· 2012
Security analysis of logic obfuscation
- 489citations
- 2012year
Short summary
A new attack deciphers logic-obfuscated IC designs in linear time, but fixes can make obfuscation truly exponential.
AI-generated from the title and abstract; the full text is not read.
Key points
- Logic obfuscation methods like EPIC can be vulnerable to attacks that decipher the design.
- The demonstrated attack deciphers obfuscated netlists in time linear to the number of keys.
- New techniques exist to fix this vulnerability, achieving exponential security.
- Globalization of IC design flow increases risks of piracy and hardware trojans.
AI-generated from the title and abstract; the full text is not read.
Abstract
Due to globalization of Integrated Circuit (IC) design flow, rogue elements in the supply chain can pirate ICs, overbuild ICs, and insert hardware trojans. EPIC [1] obfuscates the design by randomly inserting additional gates; only a correct key makes the design to produce correct outputs. We demonstrate that an attacker can decipher the obfuscated netlist, in a time linear to the number of keys, by sensitizing the key values to the output. We then develop techniques to fix this vulnerability and make obfuscation truly exponential in the number of inserted keys.
The authors' abstract, as published at the source., 2012 · DOI ↗
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Field: Hardware and Architecture
Hardware and ArchitectureComputer Science