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电子学报  2015 

基于最优控制电压的高鲁棒性PUF电路设计

DOI: 10.3969/j.issn.0372-2112.2015.05.011, PP. 907-910

Keywords: 物理不可克隆函数,零温度系数点,鲁棒性,电路设计

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Abstract:

物理不可克隆函数(PhysicalUnclonableFunctions,PUF)电路作为一种新型的信息安全电路,依赖集成电路制造过程中硅器件的固有工艺偏差产生密钥.本文提出一种高鲁棒性PUF电路设计方案,首先分析MOSFET在零温度系数点(ZeroTemperatureCoefficient,ZTC)的工作特性,然后结合提高PUF电路鲁棒性的途径,确定PUF电路的结构及最优控制电压,最终达到密钥稳定可靠的目的.在TSMC65nmCMOS工艺下对所设计的PUF电路进行版图设计,面积为14.89μm×12.14μm.实验结果显示在最优控制电压下PUF电路的鲁棒性最低为96%.

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