A Reliable, Low-Cost, Low-Energy Physically Unclonable Function Circuit Through Effective Filtering
Shih‐Lien Lu, Cheng-En Lee, Peter Noel, Saman Adham, Ted Wong, Jonathan Chang · 2019
A physically unclonable function (PUF) targeting internet of things is implemented in 28nm CMOS. By filtering, the reliability of a PUF is improved leading to lower overhead. Measured results show that the proposed design can operate correctly at temperatures ranging from -40°C to 125°C and supply from 0.81V to 0.99V. The raw PUF cell is 1.19μm2in area and operates at 1.54fJ of energy per bit. Counting all the overhead, the effective bit area is 170μm2and consumes 13pJ of energy per bit to operate. It is the most energy efficient design published so far.