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1. Logic Mind Technologies
Vijayangar (Near Maruthi Medicals), Bangalore-40
Ph: 8123668124 // 8123668066
A Low-Power Hybrid RO PUF With
Improved Thermal Stability for Lightweight
Applications
Abstract—Ring oscillator (RO)-based physical unclonable function (PUF) is
resilient against noise impacts, but its response is susceptible to temperature
variations. This paper presents a low-power and small footprint hybrid RO PUF
with a very high temperature stability, which makes it an ideal candidate for
lightweight applications. The negative temperature coefficient of the low-power
subthreshold operation of current starved inverters is exploited to mitigate the
variations of differential RO frequencies with temperature. The new architecture
uses conspicuously simplified circuitries to generate and compare a large number
of pairs of RO frequencies. The proposed ninestage hybrid RO PUF was fabricated
using global foundry 65-nm CMOS technology. The PUF occupies only 250 μm2
of chip area and consumes only 32.3 μW per challenge response pair at 1.2 V and
230 MHz. The measured average and worst-case reliability of its responses are
99.84% and 97.28%, respectively, over a wide range of temperature from −40 to
120 ◦C.

2. SOFTWARE REQUIREMENT:
 ModelSim6.4c.
 Xilinx 9.1/13.2.
HARDWARE REQUIREMENT:
 FPGA Spartan 3.
PROJECT FLOW:
First Review:
Literature Survey
Paper Explanation
Design of Project
Project Enhancement explanation
Second Review:
Implementing 40% of Base Paper
Third Review
Implementing Remaining 60% of Base Paper with Future Enhancement (Modification)
For More Details please contact
Logic Mind Technologies
Vijayangar (NearMaruthi Medicals), Bangalore-40
Ph: 8123668124 // 8123668066
Mail: logicmindtech@gmail.com