Techniques for Design and Implementation of Secure Reconfigurable PUFs

TitleTechniques for Design and Implementation of Secure Reconfigurable PUFs
Publication TypeJournal Article
Year of Publication2009
AuthorsMajzoobi, M., F. Koushanfar, and M. Potkonjak
JournalACM Transactions on Reconfigurable Technology and Systems (TRETS)
Date PublishedMarch

Physically unclonable functions (PUFs) provide a basis for many security and digital rights
management protocols. PUF-based security approaches have numerous comparative strengths
with respect to traditional cryptography-based techniques, including resilience against physical
and side channel attacks and suitability for lightweight protocols. However, classical delay-based
PUF structures have a number of drawbacks including susceptibility to guessing, reverse engineering,
and emulation attacks, as well as sensitivity to operational and environmental variations.
To address these limitations, we have developed a new set of techniques for FPGA-based PUF
design and implementation. We demonstrate how reconfigurability can be exploited to eliminate
the stated PUF limitations. We also show how FPGA-based PUFs can be used for privacy protection.
Furthermore, reconfigurability enables the introduction of new techniques for PUF testing.
The effectiveness of all the proposed techniques is validated using extensive implementations,
simulations, and statistical analysis.



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