the attackers. In this chapter, after introducing the primitive for gate camouflaging-based obfuscation, we analyze its vulnerability to one specific attack based on circuit partitioning. We then elaborate this attack and discuss two practical countermeasure methods. We explain that the security of gate camouflaging-based obfuscation not only depends on the number of gates being obfuscated, but also which gates we select for obfuscation and the number of different functionalities these gates can implement. As an example, we show how to perform a multiplexer-based gate camouflaging.

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Metadaten
Titel
Gate Camouflaging-Based Obfuscation
verfasst von
Xueyan Wang
Mingze Gao
Qiang Zhou
Yici Cai
Gang Qu
Copyright-Jahr
2017
DOI
https://doi.org/10.1007/978-3-319-49019-9_4

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