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An Objective and Child-friendly Assessment of Arm Function by Using a 3-D Sensor

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Intrinsic Physical Unclonable Function (PUF) Sensors in Commodity Devices.

Shuai Chen¹, Bing Li², Yuan Cao³

¹Shenzhen Research Institute, SEU-FiberHome Joint Research Center, School of Cyber Science and Engineering, School of Microelectronics, Southeast University, Nanjing 210000, China. chenshuai_ic@seu.edu.cn.

Sensors (Basel, Switzerland)

|May 31, 2019

Summary

This study introduces novel Dynamic Random Access Memory (DRAM) Physical Unclonable Function (PUF) sensors. These intrinsic DRAM PUF sensors require no hardware modification and can be integrated into existing devices for environmental sensing and secure key generation.

Keywords:

DRAM PUF PUF sensor key generation scheme physical unclonable functions

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Area of Science:

Computer Engineering
Cybersecurity
Embedded Systems

Background:

Physical Unclonable Functions (PUFs) possess environment-dependent characteristics useful for sensing.
Existing PUF sensors often require dedicated circuitry, limiting their integration into commercial off-the-shelf devices.
Dynamic Random Access Memory (DRAM) based PUFs offer a potential solution due to their intrinsic nature.

Purpose of the Study:

To analyze and categorize various PUF sensors.
To focus on intrinsic DRAM PUF-based sensors that do not require hardware modification.
To demonstrate the feasibility and practicability of DRAM PUF-based sensors for environmental sensing and secure key generation.

Main Methods:

Categorization of existing PUF sensor approaches.
Development and implementation of intrinsic DRAM PUF-based sensors.
Experimental validation on Raspberry Pi hardware.
Integration of DRAM PUF sensors into a key generation scheme.

Main Results:

Preliminary experimental results on Raspberry Pi confirm the feasibility of the proposed DRAM PUF-based sensor design.
The intrinsic DRAM PUF sensor requires no hardware modifications, making it suitable for integration into existing devices.
Configuring the DRAM PUF sensor within a key generation scheme demonstrated improved practicability.

Conclusions:

Intrinsic DRAM PUF-based sensors offer a viable, hardware-agnostic solution for environmental sensing.
The developed sensors enhance security authentication while being easily implementable in commercial devices.
The integration into a key generation scheme highlights the practical applicability of these novel sensors.