A dynamic PUF anti-aging authentication system based on restrict race code

Abstract

This paper presents a PUF (physical unclonable functions) authentication mechanism which can combat aging based on restrict race code (RRC). PUF provide a mechanism for identifying an integrated circuit based on the intrinsic variations of physical components uniquely and provide a cheap and secure alternative to random message storage on devices. However, due to its own characteristics, the chip-level PUF circuit reliability is easily affected by environment. The effect of reversible temporal noise on PUF is well studied and has obtained good effect (e.g. temperature, voltage), but sufficient attention has not been given so far to analyze the effect of the irreversible temporal variabilities (e.g. aging on PUF). This paper proposes a dynamic PUF authentication method, which is based on the RRC with two-ring strong characteristics structure. A combination of hardware and software system is used to improve the efficiency of authentication, and in an FPGA (field-programmable gate array)-based SRAM (static random access memory) PUF are used as an experimental object to verify the feasibility of this design. And this system can enhance the authentication system safety from the CVC (characteristic value challenge) randomness test.

创新点

现有的PUF(Physical unclonable functions)电路鲁棒性研究大都针对温度,电压,磁场等可逆噪声干扰,也取得了很好的应对效果。但是,对于电路老化这一不可逆噪声干扰却缺乏研究。本文完成了一种基于制约竞争码(RRC-Restrict Race Code)的PUF动态抗老化认证系统设计,通过使用软硬件结合的方式来提高认证效率,并以SRAM PUF为实验对象验证了该设计的可行性。而在接下来的工作中作者将着重于提高该系统的安全性。