Power and Timing Side Channels for PUFs and their Efficient Exploitation

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Provided by: International Association for Cryptologic Research
Topic: Security
Format: PDF
The authors discuss the first power and timing side channels on Strong Physical Unclonable Functions (Strong PUFs) in the literature, and describe their efficient exploitation via adapted Machine Learning (ML) techniques. Their method is illustrated by the example of the two currently most secure (CCS 2010, IEEE T-IFS 2013) electrical strong PUFs, so-called XOR arbiter PUFs and lightweight PUFs. It allows them for the first time to tackle these two architectures with a polynomial attack complexity.
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