基于电流镜的电流型PUF电路设计
Design of current type PUF based on current mirror
张学龙 1汪鹏君 1张跃军1
作者信息
- 1. 宁波大学电路与系统研究所,浙江宁波315211
- 折叠
摘要
通过对物理不可克隆函数(Physical Unclonable Functions,PUF)电路和电流镜的研究,提出一种基于电流镜的电流型PUF电路设计方案.该方案首先利用多路电流镜产生随机电流,然后使用电流型敏感放大器比较两路电流的大小,最后产生随机的输出响应.在SMIC 65nm工艺下,利用全定制方法设计PUF电路,在最小尺寸下PUF单元的版图面积为2.59μm× 1.51 μm.通过Spectre软件,在不同电压、温度等工作环境下进行Monte Carlo仿真验证,分析PUF电路的识别能力.实验结果表明所设计的PUF电路逻辑功能正确,且具有良好的随机性和稳定性,可广泛应用于密钥产生和设备认证等领域.
Abstract
By researching the Physical Unclonable Functions (PUF) and the current mirror,a current type PUF based on current mirror is proposed.Firstly,multipath currents are generated from multiple current mirrors.Then,two path currents are chosen as the input of the current type sense amplifier.After comparing the two currents,it outputs a random state.Following the fully custom flow,PUF is designed in SMIC 65nm technology and the minimum layout area of the PUF cell is 2.59μm×l.51μm.The outputs of the PUF are analyzed via Monte Carlo simulations under various supply voltages and temperatures by the tool of Spectre.Randomness and robustness of the PUF are observed from the experiment results.It can be effectively used for secret key generation and device authentication.
关键词
物理不可克隆函数/多路电流镜/电流型敏感放大器/电路设计Key words
physical unclonable functions/multiple current mirrors/current type sense amplifier/circuit design引用本文复制引用
基金项目
国家自然科学基金(61274132)
高等学校博士学科点专项科研基金(20113305110005)
宁波大学优秀博士学位论文培育基金(PY20100003)
出版年
2013
NETL
NSTL
维普
万方数据