PUF轻量级设备认证及其实现

PUF-based Lightweight Device Authentication and its Implementation

传感器、穿戴设备等低能耗设备具有移动性好、灵活性高的优点,但其存储与计算能力较低,因此需要轻量级的安全协议以降低能耗。物理不可克隆函数(PUF)是一种"数字指纹",可用来做设备的唯一标识。结合PUF的抗克隆性和可穿戴设备的移动性特点,提出轻量级的低能耗设备认证协议并实现认证系统。该系统基于C/S架构,在手机客户端与智能手表应用扩展中实现认证系统,包括SRAM PUF模块、可穿戴设备认证器模块、手机认证器模块、服务器检测器模块等。此系统实现了数据串口、蓝牙传输、与服务器交互、信息加密等功能,并且可有效实现身份认证。

Low energy consumption devices such as sensors and wearable devices possess great attributes of mobility and flexibility.However,their storage and computing power are relatively low,so lightweight security protocols are needed to reduce their energy consumption.A physical unclonable function（PUF）is a＂digital fingerprint＂that can be used to make a unique identification of a device.Based on the characteristics of PUF and mobility of wearable equipment,this paper presents a lightweight low energy equipment authentication protocol and realizes the authentication system.This system is based on C/S architecture,realizes the authentication in mobile phone client and smart watch application extension,including SRAM PUF module,wearable equipment certification module,mobile phone authentication module,server detector module and so on,realizes the functions of data serial port,Bluetooth transmission,interaction with server,information encryption,and can effectively realize identity authentication.