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Ring oscillator (RO)-based physical unclonable function (PUF) is an emerging hardware security primitive but its response reproducibility is susceptible to changes in operating conditions and device aging. Present solutions to increase RO PUF reliability either incur large hardware overhead or require sophisticated RO selection algorithm. This paper exploits the optimal biasing of current starved...
Physically unclonable functions (PUFs) facilitate many security applications such as secure key generation, device authentication, counterfeiting detection and prevention. This paper presents an area efficient PUF with high reliability. We exploit the process variation of a single load transistor for the current mirror working at the subthreshold region, which is converted to a unique digital signature...
Ring oscillator (RO) based physical uncloanble function (PUF) is an emerging hardware security primitive but its response is susceptible to changes in operating conditions. Current solutions either incur large hardware overhead or require sophisticated RO selection algorithms to increase its reliability. This is the first paper that exploits the temperature invariant biasing of three different types...
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