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Physical Unclonable Function (PUF) is one of the most efficient technique to generate unique and random identification for chip authentication. Ring oscillator (RO) PUF takes advantage of delay variations of a pair of ROs, which is easy to implement on FPGAs. An important consideration for FPGA based RO PUF is how to eliminate systematic variation without reducing the number of output bits. To address...
Silicon physical unclonable functions (PUFs) utilize the variation during silicon fabrication process to extract information that will be unique for each chip. There have been many recent approaches to how PUF can be used to improve security-related applications. However, it is well known that the fabrication variation has very strong spatial correlation<xref rid="fn1" ref-type="fn">...
Silicon physical unclonable functions (PUF) utilize fabrication variation to extract information that will be unique for each chip. However, fabrication variation has a very strong spatial correlation and thus the PUF information will not be statistically random, which causes security threats to silicon PUF. We propose to decouple the unwanted systematic variation from the desired random variation...
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